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4220 Submerged Probe Flow Meter User Manual

1. ENTER PRINTER SPEED e OFF 1 2 HR 1 HR e 2 HR 4 HR If you select OFF the printer will be disabled No data will be printed The flow meter will however still print reports if you activate that in step 9 The choice made from the other speeds depends on the amount of data you need to record If you are recording from a stable situation and are using only one data line and you want to achieve maximum life for the paper roll select a lower speed for chart advance If there is a great deal of activity in your stream and you need to use all three data lines selection of a faster chart speed will produce a chart more easily read and interpreted After you select the printer speed the flow meter will ask you to define what you want depicted by LINE A The printer can print as many as three separate lines at the same time The following will appear INPUT FOR PRINTER LINE A e LEVEL FLOW RATE pH D O OFF e 4220 Flow Meter Section 2 Programming TEMPERATURE YSI pH YSI D O YSI CONDUC TIVITY and YSI TEMP can also appear Remember that menus in parentheses may not appear due to previous program selections Either pH or D O may appear but not both The various YSI options will only appear if you enabled the YSI 600 in step 1 You must have the appropriate probes to sense these conditions Select OFF if you do not need this line If you select pH D
2. Included are sections on removing the flow meter chassis and fuse replacement There are also general comments on servicing electronic equipment with special consideration of CMOS cir cuitry 6 5 1 Disassembling the You can remove the flow meter chassis from the cabinet for Flow Meter inspection and servicing Unscrew the four screws two at the top and two at the bottom that hold the flow meter chassis in the cabinet You can then lift the chassis out by inserting the thumb or index finger from each hand into the upper right and lower left corners of the opening for the internal printer Do not try to lift the flow meter out of its case by holding on to any part of the printer mechanism This could bend or distort part of the printer possibly damaging it Once the chassis has cleared the case you can hold onto the edges with both hands and lift it free of the case 6 10 4220 Flow Meter Section 6 Maintenance and Service M Note If you disassemble the flow meter for servicing you will also remove the aluminum chassis covers to access the circuitry Always replace these covers when repairs have been com pleted The covers protect the circuit boards and also reduce signal emissions that could interfere with the operation of nearby electronic equipment For the same reason do not remove any of the ferrite beads or alter the wiring harnesses inside the cabinet in any way Figure 6 6 Lifting the Flow Meter from the
3. TEMPERATURE RAINFALL YSI pH YSI DO YSI CONDUCTIVITY and YSI TEMP may also appear The above conditions are all shown in parentheses because they may not be available to you by the time you reach this menu The menus that do appear will depend on programming selections made earlier in the program At least one of the conditions will be available to you If you select LEVEL from CONDITION the following will appear LEVEL GREATER THAN LESS THAN RATE OF CHANGE e After you select one of these options the flow meter will request that you enter a value for example if you selected GREATER THAN LEVEL GREATER THAN X XX FEET or other units of measure Enter a maximum value for the selected condition which if exceeded will enable the sampler If you select LESS THAN the flow meter will ask you to enter a minimum value for the selected condition If the condition falls below that value later the flow meter will enable the sampler If you select RATE OF CHANGE the flow meter will ask you to enter two values one for the condition and the other for a period of time over which the change occurs After you have determined what condition will signal the sampler and under what circumstances the following menu will appear SELECT OPERATOR e DONE ORe AND This step allows you to trigger the sampler from a single con dition or from two conditions Suppose you wanted to trigger the sam
4. 0 0 0 c cece 5 4 5 3 4 20 mA Analog Outputs External and Internal 0 000000 us 5 4 5 3 1 External Analog Output Interface 0 0 0 ccc eee 5 5 5 3 2 Internal Multiple Analog Output Board 0 0 0 0 cee eee 5 6 5 4 Pacing Non Isco Equipment 0 0 cette een nes 5 8 5 5 Tipping Bucket Rain Gauge 0 0 sunnere nenne rrera 5 11 5 6 Isco Flowlink Software 0 ccc een teen eens 5 12 5 7 High Low Alarm Relay Box 0 00 c cece eee nen eens 5 12 5 eC Ac Installation se mi re ls sect LAS seh rad EEE Sek Goad ede a A Bodar a Gd 5 13 5 7 2 Wiring to a 4200 Series Flow Meter 0 0 0 ccc cece ens 5 13 5 8 Parameter Sensing with Isco 4200 Series Flow Meters 055 5 13 5 8 1 Installation of Parameter Probes 0 0 cece eee eens 5 13 5 9 The Temperature Probe 0 cece tent ene nas 5 14 5 10 The pH Probes ois 0s rie eer ad ee toes Gk Bt eee hee ee les De 5 15 4220 Flow Meter Table of Contents 5 10 1 pH Probe Calibration 0 ccc cette 5 17 5 10 2 pH Probe Installation Guidelines 0 0 0 0 cee eee ees 5 18 5 10 3 Storage and Maintenance of pH Probes 00 00 cee eee 5 20 5 11 The Dissolved Oxygen D O Probe 0 0 ccc eens 5 21 5 11 1 How the D O Probe Works 0 0 ccc ee eens 5 22 5 11 2 Probe Preparation s seccina en os Godse eed aad aka ace gabe 5 22 5 11 3 Membrane Thickness
5. 2 29 4220 Flow Meter Section 2 Programming 2 30 If you select V NOTCH the following will appear SELECT V NOTCH WEIR ANGLE IN DEGREES 22 50030 45 60 909 120 If you select RECTANGULAR the following will appear END CONTRACTIONS ON RECTANGULAR WEIR e YES e NO e If you select YES the following will appear RECTANGULAR WEIR WITH END CONTRACTIONS ENTER CREST LENGTH XX XXX FEET or meters If you select CIPOLLETTI the following will appear CIPOLLETTI WEIR ENTER CREST LENGTH XX XXX FEET or meters If you selected FLUME for the type of standard device the fol lowing display will appear SELECT TYPE OF FLUME e PARSHALL e PALMER BOWLUS e LEOPOLD LAGCO e Also available with the arrow key SELECT TYPE OF FLUME e HS e Hee HL e TRAPEZOIDAL If you select PARSHALL the following will appear SELECT PARSHALL SIZE e q e oe 2 eo3 eeG ee9 oo eof 5ieeD ie If you press the right arrow key several times the sizes shown below will move onto the screen SELECT PARSHALL SIZE eJeefoediceGieeGiece 10 o o De If you select PALMER BOWLUS this will appear SELECT PALMER BOWLUS SIZE e 4 eeG eo Bree QQ ee 10 0 o Dee 15 o o 18 o 6o21 o If you press the right arrow key several times the sizes shown below will move onto the screen SELECT PALMER BOWLUS SIZE e 24 ee 27 ee 30 ee 48 e 4220 Flow Meter Sectio
6. 4220 Flow Meter Section 5 Options and Accessories Steps for installing a new membrane 1 Secure the probe body so it is in an upright position You can use a vise adjustable wrench or locking pliers etc whatever is satisfactory Do not apply too much force to the probe body or you will crack it 2 Fill the cavity around the silver anode with electrolyte to the point where any more electrolyte would spill over The liquid should be free of bubbles and should completely cover the tip of the sensor 3 Lightly lay the membrane across the top of the probe If you do this carefully there will be no bubbles under the membrane M Note Handle the membrane material with care touching it at the ends only 4 Place the O ring on top of the membrane generally con forming to the circumference edge of the probe 5 Place the thumb and index finger from both hands opposite each other on the O ring at equal distances 6 Roll the O ring down over the end of the probe being care ful not to touch the membrane where it covers the probe 7 Trim off excess membrane with scissors or a sharp knife Check to see that the stainless steel rod thermistor pro truding below the liquid cup is not covered by extra mem brane M Note There must be no bubbles under the membrane and no creases in it for the probe to function correctly 8 Shake any excess KCl solution from the probe Reinstall the sensor guard Keep the sensor in a
7. D 9 4220 Flow Meter Appendix D General Safety Procedures E 1 Overview 4220 Flow Meter Appendix E Material Safety Data Sheets This appendix provides Material Safety Data Sheets for the des iccant used by the 4220 Flow Meter Isco cannot guarantee the accuracy of the data Specific ques tions regarding the use and handling of the products should be directed to the manufacturer listed on the MSDS E 1 4220 Flow Meter Appendix E Material Safety Data Sheets E 2 Distributed by Rainbow Technology Corp 1 800 637 6047 or 205 733 0333 Page Lora Product 79355 AAN MATERIAL SAFETY DATA SHEET MULTISORB Effective Date February 14 2009 NY Multisorb Technologies Inc MSDS Number M75 Section 1 Product and Company Information Product Name Silica gel indicating Product Use Desiccant absorbent Grades Silica gel indicating Synonyms Amorphous silica gel SiO silicon dioxide amorphous Company Multisorb Technologies Inc Street Address 325 Harlem Road City State Zip Country Buffalo NY 14224 1893 USA Telephone Number 716 824 8900 USA Monday Friday 8 00 5 00 EDT Fax Number 716 824 4091 USA Website E Mail multisorb com Section 2 Hazard Identification Emergency Overview A blue to pink granular material that poses little or no immediate hazard This material is not combustible Potential Health Effects Eyes Dust and or product may cause ey
8. Selection of OFF from this menu will disable this feature and there will be no further references to it The Serial Output data appears on the Interrogator connector of the flow meter You should not use a standard interrogator cable for this application as the sense line in the standard cable is shorted to ground Selection of ON from this menu will enable the feature and cause the following display to appear SELECT BAUD RATE N81 e 9600 4800 2400 e 1200 After you select the appropriate baud rate the program will advance to the following menu SERIAL OUTPUT INTERVAL e15 SEC ee1 MINe 5 MINe 15MIN e This menu lets you select how often the flow meter transmits the ASCII text string Following is an example of a string showing all options In actual practice there are no carriage returns in the text string DE Theresa Street ID 0721577657 MO 4250 TI 35317 343715 BV 12 3 LE 0 1000 VE 0 1225 FL 0 00 1555 VO 2 199325 FV 2 199325 RV 0 000000 SV 2 195539 SS 1 B 0 35317 307384 B0 35317 269907 B0 35317 232593 CS 10819 If you select any of these outputs the flow meter will request that you turn them on or off If you are running on battery and do not need these options select OFF Otherwise select ON After the OPTIONAL OUTPUTS menus have been set press Enter The display will return to the SETUP menu The alarm box also called the High Low Alarm Box is an Isco product that allows you to
9. Sharp Edges Sharp edges of items in or near a manhole may cause cuts or bruises 4220 Flow Meter Appendix D General Safety Procedures D 2 Lifting Injuries Unless proper tools are used to remove manhole covers back injuries or injuries to hands or feet may result 2 Planning Advance planning should include arrangements for test equipment tools ventilating equipment protective clothing traffic warning devices ladders safety harness and adequate number of personnel Hasty actions may result in serious injuries Time spent in the manhole should be kept to a minimum 3 Adverse Atmosphere Refer to Table D 1 Hazardous Gases at the end of this appendix Before workers enter a manhole tests should be made for explosive atmosphere presence of hydrogen sulfide and oxygen deficiency Combustible or toxic vapors may be heavier than air so the tests on the atmo sphere must be run at least 3 4 of the way down the manhole Whenever adverse atmosphere is encountered forced venti lation must be used to create safe conditions After the venti lating equipment has been operated for a few minutes the atmosphere in the manhole should be retested before anyone enters the manhole When explosive conditions are encountered the ventilating blower should be placed upwind to prevent igniting any gas that is emerging from the opening When a gasoline engine blower is used it must be located so that exhaust fumes c
10. E 3 4220 Flow Meter Appendix E Material Safety Data Sheets E 4 Multisorb Technologies Inc Silica gel Indicating February 14 2009 Page 3 of 5 Component Name OSHA ACGIH Other Recommended PEL TLV Limits Silica gel TWA 20 mppef Not Applicable NIOSH REL F 80 mg m SiO TWA 6 mg m IDLH 3000 mg m Cobalt chloride TWA l mg m TWA 02 mg m as NIOSH REL cobalt metal fume amp dust cobalt TWA 05 mg m Cobalt metal dust and fume as cobalt IDLH 20 mg m as metal dust amp fume as Co Section 9 Physical and Chemical Properties Appearance Pink to blue granules Vapor Density Not applicable Odor None Boiling Point 4046 F 2230 C Physical State Solid granule Melting Point 3110 F 1710 PH Not applicable Solubility Insoluble in water Vapor Pressure Not applicable Specific Gravity 2 1 Evaporation Rate Not applicable Odor Threshold Not applicable Coefficient of water Not applicable Auto ignition Not applicable oil distribution Point Flammable Not applicable Flammable Not applicable Limits Flash Point Not applicable Section 10 Stability and Reactivity Stable Conditions to avoid Stability Incompatibility Hazardous Decomposition Products Hazardous Polymerization Moisture and high humidity environments None Will not occur Water fluorine oxygen difluoride chlorine trifluoride Section 11 Toxicological
11. HEM asea d Bunesqiyey Hd XxX X a qeIsuaYyM 1717 SS 1d uonnjos O OL yd u a2ejd pueaqoid su iy s Man UO euq 2D poo9 S uo uq 2 poo ON Sa pu1 a0 HulWeM JOLI9 ON SA APIWANO ururem 10117 ON Hd XxX ajqeisuayM 7U ssalg uonnjos O OL Yd ul aed pueaqoid su ly SOA UO euq 112 poo ON SAA AP WA uurem 10117 UORNIOS 0 Z Ud Ul a2eld puyaqoigasury lt Hd xx X a gelsuayM Ja UF ssalg SAA UO eq Je POO 3 ON Sa pruno burwemysos 13 ON eM asea d Bugesqued a Hd XxX a qelsuayM 18 UJ SS ld uonnjos Z yd ul Dejd pueaqoud asury SAK uo e1q 2 pooy ON Sa APlWano HulusemyJos 13 t ulul eM pong ON yem asea d Buneuqie gt a Hd XXX a qeisuaymM 7U SS ld uonnjos o y yd ul adejd pueaqoid asuly A o q YAPNPpUOD Yd UON P yeaq ed OLsazawuesed 009 SA A N 1EM asea Buzea Hd XX X Apearuaym 1970 5 1d uolnjos 0 Z yd ul ade dpue aqoid asuly SO UO eql ED pooD AA Ur UI eM p uano urusrem 10117 ua ON PEM IVd Buneiqiyey A Hd xx x a geysuaym 19717 ssaig uonnyos O y yd ul adejdpue aqoid asury A OLHd 8 ZH pH OL HA8 ZHd ZHdg pH uolesgije gt Ud 009 I SA
12. tions based on slope diameter and roughness of the pipe The Manning formula is named for its developer Robert Manning a 19th century Irish civil engineer There is no primary measuring device as such Instead the pipe with considerations for its slope and internal roughness serves as the primary device The 4220 Flow Meter can calculate flow in round pipes rectangular U shaped or trapezoidal channels based on this formula Data Point Flow Conversion DATA POINTS calculates flow based on a set of user entered data points for a flow stream Data consist of correlated level and flow measurements for the stream Like the Equation method of flow conversion this flow con version is most commonly used where the primary measuring device is nonstandard but where tables of level and flow rate data are available from the device manufacturer The 4220 Flow Meter has space for four sets of data with as many as fifty points per set The flow meter then calculates flow from these data tables using a three point interpolation Adjust Level Parameters calibrates the measuring sensors that provide the flow meter with level and other information In this step you set the level that the flow meter measures First you measure as accurately as possible the level in the flow stream Then you enter this value with the numeric keys Accuracy is important Remember that measured level provides the basis for calculated flow in the flow meter The flow m
13. On Off Select Option Program Setup This time select Program and do the following Program Section Units Of Level Measure Ft In M mm Not Measured Flow Rate Units of Measure GPS GPM GPH MGD CFS CFM CFH CFD LPS M3S M3M M3H M3D AFD Totalized Volume Units GAL MGAL CF L M3 AF Deg C 2 Flow Conversion Level to Flow Rate 43 44 45 46 47 48 49 50 4220 Flow Meter Appendix C Programming Worksheets Rain Gauge Inches MM Not Measured pH Units Of Measure pH Not Measured D O Units MG L PPM Not Measured Temperature Units Deg F Deg C Not Measured YSI pH Units Of Measure pH Not Measured YSI D O Units MG L PPM Not Measured YSI Conductivity Parameter Specific Conductivity Salin ity Conductivity T D S Units Coeff YSI Temperature Deg F Deg C Not Measured Flow Conversion Type Weir flume Equation Manning Data Points 2 Type Of Device Weir Flume 3 Select Type Of Weir V notch Rectangular Cipolletti 4 Select V notch Weir Angle In Degrees 22 5 30 45 60 90 120 5 End Contractions On Rectangular Weir Yes No 10 11 12 13 14 15 16 17 18 19 20 21 Rect Weir With End Contractions Enter Crest Length Feet or meters Cipolletti Weir Enter Crest Length__ Feet or meters Type Of Flume Palmer Bowlus Parshall Trapezoidal H HS HL Leopold Lagco Palmer Bowlus Size 4
14. This is called the glass mono electrode The glass is of special composition sensitive only to hydrogen ions and is exposed to the solution to be measured The specific sensitivity to hydrogen ions prevents interference from other ions that may be present in the solution It is essential to prevent grease fouling of this membrane The glass membrane produces an electrical potential proportional to hydrogen ion activity The other electrode called the reference electrode completes the circuit between the glass electrode and the solution The Isco pH probe combines both electrodes in a single housing and also contains an amplifier to reduce the extremely high impedance of the circuit This improves the reaction of the probe to stray capacitance and reduces interference caused by electrical noise in the vicinity pH measurement is affected significantly by temperature like any other chemical reaction Consequently temperature compen sation is provided in the flow meter The Isco pH probe has a built in temperature sensor that is exposed for faster response The pH probe connects to a Parameter Module that plugs into the Parameter Port on the flow meter The probe has a 25 ft 7 6 m cable For greater distances contact the factory The maximum distance between the module and the flow meter is 1 000 ft 804 8 m When the ion selective electrode and the reference electrode are connected to a high impedance voltmeter and submerged in
15. or other units of measure Programming the 4 20 mA Outputs M Note If you do not turn on the 4 20 mA output s in step 1 the menus determining its their operation will not even appear later in the program If you need this function and cannot find the appropriate menus in step 2 return to step 1 Setup and check to see that you have not inadvertently switched the option off If you turn on any of the 4 20 mA outputs ANALOG OUTPUTS in step 1 Setup programming the actual operation of the output appears in step 2 Select Flow Conversion For each 4 20 mA output port turned on the flow meter will request entry of the type of data that will drive the output along with minimum and maximum values Here is an example of what you might see for programming analog output 1 DATA TYPE FOR ANALOG OUTPUT 1 TEMPERATURE DISSOLVED OXYGEN CONDUCTIVITY SPECIFIC CONDUCTANCE SALINITY and TOTAL DIS SOLVED SOLIDS may also appear as driving conditions The actual choices available to you will depend on what ports you have turned on previously and what accessories YSI pH DO probes rain gauge etc you are using with your flow meter After you select one of the choices available to you the flow meter will request that you enter minimum and maximum values for that choice ANALOG OUTPUT PORT 1 4 MA X X units Note that 4 MA in the second line of the display could also be 0 MA if that is what you selected for the curren
16. sample records etc The flow meter lets you create two separate reports and lets you define what appears on them to a great extent Note that the con tents of the reports are defined in Setup in step 1 Step 9 merely lets you turn them off and on and set the timing You can define the start time the interval between reports and other aspects of the report History provides a record of changes made to the flow meter s program or operation events As many as 50 changes can be stored in the flow meter s memory at a time The memory can store up to 50 history items and 200 sample events at a time Following are the program screens as they appear on the display of a 4220 Flow Meter Explanations of most of the screens will be provided Some items that appear in the menus have parentheses around them This means that the item may or may not appear on your flow meter Choices made from the beginning of the program will make some options unavailable later An example of this is the pH D O option Selection of one in Step 1 will keep the other from appearing in all following menus This list does not include all possible screens for the unit but does cover the screens found in a typical programming sequence Some diagnostic and error screens are covered in Section 6 Turn on the machine Wait for the display to settle Then press the Enter Program Step Enter key The following will appear Step 1 If the following menu does not app
17. 0 ccc eee 6 6 6 4 Changing the Chart Paper 0 0 ccc cece eens 6 7 6 5 Changing the Ink Ribbon 0 ccc ete eens 6 9 6 6 Lifting the Flow Meter from the Case 0 0 cece eens 6 11 6 7 Location of the Three Fuses 0 cece eee n eens 6 12 6 8 Open the software update program 0 0 ccc eee 6 17 4220 Flow Meter Table of Contents List of Tables 1 1 Controls Indicators and Connectors seses c cece eee nes 1 6 1 2 Technical Specifications for the 4220 Flow Meter 020s eee 1 7 1 3 Technical Specifications for the 3222 Submerged Probe 1 8 1 4 4220 Chart Longevity s eocenie n Gocceeh aces tas eats sada Goes Gece OE 1 9 1 5 Battery Life Expectancy 0 0 0 0 cette eens 1 9 2 1 ASCII Output Codes seo cesce seare teon cette tenn eens 2 18 4 1 Locating the Head Measuring Point 0 0 0 cece eee ene 4 9 5 1 4 20 mA Output Interface Specifications 0 cee eee eee 5 5 5 2 Multiple Analog Output Board Specifications 0 0c ce eee eee 5 7 5 3 pH Probe Specifications 0 cece eens 5 20 5 4 D O Probe Specifications 0 ete eens 5 25 A 1 Replacement Parts List 0 0 0 eet een eens A 4 D0 Hazardous Gases sacs s ramener a acece aad acgcsbean oleae WOW wha aa SE anette D 6 4220 Flow Meter Table of Contents 1 1 Description 1 2 Compatible Equipment 4220 Flow Meter Section 1 In
18. 171 Scissors Assembl yn iss cial egal aa ds Bes ANA avai ee eel es BAT ears 60 3004 170 Extension 1 9 02 eiaei isco eicbsgedocs os cceved bac e E eanade dade vacsn lle auidaben Ste A E A E 60 3004 172 Extension 2 2065 we sctvissevecdureica a irii seven cabal eats e les detain E he dash coda wea esOee itt 60 3004 173 Extension 3g 350 suno nn aa sdecacoies Sunnis E S ETa ea T ae EAE otha ana EEPE oaei 60 3004 174 Extension A 41 5 oiire een e Aan a R E eae N EE A A S 60 3004 175 M Note Scissors Ring Assemblies will require a base and scissors sec tion for all sizes Sizes from 16 to 80 will also require two or more extension sections B 3 4220 Flow Meter Appendix B Accessories List B 4 C 1 Setup 4220 Flow Meter Appendix C Programming Worksheets 4220 Flow Meter Appendix C Programming Worksheets Use this form to make a hard copy of the program you use in your 4220 Most program steps can be completed in the shop without the flow meter being installed or at the job site However please note the following Year Month Day Hour Min Site I D Any three digit number Measurement Setup Level Reading Interval Minimum Do not attempt to fill out this sheet without first studying the manual especially Section 2 This section describes the program in detail and offers reasons you might choose one option over another This is particu larly so for those using the flow meter for the first time Keep
19. 3 Installing the External Desiccant Cartridge 0 0 00 gt 3 1 3 1 4 Opening the Case ersi ke oie ne eee See ees 3 3 4220 Flow Meter Table of Contents vi 3 2 3 3 3 4 3 5 3 6 3 7 Connection to a Power Source 0 cece eect cent n ene nenee 3 3 3 2 1 Low Power Indication 0 0 een ene 3 3 3 2 2 Isco Sampler sanay cst ea ed bo oe K a ee ee ee a ees 3 3 3 2 3 Isco Nickel Cadmium Battery 0 0 00 cece cent es 3 4 3 2 4 Attaching the Nickel Cadmium Battery 00 e runnen 3 4 3 2 5 Isco Lead Acid Battery 0 ccc cette eens 3 5 3 2 6 Attaching the Isco Lead Acid Battery 0 0 00 c eee eee 3 5 3 2 7 AC Power Supplies sse e iee aaae cent eee a aiaa 3 5 3 2 8 Attaching the Power Supply 0 0 c cece cence teen nee 3 6 3 2 9 External 12 Volt DC Power 0 eee 3 6 Flow Meter Mounting and Installation Procedures 20 20a 3 7 3 3 1 Carrying Handle i merei a er e ora eee nen 3 7 3 3 2 Location of the Flow Meter 0 0 0 0 nee 3 8 3 3 38 Mounting the 4220 0 0 eee teen n nee 3 8 3 3 4 Suspension Above the Flow Stream 0 0 00 e cee eee eee 3 8 Quick Disconnect Box ieee ara eee e eee ene AN 3 8 Extension Cables i035 Gos aas otata Goo ah acces Gog Oa Gehatd a Gee e Ea tke ee es 3 10 Safety Considerations 0 0 0 0 0c cette nen ees 3 10 Isco Sampler Interface 0 0 cc cette een ene 3 11 Secti
20. 4220 Flow Meter Appendix C Programming Worksheets C 7 Alarm Dialout Mode C 8 Printer C 9 Reports History C 6 13 Printer On off With Enable Yes No You must have a modem installed in the flow meter for any of these menus to appear 1 a Alarm Dialout Disable Conditional Storm Flowlink 2 Level Greater Than _ Feet 3 4 Rainfall Time Period 15 Min 30 Min 1 Hr 2 Hr 4 Hr 6 Rainfall Amount __ Inches other units Hr 8 Hr 12 Hr 24 Hr 48 Hr 72 Hr Time Since Last Rainfall Days allowable 1 7 Condition Level Flow Rate D O pH Temperature Rain fall YSI pH YSI DO YSI Conductivity YSI Temperature 7 Condition Greater Than Less Than Rate Of Change 8 Select Operator Done Or And 9 Alarm Dial out Numbers Done Num 1 Num 2 Num 3 10 11 12 13 14 15 16 Num 4 Num 5 First Phone Number Second Phone Number Third Phone Number Fourth Phone Number Fifth Phone Number Delay Between Dialouts Minutes Callback To Disable Alarm Yes No 1 Enter Printer Speed Off le hy 1 hr 2 hr 4 hr Hoe Do Input For Printer Line A None Level Flow Rate pH D O Temp YSI pH YSI D O YSI Cond YSI Temp Printer Line A Bottom Scale _ pH Printer Line A Full Scale _ Feet or meters Input For Printer Line B None Level Flow Rate pH D O Temp YSI pH YSI D O YSI Cond YSI Temp Input For Printer Line C None Level Flow
21. 5 31 5 or 41 5 respectively to the circumference of the ring Used alone the base section fits pipe that is approximately 16 to 18 in diameter The 9 0 the smallest extension exists so that in larger pipe sizes where large variations in circumference can occur you can use one or two of these extensions to take up or remove slack to bring the scissors mechanism into a position where it can be effectively tightened Mounting ring kits are available for different pipe sizes A kit is also available for partial pipe applications see your Isco Mounting Rings Installation and Operation Guide For a listing of part numbers and ordering information see Appendix B N CAUTION Do not overtighten the plastic cable ties they should be tight ened just enough to secure the cable in place without greatly indenting the cable Overtightening the plastic ties may col lapse the reference tube in the cable blocking it 4 7 4220 Flow Meter Section 4 Submerged Probe Installation Scissors Assembly Base Section Tightening the scissors assembly expands the ring to press firmly against the pipe wall securing the ring Figure 4 6 Universal Mounting Ring Adjustment 4 4 Other Mounting Techniques 4 4 1 Rectangular and Trapezoidal Channels Many installations require mounting methods other than mounting rings Some alternative mounting methods are described below Contact Teledyne Isco for assistance in deter mining your s
22. CALIBRATION D O STANDARD eABS BAROMETRIC PRESSURE e gt ALTITUDE is just off screen to the right Programming for YSI 600 D O is essentially the same as that described for the Isco D O sensor on the preceding section with the exception that you always place the sensor in a cup rather than wrap a moist cloth around it as is done for the Isco D O sensor If you select CONDUCTIVITY for the parameter to calibrate the following display will appear CONDUCTIVITY CALIBRATION UNITS e MS CM PPT MS CM is milli siemens per centimeter The siemen is the S I Syst me Internationale name for the unit of conductance which is also the reciprocal of the ohm The siemen was formerly called the mho ohm spelled backwards and that term may be more familiar to some PPT is parts per thousand Select the standard most suitable for your application CONDUCTIVITY STANDARD X XX MS CM Then PLACE PROBE IN X XX MS CM PRESS ENTER WHEN STABLE X XX MS CM Then CALIBRATING PLEASE WAIT If you select PPT for the conductivity standard CONDUCTIVITY STANDARD X XX PPT 2 39 4220 Flow Meter Section 2 Programming Then PLACE PROBE IN X XX PPT PRESS ENTER WHEN STABLE X XX MS CM Then CALIBRATING PLEASE WAIT There is no need to calibrate the YSI 600 temperature sensor as it is self calibrating 2 40 4220 Flow Meter Section 2 Programming SO
23. CONDI TIONAL VOLUME and FLOWLINK DISABLE will keep the sampler from receiving a flow pulse from the flow meter VOLUME allows the flow meter to signal the sampler whenever a specific flow volume has passed by Flowlink this option will only appear if you are using Flowlink software allows the sampler to be signalled from the flow meter as a result of condi tions determined by Flowlink Flowlink is Isco s proprietary data acquisition and management software Flowlink works with personal computers modems and laptop computers to monitor flow meters from a distance Consult the factory for more details about Flowlink VOLUME makes the flow meter pace the sampler after a spe cific volume passes through the stream CONDITIONAL allows pacing of the sampler by the flow meter when a particular condition has been met or has changed Among these conditions are changes in level flow rate temper ature rainfall if you are using the optional rain gauge sensor D O dissolved oxygen or pH You can also use a pair of condi tions or if you are using the YSI 600 sonde you can select mul tiple conditions from its sensors If you choose CONDITIONAL for sampler pacing and it doesn t seem to work properly for you read the section on hysteresis Then check the hysteresis setpoints for your conditions The defaults are all zero You must have the appropriate sensors attached to the flow meter to measure temperature D O pH conductiv
24. D O Probe to provide temperature compensation Wrap both the D O Probe and Temperature Probe in a damp cloth Wait ten minutes for it to stabilize then proceed Go to step 1 on the flow meter Select PROGRAM then step through the units of measure with Enter until you reach the menu for pH measurement Select NOT MEASURED Press Enter Then D O UNITS will appear Select either MG L or PPM Press Enter Exit the program and re enter going to step 3 Note that you must select measurement of D O in step 1 or the D O menu will not appear in step 3 If you cannot get the D O menu to appear in step 3 recheck your selections in step 1 Remember that you must select NOT MEASURED for pH in step 1 or D O will not appear on the menu for the rest of the program SELECT PARAMETER TO ADJUST NONE LEVEL D O Select D O Press Enter This display will appear D O CALIBRATION D O STANDARD ABS BAROMETRIC PRESSURE 5 12 Installation of Parameter Probes in Mounting Rings 5 13 The YSI 600 Multiple Parameter Sonde 4220 Flow Meter Section 5 Options and Accessories Altitude is just off the screen You can select D O STANDARD if this calibration medium is available to you Do not select ABS absolute BAROMETRIC PRESSURE unless you are at sea level or know how to correct for this value The barometric pressure provided from the Weather Bureau is corrected for altitude Select ALTITUDE ALTITUDE UNITS OF MEASU
25. FOR ALTITUDE ENTRY eFTeeMe Select the appropriate units and press Enter ALTITUDE ALTITUDE X XX FT or meters Enter the altitude for your location Then WRAP D O PROBE IN MOIST CLOTH PRESS ENTER WHEN STABLE X XXX MG L For more detailed information on the pH and D O probes see Section 5 Returning to step 3 Parameter to Adjust the following display will appear PARAMETER TO ADJUST e NONE LEVEL pH DO YSI 600 If Note _ _ _ ____ _____ If you are using the YSI Sonde and YSI 600 does not appear on your display return to step 1 Program and make sure you have selected YES from the YSI CONNECTED menu If you select YSI 600 the following will appear YSI 600 PARAMETER TO CALIBRATE e NONE pH e DO e e CONDUCTIVITY 4220 Flow Meter Section 2 Programming If you select pH for the parameter to calibrate the following display will appear YSI 600 pH CALIBRATION pH4 amp 7 pH7 amp 10 pH 4 7 amp 10 You can perform a two or three point calibration for pH with the YSI sonde The menus that follow are similar to those in the pre ceding section for the Isco pH sensor Select the calibration that best suits your stream s profile When you complete the pH cali bration successfully the following display will appear CALIBRATING PRESS ENTER TO CONTINUE Returning to the YSI menu if you select D O YSI 600 DISSOLVED OXYGEN
26. Flow Meter Section 1 Introduction e The capacity of the battery you are using e The average current draw of the flow meter or other device powered Battery capacity is expressed in ampere hours The battery manufacturer provides this information for each battery This value is the product of a load current times an arbitrary time period ten hours for nickel cadmium batteries and twenty hours for lead acid types The terminal voltage of the battery at the end of this time period is the discharged cell voltage 10 volts for nickel cadmium and 10 5 volts for lead acid types Note that bat teries are fully discharged well before the terminal voltage drops to zero volts Isco batteries are rated at 4 ampere hours for the nickel cadmium and 6 5 ampere hours for lead acid types Convert the battery current capacity into milliamperes and then divide this figure by the average current drawn by the unit This will give you a number in hours Divide that figure by 24 and you will have the number of days Note that the published ampere hour figures do not mean that you can expect to draw 4 amperes from the nickel cadmium battery or 6 5 amperes from the lead acid battery for one hour At the one hour rate discharges are typically less than half the ten or twenty hour rate To convert ampere hours to milliamperes multiply by 1 000 Examples 4 ampere hours x 1 000 4 000 mAh 6 5 ampere hours x 1 000 6 500 mAh If you divide this f
27. HMIS Hazardous Materials Identification System HMIS Rating Health 1 Flammability 0 Physical 0 The HMIS rating information is intended solely for the use of individuals trained in the use of the HMIS rating system The NPCA specifically recommends that prepares of MSDSs should not place HMIS PPE designation codes on the MSDSs or labels that leave the facility as it is not known the conditions under which the customer will use this product This MSDS was prepared by George E Mckedy Senior Applications Development Specialist Multisorb Technologies Inc This data and recommendations presented in this data sheet concerning the use of our product and the materials contained therein are believed to be correct but does not purport to be all inclusive and shall be used only as a guide However the customer should determine the suitability of such materials for his purpose before adopting them on a commercial scale Since the use of our products is beyond our control no guarantee expressed or implied is made and no responsibility assumed for the use of this material or the results to be obtained therefrom Information on this form is furnished for the purpose of compliance with Government Health and Safety Regulations and shall not be used for any other purposes Moreover the recommendations contained in this data sheet are not to be construed as a license to operate under or a recommendation to infringe any existing patents no
28. Min 5 Min Level Enable Alarm Hysteresis Feet Or Meters 9 Flow Rate Enable Alarm Hysteresis Units 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 Deg F C pH Enable Alarm Hysteresis pH units Temperature Enable Alarm Hysteresis D O Enable Alarm Hysteresis ppm YSI pH Enable Alarm Hysteresis pH units YSI D O Enable Alarm Hysteresis ppm mg L YSI Conductivity Enable Alarm Hysteresis mS cm YSI Temperature Enable Alarm Hysteresis Optional Outputs 4 20 Ma Output Serial Output Alarm Box Mechanical Totalizer Report Setup Report A Flow D O pH YSI 600 Sample History Flow Meter History Level In Report Yes No Flow Rate In Report Yes No Rainfall In Report Yes No pH or D O In Report Yes No Temperature In Report Yes No YSI 600 Data in Report Yes No Sample History In Report Yes No Flow Meter History In Report Yes No Report Setup Report B Flow D O pH YSI 600 Sample History Flow Meter History Level In Report Yes No Flow Rate In Report Yes No Rainfall In Report Yes No pH or D O In Report Yes No Temperature In Report Yes No YSI 600 Data in Report Yes No Sample History In Report Yes No Setup Options Status Report Setup LCD Backlight LCD Backlight Mode Time out Continuous Off Language English French German Spanish Program Lock
29. SELECT MANNING TYPE e ROUND PIPE e e U CHANNEL RECTANGULAR e T TRAPEZOIDAL is also available if you move to the right with the right arrow key 2 31 4220 Flow Meter Section 2 Programming 2 32 If you select ROUND PIPE for the Manning flow conversion the following displays will appear MANNING ROUND PIPE SLOPE X XXXXX ROUGH X XXXX Slope is entered as a dimensionless quantity delta Y delta X not as percent slope Or as otherwise expressed AX E Rise AY 7 Run For 1 example 100 01 Roughness coefficients are published in the Isco Open Channel Flow Measurement Handbook You must know the material the pipe is made of The roughness coefficients are published for all common materials in three grades minimum normal and maximum Then MANNING ROUND PIPE DIAMETER X XXX FEET or meters If you select U CHANNEL for the Manning flow conversion the following displays will appear MANNING U CHANNEL SLOPE X XXXXX ROUGH X XXX Slope and roughness are entered as for ROUND PIPE previ ously Then MANNING U CHANNEL WIDTH X XXX FEET or meters If you select RECTANGULAR for the Manning flow conversion the following displays will appear MANNING RECTANGULAR SLOPE X XXXXX ROUGH X XXX Slope and roughness are entered the same as for ROUND PIPE previously Then MANNING RECTANGULAR WIDTH X XXX FEET or meters 4220 Flow Meter Sec
30. alarm If you want either of two conditions to trigger an alarm select OR If you want both of two conditions to be met before signalling an alarm select AND Selection of DONE will advance you to the next display menu Selection of OR or AND will return you to the CONDITION menu to select the other condition The flow meter will then request that you enter the telephone numbers for the remote alarms There are five possible telephone numbers in decreasing order of importance You can enter as many as eighteen digits for each phone so the remote targets need not necessarily be local ALARM DIALOUT NUMBERS e DONE NUM 1 NUM 2 NUM 3 e NUM 4 NUM 5 If you select DONE the flow meter will advance to the next step If you select one of the NUM entries such as NUM 1 the fol lowing will appear FIRST PHONE NUMBER XXXXXXXXXXXXXXXXXX You can enter the phone numbers as straight seven or ten digit numbers or you can use the key to enter a dash You can use the decimal key to enter a comma If you want to signal more than one remote number at a time the numbers are 2 49 4220 Flow Meter Section 2 Programming 2 4 10 Step 8 Printer 2 50 arranged in decreasing priority NUM 1 carries the highest pri ority followed by NUM 2 and so on After you have entered the numbers the flow meter will request DELAY BETWEEN DIALOUTS XX MINUTES This is the time
31. as well as other Isco probes such as the submerged probe and area velocity probe require complete con tinuous submersion in the flow stream for proper operation Dry operation can damage the pH and D O probes The YSI Sonde only may be suspended vertically in the stream Teledyne Isco offers a series of rings that provide mounting for the probes in round pipes e Each probe snap mounts to a specialized sensor carrier e The sensor carrier then attaches to the rings or mounting straps 5 13 4220 Flow Meter Section 5 Options and Accessories e The probe cable is carefully routed out of the stream e Only the temperature probe can connect directly to the flow meter s parameter probe connector e The pH and D O probes both connect to parameter modules amplifiers The pH probe connects to the 201 pH Module and the D O probe connects to the 270 D O Module The modules are not interchangeable M Note The 270 D O module has been discontinued Probes service kits and accessories are still available to maintain existing field units M Note Isco flow meters are built with one parameter sensing port and can only sense temperature plus one parameter at a time unless you use the YSI Sonde You must select temperature D O with temperature or pH with temperature If you want to change probes later you can but you will need to reprogram the flow meter Note that selection of either pH or D O in step 1 where units of
32. at that temperature is 10 The dissociation constant is a number indicating the degree of ionic dissociation for a substance after it is dissolved in water Dissociation constants vary widely for substances depending on the nature of the substance s chemical bonds Ionic salts tend to have higher constants Each number on the pH scale between 7 and 0 equals a tenfold increase in H ion Each number between 7 and 14 equals a tenfold decrease of H ion pH measurements of wastewater are commonly made to monitor the effect of treatment chemicals added to raise or lower the pH Water that has been used for various industrial processes may deviate substantially from 7 Chemicals are often added to the water to bring the pH close to that of neutral water which is 7 For example if the effluent has a concentration of heavy metal ions they must be removed before discharge Raising the pH of solutions containing transition metal ions will cause them to pre cipitate where they can easily be removed as sludge The resultant solution will be high in pH and will require acid to neu tralize it 5 15 4220 Flow Meter Section 5 Options and Accessories Figure 5 7 pH Probe with protective cap 5 16 The pH probe is a combination of two electrochemical half cells Together they provide a low voltage signal that corresponds to the hydrogen ion concentration of a solution If you look at the pH probe you will see a glass bulb on one end
33. charge A battery that is fully charged and then placed in storage will lose some capacity each day In a week this could easily be 5 or more When using lead acid batteries you must be careful to avoid complete discharge as this may cause cell reversal which will ruin the battery Also complete discharge in low temperature ambients may cause the battery to freeze which can deform the plates or even crack the case Always operate these batteries with a reserve factor Calculating current draw for a 4220 Flow Meter is somewhat more difficult than calculating the battery capacity You cannot simply measure the idle current of the unit unless the printer and report generator are turned off in the program These functions require power periodically but not all the time If the figures given in the previous table are not satisfactory for your application you can use the following procedure shown in Figure 1 3 to measure the actual current draw Do not attempt this procedure unless you have the proper equipment available and know how to make electrical mea surements To measure current for a varying load requires a more sophisti cated type of multimeter one that is capable of averaging high and low readings over a period of time You should set the meter on MIN MAX and let it run with your program for several hours or more Other manufacturers meters are also acceptable but only if they are capable of averaging current draw For a
34. damage the internal plotter Water or dirt drawn into the reference port can block the tub ing preventing the pressure transducer from referencing to atmospheric pressure Many flow meters are installed in damp environments where the air often carries corrosive fumes Moisture combined with these fumes can form acids These acids can corrode printed circuit boards resulting in unreliable operation and eventual failure of the unit If the damage is extensive it can completely ruin the flow meter Keep the lid closed and latched except when you are installing the unit or changing the program Symptoms of a clogged reference port on the submerged probe are varied Noticeable drift in measured level when you know the level is essentially constant or an oscillation in the level corre sponding to changes in barometric pressure are two indicators of clogging in the reference port tube If dirt and or moisture block the reference tube between the des iccant cartridge and the Submerged Probe connector on the flow meter you may be able to clear the blockage from the tube by applying compressed air Likewise if the blockage is inside an extension cable for the submerged probe you can try to clear it with air In these cases both ends of the tube are accessible However if the blockage is inside the submerged probe s cable the probe will have to be returned to the factory for evaluation In some cases Teledyne Isco s service department ca
35. going there a person may experience a little shortness of breath following exercise People in good health are not afraid to drive over the high passes in the Rocky Mountains At Loveland Pass oxygen pressure is 13 2 of a normal atmosphere At the top of Mt Whitney oxygen is equal to 12 2 t Many hikers go there and to higher peaks as well After adequate acclimation they may climb to the top of Mt Everest where oxygen is equal to only 6 7 The lowest oxygen concentrations that I have observed in a sewer atmosphere was 13 percent It was in a sealed chamber near sea level upstream from an inverted siphon on a metro politan trunk A man would be foolish to enter the chamber Without ventilation he might die but not from lack of oxygen 4220 Flow Meter Appendix D General Safety Procedures It seems unlikely that anyone has ever died in a sewer from suf focation that is a lack of oxygen Deaths have often been attributed to asphyxiation This is a word which according to the dictionary is used to mean death from an atmosphere that does not support life The word has sometimes been misinter preted as meaning suffocation which is only one kind of asphyxi ation In nearly all cases of death in sewers the real killer is hydrogen sulfide It is important that this fact be recognized Many cities diligently test for explosive gases which is very important and they may measure the oxygen concentration which
36. humid environment when not in use and between measurements The plastic bottle that was placed over the end of the sensor when it was shipped is ideal for this purpose Place a piece of moist tissue inside the bottle and slide the bottle over the probe Isco supplies a 2 mil 002 thick membrane for use with the D O probe This membrane is recommended for long term moni toring situations only typical of our users applications Use only this thickness membrane with D O probes connected to Isco flow meters Do not use other thickness of membranes as the 270 D O module no longer sold used with the probe is calibrated only for the 2 mil membrane and cannot be recalibrated in the field Do not use other membrane thicknesses or inaccuracy will result Besides the thinner membranes are very fragile and difficult to install 4220 Flow Meter Section 5 Options and Accessories 5 11 4 Probe Installation The D O probe attaches to a sensor carrier bracket that snaps into an Isco mounting ring Use the specific size mounting ring for pipes less than 15 in diameter and the universal mounting ring for pipe sizes greater than 15 diameter Refer to the instruction sheet supplied with the mounting ring M Note When installing the D O probe and its sensor carrier bracket make sure the mounting slots on the sensor carrier are com pletely pressed into the mating tabs on the ring The probe relies on a full engagement between tabs and slots fo
37. indicators and connectors of the 4220 Flow Meter are listed in Table 1 1 and their functions are briefly described Refer to Figure 1 2 for a view of the connectors and their pin functions oem wiyh A Channel 1 Red B Channel 3 Green C Channel 1 White D Channel 2 Brown E Channel 3 Black F Channel 2 Blue Modem or Analog Output lt Parameter m Submerged Probe Figure 1 2 4220 Side View Showing Connectors and Pin Functions 4220 Flow Meter Section 1 Introduction Pin Function A B oaw gt AMA YS mmga O w mMmoOaAwm gt OAAMOOnS Ground 12V 12V Ground Flow Pulse Output Bottle Number Input Event Mark Input Inhibit Enable Output 12V Ground SDO Rain Gauge Input 12V Ground Sense Line SDO SDI Analog Output Pulse Tip Ring 12V Ground Input Signal Temp Temp Switched 12V Input Signal 12V Ground Level Level Ground 1 5 4220 Flow Meter Section 1 Introduction Table 1 1 Controls Indicators and Connectors Controls Settings Function ON OFF On Off Turns the flow meter on and off Internal memory is protected with a standby battery See Section 2 Keypad Momentary 24 key four column matrix Programs flow meter through a series of Switches keystrokes prompted by messages on the display Certain keys per form specific functions printing reports or entering program choices into me
38. industrial and wastewater effluents lakes rivers wet lands estuaries coastal waters and monitoring wells It can be left unattended for weeks at a time with measurement param eters sampled at your selected interval and data transmitted to the flow meter You can use the YSI 600 as deep as 200 feet below the surface or in as little as a few inches of water The fast sensor response of the YSI 600 makes it ideal for vertical profiling Its small size means it can fit inside two inch diameter monitoring wells A Rapid Pulse Dissolved Oxygen Sensor eliminates the need for stirring providing accurate results without an expensive and bulky stirrer Because no stirring is required no supplemental power supply or battery is needed and sensor drift caused by passive fouling is minimized The YSI 600 communicates with any 4200 Series flow meter equipped with suitable hardware and software Data can be exported through Flowlink software for further processing The YSI 600 connects to a modified 9 pin Rain Gauge Terminal on any 4200 Series Flow Meter Operation of the Rain Gauge with YSI 600 is still possible with a special Y connect cable Mod ification of older 4200 Series Flow Meters is possible with changes in connectors and boards For additional information contact Teledyne Isco The YSI 600 is available with a cable 25 feet long to connect to the flow meter The cables are waterproof at the sonde and can be used in lab or field I
39. installed and used properly in strict accordance with the manufacturer s directions may cause interference with radio and television reception There is no guarantee that interference will not occur in a particular installation If this equipment does cause inter ference to radio or television reception which can be determined by turning equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient the receiving antenna on the televi sion e Relocate the unit with respect to the receiver e Plug the unit into a different outlet so the unit and receiver are on different branch circuits e If necessary consult the manufacturer or an experienced radio television technician for additional suggestions You may find the following booklet prepared by the FCC helpful How to Identify and Resolve Radio TV Interference Problems This book is available from the U S Government Printing Office Washington D C 20402 Stock No 004 00 00345 4 5 3 4220 Flow Meter Section 5 Options and Accessories 5 2 Connection to Teledyne Isco offers two serial outputs from 4200 series flow External Serial Device meters There is a software enabled output that is transmitted on the RAIN GAUGE connector This signal also appears on the INTERROGATOR connector This feature lets the flow meter transmit the most recent values for all currently enabled ports as ASCII text You can se
40. installed in several primary devices Certain flume manufacturers produce flumes with built in cav ities for Isco s submerged probe Contact the flume manufacturer for details on the special flumes M Note Always install the submerged probe pointing toward normal flow at the head measuring point of the device The location of the measuring point varies with each device Refer to Table 4 1 or to the Isco Open Channel Flow Measurement Handbook Table 4 1 Locating the Head Measuring Point Device Head Measuring Point Weirs Upstream from the weir plate by at least 3 times the maximum head Parshall Flumes 7 3 of the way into the converging section Palmer Bowlus Upstream from the flume entrance by half the pipe Flumes diameter M Note When installing the probe with custom hardware remember to attach the probe securely to the side or bottom of the flow stream and tie the cable down so that it does not collect debris For many primary measuring device installations the sub merged probe mounting rings or base sections discussed previ ously may be used to mount the probe at the appropriate location In many installations though the mounting rings or bases may not be suitable 4 9 4220 Flow Meter Section 4 Submerged Probe Installation Round Pipe Sensor Mounting Plate Round Pipe Probe installed from above outside of manhole by using Street Level Installation System Str
41. level sensing and can only be used with one flow meter of the series This section covers the accessories that are usable with any 4200 Series Flow Meter Application specific options are covered in the Installation sections of each type of flow meter Teledyne Isco offers the following options for use with all 4200 series flow meters e 4200T Modems e 4 20 mA Outputs Internal and External e Model 674 Tipping Bucket Rain Gauge e Flowlink Software used with the modem or a laptop computer e Parameter Probes Temperature pH acidity alkalinity and D O dissolved oxygen e Mechanical Totalizer e High Low Alarm Relay Box e YSI 600 Multi Parameter Sonde The 4 20 mA Output Interface alarm box rain gauge and parameter probes are options you can field install any time The modems require factory modification to the flow meter and you should specify these options when you order If you want to add any of these later you will need to return the flow meter to the factory The 4200T Modem is a circuit board installed inside the flow meter that transmits flow meter data over standard telephone lines The modem also makes it possible for the flow meter to receive data from compatible equipment at the other end of the phone line Modems allow digital equipment to talk and listen to other remotely located digital equipment over telephone lines The analog phone system cannot transmit digital signals through repeaters digital machi
42. measure are defined will lock out any men tion of the other in the menus for the rest of the program The Parameter Modules themselves plug into the Parameter Probe connector on the flow meter CAUTION The pH and D O probes require continuous submersion after installation or they will lose sensitivity Prolonged dehydra tion of the sensor bulb may damage or even ruin the pH probe 5 9 The Temperature The temperature probe is the simplest of the three consisting of Probe a thermistor inside a metal housing The thermistor changes resistance with an increase or decrease in temperature The flow meter converts this resistance change to a temperature reading and displays it in degrees Celsius or Fahrenheit as chosen by menu selection 5 14 Figure 5 6 Temperature Probe 5 10 The pH Probe 4220 Flow Meter Section 5 Options and Accessories The pH probe measures the acidity or alkalinity of an aqueous solution by determining the relative quantity of dissociated hydrogen ions H actually H30 in the solution A larger quantity of H ions indicates acidity while a smaller quantity of H ions indicates alkalinity The H in pH stands for Hydrogen and the p stands for power The normal scale for pH runs from 0 to 14 with 0 being most acidic and 14 being most alkaline Distilled water at 25 C is neutral at 7 based on the fact that the dissociation constant number of H and OH hydroxyl ions present for pure water
43. more representative test the sensor should be attached and sub merged in water You should run the test for at least eight hours longer if necessary or until the flow meter has exercised the entire program The longer you run the test the more accurate the average will be 4220 Flow Meter Section 1 Introduction Fluke 87 or other current averaging meter FLUKE 87 TRUE RMS MULTIMETER 00l5 D a Flow 0 oD o Meter Connect Cable 60 1394 023 or you can make your own Battery 12 Volt C clip A good quality adjustable regulated DC power supply can be substituted for the 12 volt battery The power supply should have at least 3 Amperes output prefer ably more and capable of overcurrent surges Figure 1 3 Measuring the Flow Meter Current Additional information about batteries used to power Isco equipment is available from the Isco Power Products Guide which is shipped with this manual and any flow meter order 4220 Flow Meter Section 2 Programming 2 1 Getting Started 2 1 1 Operation of the Display You must program the 4220 Flow Meter to accurately monitor a flow stream You must also install the submerged probe level sensor The 4220 will usually also need a primary measuring device a structure placed across a stream that regulates flow This section describes programming the flow meter with the aid of the
44. of them are known to be unre liable and we know of none that have proved dependable Do not use one unless you check it at frequent intervals against air con taining known H S concentrations A supposed safety device that is unreliable is worse than none at all Remember that the nose fails too when it comes to sensing dan gerous concentrations of HoS Various other toxic gases have been mentioned in some publica tions It is unlikely that any person has been asphyxiated in a sewer by any of those other gases except possibly chlorine The vapor of gasoline and other hydrocarbons is sometimes present in amounts that could cause discomfort and illness but under that condition the explosion hazard would be far more serious The explosimeter tests as well as the sense of smell would warn of the danger Pipelines in chemical plants might contain any D 5 4220 Flow Meter Appendix D General Safety Procedures number of harmful vapors They too are sensed by smell and explosimeter tests if they get into the public sewer Such occur rences are rare The attempt to instill a sense of urgency about real hazards is diluted if a man is told to give attention to a long list of things that in fact are irrelevant Be very careful to avoid high H S concentrations flammable atmospheres and hazards of physical injuries Remember that much H S may be released by the stirring up of sludge in the bottom of a structure Obey you
45. operate control relays to signal alarms when flow rate rises above or falls below a certain set value You can set both the high and low alarm values from 1 to 99 of the controlling condition See Section 5 for more information about the alarm box 4220 Flow Meter Section 2 Programming If you select any of these outputs the flow meter will request that you turn them on or off If you are running on battery and do not intend to use either of these options select OFF Otherwise select ON After the OPTIONAL OUTPUTS menus have been set press Enter The display will return to the SETUP menu This time select REPORT SETUP with the arrow key Press Enter REPORT SETUP e REPORT A e REPORT Be This step lets you determine the contents of the reports gen erated by the flow meter The flow meter s report generator is capable of creating two different reports A and B that can be identical or quite different The reason for two reports is to allow the summary of flow meter recording over different time periods For example you might generate report A weekly and report B monthly At this point we are only interested in selecting the items the flow meter will include in each report Press Enter and the following will appear REPORT SETUP e FLOW e DO PH e YSI 600 e SAMPLE HISTORY e FLOW METER HISTORY is just off the screen to the right If you select FLOW and press Enter the following will appear LEVEL IN REPORT e YES
46. references the pressure transducer to atmospheric pressure This allows a true differential pressure measurement unaffected by changes in barometric pressure This tube is vented through the connector into the cabinet of the 4220 Flow Meter From there it is vented to the atmosphere through a desiccant cartridge mounted on the side of either the flow meter or the Quick Disconnect Box In field installations of 4220 Flow Meters and associated equipment the safety of the personnel involved should be the foremost consideration No project is so important or deadline so critical as to justify the risk of human life We urge you to read the safety procedures provided in Appendix D 3 7 Isco Sampler Interface 4220 Flow Meter Section 3 Flow Meter Installation WARNING The 4220 Flow Meter has not been approved for use in hazardous locations as such locations are defined by the National Electrical Code Before any flow meter is installed the proper safety precautions must be taken The discussions of safety procedures are only general guidelines Each situation in which you install a flow meter varies You must take into account the individual circum stances you are in Additional safety considerations other than those discussed may be required One of the uses of the 4220 Flow Meter is to control a sampler in a flow paced sampling mode Flow paced sampling means that the flow meter is programmed to signal the sampler to take
47. sa olution ions move to the surface of the membrane The electrical charge on the ions creates a potential difference across the barrier between the solution and the membrane This potential or voltage difference is proportional to the activity of the ions in the solution The potential when read by a sensitive voltmeter translates into a reading of pH With an Isco flow meter the voltage is sent first to a preamplifier inside the probe to reduce the impedance of the circuit and improve the signal to noise ratio and then on to the 5 10 1 pH Probe Calibration 4220 Flow Meter Section 5 Options and Accessories parameter module to allow greater operating distance from the flow meter The flow meter determines the pH value and displays it The 4220 provides a two or three point calibration for the pH probes with commercially prepared calibrated buffer solutions Calibrations of 4 and 7 7 and 10 and 4 7 and 10 are all pos sible For accurate readings you must clean and re calibrate the probe on a regular basis How often you need to do this depends on the condition of your flow stream Flow streams with a high grease content will coat the sensing surfaces of the probe quickly clogging them and slowing the response time or stopping it alto gether Installation in very greasy flow streams is not recom mended M Note For pH probe calibration Teledyne Isco recommends that you use a glass container for the buffer solutions to e
48. shafts 8 Replace the two spools on their respective shafts pushing the detector levers out of the way so the spools will easily re engage their gears 9 Gently rotate each spool to tighten the ink ribbon Rein stall the paper take up roll if necessary 6 4 3 Do Not Disassemble or You do not need to oil the printer mechanism As long as you Lubricate the Printer keep the lid closed keep the inside of the cabinet clean and do not abuse the printer in any way it should function normally Teledyne Isco recommends you make no attempt to oil or disas semble the mechanism if it malfunctions Oil attracts dirt some oils can become gummy over time and may cause parts to bind or stick Do not attempt to disassemble the printer mechanism as you may bend or distort the frame or com ponent parts This will certainly cause malfunction Do not force any part of the mechanism with tools or probes If you disassemble the flow meter do not lift the chassis from the case by holding on to any part of the printer The internal printer contains no user serviceable parts other than the paper and the ribbon If the printer needs service Teledyne Isco recommends you return the flow meter to the factory 6 5 Servicing And The remainder of this section provides servicing information and Troubleshooting a general troubleshooting guide This information will help you decide whether to attempt to repair the flow meter yourself or return it to the factory
49. stainless steel epoxy polyetherimide and the polyurethane cable covering e For correct probe operation the gold cathode must always be bright If it is tarnished which can result from contact with certain gases or plated with silver which can result from extended use with a loose or wrinkled membrane you need to restore its surface You can return it to Isco or clean it yourself with a probe reconditioning kit This kit is available from Isco Never use chemicals or any abrasive not supplied with this kit It is also possible for the silver anode to become contaminated which will prevent successful calibration Try soaking the probe overnight in a 3 ammonia 5 24 4220 Flow Meter Section 5 Options and Accessories solution then rinse with deionized water recharge with electrolyte and install a new membrane If you are still unable to recalibrate the probe after several hours return the probe to Isco for service If the sensor O ring is worn or loose you should replace it The probe comes with a kit of O rings and replacement membranes Additional replacement O rings are available from Isco in an O ring replacement pack If the probe is not going to be in constant use you should store it in the plastic bottle provided in shipping To keep the electrolyte from drying out place a small piece of moist towel or sponge in the bottle and insert the probe into the open end If you need service for your D O probe Isco reco
50. the appropriate ASCII output string You can send the DATA command as often as you want Type Q to leave the command response interface In addition to the port values the data includes the flow meter s current time the bottle number and time stamp of the three most recent sample events the previous day s rainfall total mid night to midnight the current day s rainfall total since mid night and a rainfall tips counter that rolls over every 255 tips See Rain Gauge The port values appear in a comma sepa rated values format Each data field is preceded by a two or three character type identifier The table lists the type identi fiers Note that the flow meter s current time and the sample event time stamp appear as a number in standard spreadsheet format days since 1900 The supported baud rates are 9600 4800 2400 and 1200 no parity eight bits and one stop bit Periodic Output Use a special RAIN GAUGE connector cable contact the factory for assistance Note that the periodic output will terminate during phone connection and when the interro gator cable is connected 2 19 4220 Flow Meter Section 2 Programming 2 20 M Note It is important to use CHECKSUM if you plan to use internal modems or the interrogator The UART is shared with these devices If you select SERIAL OUTPUT from the OPTIONAL OUTPUTS menu the following display will appear PERIODIC SERIAL OUTPUT ON OFF
51. the design of the equipment specified above conforms to the above Directive s and Standards as of January 1 1997 ae William Foster USA Representative a TELEDYNE ISCO A Teledyne Technologies Company William Foster Director of Engineering Teledyne Isco Inc 4700 Superior Street Lincoln Nebraska 68504 Phone 402 464 0231 Fax 402 464 4543 60 3222 027 Rev B DECLARATION OF CONFORMITY ISM1 A Application of Council Directive 89 336 EEC The EMC Directive 73 23 EEC The Low Voltage Directive Manufacturer s Name Teledyne Isco Inc Manufacturer s Address 4700 Superior Lincoln Nebraska 68504 USA Mailing Address P O Box 82531 Lincoln NE 68501 Equipment Type Environment Laboratory Equipment for Light Industrial Commercial Environments Trade Name Model No 4200T Modem Year of Issue 2001 Standards to which Conformity is Declared EN 55024 1998 EMC Requirements for Information Technology Equipment EN 60950 Safety Requirements for Information Technology Equipment FCC Part 68 Standard Description Severity Applied Performance Criteria EN61000 4 2 Electrostatic Discharge Level 2 4kV contact discharge B Level 3 8kV air discharge B EN61000 4 3 Radiated RF Immunity 80 MHz to 1000MHz 80 AM at 1kHz A Level 1 10V m EN61000 4 4 Electrical Fast Transient Level 2 2kV on ac lines EN61000 4 5 Surge on AC Lines 2kV common mode 1kV differential mode EN61000 4 6 Co
52. to 0 32 2 rapidly fatal Carbon CS3 Nearly odorless 2 64 Very poison 15 1 3 44 0 At bottom Aninsecti Combustible Bisulfide when pure color ous cide gas indicator less anesthetic irritating vom Poisonous iting convulsions psychic distur bance D 6 Table D 1 Hazardous Gases Continued 4220 Flow Meter Appendix D General Safety Procedures Specific Explosive Likely i Gravity 3 max WEY EELS Range by Location Most Simpiesnand Chemical Common Physiological Safe 60 8 Hour Per Cheapest Formula Properties onyapor Effect Min Exposure Exposure volam alr Gu common Safe Method Density ppm ppm Limits Highest Sources of Testing Air 1 lower upper Concentration Carbon Asphyxiant Col 1 53 Cannot be 40 000 5 000 At bottom Products Oxygen Dioxide orless odorless endured at 10 to when heated of com deficiency When breathed more than a 60 000 may stratify bustion indicator in large quanti few minutes at points sewer gas ties may cause even if subject above bottom sludge acid taste is at rest and Also issues Non flammable oxygen content from car Not generally is normal Acts bona present in dan on respiratory ceous gerous amounts nerves strata unless an oxygen deficiency exists Carbon co Chemical 0 97 Combines with 400 50 12 5 74 0 Near top espe Manufac CO ampoules Monox asphyxiant Col hemoglobin of cially if present tured
53. useful for those who need both a weekly and a monthly summary of activity on the flow meter If you select OFF for this step the program will advance to the next step and there will be no report B generated If you select YES the following will appear REPORT B DURATION TO BE IN e HOURS DAYS MONTHS Select the appropriate interval for this second report After you select the units of time the following will appear ENTER REPORT B DURATION XX HOURS DAYS or MONTHS could also appear depending on what you selected for the previous step The time selected becomes the time interval that will be covered in the report Then the flow meter will ask you when you want the first report printed PRINT REPORT A AT YR XXXX MONTH XX DAY XX HR XX MIN XX After you have entered the desired date for the first report the program will advance to the following PRINT FLOW METER HISTORY e YES NO The final step on the flow meter is HISTORY This step presents a record of the programming activity on the flow meter that you can have printed on the printer The flow meter keeps a record of certain programming changes and prints them out If you select YES the following will appear PRINT FLOW METER HISTORY e PRINT SINCE LAST PRINT ALL If you select PRINT SINCE LAST the flow meter will only print the changes that have occurred since the last print request If there were no changes the
54. usually is unimportant but they rarely measure H S Death has occurred where it is unlikely that there was any measurable reduction in the oxygen concentration Waste water containing 2 mg per liter of dissolved sulfide and at a pH of 7 0 can produce in a chamber with high turbulence a concentration of 300 PPM H S in the air This is considered to be a lethal concentration Many people have died from H3S not only in sewers and industries but also from swamps and from hot springs In one resort area at least five persons died from HS poisoning before the people were ready to admit that HS is not a therapeutic agent Hardly a year passes in the U S without a sewer fatality from H S as well as deaths elsewhere in the world The presence of H S in a sewer atmosphere is easily deter mined A bellows and ampoule type of tester is very satisfactory for the purpose even though it is only crudely quantitative When using a tester of this type do not bring the air to the ampoule by way of a tube as this may change the H S concen tration Hang the ampoule in the air to be tested with a suction tube to the bulb or bellows Lead acetate paper is very useful as a qualitative indicator It cannot be used to estimate the amount of sulfide but it will quickly turn black in an atmosphere containing only a tenth of a lethal concentration Electrodes or other similar electrical indicating devices for HS in air have been marketed Some
55. wall The measured level upstream behind the wall is used to calculate the flow rate Flumes differ from weirs in that there is no wall or barrier but instead a restriction typically a sharp narrowing or change in the slope of the channel that restricts the flow Again the measured level of the stream at some point ahead of the restriction is used by the flow meter to calculate flow In this flow conversion mode the flow meter uses internal look up tables for many common primary measuring devices 2 3 3 Step 3 Adjust Level Parameters 4220 Flow Meter Section 2 Programming An Equation is used when you have a non standard primary device or want to use different values from those programmed into the look up tables of the flow meter Equation uses the standard flow equation Q k1H 4 k2HP Where Q equals flow rate k1 and k2 are constants H is level or head and P1 and P2 are the powers to which the two H terms are raised Your equation may not have the second term in which case you would enter 0 for the second constant k2 Most common primary devices are supported in the flow meter s software so generally you will not need this option But it is available for those needing to enter their own values or for those who have a nonstandard primary device for which an equation can correlate level and flow MANNING Flow Conversion uses the Manning formula to cal culate flow in open or closed non pressurized gravity flow situa
56. wide pink band appears on the left side of the chart To remove the used roll 1 Locate the handle on the left side of the take up roll 2 Pull straight out on this handle until the take up roll slips off the printer 3 Remove the paper roll from the take up spool by holding the handle in one hand with your thumb pressed against one of the slots in the white end cap 4 Snap the white end cap free from the two black catches on the end of the spool 5 Pull the paper roll off the spool with your other hand 6 7 4220 Flow Meter Section 6 Maintenance and Service 6 8 Remove the feed spool by pulling on the handle extending from the right side of the printer Snap off the other white end cap as described previously Save the white end caps you will reuse them Remove the empty roll from the spool by holding the han dle in one hand and pulling the roll from the spool with the other To install the new chart paper After you remove the empty roll 1 10 11 12 13 14 15 Slide the new roll onto the feed spool so it unrolls from the back side facing away from you Line up the slots in the cardboard tube with the raised guides on the spool Reattach the white end cap by wedging the two catches on the end of the spool into the two slots on the white end cap Peel the paper back gently so it will unroll freely Using the knife or scissors cut off the end of the roll if it i
57. 0 50 mA not supported by the flow meter Teledyne Isco offers two different arrangements for the 4 20 mA control circuit You can have either or both with the same flow meter One arrangement requires the use of an external accessory the 4 20 mA Output Interface see Section 5 This module connects to the flow meter and a source of AC power and contains the circuitry necessary to create the 4 20 mA current loop This accessory connects to the flow meter through the Interrogator connector The other 4 20 mA option is a board installed inside the flow meter that contains circuitry for up to three separate isolated 4 20 mA current loops This option can also be ordered with one 2 15 4220 Flow Meter Section 2 Programming 2 16 or two current loops supplied If you use both the external con verter and the internal board you can have a total of four current loops controlled by the same flow meter The internal current loops are brought out to a 6 pin M S connector in the slot where the Modem connector is usually mounted To activate the internal analog output s return to the main screen and press 4 2 0 ANALOG CAPABLE 0 TO DISABLE OUTPUTS 38 EXIT PROGRAM WHEN DONE Additional information for the internal analog output board including specifications for the loops is found in Section 5 3 2 N CAUTION Each 4 20 mA output represents a constant draw on the flow meter of at least 16 mA whether act
58. 1001 01 Amp Dust Cover 9760 16 82 202 1000 14 O Ring 014 84 209 0166 65 Elbow Nylon 16 NPT to 14 ID 111 239 0416 32 Sheet Edge Fastener 6 32 113 231 0197 04 Scr SS SST PH P 10 32 x T4 115 60 1704 017 Carrying Handle Assembly 116 099 0012 00 Dri Can Desiccant Canister Not Shown A 5 4220 Flow Meter Appendix A Replacement Parts A 6 4220 Flow Meter Appendix B Accessories List 4220 Flow Meter Basic Unit 68 4220 001 Submerged Probe 10 range with 25 foot cable cccccccccsssssecesssscecceseseeceecesesseaeeeseseeaeeeees 60 3224 002 4220 Flow Meter viii ie asei scetensas e cease a e nad boven ath a eA a eet aaaea asad etea Gese ves 60 3224 049 Accessory Package Includes Desiccant Can and Canister Chart Paper Roll and Printer Ribbon 00000064 60 3224 051 Instruction Mantialicia isco a E O NEEE E Ea oor Sew ESRA en eee 60 3224 052 Pock eb Guides deh nia E Ses bad aaetecetlad abate Sa vallane sheesbenie Mabeca nus tones caviad Seven AN a e 60 3233 103 CAUTION VA soi A EIA ona E eek ca idee Roane dace halen ads Bes acute bets culate E E E A EAEE 60 3003 256 Dri Can Desiccant v 53 ak aviation aE aa haan Rate eee i E E OE Ea a 099 0012 00 Flow Data Hand book vvics 2 ccsiiseesecavasteveatansaveeteeies seanacs ria E AE EE OE RARER 60 3003 041 4220 Accessories Standard Nose Sections iene Tea E senate boots as kegs es EEEa PEE AORA ARTEA 60 2503 086 Slanted Nose Section eciis cess des
59. 2 1 Attaching the Nose After cleaning reinstall the nose section and tighten the screws Section The mounting hole must be aligned with the grounding point Figure 4 2 Alignment of Grounding Point 4 3 4220 Flow Meter Section 4 Submerged Probe Installation 4 3 Circular Channels 4 3 1 Spring Rings Consult your Isco Mounting Rings Installation and Oper ation Guide for detailed hardware information The following sections describe sensor installation using the two options available for mounting sensors in pipes or round bot tomed flow streams For pipes up to 15 38 1 cm in diameter stainless steel self expanding mounting rings Spring Rings are available For pipes larger than 15 in diameter Teledyne Isco offers the Scissors Rings Universal Mounting Rings To install a spring ring you compress the ring slip it inside the pipe and then allow it to spring out to contact the inside diameter of the pipe The inherent outward spring force of the ring firmly secures it in place A typical self expanding mounting ring with a probe mounted on it is shown in Figure 4 3 These mounting rings are available for use in pipes with inside diameters of 6 15 2 cm 8 20 3 cm 10 25 4 cm 12 30 5 cm and 15 38 1 cm The Teledyne Isco part numbers for the various size mounting rings available are listed in Appendix B These part numbers include not only the ring but also the mis cellaneous hardware necessary to mount
60. 4220 Submerged Probe Flow Meter Installation and Operation Guide N TELEDYNE ISCO Everywhereyoulook Part 60 3223 130 of Assembly 60 3224 052 Copyright 2001 All rights reserved Teledyne Isco Inc Revision AA October 11 2013 Foreword This instruction manual is designed to help you gain a thorough understanding of the operation of the equipment Teledyne Isco recommends that you read this manual completely before placing the equipment in service Although Teledyne Isco designs reliability into all equipment there is always the possi bility of a malfunction This manual may help in diagnosing and repairing the malfunc tion If the problem persists call or e mail the Teledyne Isco Technical Service Department for assistance Simple difficulties can often be diagnosed over the phone If it is necessary to return the equipment to the factory for service please follow the shipping instructions provided by the Customer Service Department including the use of the Return Authorization Number specified Be sure to include a note describing the malfunction This will aid in the prompt repair and return of the equipment Teledyne Isco welcomes suggestions that would improve the information presented in this manual or enhance the operation of the equipment itself Teledyne Isco is continually improving its products and reserves the right to change product specifications replacement parts schematics and instruc tions w
61. 5 and in pipes with smooth inside surfaces such as plastic pipes If any of these conditions are present or if movement of the mounting ring is detected or suspected you must anchor the ring in place You can do this by setting screws through the ring into the pipe or by other appropriate means If there is a problem with the smaller diameter rings it may be suf ficient to simply increase the outward spring force of the ring by bending it into a less round configuration 4 3 2 Scissors Rings 4220 Flow Meter Section 4 Submerged Probe Installation For pipes larger than 15 in diameter Teledyne Isco offers the adjustable Scissors Ring also known as the Universal Mounting Ring This device consists of two or more metal strips that lock together with tabs to form a single assembly There is a base section where the sensors are mounted one or more extension sections usually and a scissors section at the top that expands the entire assembly and tightens it inside the pipe The scissors mechanism includes a long screw that increases the width as it is tightened The assembled rings fit pipe diameters from 16 to 80 Secure the unit in place by tightening the scissors mechanism with a s socket wrench or other suitable tool Ring sections are 040 thick half hard 301 stainless steel sheet All other parts are also stainless steel except for the plastic cable ties in the hardware kit Each extension 1 2 3 and 4 adds 9 0 21
62. 5 Look for physical damage Burnt broken or overly hot components stuck or inopera tive switches or water damage may be apparent if you look closely 6 Look for shorted or open diodes and transistors especially driver transistors 7 Check the voltage regulators The output voltage from the regulators should be within 5 of their rated value Check to see that rated voltages are available at various places on the boards 8 Look for excessive current draw from some or all the cir cuitry This will usually be accompanied by an unusual amount of heat coming from some component or group of components and the voltage on the power rails may well be depressed 6 7 Precautions for Servicing CMOS Circuitry 6 7 1 Hazard of Static Electricity 4220 Flow Meter Section 6 Maintenance and Service 9 Check the input signals to the unit and see that they are correct This may require the use of an oscilloscope You may need to consult Customer Service for the proper appearance of wave forms 10 Check to see that the crystal oscillator is operating and at the proper frequency 11 Check the reset circuitry to see that it is working properly Most of the circuitry in the 4220 Flow Meter is made up of CMOS components Because of the oxide gate structure of these devices they are extremely susceptible to destruction caused by the dis charge of static electricity through their inputs Note that many of the driver transistors in
63. 6 8 9 10 12 15 18 21 24 27 30 48 Parshall Size 1 2 3 6 9 1 0 1 5 2 0 3 4 5 6 8 10 12 Trapez Size LG 60 V 2 45 WSC 45 SRCRC XL 60 Flume Size 5 75 1 2 2 5 3 4 5 HS Flume Size 0 4 0 5 0 6 0 8 1 0 HL Flume Size 2 0 2 5 3 0 3 5 4 0 Leopold Lagco Flume Size 4 6 8 10 12 15 18 21 24 30 Enter Equation Units Q __ H _ H Q kH kH Note that if your equation does not have a second term kH just enter 0 zero for it Manning Types Round Pipe U channel Rectangular Trapezoid Mann Round Pipe Slope _ ___ Rough _ Mann Round Pipe Diameter _ __ Feet or meters Mann U channel Slope _ Rough __ Mann U channel Width __ __ Feet or meters C 3 4220 Flow Meter Appendix C Programming Worksheets C 3 Parameter to Adjust C 4 22 23 24 25 26 27 28 29 30 31 Mann Rectangular Slope __ ___ Roughs _ __ Mann Rectangular Width _ __ Feet or meters Mann Trapezoid Slope __ __ Rough _ __ Mann Trapezoid Top Width __ __ Feet or meters Mann Trapez Bottom Width __ _ Feet or meters Select Data Set One Two Three Four None Level Units For Data Point Entry Ft In M Mm Flow Rate Units GPM GPS MGD CFS CFM M S M H M D LPS CFD GPH AFD CFH CFM MM Set _ 1 4 0 Points Entered Add Point units Set 1 Data Point 1 En
64. 7 Acts mechani 4 0 74 0 At top Manufac Combustible ant Colorless cally to deprive tured gas gas indicator odorless taste tissues of oxy sludge less Flammable gen Does not digestion support life tank gas electroly sis of water Rarely from rock strata Hydrogen HCN Faint odor of bit 0 93 Slight symp 10 6 0 40 0 Near top Insecti Detector tube Cyanide ter almonds toms appear cide and Colorless gas upon exposure rodenti to 0 002 to cide 0 004 0 3 rapidly fatal D 7 4220 Flow Meter Appendix D General Safety Procedures Table D 1 Hazardous Gases Continued Specific Explosive Likely i z Gravity 3 max masato Range by Location Most Simpiesnand Chemical Common Physiological Safe 60 8 Hour paar Cheapest Formula Properties Grete Effect Min Exposure Exposure volam alr Gu common Safe Method Density ppm ppm Limits Highest Sources of Testing Air 1 lower upper Concentration Gas Chemical Common Specific Physiological Max Max Explosive Range Likely IMost Simplest and Formula Properties Gravity or Effect Safe Safe by vol Location Common Cheapest apor 60 Min 8 Hour lin air lof Sources Safe Method Density Exposure Exposure Limits Highest lof Testing Air 1 ppm ppm lower upper Concentration Hydro HS Irritant and poi 1 19 Impairs sense 200 20 4 3 Near bottom Coal gas 1 HS gen Sul sonous volatile of smell rap to but may b
65. A o d MINNpuc Yd SUON ayesqyey OLJayowesed 009 ISA A A Ud 009 ISA 18 37 UON ysn py Oo BJawesed SBIBWELL d J9AI7 JsNIp Y E dais WesHold Figure 2 3 YSI 600 Sonde Calibration Flow Chart 2 41 4220 Flow Meter Section 2 Programming 2 42 2 4 6 Step 4 Reset Totalizer 2 4 7 Step 5 Sampler Pacing This step allows you to reset the flow meter s internal flow totalizer Note that there is the possibility of more than one totalizer All models have the capability of maintaining a sep arate totalizer for the time the sampler is enabled through the sampler enabling feature step 6 If you select step 4 the following will appear RESET TOTALIZER e YES e NO If you select NO the flow meter will advance to the next step If you select YES the flow meter will reset the internal totalizer to Zero Then if you have sampler enabling turned on step 6 the flow meter will ask you whether you want to reset the totalizer for the total flow during the time the sampler was enabled See step 6 for an explanation of sampler enabling ENABLE TOTALIZER XX CF or other units of measure PRESS ENTER Then RESET SAMPLER ENABLE TOTALIZER e YES e NO This step determines how the flow meter will signal an asso ciated automatic wastewater sampler to take a sample The flow meter and sampler must be connected toget
66. ABLE X XX pH 5 17 4220 Flow Meter Section 5 Options and Accessories When you have entered this second value the pH probe calibration is complete You can then install the probe in the flow stream M Note An asterisk may occasionally appear next to the pH reading for approximately 30 seconds during which time the most recent reading will be displayed This may be normal flow meter operation due to other internal functions or could indi cate pH fluctuation in the stream 5 10 2 pH Probe Installation Installation of the pH probe is similar to the submerged level Guidelines sensor and other parameter probes e Install the probe only in streams that have continuous flow The sensing end of the probe must always remain wet e For proper operation there must also be enough flow to submerge the sensing end of the probe completely If flow in the stream is intermittent dry for periods of time the pH sensing bulb will dry out and its response time will slow This is a problem in situations where pH changes rapidly If the probe is dry long enough it will first lose sensitivity then be slow to respond and finally stop working Never let the sensing end of the probe dry out completely e Installation in streams with high grease content will result in poor performance and require frequent cleaning and recalibration Greasy substances being nonconductors of electricity weaken the electrical potentials formed between t
67. Case 6 5 2 Fuse Replacement With the flow meter chassis out of the cabinet you can locate and change fuses The fuses are located on the printed circuit board directly behind the keypad There is an aluminum cover over this board Remove the cover by pressing against its surface with the palm of your hand and then pulling downward on it with your fingers A plastic catch under the cover holds it in place The fuses are labeled F1 F2 and F3 The proper size for each of these fuses is F1 5 amp fast blow F2 5 amp fast blow F3 2 1 2 amp fast blow Always replace a blown fuse with one of the same value Using a larger value fuse could cause serious damage to the flow meter or to its power supply Replace the protective cover making sure the two ears on top of the cover slide into the mating slots on the chassis There should be a noticeable snap when the plastic catch re engages the cover 4220 Flow Meter Section 6 Maintenance and Service Figure 6 7 Location of the Three Fuses 6 12 6 5 3 Display Warnings 6 5 4 System Reset The LCD will show various warnings and error messages to warn of problems in the program or difficulties inside the flow meter Some messages request routine maintenance others point out programming errors still others indicate serious internal diffi culties Following are typical warning messages displayed by the LCD CHECK PRINTER FUSE PRINTER JAMMED PAPER OUT If the flow mete
68. E F207 KR 2007 F MEN hFRRRA AK A BAZA The date of Manufacture is in code within the serial number The first three numbers are the year of manufacture 207 is year 2007 followed by a letter for the month A is January B is February and so on Table Hazmat 4200 Series F M 60 3213 371 Rev FmhAsAs WaARNrRNaiRree Name and amount of Hazardous Substances or Elements in the product AeA EW ROCK BAS Bh Hazardous Substances or Elements Component Name in AR F KE LIRIKA BUR RAK Pb Hg Cd Cr VI PBB PBDE BBB AR X O O O O O Circuit Boards AEB BA O O O O X O External Cables Amt EUER AW BMRSEB Name and amount of Hazardous Substances or Elements in the product O RARZRBAS VAEZRAMAYAMAPHSRYEST MEMENREERATE O Represent the concentration of the hazardous substance in this component s any homogeneous pieces is lower than the ST standard limitation X RRBZASRSWRSLE ZRH R DRASPHSRHMST MEMENREER Cl TEHA REKREI EFT OX BY BRR ET HE 2 A X Represent the concentration of the hazardous substance in this component s at least one homogeneous piece is higher than the ST standard limitation Manufacturer may give technical reasons to the X marks yg Ptr 8 FA BA 2 8 BE The Environmentally Friendly Use Period EFUP was determined through experience SPF ARREARS MEZMARA F207 RR 2007 F BRA SFRRRAL AAA BAZA The date of Manufacture is in
69. Information This product and its components are not listed on the NTP or OSHA Carcinogen lists Animal Toxicology Tests for DOT Hazard classification Tests Conducted on finely ground silica gel 1 hour LCs rat gt 2 mg 1 48 hour oral LDspo rat est gt 31 600 mg kg 48 hour dermal LDs rabbit est gt 2 000 mg kg Considered an ocular irritant 4220 Flow Meter Appendix E Material Safety Data Sheets Multisorb Technologies Inc Silica gel Indicating February 14 2009 Page 4 of 5 Human Toxicology Silica gel is a synthetic amorphous silica not to be confused with crystalline silica Epidemiological studies indicate low potential for adverse health effects In the activated form silica gel acts as a desiccant and can cause a drying irritation of the mucous membranes and skin in cases of severe exposure Multisorb Technologies Inc knows of no medical conditions that are abnormally aggravated by exposure to silica gel The primary route of entry is inhalation of dust Section 12 Ecological Information Not known to have any adverse effect on the aquatic environment Silica gel is insoluble and non toxic Section 13 Disposal Information Disposal Information If this product as supplied becomes a waste it does not meet the criteria of a hazardous waste as defined under the Resource Conservation and Recovery Act RCRA 40 CFR 261 Materials of a hazardous nature that contact the prod
70. O TEMPERATURE or any of the YSI options the flow meter will request that you set limits that will serve as the bottom of the chart and the chart full scale PRINTER LINE A BOTTOM SCALE X XX pH or other condition as selected previously You would enter here the lowest pH value you expect to see in your flow stream PRINTER LINE A FULL SCALE X XX pH or other condition as selected previously Enter here the highest pH value you expect to see in your flow stream Note that selection depends on the range you would nor mally see If your stream varies from 6 to 8 pH units you would not want to enter 0 and 14 as limits Chart resolution would be poor You could enter 5 and 9 pH and still have good resolution if there were sharp deviations because of the availability of over ranges Selection of OFF from the INPUT FOR PRINTER LINE menu will leave this line blank Selection of conditions other than pH D O TEMPERATURE or YSI functions will result in a request that you enter the full scale value for the con dition being plotted For example if you selected LEVEL as a condition the following would appear PRINTER LINE A FULL SCALE X XXXX FEET or other units of measure as selected The flow meter automatically goes into over range if the data goes higher than the full scale value you have selected You can easily recognize over range operation by the plotted line running off the right side of the chart and then immediate
71. OINT if you want to add another point to a data set CLEAR will erase an entire set of data points from the flow meter s memory PRINT will make the flow meter print out the entire data set UNITS allows you to set or change the units of measure used in the data set Note that you can only set UNITS if the set is empty or you have cleared it You cannot change the units once you have entered data points into a set unless you clear it and start over SAVE tells the flow meter to save the data set as it is If you select either EDIT POINT or ADD POINT the following display will appear SET X 1 4 DATA POINT XX 1 50 ENTER XX XX level units XXX XXX volume Enter Maximum Head All Models Before advancing from step 2 Flow Conversion to step 3 Adjust Ports the flow meter will request that you enter a value for Maximum Head Level for the device or flow conversion you are using For most standard measuring devices this information is pub lished or is available from the device manufacturer Note that you should not arbitrarily use the largest value available Instead use the value that is the largest expected level for your actual situation even if this is less than the published maximum 4220 Flow Meter Section 2 Programming The flow meter s internal resolution and its accuracy are based on the value you enter for Maximum Head The flow meter will display FLOW RATE AT MAXIMUM HEAD X XXX CFS
72. Program Steps for the 4220 are 1 Operating Mode Flow Conversion Adjust Level Parameters Reset Totalizer Sampler Pacing Sampler Enable Alarm Dialout Printer OMNAAA A WD Reports History M Note If you choose NOT MEASURED for any selection the flow meter will make no further reference to that value or function for the rest of the program and you will not be able to activate that process or function later on unless you reprogram step 1 If there is a feature or option you need that does not appear on your display when the manual says it should return to step 1 and make sure you have not inadvertently left it turned off in either the Program or Setup menus Note that selecting some features automatically excludes oth ers For example selection of pH or D O excludes the other parameter unless you use the YSI 600 Multi Parameter Sonde which measures pH D O and conductivity at the same time Step 1 Operating Mode determines how you set up the flow meter In this step there are two choices Program and Setup Program advances you to step 2 and from there on you cor relate the flow meter to the flow stream Setup selects various basic housekeeping features for the flow meter Here you determine the internal clock site identification measurement setup hysteresis report contents operation of the display back light and program lock In Program you select the units of measure the flow meter will use fo
73. RAMETER TO ADJUST e NONE LEVEL pH D O YSI 600 LEVEL will not show up if you are using the flow meter only for parameter sensing Likewise pH and or D O and YSI 600 will not show up on the display if you have locked them out by pro gramming selections you made in step 1 Remember that selection of either pH or D O in step 1 will keep the other from appearing on the display in this or subsequent programming steps If the parameter you want does not appear in this menu exit the program and return to Setup Check to see that you have not accidentally locked your choice out with selec tions you made in the early section of the program If you select NONE the flow meter will advance to the next step If you select LEVEL the following will appear ENTER CURRENT LEVEL X XXX FEET or meters First measure the level in the flow stream This is usually done with either a measuring stick or you read the level from a scale that may be painted or printed on the side of the primary mea suring device This picture shows you how D d h ee to measure level You then enter this value with the number keys Note that D LEVEL ADJUST must be done at the job site while i J most other programming a can be done in the shop Figure 2 2 Measuring Level in Round Pipes 2 36 M Note It is very important to enter accurate measurements for both the level in the stream and the dimension s of the ch
74. RE FT M Then ENTER ALTITUDE ALTITUDE XXXXX FEET or meters Enter the altitude for your location This is critical to the probe s accuracy The following display will then appear WRAP D O PROBE IN MOIST CLOTH PRESS ENTER WHEN STABLE X XXX MG L The reading is in milligrams of oxygen per liter If you chose PPM in program step 1 for D O units the reading would be in parts per million The parameter probes are installed in essentially the same way as the submerged probe level sensor The probes and their car riers snap onto Isco Spring Rings and the base section of Isco Scissors Rings You can also install them in other ways with custom hardware as is appropriate for your situation For details on the Spring Rings and the Scissors Ring refer to Section 4 The YSI 600 Sonde is a multi purpose water quality mea surement and data collection system It is intended for use in research assessment and regulatory compliance The YSI 600 Sonde can measure the following water qualities e Dissolved Oxygen e Conductivity pH e Salinity e Total Dissolved Solids e Temperature 5 27 4220 Flow Meter Section 5 Options and Accessories Cover removed to show sensors Conductivity D O sensor Inside End view facing sensors Figure 5 11 The YSI 600 Multiple Sensor Sonde 5 14 Mechanical Totalizer 5 28 The YSI 600 is ideal for profiling and monitoring water condi tions in
75. Rate pH D O Temp YSI pH YSI D O YSI Cond YSI Temp Plot Rainfall On Chart No Yes Report Generator A On Off Print Report A Duration To Be In Hours Days Months Enter Report A Duration Hours Print Report A at Yr Month ___Day ___Hr Min 5 Report Generator B On Off Print 6 Report B Duration To Be In Hours Days Months 7 Enter Report B Duration Hours 10 4220 Flow Meter Appendix C Programming Worksheets Print Report B at Yr Month ___Day ___ Hr Min Print Flow Meter History Yes No Print Flow Meter History Print Since Last Print All NOTES Additional table for Data Point Entry Data Point Set 2 C 7 4220 Flow Meter Appendix C Programming Worksheets C 8 4220 Flow Meter Appendix D General Safety Procedures D 1 Practical Safety Precautions In field installations of 4220 Flow Meters and associated equipment the safety of the personnel involved should be the foremost consideration The following sections provide safety pro cedures for working in and around manholes and sewers the first section offers general safety advice The second section deals with the special problem of hazardous gases found in sewers WARNING The 4220 Flow Meter has not been approved for use in hazardous locations as defined by the National Electrical Code CAUTION Before any flow meter is installed the proper safe
76. S NO Press Enter again and the display will return to the REPORT SETUP menu REPORT SETUP e FLOW e e DO PH e e YSI 600 e SAMPLE HISTORY e This time select SAMPLE HISTORY Press Enter The following display will appear SAMPLE HISTORY IN REPORT e YES e NO Select YES if you want SAMPLE HISTORY to appear in the report Press Enter again and the display will return to the REPORT SETUP menu REPORT SETUP e DO PH e SAMPLE HISTORY FLOW METER HISTORY This time select FLOW METER HISTORY Press Enter The fol lowing will appear FLOW METER HISTORY IN REPORT e YES e NO Select YES if you want HISTORY to appear in the report HISTORY is a list of the changes that have been made to the flow meter s program 4220 Flow Meter Section 2 Programming Press Exit to leave the program Then press Enter and reselect SETUP The Setup menu will reappear SETUP OPTIONS EXIT TO QUIT e STATUS e REPORT SETUP LCD BACKLIGHT e SET CLOCK SITE ID MEASUREMENT SETUP PROGRAM LOCK PROGRAM are off screen and can be reached with the arrow keys Select LCD BACKLIGHT with the arrow key Press Enter The following will appear LCD BACKLIGHT MODE e KEYPRESS TIMEOUT e e CONTINUOUS OFF e KEYPRESS TIMEOUT will cause the backlight to be turned on whenever you press a key on the keypad other than On and Off An internal timer is started t
77. SETUP section If you choose NOT MEASURED for any selection the flow meter will make no further reference to that function for the rest of the program and you will be unable to activate that function later If there is a feature you need that does not appear when the manual says it should return to step 1 and make sure you have not accidentally left it turned off If you program a parameter value as a condition for sampler enabling pacing dialout etc and then turn that parameter sensor off the flow meter will also remove that condition from the program Consider all aspects of your program before you make any changes Press Enter The following will appear UNITS OF LEVEL MEASUREMENT e FT o N M o e MM e NOT MEASURED e Selection of feet inches meters or mm depends on your situ ation You would select NOT MEASURED if you were using the flow meter for some other form of sensing only such as pH or 4220 Flow Meter Section 2 Programming temperature Press Enter The following will appear You will have to press the right arrow key several times to see all of the options displayed in the following menu FLOW RATE UNITS OF MEASURE e GPS GPM GPH MGD CFS CFM CF Pressing the right arrow key several times will move other units onto the display FLOW RATE UNITS OF MEASURE e eCFH CFD LPS M3S e M3M M3H M3D AFD 4 NOT MEASURED will also ap
78. V XX_X 2 13 4220 Flow Meter Section 2 Programming 2 14 Return to the Setup menu if the unit has not already done so This time select ENABLE ALARM HYSTERESIS from the menu Press Enter The following will appear LEVEL ENABLE ALARM HYSTERESIS X XXX FT or other units of measure The HYSTERESIS menu lets you set the range over which the level or other condition can vary before the flow meter responds to the change In the PROGRAM section of the software there are several steps that require a change in a condition to make the flow meter carry out certain actions For example step 6 programs the flow meter to enable activate a sampler In that step you select a condition or set of conditions that must occur before the sampler is enabled You enter a value level is an example that must be met before the enabling occurs But what if this value is met and then falls away It is possible for a condition to vary rapidly over a narrow range Without hys teresis the flow meter will turn the sampler off and on repeatedly causing a condition known as chattering that would result in very erratic operation of the sampler With hysteresis you can enter a value that will keep the flow meter from responding to insignificant changes in the enabling condition You should select a value for hysteresis that is narrow enough to allow the flow meter to respond to any serious change but broad enough to ignore min
79. VEL e FLOW RATE D O e pH e TEMPERATURE RAINFALL YSI pH YSI DO YSI CONDUCTIVITY and YSI TEMP may also appear As men tioned previously some of these menu options may not appear depending on selections you made earlier in the program At 4220 Flow Meter Section 2 Programming least one of the options will be available to you As mentioned for other program steps some of these menu options may not appear depending on the flow meter you have and choices you made earlier in the program D O pH TEMPERATURE and RAINFALL all require activation in step 1 and connection of the appropriate sensor to the flow meter D O and pH will never appear together as only one can be used at a time When you have selected the condition you want the display will advance to the following CONDITION e GREATER THAN LESS THAN RATE OF CHANGE e For these conditions you enter an amount which if exceeded GREATER THAN or if dropped below LESS THAN or if changed too quickly RATE OF CHANGE will activate the alarm dialout For RATE OF CHANGE you enter two values amount and time over which change occurs Then the display will advance to the following SELECT OPERATOR e DONE OR e AND As described for sampler enabling previously this step allows you to combine conditions to produce an alarm dialout signal Select DONE if you don t need more than one condition to trigger the
80. a sample after a specific volume of flow has passed through the flow stream rather than after a particular period of time In this mode the sampler and flow meter will be able to compensate for varying flow rates The 4220 Flow Meter may be used with any of the Isco Wastewater Samplers listed in Section 1 An optional 25 foot 7 6 m long connect cable is available to connect the flow meter to the sampler Attach the six pin female connector on the cable to the Sampler connector on the side of the flow meter This is the second connector from the top Attach the connector on the other end of the cable to the Flow Meter socket on the sampler The flow meter will then be connected to the sampler s power supply and the sampler will be able to receive flow proportional signals from the flow meter Refer to the sampler manual for further details 4220 Flow Meter Section 3 Flow Meter Installation 3 12 4220 Flow Meter Section 4 Submerged Probe Installation 4 1 General Mounting Considerations The following sections describe installation of the submerged probe The first section presents general mounting consider ations common to all submerged probe mounting techniques The following sections describe probe installation using the two systems available for mounting the submerged probe in pipes or round bottomed flow streams For pipes up to 15 inches 38 1 cm in diameter spring stainless steel self expanding mounting rings are avail
81. able For pipes larger than 15 inches in diameter Teledyne Isco offers the Scissors Ring For use in simi larly sized manhole inverts you can use the base and extension sections of the Scissors Ring without the scissors section The straps are held in place by studs installed in the wall of the flow stream using a power activated stud gun Submerged probes are also installed in primary measuring devices The location of the probe in the stream is usually dependent on the flow rate conversion used For example if you are using the probe with a primary measuring device WEIR FLUME flow con version when programming the flow meter there is a specific location for the probe with each primary device The Isco Open Channel Flow Measurement Handbook provides much useful information in this regard If you want to measure flow using a gravity flow equation such as the Manning equation you will generally install the probe in the entrance upstream pipe of a manhole If you want to measure flow by calibrating a manhole invert you would probably locate the probe directly in the manhole invert In any case you must determine the appropriate location of the probe based on the hydraulic characteristics of the site and the method of level to flow rate conversion used You do not have to install the submerged probe at the bottom of the flow stream Although the bottom is the normal position the Parameter to Adjust step in the program allows you to
82. able of Contents viii C 6 Sampler Enable nccriereta eie ioa ee e e Ea C 5 C 7 Alarm Dialout Mode seprana siyna cette nen eens C 6 C8 Printer sesan pere k a e E E eachald E ee Maa Sa vee eek C 6 9 Reports History esas ech e o a teat tal ibe iat Vee tae hes C 6 Appendix D General Safety Procedures D 1 Practical Safety Precautions 0 ccc een eee nes D 1 D 2 Lethal Atmospheres in Sewers 0 0 e een tenes D 4 D3 Hazardous Gases eocen i ce ee Ree Boe oe ee DO ie ee eee D 6 Appendix E Material Safety Data Sheets ET Overview ss x codes 56 debe Seek eo Os BE I BNE RIE ERE ASS E 1 List of Illustrations 1 1 Submerged Probe Level Sensor with Standard Tip 000000 1 4 1 2 4220 Side View Showing Connectors and Pin Functions 1 5 1 3 Measuring the Flow Meter Current 0 cece cee eee eens 1 12 2 1 The YSI 600 Sonde 0 0 cee cee tenet ene e nee eeas 2 8 2 2 Measuring Level in Round Pipes 0 0 cece eee ene 2 36 2 3 YSI 600 Sonde Calibration Flow Chart 00 cece eee eee eee eee 2 41 3 1 Nickel Cadmium Battery Installed on a Flow Meter 005 3 4 3 2 Power Pack Installed on a Flow Meter 0 cece eee eee eee nes 3 6 3 3 4220 Flow Meter Suspended by the Handle handles may vary 3 7 3 4 Quick Disconnect Box for the Submerged Probe Cover Removed 3 9 4 1 Submerged Probe Dimen
83. ainfall measurement in step 1 STORM selection is what you use when you want to monitor storm water runoff STORM enabling is really a combination of conditions First enter a value for LEVEL in the flow stream Second enter a value for RAINFALL Third enter an amount of time over which the rainfall occurs Finally you enter a time since the last rainfall You must have an Isco 674 Rain Gauge or approved equal to measure rainfall The following menus are the STORM sequence LEVEL GREATER THAN X XXX FT or other units of measure Then RAINFALL AMOUNT X XX INCHES or other units of measure Then RAINFALL TIME PERIOD e15 MIN e 30 MINe 1HRee2HRee4HRe If you press the right arrow key several times the following times will appear RAINFALL TIME PERIOD 6HR e 8HRee 12HRe 24 HR 48 HRe 72 HRe The intervals above are the periods of time over which the rainfall occurs The amount of rain entered in the previous step and detected by the rain gauge must fall during the time interval 2 45 4220 Flow Meter Section 2 Programming 2 46 chosen from this menu before the flow meter recognizes the event as a storm The next menu defines the interval that must pass between storm events TIME SINCE LAST RAINFALL DAYS X allowable entry of 1 7 If you select CONDITION from SAMPLER ENABLE the fol lowing will appear CONDITION e LEVEL FLOW RATE e D O pH
84. al that may swell considerably when soaked in water can interfere with the correct operation of the pressure transducer In extreme cases swelling material can put enough pressure on the dia phragm of the pressure transducer to deform it This will ruin the submerged probe by introducing a permanent offset to the pressure transducer Always install the probe where it will be under water even if only an inch or so The probe cannot measure levels that fall below its location in the stream It is important to note that there is a practical minimum water level below which the submerged probe cannot reliably measure level This minimum level is approximately equal to the height of the probe body 0 1 ft 1 3 in or 0 030 m Liquid levels lower than this will be below the levels used to cali brate the sensor The submerged probe level sensor will continue to measure levels less than 0 1 ft however the accuracy of the measurement in this range is not guaranteed Consequently you should always use the submerged probe with caution in very low flow situations 4220 Flow Meter Section 4 Submerged Probe Installation 4 2 Submerged Probe Teledyne Isco provides three nose sections each designed for spe Nose Sections cific flow stream conditions A complete list of nose sections and their part numbers can be Standard Nose found in Appendix B Section Standard Nose Section The standard nose section works in any flow stream and will be in
85. an authorized dealer should contact their Teledyne Isco dealer for warranty service Before returning any instrument for repair please call fax or e mail the Teledyne Isco Service Department for instructions Many problems can often be diagnosed and corrected over the phone or by e mail without returning the instrument to the factory Instruments needing factory repair should be packed carefully and shipped to the attention of the service department Small non fragile items can be sent by insured parcel post PLEASE BE SURE TO ENCLOSE A NOTE EXPLAINING THE PROBLEM Shipping Address Teledyne Isco Attention Repair Service 4700 Superior Street Lincoln NE 68504 USA Mailing Address Teledyne Isco PO Box 82531 Lincoln NE 68501 USA 800 775 2965 lab instruments 866 298 6174 samplers amp flow meters Sales amp General Information 800 228 4373 USA amp Canada Phone Repair service Fax 402 465 3001 Email October 11 2013 P N 60 1002 040 Rev H IscoService teledyne com 4 TELEDYNE ISCO Everywhereyoulook
86. ance to the fol lowing display YSI 600 pH UNITS OF MEASURE e pH e NOT MEASURED e e Selection of NOT MEASURED from any of the YSI menus will prevent you from activating that function later in the program If you wish to make use of the YSI 600 sonde s pH measurement capability select pH If you do not select NOT MEASURED YSI 600 D O UNITS OF MEASURE e MG L e e NOT MEASURED e If you wish to make use of the YSI 600 sonde s D O measurement capability select MG L Otherwise select NOT MEASURED YSI 600 CONDUCTIVITY PARAMETER eYSI SP CONDe YSI SALINITY YSI CONDUCTIVITY gt For any of the YSI CONDUCTIVITY options if you press Enter the following display will appear TEMPERATURE COEFFICIENT 1 91 2 4 4 Step 2 Flow Conversion Level to Flow Rate 4220 Flow Meter Section 2 Programming This value is provided because conductivity rises 2 C with temperature The default setting is 1 91 This value is the tem perature coefficient for pure KCl potassium chloride in water For other salts this value will be somewhat inaccurate but it does provide a close approximation for solutions of many common salts such as NaCl sodium chloride NH Cl ammonium chloride and sea water If you use the value of 1 91 in most cases you will be able to identify that gross changes are occurring in the ionic content of the stream If you move with the right arrow the follo
87. annel as all calculations of flow will be based on these measurements If the values entered are incorrect even by relatively small amounts all subsequent flow calculations will also be incor rect For example an error of only 14 for a 3 level and 14 fora 10 diameter round pipe can result in a combined error of over 4220 Flow Meter Section 2 Programming 14 Errors in level measurement have a greater effect on flow cal culations at low liquid levels Dimensional errors tend to be more significant at higher levels If you select pH for Parameter to Adjust the following display will appear Note that pH will not appear as an option unless you have selected it in step 1 If you want to measure pH and pH does not appear in this step you must go back to step 1 and select pH instead of NOT MEASURED pH CALIBRATION pH4 amp 7 pH7 amp 10 pH 4 7 amp 10 You can perform a two or three point calibration for pH with the pH sensor Select the calibration that best suits your stream s profile If the pH in your stream in generally below 7 you would probably select pH 4 amp 7 If the pH is generally above 7 you would probably select pH 7 amp 10 If your stream s pH varies a great deal say from 3 to 12 your best choice would be pH 4 7 amp 10 Then RINSE PROBE AND PLACE IN 4 0 pH SOLUTION PRESS ENTER WHEN STABLE X XX pH The flow meter will direct you to repeat this process with the
88. annot enter the manhole If testing equipment is not available the manhole should be assumed to contain an unsafe atmosphere and forced ventilation must be provided It should never be assumed that a manhole is safe just because there is no odor or the manhole has been entered previously 4 Entering Manholes Since the top of the manhole is usually flush with the surrounding surface there may not be anything for the person who is entering the manhole to grab on to steady himself Persons who are entering manholes should not be per mitted to carry anything in their hands as they enter the manhole to ensure that their hands will be free to hold on or grab if they slip A good method for entering a manhole is to sit on the surface facing the manhole steps or ladder with the feet in the hole and the arms straddling the opening for support As the body slides forward and downward the feet can engage a rung and the back can rest against the opposite side of the opening If there is any doubt about the soundness of the manhole steps a portable ladder should be used A person should never enter a manhole unless he is wearing per sonal safety equipment including a safety harness and a hard hat Two persons should be stationed at the surface continuously while anyone is working inside a manhole to lift him out if he is overcome or injured One man cannot lift an unconscious man out of a manhole The persons stationed at the surface sh
89. ary mea suring devices is provided in the Isco Open Channel Flow Mea surement Handbook This useful book provides formulas flow rates at various levels and values for maximum head as well as much interesting descriptive material and is available from Teledyne Isco If your installation uses a nonstandard primary device you should consult the manufacturer of the device for flow rates at given levels The flow meter will then calculate a flow conversion for such a device on the basis of the manufacturers data you enter as data points or an equation In some instances a nonstandard primary device could be supplied with a flow equation you can enter that equation into the flow meter and the flow meter will calculate the flow rate from that equation Note however that it is not always necessary to have a primary measuring device The 4220 Flow Meters can measure level and calculate flow without having any primary device installed in the flow stream Sometimes the shape of the flow stream itself forms the primary device The Manning formula uses the shape of a pipe or channel and its slope to calculate flow in open non pressurized pipe situa tions The conversion types available are WEIR FLUME MANNING DATA POINTS and EQUATION You use Weir Flume flow conversion when your primary mea suring device is a weir or a flume A weir is a wall or dam across the flow stream Water must rise to the point where it flows over the top of the
90. at tery 14 days with plotter turned off Operating Temperature 0 to 140 F 18 to 60 C Storage Temperature 40 to 158 F 40 to 70 C Additional Power Required for Optional Equipment Modem 60 mA maximum during operation 0 1 mA maximum standby High Low Alarm Relay Box 10 mA standby typical 190 mA both relays operated Internal Printer Chart Speeds Off 42 1 2 or 4 inches per hour See Table 1 4 for chart longevity Ribbon 19 7 ft 6 m black nylon replaceable Operating Speed 1 5 lines per second at 68 F 20 C Character Size 0 09 high x 0 07 wide 2 4mm x 1 7 mm 12 pitch Printer Recording Span Chart Resolution Display Resolution User selected from 1 4 ft 3 6 cm to over 30 ft 9 1 m with multiple over ranges 1 240 of selected recording span 0 001 ft 0 3 mm Paper 4 5 wide x 58 ft 11 4 cm x 17 7 m plain white paper replaceable Printer Reliability Reports Printed 2 5 million lines MCBF mean cycles before failure Program selections interval activity reports flow meter history Printer Recording Modes Level flow rate includes totalized flow sampler events rainfall tem perature pH or D O dissolved oxygen 1 7 4220 Flow Meter Section 1 Introduction Table 1 2 Technical Specifications for the 4220 Flow Meter Continued Plotted Linear Data 3 different linear
91. ate amplifier box connected between the probes and the flow meter Remember that programming for one type of sensor will prevent the display of any references to the other in later program steps All sensors but the rain gauge are mounted fully submerged in the flow stream The pH and D O probes must be kept con stantly wet or they can be damaged 2 25 4220 Flow Meter Section 2 Programming 2 26 Their use in streams with intermittent flow such as storm drainage is not recommended Note that the pH probe is a con sumable item and will eventually need replacement in any case RAIN GAUGE e INCHES e MM e NOT MEASURED e You must have an Isco 674 Rain Gauge or approved equiv alent connected to the flow meter through the Rain Gauge Port to sense rainfall MM millimeters The rain gauge is factory calibrated See Section 5 for more information about the rain gauge If you are not using a rain gauge you would select NOT MEASURED for this step pH UNITS OF MEASURE e pH e NOT MEASURED e pH measurement determines the relative acidity or alkalinity of a solution You must have an Isco pH Probe or approved equiv alent connected to the flow meter through the parameter port to sense pH pH measurements range from 0 to 14 pH units with solutions below 7 considered acidic and solutions above 7 alkaline Pure water has a pH of 7 These devices require periodic recalibration for accurate sensing
92. ation You will need to mount the unit within 25 feet 7 6 m if you connect the probe directly to the flow meter You can extend the distance to 50 feet 15 3 m if you use the optional 25 Foot Extension Cable Using the optional 50 Foot Extension Cable lets you increase the distance to 75 feet 22 8 m For distances up to 1 000 feet 304 8 m use the optional Quick Disconnect Box Distances greater than 1 000 feet are not recommended Details on the extension cables and Quick Dis connect Box can be found in Section 5 of this section The 4220 does not have any special requirements for mounting You can locate it on any relatively flat surface either horizontally supported by the two mounting pads and the stainless steel mounting bracket or vertically supported by the two plastic rails on the bottom of the case You can also panel mount the flow meter using the mounting bracket on the top rear of the case or suspend it from a ladder rung using the optional suspension bracket To use the bracket the carrying handle should first be installed on the flow meter as described above Then slip the handle through the suspension bracket If you suspend the flow meter above the flow stream and there is any possibility of accidental submersion attach several feet of vinyl tubing to the open vent on the end of the external desiccant cartridge You should route this tubing to a place higher than the maximum possible level of the flow stream T
93. ature Compensation Performed by software inside the flow meter The standard pH Probe contains an integral temperature sensor 5 10 3 Storage and If you remove the pH probe from operation be careful to keep the Maintenance of pH glass sensor bulb wet Always store the probe with the rubber Probes cover screwed completely over the threaded end of the sensor Exposure to air causes the glass membrane on the sensor bulb to dry out This makes it very slow to respond in solution Pro longed or repeated dehydration of the bulb will ruin the probe The pH sensitive glass can also become conditioned to its envi ronment especially when it is continuously exposed to high pH 10 and above solutions The glass does have a memory and will respond slowly when exposed to a lower pH solution after having been in a high pH solution for any significant period of time 5 20 5 11 The Dissolved Oxygen D O Probe Figure 5 9 Isco D O probe 4220 Flow Meter Section 5 Options and Accessories Storage of a pH probe in a 4 0 buffer solution is recommended as this has a regenerative effect on the glass and does not put a memory on it Tap water will work if 4 0 buffer solution is not available Deionized water is good for quick rinses to clean the element but not for prolonged storage of an electrode Con tinuous exposure of the ion sensitive membrane to a wetted but non ionic solution will improperly condition the membrane The
94. ccoces sad coasee savetadecbedeacunacs inaceecun cesta daedutee cousuta vane covaeevavadeaderdeneviese 60 2503 097 Flume Probe Cap rreren a ates eel ath vied MA ieee 60 2503 105 Submerged Probe 10 Range with 25 foot cable cccccsessssscceceseccecesesessnsscseceeeesecseeseees 60 3224 002 25 Extension Cable for the Submerged Probe cccccccssssssscecessseeeeceescseeeeceeesesaaeeeessenaaees 60 3224 004 50 Extension Cable for the Submerged Probe cccccccessssceccessssececessssneeecsseseeeeesseseeeeeees 60 3224 005 Reference Port Tubing 10 x 1 4 ID Vinyl provides an extension to the desiccant tube 60 2703 111 Reference Port Tubing 25 x 4 ID Vinyliw ccccccscsccsssssscscesssscsvscscecsesevsvsvsvscseseeesssesavavavacseneaes 60 2703 112 Submerged Probe Quick Disconnect Bok ccccccccccescssssessnseceecececcecsessesscsssaeeeeeeeeeeseesenesaea 60 3224 003 Submerged Probe Carrier Assembly Use with Isco Mounting Rings cccccccseeesssceseeeeeess 60 3204 005 Interrogator Cable 9 pim teis i pecs deep steae ce tesguadebed Seed ede Sheen edewlaaed Sadao eee sventebea ts ede 60 2544 044 Interrogator Cable 25 PID ciren iei n errea eaa doles cuuddabeseulsddabbsaseacteGaacucdedboecusddaseaas 60 2544 040 Standard Y Cable for Isco Samplers 0 ccccsssssecessssececesssssececeseseeeecesssesesecesseseeaesssesenaeeeess 60 3704 081 Special Y Cable without diodes ccccecssccessss
95. code within the serial number The first three numbers are the year of manufacture 207 is year 2007 followed by a letter for the month A is January B is February and so on Table Hazmat Sensors 60 2003 552 Rev DECLARATION OF CONFORMITY ISM1 A Application of Council Directive Manufacturer s Name Manufacturer s Address Equipment Type Environment Trade Name Model No Year of Issue Standards to which Conformity is Declared 89 336 EEC The EMC Directive 73 23 EEC The Low Voltage Directive Teledyne Isco Inc 4700 Superior Lincoln Nebraska 68504 USA Mailing Address P O Box 82531 Lincoln NE 68501 Laboratory Equipment for Light Industrial Commercial Environments Model 4220 Submerged Probe Flow Meter 2000 EN 50082 1 Generic Immunity for Commercial Light Industrial Environment EN 61010 1 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use Standard Description Severity Applied Performance Criteria IEC 801 2 Electrostatic Discharge Level 2 4kV contact discharge B Level 3 8kV air discharge B IEC 801 3 Radiated RF Immunity 27 MHz to 500MHz A Level 2 3 V m IEC 801 4 Electrical Fast Transient Level 2 1kV on ac lines B CISPR11 RF Emissions Group 1 Class A Industrial Scientific EN 55011 and Medical Equipment Instrument is susceptible to 3V m between 105 mHz and 500 mHz We the undersigned hereby declare that
96. ctedeaethcead aeaa e es a e E A DE EE eh 479 0020 02 Includes 30 0 002 membranes electrolyte sanding tool and disks O Ring Kit for D O Probes era E E EE EEEE ERa 479 0020 00 Temperat re Probe Onl Yauna enni e a a r e a a t 60 3214 130 YSI 600 Sonde with pH D O conductivity temperature sensors and 25 ft cable 68 0600 110 M Note Item 68 0600 110 includes a YSI to Ilsco 4200 6700 adapter cable calibration transport cup 1 stainless steel nose weight and YSI instruction manual Many other configurations of the YSI 600 Sonde are available without either the pH and or D O sensors or supplied with 50 100 or 200 ft cables Also avail able is a low ionic strength pH sensor for use in streams with very low conductivity 10mmhos cm or less Call the factory for more information D O Sensor Maintenance Supplies D O Probe membrane and electrolyte kit 30 membranes 30 mL KCI soln 2 O rings 60 0603 205 D O Probe reconditioning kit Instructions and sanding disks ccccccccessssseeeeeeeseeees 60 0603 206 Miscellaneous for use with the YSI Sonde Calibration Transport Bottle Kit cccccccccsssssececessssececceesseceeceeseeeeeceseseeseecsseeeesaeeseseesaeeess 60 0603 216 Carrying Case for YSI 600 cables accessories tools ccccccsccecceseccecesesessssssaeeeeeeseeceeeseees 60 0603 217 YSI 600 Instruction Manual 0 cccccessecessceesseceeeeecesaeceseaeeceeaeceseaaeccesee
97. d Not applicable Flammable Limits Not flammable Lower Flammability Limit Not applicable Upper Flammability Limit Not applicable Auto ignition Temperature Not applicable Hazardous Combustion Products Not applicable Extinguishing Media Use extinguishing media that is appropriate for the surrounding fire Silica gel is not combustible Fire Fighting Instructions Not combustible Unusual Fire and Explosion Hazards None Explosion Data Not sensitive to statistic discharge Not sensitive to mechanical impact Section 6 Accidental Release Measures Spill Sweep or vacuum up and place the spilled material in a waste disposal container Avoid raising dust Wash with soap and water after handling Section 7 Handling and Storage Handling Avoid raising dust and minimize the contact between worker and the material Practice good hygienic work practices Storage Store in a cool dry location Keep in sealed containers away from moisture The silica gel will readily adsorb moisture Section 8 Exposure Controls Personal Protection Engineering Controls Use exhaust ventilation to keep the airborne concentrations below the exposure limits Respiratory Protection Use NIOSH approved respirator when the air quality levels exceed the TLV s Skin Protection Light cotton gloves will protest against abrasion and drying of the skin Eye Protection Safety glasses Exposure Limits
98. d secure it with the rubber draw catches Attach the connector to the flow meter If your flow meter is permanently installed you may need to allow extra clearance above the flow meter for the slightly greater height of this battery N CAUTION Do not test either type of battery for the condition of its charge by sparking the output shorting the terminals together with a screwdriver or other tool Teledyne Isco also offers two different AC power supplies the High Capacity Power Pack and the Battery Backed Power Pack to power the flow meter These power packs are designed for operation from 120 Volts AC 50 60 Hz commercial power sources Alternate versions designed for operation from 240 Volts AC 50 60 Hz are also available and are intended primarily for export Both are supplied with a line cord for convenient attachment to the AC power source 3 5 4220 Flow Meter Section 3 Flow Meter Installation Figure 3 2 Power Pack Installed on a Flow Meter They are both capable of powering the flow meter The Battery Backed Power Pack provides 12 VDC at 5 Amperes and is backed up by a 1 2 Ampere hour nickel cadmium battery This is built in a package the same size as the standard power supply and is intended for use where short term power interruptions are frequent but unacceptable for flow meter operation The battery in the Battery Backed Power Supply is of limited capacity It is intended for short term backup duty only W
99. d which if not avoided may result in minor or moderate injury This category can also warn you of unsafe practices or conditions that may cause property damage WARNING Warnings identify a potentially hazardous condition which if not avoided could result in death or serious injury DANGER DANGER limited to the most extreme situations to identify an imminent hazard which if not avoided will result in death or serious injury 4220 Flow Meter Safety Hazard Symbols Warnings and Cautions gt gt The equipment and this manual use symbols used to warn of hazards The symbols are explained below Hazard Symbols The exclamation point within the triangle is a warning sign alerting you of important instructions in the instrument s technical reference manual The lightning flash and arrowhead within the triangle is a warning sign alert ing you of dangerous voltage inside the product Symboles de s curit Ce symbole signale l existence d instructions importantes relatives au produit dans ce manuel A AN Ce symbole signale la pr sence d un danger d lectocution Warnungen und Vorsichtshinweise Das Ausrufezeichen in Dreieck ist ein Warnzeichen das Sie darauf aufmerksam macht daB wichtige Anleitungen zu diesem Handbuch geh ren gt gt Advertencias y Precauciones Der gepfeilte Blitz im Dreieck ist ein Warnzeichen das Sei vor gefahrlichen Spannungen im In
100. d probe cable or making sharp bends in it when installing or servicing the probe Excessive pressure may collapse the cable crushing the refer ence vent tube Sharp bends may cause the cable to kink also blocking the vent When securing the cable with plastic cable ties tighten them only enough to secure the cable do not tighten them so much that the cable jacket is visibly deformed 6 6 4220 Flow Meter Section 6 Maintenance and Service 6 4 Maintenance of the The internal printer needs little maintenance beyond changing Printer the chart roll and the ink ribbon Refer to the pictures provided for each section Also refer to the label inside the cabinet END CAP ASSEMBLY SUPPLY SPOOL END CAP ASSEMBLY 1 REMOVE REROLL AND SUPPLY ASSEMBLIES 4 INSERT PAPER END INTO PLOTTER ENTRANCE AND REMOVE WHITE CAPS MARKED BY ARROW ON PLOTTER AND PRESS CHART ADVANCE 2 PLACE EMPTY SPOOL ON REROLL ASSEMBLY AND NEW SPOOL ON SUPPLY ASSEMBLY 5 ADVANCE PAPER SO SEVERAL INCHES EXTEND REPLACE BOTH END CAPS FROM PLOTTER 3 FOLD END OF NEW PAPER AS SHOWN AND 6 REINSTALL REROLL ASSEMBLY AND TAPE REINSTALL SUPPLY ASSEMBLY END OF PAPER TO EMPTY SPOOL Figure 6 4 Changing the Chart Paper 6 4 1 Changing the Roll of To change the chart paper you will need Paper e anew roll of paper e a knife or a pair of scissors e a small piece of tape The printer will shut down when the paper runs out The roll is nearly empty when a 1 inch
101. delay between calling the first number and calling the second etc This option gives you time to respond to an alarm before the flow meter dials the next number Select a value between 1 and 99 minutes Then the display will advance to the following CALLBACK TO DISABLE ALARM e YES e NO Select YES if you want to be able to acknowledge the alarm con dition in the flow meter by calling back No message is spoken on this callback When the flow meter s modem detects the ring it will answer and automatically reset the alarm If there is no one available to answer an alarm you can have the flow meter dial a paging service and then someone with a pager can call back to acknowledge the alarm To acknowledge an alarm from a touch tone phone wait for the spoken message to complete then press X X X The X X X are the three digits of the site ID number This step sets up the operation of the flow meter s internal printer This printer also functions as a plotter Note that the printer plotter is capable of printing alphanumeric information words and numbers and at the same time plotting linear data like flow level pH etc The unit can print as many as three dif ferent data lines at the same time it regularly records other printed information routinely supplied from the flow meter Program selections made in this step will determine the appearance of the printer printer s chart The first menu will request the speed of the chart
102. ds of the battery case Then screw the battery connector into the top mating con nector on the right side of the flow meter case Figure 3 1 Nickel Cadmium Battery Installed on a Flow Meter 3 4 3 2 5 Isco Lead Acid Battery 3 2 6 Attaching the Isco Lead Acid Battery 3 2 7 AC Power Supplies 4220 Flow Meter Section 3 Flow Meter Installation Teledyne Isco also offers a 6 5 ampere hour 12 volt rechargeable lead acid battery to power the flow meter This battery is similar in size to the nickel cadmium battery except somewhat larger reflecting its 50 greater capacity For those familiar with nickel cadmium batteries operation and maintenance of these batteries differs somewhat e Fewer charge discharge cycles are possible and a single deep discharge can ruin a battery if you allow it to run down all the way to the point of cell reversal e There is a linear voltage decrease as the battery discharges while nickel cadmium batteries show essen tially the same voltage throughout discharge e Failure to recharge promptly and low temperature operation can also ruin the battery Proper operation and maintenance is necessary for normal service life For detailed information on these batteries refer to the Power Products Guide Please read that manual if you intend to use lead acid batteries on your flow meter The lead acid battery installs the same way as the nickel cadmium battery Place the battery on top of the case an
103. e If in doubt check with a reliable DC voltmeter Never attach the flow meter directly to an AC power source of any voltage under any circumstances Charge the battery in accor dance with the manufacturer s instructions Figure 3 3 4220 Flow Meter Suspended by the Handle handles may vary 3 3 Flow Meter Mounting and Installation Procedures 3 3 1 Carrying Handle Because the 4220 Flow Meter is a portable device you may or may not install it permanently You can suspend the flow meter in temporary installations such as sewers or mount it perma nently in other installations such as treatment plants at your option To help you carry and install the flow meter a handle is provided in the accessory package 3 7 4220 Flow Meter Section 3 Flow Meter Installation 3 3 2 Location of the Flow Meter 3 3 3 Mounting the 4220 3 3 4 Suspension Above the Flow Stream 3 4 Quick Disconnect Box 3 8 Because the flow meter uses a submerged probe for level mea surement you do not have to install it directly above the primary measuring device or even particularly close to the flow stream You can install the flow meter in a convenient protected location and route the submerged probe cable to the place where the level sensor is mounted For example you can install the flow meter above ground for pro tection and easy accessibility and then you only need to enter the manhole once for submerged probe installation and calibr
104. e 40 000 level readings An optional 4200T Modem with speech capability is available to transmit stored data over standard dial up telephone lines The 4220 Flow Meter may be used with the following equipment Manufactured by Teledyne Isco e 3700 Series Sequential Composite and Refrigerated Samplers e 6700 Series Portable and Refrigerated Samplers e 4 20 mA Output Interface e 581 Rapid Transfer Device 1 1 4220 Flow Meter Section 1 Introduction 1 3 Operating Principles e 674 Tipping Bucket Rain Gauge e High Low Alarm Relay Box Non Isco Products e IBM Personal Computer or compatible clone with Isco Flowlink software e Laptop Computer with Isco software e YSI600 Multi Parameter Sonde Optional Accessories e 4200T Modem Speech capable with connector and cable e D O dissolved oxygen and pH parameter probes e Submerged probe Extension Cables Vented in lengths of 25 and 50 feet Maximum distance between probe and flow meter with extension cables is 75 feet e Quick Disconnect Box for Submerged Probe Allows installation of probe as far as 1000 feet from flow meter e Isco Flowlink Software for data acquisition storage and management e Mounting rings and extensions for the submerged probe When measuring flow rate the 4220 is normally used with a primary measuring device weir or flume or other open channel flow arrangement where a known relationship exists between level and flow rate You can al
105. e 6 7 6 4 2 Ink Ribbon Replacement 0 0 cece eee eens 6 9 6 4 3 Do Not Disassemble or Lubricate the Printer 000 6 10 6 5 Servicing And Troubleshooting 0 00 6 10 6 5 1 Disassembling the Flow Meter 0 0 0c cece ene nee 6 10 6 5 2 Fuse Replacement 0 0 ccc cee ene ene 6 11 6 5 3 Display Warnings 0 0 ccc ee ene 6 12 6 5 4 System Reset oie e eset epa e acetate aod this E e a e E adits a aSa 6 12 6 6 Preliminary Troubleshooting Steps 0 c cece een eens 6 13 6 6 1 If Serious Problems Occur 0 0 cece cent nns 6 13 6 6 2 Inspection Protocol 0 0 eect tenes 6 14 6 7 Precautions for Servicing CMOS Circuitry 0 00 c ce eee 6 15 6 7 1 Hazard of Static Electricity 0 0 00 ccc eens 6 15 6 8 Software Updates e 0 0 cc eee e nen eee nns 6 17 6 8 1 Updating the Flow Meter Software 0 c cece eee nee 6 17 Appendix A Replacement Parts Appendix B Accessories List Appendix C Programming Worksheets Gal Seba pe mestrea staid eo he e lah tad tat Ce es bt ee bd ets Anh at 186 C 1 C 2 Flow Conversion Level to Flow Rate 0 0 ccc ee eee nee C 3 C 3 Parame ter to Adjust eingo cereri oia noha apelin whet ek de Tee Gea Lace C 4 G4 Reset Totalizer rinn ceina sos ete Ha ose Asis E tae a ese Pa it EG Behn Be EE C 5 C 5 Sampler Pacing osou oscene eee ne ba eee eee A eee a C 5 vii 4220 Flow Meter T
106. e NO Select YES if you want LEVEL to appear in the report then press Enter The following will appear FLOW RATE IN REPORT e YES e NO Select YES if you want FLOW RATE to appear in the report then press Enter again Then RAINFALL IN REPORT e YES NO Select YES if you want RAINFALL to appear in the report Note that you must have a rain gauge connected to the flow meter to sense rainfall occurrence Press Enter The following will appear REPORT SETUP e FLOW e e DO PH e e YSI 600 e SAMPLE HISTORY e FLOW METER HISTORY is off the screen to the right Select DO PH Press Enter The following will appear PH OR DO IN REPORT e YES NO e 2 21 4220 Flow Meter Section 2 Programming 2 22 Select YES if you want DO PH to appear in the report Note that you must have the appropriate sensor connected to the flow meter to sense parameters the flow meter is capable of sensing temperature pH and temperature and D O dissolved oxygen and temperature Press Enter The following will appear TEMPERATURE IN REPORT e YES e NO Select YES if you want TEMPERATURE to appear in the report Press Enter again and the display will return to the REPORT SETUP menu REPORT SETUP e FLOW e e DO PH e e YSI 600 e SAMPLE HISTORY e FLOW METER HISTORY is just off the screen Now select YSI 600 The following display will appear YSI DATA IN REPORT e YE
107. e discomfort and irritation seen as tearing and reddening Skin The product dust may cause drying of the skin Silica gel may get hot enough to burn skin when it adsorbs moisture rapidly Use an excess of water to cool the silica gel Ingestion Material is not toxic and will pass through the body normally Inhalation Slight irritation is possible but none is expected Medical Effects Generally Aggravated by Exposure Respiratory ailments Chronic Effects Carcinogenicity May cause eye skin and mucous membrane irritation and drying Section 3 Composition Information on Ingredients Component Name CAS Number by Weight Synthetic amorphous silica gel SiO2 112926 00 8 100 Cobalt Chloride 7646 79 9 5 While this material is not classified as hazardous under OSHA regulations this MSDS contains valuable information critical to the safe handling and proper use of this product This MSDS should be retained and available for employees and other users of this product Section 4 First Aid Measures Eyes Rinse eyes well with water while lifting eye lids If irritation persists consult a physician Skin Wash affected area with soap and water Ingestion Ingestion is unlikely this material will pass through the body normally Inhalation Remove the affected person to fresh air and get medical attention if necessary 4220 Flow Meter Appendix E Material Safety Data Sheets Flash Point Not applicable Metho
108. e language for programming The other language depends on how the flow meter was ordered The following display will appear LANGUAGE e ENGLISH second language as ordered e 2 23 4220 Flow Meter Section 2 Programming 2 4 3 Step 1 Program 2 24 Select the language appropriate for your application The menus and the printed reports will appear in the selected language Press Enter The SETUP menu will reappear This time select PROGRAM LOCK from the menu Press Enter PROGRAM LOCK eON OFF PROGRAM LOCK keeps the program from being changed Select OFF while you are programming and then go back and select ON if you need to lock the program At that we suggest using the lock only if there are compelling security reasons Further changes will require entry of the password which is the model number of the flow meter 4220 If you select ON there is a time out before the lock engages If you continue to work through the rest of the program the lock will not engage until you are done But if you stop programming longer than two minutes the lock will engage and you will not be able to make any further program changes Press Enter and the SETUP menu will reappear SELECT OPTION PROGRAM e e SETUP PROGRAM will flash Note that PROGRAM is always the default choice That is because you are more likely to need to make changes in the PROGRAM section of the software than in the
109. e membrane pores You must usually replace both the electrolyte and the membrane to get an accurate reading In severe cases of fouling it may be necessary to change the membrane very frequently even as often as every other day A thin permeable membrane stretched over the sensor isolates the electrodes from the environment but allows gases to enter When a polarizing voltage is applied across the sensor oxygen that has passed through the membrane reacts at the cathode causing a current to flow The membrane passes oxygen at a rate proportional to the pressure difference across it Since oxygen is rapidly consumed at the cathode it can be assumed that the oxygen pressure inside the membrane is zero Hence the force causing the oxygen to diffuse through the membrane is propor tional to the absolute pressure of oxygen outside the membrane As the oxygen partial pressure varies both the oxygen diffusion through the membrane and the probe current change propor tionally The following describes how to prepare a new probe for use or how to change membranes on an existing probe First unscrew the sensor guard remove the O ring and membrane then thor oughly rinse the sensor with distilled water Prepare the KCl electrolyte according to the directions on the bottle Use distilled water only You install the membranes by hand The probe is shipped with a small folder containing several replacement mem branes 5 11 3 Membrane Thicknesses
110. e petro Ampoule fide compound Rot idly as concen 300 45 0 above bottom if leum ten egg odor in tration airisheated and sewer gas 2 5 by weight small concentra increases highly humid Fumes lead acetate tions Exposure Death in few from blast solution for 2 to 15 min at minutes at ing under 0 01 impairs 0 2 Exposure some con sense of smell to 0 07 to 0 1 ditions Odor not evident rapidly causes Sludge gas at high concen acute poison trations Color ing Paralyzes less Flammable respiratory center Methane CH Simple asphyxi 0 55 Acts mechani Probably no limit 5 0 15 0 At top increas Natural 1 Combustible ant cally to deprive provided oxygen ing to certain gas sludge gas indicator Colorless odor tissues of oxy percent age is suf depth gas manu less tasteless gen Doesnot ficient for life factured 2 Oxygen defi flammable support life gas sewer ciency indica gas Strata tor of sedi mentary origin In swamps or marshes Nitrogen N2 Simple asphyxi 0 97 Physiologically Near top but Sewer gas Oxygen ant Colorless inert may be found sludge gas deficiency tasteless near bottom Also issues indicator Non flammable from some Principal constit rock strata uent of air about 79 Nitrogen NO Colorless 1 04 60 to 150 ppm 50 10 Near bottom Industrial NO detector Oxides cause irritation wastes tube N0 Colorless and coughing Com
111. e published for connecting the modem to the phone line This equipment complies with part 68 of the FCC rules On the case of this equipment is a label that contains among other information the FCC registration number and ringer equivalence number for this equipment If requested this information must be provided to the tele phone company This equipment uses the following USOC jacks USOC RJ11C The REN is used to determine the quantity of devices that may be connected to the telephone line Excessive REN s on the telephone line may result in the devices not ringing in response to an incoming call In most but not all areas the sum of REN s should not exceed five 5 0 To be certain of the number of devices that may be con nected to the line as determined by the total REN s contact the telephone company to determine the maximum REN for the calling area If this equipment causes harm to the telephone network the telephone company will notify you in advance that temporary discontinuance of service may be required If advance notice isn t practical the telephone company will notify the customer as soon as possible Also you will be advised of your right to file a complaint with the FCC if you believe it is necessary The telephone company may make changes in its facil ities equipment operations or procedures that could affect the operation of the equipment If this happens the 5 2 5 1 4 Types of Ser
112. e rain gauge is factory calibrated to provide a contact closure to the flow meter for every hundredth of an inch 0 01 or 0 1 mm of rainfall Software in the flow meter stores this infor mation in memory and prints the accumulated data as a text line on the printer chart It also allows the printout to be expressed in metric You may if you wish provide a rain gauge of your own choice but to ensure compatibility with the flow meter s oper ating environment it must conform to the following specification e It must provide an isolated dry contact closure e It must be a normally open contact configuration e It must close for 100 ms 25 ms 150 ms with less than 2 ms contact bounce e It must provide a contact closure for every 0 01 or 0 1 mm of rainfall A cable assembly is available to connect a user supplied rain gauge to the flow meter More information about the rain gauge is available from the factory or the Rain Gauge Manual UMMA LLAMA E ISCO 674 Rain Gauge Figure 5 5 674 Tipping Bucket Rain Gauge 4220 Flow Meter Section 5 Options and Accessories 5 6 Isco Flowlink Software Teledyne Isco offers a proprietary software system for data acqui sition storage retrieval and analysis This software system Flowlink contains programs that allow 4200 series flow meters to store blocks of level and other data readings in the flow meter s memory You retrieve this stored data with either a laptop computer o
113. ear press Exit Program then Go To Program Step then press 1 SELECT OPTION e PROGRAM e e SETUP e PROGRAM is always the default If you press Enter the display will automatically advance to the next display which will ask you to select units of measurement If you select SETUP the fol lowing will appear SETUP OPTIONS EXIT TO QUIT e SET CLOCK e SITE ID e MEASUREMENT SETUP e If you press the right arrow key the following options will appear in this order on the display SETUP OPTIONS EXIT TO QUIT e STATUS ENABLE ALARM HYSTERESIS e 4220 Flow Meter Section 2 Programming 2 12 SETUP OPTIONS EXIT TO QUIT e OPTIONAL OUTPUTS e REPORT SETUP e SETUP OPTIONS EXIT TO QUIT e LCD BACKLIGHT LANGUAGE e PROGRAM LOCK e SETUP OPTIONS EXIT TO QUIT e LANGUAGE e PROGRAM LOCK e e PROGRAM e LANGUAGE may not appear on your machine This is intended primarily for export models as they are programmed in different languages Domestic models contain only English If you select SET CLOCK the following will appear YEAR MONTH DAY HOUR MIN XXXX XX XX XX XX Enter the year four digits the month 01 12 the day 01 31 the hour 01 24 and the minute 01 59 If you select SITE ID the following will appear SITE ID XXX You can select any suitable three digit number for the site identi fication If you sel
114. ect MEASUREMENT SETUP the following will appear You will have to use the right arrow key to bring all the options on screen MEASUREMENT SETUP e LEVEL READING INTERVAL e e DO PH READING INT MEASUREMENT SETUP DO PH READING INTERVAL e YSI 600 READING INT ERVAL is just off the screen LEVEL READING INTERVAL refers to how often the flow meter takes a level reading LEVEL refers to the level in the flow stream DO PH READING INTERVAL refers to the measurement of spe cific aspects of the flow stream other than amount 4220 Flow Meters support measurement of three different characteristics temperature pH the relative acidity or alkalinity of a solution and D O dissolved oxygen If you are using the Isco D O sensor or are sensing D O with the YSI 600 Sonde select as long a measurement interval as is practical for your application The reasoning is that the D O sensor is turned off between measurement intervals and this turned off period prolongs the life of the sensor 4220 Flow Meter Section 2 Programming YSI 600 READING INTERVAL refers to the YSI 600 Sonde The flow meter can measure several different aspects of the stream at the same time including pH D O temperature plus conduc tivity If you select LEVEL READING INTERVAL the following will appear LEVEL READING INTERVAL e CONTINUOUS 15 SEC 30 SEC 1 MINe 2 MIN 5 MIN 9 The LEVEL READING INTERVAL option is a way to cons
115. eeeaaeceseeeeeeaeeeeeaeeess 60 0603 218 YSI 600 to Isco 4200 6700 Adapter Cable cccccccsscccccesssccecsesssececesessececessaeeeeesessaeeeeseeees 60 0604 001 YSI 600 and Isco 674 Rain Gauge Y Connect Cable cccccccccccccseccecesesessnsssecceeesecceecseeeee 60 0604 002 This cable allows use of the YSI 600 Sonde and the Isco 674 Rain Gauge at the same time Use the following with Isco Mounting Rings in Round Pipe Installations Probe Carrier for D O probe and separate Temperature probe ccccesscsceseeenteeeeeesseeeees 60 3204 006 Mounting Rings B 2 4220 Flow Meter Appendix B Accessories List Probe Mounting Ring for 6 pipe ccccccsssscccessssececcessseeeeceseseeseceesseeeeeceseseeaeeceseeesaeseseeenaaees 60 3200 007 Probe Mounting Ring for 8 pipe c ccccccsssscecessssececeessseceecescseseeceseceeeaecsscseeseeceseseeaeeesseenaaees 60 3200 008 Probe Mounting Ring for 10 pipe ccccesscccessssececeseseneeeceecseeeeccseseeeaeceseseseecesseeeaaeeeseeenaaees 60 3200 009 Probe Mounting Ring for 12 pipe cccccsscccessssececeseseeeeeceseseeaecesseeeeeeseseseeeecesseeaaaeceseeenaaees 60 3200 010 Probe Mounting Ring for 15 pipe cccccsscccessssececesesecceecessseeseceesseeeaeceseseesecessseaaaeeseseeaaaess 60 3200 011 Scissors Ring for Pipes 16 diameter and larger Base Section with tabs for mounting up to three probes cccecssccessssnececeseseeeeeesseeeeaees 60 3004
116. ees 2 6 2 3 3 Step 3 Adjust Level Parameters 0 0 c cece ee eens 2 7 2 3 4 Step 4 Reset Totalizer na rrd uiaro ccc ee eens 2 8 2 3 5 Step 5 Sampler Pacing 0 ccc eee eens 2 8 2 3 6 Step 6 Sampler Enable 0 0 eens 2 9 2 3 7 Step 7 Alarm Dialout Mode 0 0 2 10 2 3 8 Step 8 Printer c dis cid hs deca an e lo dee a e waa hae Geeta anche 2 10 2 3 9 Step 9 Reports History 0 0 cece teens 2 10 2 4 Interpreting the Program Screens 0 cc ee ene 2 11 2 4 1 Operating Mode 0 ccc a E enns 2 11 2 4 2 Optional Outputs 0 0 ete nena 2 15 243 Step l Propran oc oes Soe ace Sse asec ee toe sep A a wanes a SE ee eM 2 24 2 4 4 Step 2 Flow Conversion Level to Flow Rate 000 08 2 29 2 4 5 Step 3 Parameter to Adjust 0 0 ccc eee eens 2 36 2 4 6 Step 4 Reset Totalizer 0 cette 2 42 2 4 7 Step 5 Sampler Pacing 0 ccc tte 2 42 2 4 8 Step 6 Sampler Enable 0 0 0 2 44 2 4 9 Step 7 Alarm Dialout Mode 0 0 cece eee nas 2 47 24 10 Step 8 Printer soes iee one ie a a os ect Sante eo beck then eee 2 50 2 4 11 Step 9 Reports History 0 0 ccc eee 2 52 Section 3 Flow Meter Installation 3 1 Introduction s euria eset a ied Beary Oa gE ee RM a 3 1 3 1 1 Preparation for Use 1 0 0 ccc eee n en nes 3 1 3 1 2 Installing the Desiccant Canister 0 0 cece eee 3 1 3 1
117. eet Level Installation Components x7 ma Palmer Bowlus S 1 Handle r Flume 2 Ring Base Bottom Assembly Parshall Flume Round Pipe Probe Mounted Ce in Recess Contact the factory or your Teledyne Isco Representative for additional information about the Street Level Installation system Figure 4 8 Typical Primary Device Installations 4 5 Completing the Probe Installation 4220 Flow Meter Section 4 Submerged Probe Installation Mounting hardware may have to be fabricated locally to allow the level sensor to be mounted at the correct location in the primary device The only requirements for custom mounting hardware are e The probe must be securely attached to the side or bottom of the flow stream e The cable must be tied down and led out of the flow stream in an orderly manner e The hardware be made from corrosion resistant materials It should be noted that the mounting rings may be used to install the probe in rectangular channels by simply putting right angle bends in them at the appropriate locations It should be noted that certain flume manufacturers produce flumes with built in cavities designed specifically for use with Isco submerged probe level sensors Typically these are Parshall or Palmer Bowlus flumes Contact the manufacturer for details on these flumes The submerged probe installation is finished by coiling any excess sensor cable and securing it using cable clamps or other
118. el chemicals are provided at the back of this manual CAUTION There have been reports of irritating fumes coming from the desiccant during regeneration While our attempts to duplicate the problem have been unsuccessful we still urge you to use caution e Use a vented oven in a well ventilated room e Do not remain in the room while the regeneration is taking place To regenerate the desiccant cartridge 1 Carefully snap it out of its bracket 2 Pull the silicone tubing from the end of the cartridge 3 Remove one of the end caps from the cartridge by twisting and pour the saturated desiccant into a metal ceramic or other heat resistant container 4 Identify the desiccant and heat it at the proper tempera ture two to three hours or until the blue or yellow color returns 5 Do not try to regenerate the desiccant inside the cartridge the cartridge is plastic and will melt 6 Refill the cartridge with the regenerated desiccant or with the extra desiccant provided in the accessory package 7 Replace the end caps Notice the filters in the end caps they keep small pieces of the desiccant material from falling out of the cartridge You can clean these filters from time to time using ordinary dish soap and water then allowing to dry 6 3 4220 Flow Meter Section 6 Maintenance and Service M Note Regeneration of the desiccators is extremely important Saturated desiccators let the flow meter draw moisture ins
119. en with this tool care must be exercised to prevent the cover from being dropped on the toes The 2 inch projection should be inserted into one of the holes in the cover the handle grasped with both hands and the cover lifted by straightening the legs which have been slightly bent at the knees 8 Other Precautions Other precautions which should be taken when entering a manhole are e Wear a hard hat e Wear coveralls or removable outer garment that can be readily removed when the work is completed e Wear boots or nonsparking safety shoes e Wear rubberized or waterproof gloves e Wear a safety harness with a stout rope attached e Do not smoke e Avoid touching yourself above the collar until you have cleaned your hands 9 Emergencies Every member of the crew should be instructed on procedures to be followed in cases of an emergency It is the duty of each crew chief to have a list of emergency phone numbers including the nearest hospital and ambulance service police precinct fire station and rescue or general emergency number D 3 4220 Flow Meter Appendix D General Safety Procedures D 2 Lethal Atmospheres in D 4 Sewers 10 Field Equipment The following equipment will be available for use Blowers Gloves Traffic cones Breathing apparatus Hard Hats Coveralls Harnesses First aid kits Manhole irons Emergency flashers Pick axes Flashlights Rain slickers Mirrors Ropes Gas detectors Safety vests Gas ma
120. ep will revert to the normal display shown previ ously The program consists of steps and substeps The steps are listed on the flow meter front panel Most steps contain several sub steps Generally you need to complete all the substeps before stopping or the flow meter will reject the changes you made for that step after it times out There are some exceptions The flow meter keeps in memory any changes that you made for the finished steps all substeps completed before stopping Most steps not finished when you stop will return to the previous selection Programming is done on the flow meter s keypad with prompts from the display The following sections describe the function of each key OFF and ON These two keys turn the flow meter off and on Go To Program Step Pressing this key lets you go directly to a particular program step without passing through all the steps of the entire program The display will ask you to enter the number of the step you want to program Enter the number by pressing one of the number keys There are nine program steps so numbers from one to nine are valid Exit Program Press this key when you want to leave the pro gramming mode and return to the normal operating mode Clear Entry This key lets you return to the previous entry for a program step if you have changed the entry but not yet pressed Enter Enter Program Step This key has two functions One is to enter a
121. er at the same time by using a special Y connect cable The YSI 600 Sonde can measure the following water qualities dissolved oxygen D O conductivity temperature and pH Conductivity measurements made by the sonde can be used to calculate specific conductivity salinity and total dissolved solids A brief description and specifications for the YSI 600 are printed in Section 5 You may also contact the factory or your Teledyne Isco representative More information on the sonde is found in the YSI 600 Manual shipped with each YSI 600 Sonde Assembled Sonde x il e Conductivity inside pH glass sensor pH reference Cover Removed Temperature D O sensor In this step you decide whether to reset the flow meter s internal flow totalizers If the installation is permanent you generally won t reset the totalizer If you are using the flow meter as a por table recording unit and move it from site to site you would gen erally reset the totalizer between sites It is common to use a flow meter with an Isco Automatic Waste water Sampler Typically the flow meter signals the sampler to take a sample after a certain volume has passed It might also occur after a certain condition or set of conditions has either changed or been met This step allows you to determine that 2 3 6 Step 6 Sampler Enable 4220 Flow Meter Section 2 Programming control There are several possible options DISABLE
122. erve power in battery powered installations If your installation is AC powered you can simply select CONTINUOUS If you select DO PH READING INTERVAL the following will appear DO PH READING INTERVAL e CONTINUOUS 15 SEC 30 SEC 1 MIN 2 MIN 5 MIN 9 Again this selection is offered as a means of saving battery power After selecting the appropriate parameter reading interval press Enter The Setup menu will reappear This time select YSI 600 READING INTERVAL from the menu The fol lowing display will appear YSI 600 READING INTERVAL CONTINUOQUS 15 SEC e30 SECee1 MINee2 MINeeS MINe After selecting the appropriate parameter reading interval press Enter The Setup menu will reappear This time select STATUS from the Setup menu Press Enter The following will appear MODEL 4220 HW REV XXXXXX SW REV X XX ID XXXXXXXXXXX HW REV refers to the hardware revision number SW REV refers to the software revision number ID is an identification number for the flow meter If you press Enter again the flow meter will display the system voltage SUPPLY VOLTAGE XX_X This value should be from 10 5 to 13 5 volts DC Note that if you do not press Enter after the first diagnostic menu appears the flow meter will automatically advance the display through the next two screens and finally revert to the Setup menu after a short time out YSI SOFTWARE RE
123. ery carefully A small warning disk is located in front of the transducer Do not remove the warning disk After cleaning reinstall the nose section and tighten the screws The mounting hole must be aligned with the grounding point Figure 6 3 Alignment of Grounding Point 6 3 4 Cable Inspection Periodically inspect the submerged probe cable for wear Damaged cables can affect the operation of the probe particu larly if the reference port vent tube inside the cable is collapsed or blocked Damaged cables cannot be spliced or repaired suc cessfully and should be replaced If the submerged probe cable is damaged you must replace the probe assembly as the probe cable amplifier and connector are a factory sealed unit that cannot be repaired Keep connectors clean and dry In permanent installations such as treatment plants for example install the cables so they are not at risk of damage resulting from other activity taking place in the area In temporary installations do not leave cables lying around where they may be run over by heavy equipment Do not leave extra cable lying around in the flow stream where it can trap debris In permanent installations cables repeatedly subjected to rough environments will fail and should be installed in conduit for pro tection The conduit will have to be large enough to pass the M S connectors as you cannot remove or replace them CAUTION Avoid putting heavy pressure on the submerge
124. es 0 0 0 cece eee eee enes 5 23 5 11 4 Probe Installation 0 0 cette eens 5 24 5 11 5 Probe Operation and Precautions 0 00 cece eens 5 24 5 11 6 Calibrating the D O Probe with a Flow Meter 5 26 5 12 Installation of Parameter Probes in Mounting Rings 4 5 27 5 13 The YSI 600 Multiple Parameter Sonde 0 00 5 27 5 14 Mechanical Totalizer 0 0 cece cette nen e eee 5 28 Section 6 Maintenance and Service 6 1 Routine Maintenance and Minor Service 000 cee cee eee eee eens 6 1 6 1 1 Care of the Flow Meter Case 0 0 ccc eee eens 6 1 6 1 2 Care of the Case Seal 0 kee ene n eens 6 1 6 1 3 Preventing Moisture Damage 0 cece eee eee 6 1 6 2 Reactivation of the Desiccators 0 0 cette eens 6 2 6 2 1 Regenerating the Internal Case Desiccant 00 000 c eee eee 6 2 6 2 2 Regenerating the External Desiccant Cartridge 6 3 6 3 Care of the Submerged Probe and Cables 0 0 e cece eee eens 6 4 6 3 1 Low Maintenance 0 ccc eee e ene e eens 6 4 6 3 2 Cleaning the Submerged Probe Without Disassembly 6 5 6 3 3 Disassembling the Probe for Cleaning 0 0 00 cee eens 6 5 6 3 4 Cable Inspection 0 0 cc eee E n nes 6 6 6 4 Maintenance of the Printer 0 0 0 0 cee eee nes 6 7 6 4 1 Changing the Roll of Paper 0 0 0 ccc cett
125. eter also has an input port for measurements other than level This is the Parameter Port Here you can sense such variables in the flow stream as temperature pH the acidity or alkalinity of a solution and D O dissolved oxygen in the flow stream You can have either pH with temperature D O with temperature or temperature alone The 270 D O module is no longer available from Teledyne Isco 2 7 4220 Flow Meter Section 2 Programming Figure 2 1 The YSI 600 Sonde 2 8 2 3 4 Step 4 Reset Totalizer 2 3 5 Step 5 Sampler Pacing The port is not dedicated to a particular sensor except through programming You can change the sensor For example you can change from a pH probe to a D O sensor if you change the pro gramming Selection of one parameter will keep the other from showing up on the menus Note however that it is possible to measure several different stream conditions including pH and D O at the same time with the YSI 600 Sonde The YSI 600 Sonde The YSI 600 Sonde is a multi purpose water quality mea surement device It is intended for use in research assessment and regulatory compliance The sonde attaches to the modified RAIN GAUGE connector on the 4220 Flow meters having only a 4 pin rain gauge connector will not support the YSI Sonde If you wish to upgrade your flow meter to use this system contact the factory Note that you can have both the YSI 600 Sonde and the Rain Gauge connected to the flow met
126. eturn the instrument to Teledyne Isco and Teledyne Isco will pay surface transportation to return the repaired instrument to the customer Teledyne Isco will not pay air freight or customer s packing and crating charges This warranty does not cover loss damage or defects resulting from transportation between the customer s facility and the repair facility The warranty for any instrument is the one in effect on date of shipment The warranty period begins on the shipping date unless Teledyne Isco agrees in writing to a different date Excluded from this warranty are normal wear expendable items such as pH sensors charts ribbon lamps tubing and glassware fittings and wetted parts of valves and damage due to corrosion misuse accident or lack of proper maintenance This warranty does not cover products not sold under the Teledyne Isco trademark or for which any other warranty is specifically stated No item may be returned for warranty service without a return authorization number issued by Teledyne Isco This warranty is expressly in lieu of all other warranties and obligations and Teledyne Isco specifically disclaims any warranty of merchantability or fitness for a particular purpose The warrantor is Teledyne Isco 4700 Superior Lincoln NE 68504 U S A This warranty applies to the USA and countries where Teledyne Isco does not have an authorized dealer Customers in countries outside the USA where Teledyne Isco has
127. evel by responding to changes in hydrostatic pressure against the probe s sensing element The probe contains an IC integrated circuit differential pressure transducer This transducer provides an output signal that changes proportionally to the pressure placed against it by the flow stream The 4220 converts this signal to the flow rate with level to flow rate conversion formulas or tables characteristic of the primary device at the site The transducer in the submerged probe detects pressure with a small stainless steel diaphragm that transfers pressure to a silicon diaphragm containing a resistance bridge Pressure against one side of this diaphragm causes it to flex slightly This flexing causes the resistors on one side of the bridge to stretch while the resistors on the other side of the bridge compress The result is an unbalance in the current across the bridge that is proportional to the increase of hydrostatic pressure caused by an increasing level in the flow stream This bridge is fed from a con stant voltage source so any change in its output is a result of hydrostatic pressure against the transducer N CAUTION You may need to disassemble the submerged probe for clean ing If you do do not touch the metal diaphragm inside the probe with either your fingers or tools Deforming the dia phragm even slightly may ruin the transducer Flush the dia phragm with gently running water only The inner face of the transducer disk
128. flow meter when programming Decimal Point This key lets you enter a decimal point into a numeric value when programming On flow meters equipped with the optional modem only you can use this character as a comma delay when entering dialout numbers Arrow keys These keys referred to as the left and right arrow keys let you select a programming option by moving across the menus shown on the second line of the display key This key lets you enter a plus or minus to a quantity entered Its most common use is in entering values for the equation a method of flow conversion On flow meters equipped with the optional modem only you can use this character as a dash when entering dialout numbers To start programming turn on the flow meter and wait for the display to settle Then either press the Enter Program Step key generally referred to as Enter or the Go To Program Step key The display will change to two lines of text the first line describes the step you are programming and the second line shows the choices available One choice shown will be flashing The flashing indicates that this is the current one held in the memory If you are satisfied with this choice just press Enter and the flow meter will advance to the next step 2 3 4220 Flow Meter Section 2 Programming 2 4 If you want a different choice from the one that is flashing you can move across the display by using the left and right arrow keys Each ti
129. from the flow meter Current consumption in standby condition is approximately 10 mA In alarm current increases to 190 mA You can connect as many as four alarm boxes to a flow meter if the flow meter is powered from the AC line Do not use the alarm box if your flow meter has a modem or uses Flowlink software through either a modem or laptop computer Use the alarm box with caution in battery powered installa tions as it will significantly increase power consumption In standby condition an alarm box consumes about one ampere hour of battery capacity in four days or reduces capacity approximately 25 In alarm condition one alarm box will com pletely discharge a fresh 4 Ah battery in 21 hours Teledyne Isco recommends using only one alarm box in a battery powered installation and you can expect to change the battery more often 5 12 5 7 1 Installation 5 7 2 Wiring to a 4200 Series Flow Meter 5 8 Parameter Sensing with Isco 4200 Series Flow Meters 5 8 1 Installation of Parameter Probes 4220 Flow Meter Section 5 Options and Accessories The High Low Alarm Relay Box is enclosed in a high strength plastic box and is easily installed Mount the unit with cor rosion resistant hardware through the 2 holes in the stainless steel mounting plate attached to the case Two threaded holes in the case allow the use of either 2 conduit fittings or com pression bushings While the alarm box is suitable for use in damp
130. gas ide orless odorless blood Uncon with illuminat flue gas tasteless sciousness in ing gas products Flammable 30 min at 0 2 of com Poisonous to 0 25 Fatal bustion in 4 hours at motor 0 1 Head exhausts ache in few Fires of hours at 0 02 almost any kind Carbon CCly Heavy ethereal 5 3 Intestinal 1 000 100 At bottom Industrial Detectable Tetra Chl odor upset loss of to wastes odor oride consciousness 1 500 solvent at low concen possible renal cleaning trations damage respi ratory failure Chlorine Cl Irritant Yel 2 49 Irritates respi 4 1 At bottom Chlorine Detectable low green color ratory tract cylinder odor at low Choking odor Kills most ani and feed concentra detectable in very mals in a very line leaks tions low concentra short time at tions Non flam 0 1 mable Formal CH20 Colorless pun 1 07 Irritating to the 10 7 0 73 0 Near bottom Incom Detectable dehyde gent suffocating nose plete com odor odor bustion of organics Common air pollut ant fungi cide Gasoline C5H12 Volatile solvent 3 0 Anesthetic 4 000 1 000 13 60 At bottom Service 1 Combusti to Colorless Odor to effects when to stations ble gas indi CgH20 noticeable at 4 0 inhaled Rap 7 000 garages cator 0 03 Flamma idly fatal at storage ble 2 4 Danger tanks 2 Oxygen ous for short houses deficiency exposure at 1 1 indicator to 2 2 Hydrogen Hy Simple asphyxi 0 0
131. hat will keep the backlight on for approximately two minutes after you press a key Each time you press a key the timer is restarted so the backlight will never go off as long as you continue to program the flow meter with keystrokes coming less than two minutes apart At the end of programming the backlight will go out and will stay out until you start to program again This feature is designed to conserve battery power by de ener gizing the backlight when it is not needed The backlight is still available if it is necessary to program in a dark environment such as a manhole We recommend using this selection if the flow meter is battery powered but installed in an environment where the lighting is poor CONTINUOUS will cause the backlight to be lit continuously Where the flow meter is powered by an AC power supply battery life considerations do not intervene If the backlight makes the display easier to read use it Do not use CONTINUOUS in any installation that is battery powered as it will cause rapid dis charge of the battery OFF will keep the backlight feature turned off under all circum stances Select this option for maximum battery life in installa tions where there is sufficient ambient light to read the display without the backlight feature Press Enter The SETUP menu will return This time move the flashing cursor from LCD BACKLIGHT to LANGUAGE When LANGUAGE appears on your display you may select an alternat
132. he glass mono electrode and the solution slowing or halting the response altogether The pH Sensor operates satisfactorily mounted either horizon tally or vertically in the stream However horizontal mounting is more secure and presents less of a debris trap e Simple suspension of the probe is not recommended particularly in streams of high velocity or those that carry debris If you mount the pH probe vertically mount it securely Do not just hang it from the top of the pipe by its cable Suspending the probe in the stream is not stable For horizontal mounting the probe fastens to a sensor carrier that snap fits to an Isco mounting ring The mounting rings fit various diameters of round pipes 15 diameter and smaller For larger pipes use the Isco Universal Mounting Ring For installation details refer to the instruction sheet supplied with the mounting ring The mounting rings are held in place by the outward force of spring pressure in the smaller sizes and by a screw arrangement in the larger sizes After mounting the probe in the ring or strap route the cable out of the stream so it will not trap debris that could clog the sewer 5 18 Figure 5 8 pH Parameter Module 4220 Flow Meter Section 5 Options and Accessories Mount the pH Module within 25 feet of the probe but in a location higher than the highest anticipated level for the flow stream The amplifier box is sealed and will withstand tem porary submersion bu
133. he ring in the pipe by compressing it Press inward on both sides and slide the ring into the pipe Route the sensor cable out of the stream and secure it in position by placing the ties through the holes in the mounting ring and then locking them around the cable as shown To prevent debris from catching on the cable it is important to attach the cable to the mounting ring so it offers as little resistance to the flow as possible Figure 4 4 Spring Ring Preparation 4 5 4220 Flow Meter Section 4 Submerged Probe Installation Figure 4 5 Mounting Ring in a Round Pipe 4 6 CAUTION Make sure the sensor cable is securely fastened along the back downstream edge of the ring Otherwise the sensor may provide inaccurate level readings under conditions of high velocity Do not overtighten the plastic cable ties they should be tight ened just enough to secure the cable in place without greatly indenting the cable Overtightening the plastic ties may col lapse the reference tube in the cable blocking it The spring ring may need anchoring Under conditions of high velocity greater than 5 feet per second or 1 5 meters per second the ring may not have sufficient outward spring force to maintain a tight fit inside the pipe The ring may start to lift off the bottom of the pipe in a waving fashion or may even be carried downstream This problem is more prevalent in the larger diameter pipes 10 12 and 1
134. hen write a simple program to retrieve this data periodically or you can do it inter actively using a terminal program Command Line Use the INTERROGATOR connector The lines of text contain the port values for each port that is turned on The DATA command will use a special command response protocol The following table provides the ASCII codes for port types and standard units of measure Table 2 1 ASCII Output Codes Code Parameter Units DE Description String ID Unit specific identifier Unsigned long MO Model String Tl Time since 1900 Days BV Battery Voltage Volts LE Level Meters LSI Level Signal Strength 0 100 FL Flow Cubic meters per second VO Volume Cubic meters FV Forward volume Cubic meters RV Reverse volume Cubic meters SV Sampler Enabled Volume Cubic Meters RA Rain rolls over every 255 tips Tips CR Current day s rain tips since Tips midnight PR Previous day s rain tips since Tips midnight PH pH pH units DO Dissolved Oxygen Milligrams per liter TE Temperature Degrees Celsius YPH YSI 600 pH pH units YDO YSI Dissolved Oxygen Milligrams per liters 4220 Flow Meter Section 2 Programming Table 2 1 ASCII Output Codes Continued Code Parameter Units YCO YSI 600 Conductivity Millisiemens per centimeter YSP YSI 600 Specific Conductance Millisiemens per cen
135. her with a cable The flow meter sends flow pulses to the sampler The sampler uses these flow pulses as counts When an appropriate number of flow pulses has been received by the sampler it will take a sample If you select step 5 the following will appear SAMPLER PACING e DISABLE VOLUME FLOWLINK e CONDITIONAL VOLUME will not appear if the flow meter is measuring level only or is only being used for parameter monitoring The Flowlink menu option will not appear unless Flowlink software is installed and pacing has been downloaded from Flowlink If you select DISABLE for sampler pacing the flow meter will be effectively disconnected from the sampler The sampler will run its program as if the flow meter weren t there Selection of DISABLE will also cause the flow meter to advance to the next Program step If you select VOLUME for sampler pacing the fol lowing will appear SAMPLER PACING ENTER PACING VOLUME XX XXXX CF e Other units of measure may appear here The range for pacing is max flow divided by 100 minimum or 10 000 times max flow maximum If Flowlink appears for sampler pacing the operation of sampler pacing has been determined by choices made in Flowlink Isco s proprietary data acquisition and storage software Flowlink con 4220 Flow Meter Section 2 Programming trols the flow meter remotely via phone lines and a modem or locally with a laptop computer and cab
136. his will prevent any water from entering the vent tube for the submerged probe in case of accidental submersion of the flow meter Vinyl tubing can be purchased locally or from Teledyne Isco If you use the Quick Disconnect Box to extend the distance between the flow meter and the probe you should attach the vinyl tubing to the desiccator cartridge vent on the Quick Dis connect Box You can install the flow meter as far as 1 000 feet from the sub merged probe if you use the Quick Disconnect Box Otherwise the flow meter must be located within 75 feet of the submerged probe as this is the maximum length of cable available to connect the submerged probe to the flow meter 25 feet supplied with the submerged probe plus 50 feet maximum with one of the 4220 Flow Meter Section 3 Flow Meter Installation submerged probe extension cables Do not try to patch extension cords If you need to operate at greater lengths use the Quick Disconnect Box To use the Quick Disconnect box you will need a cable of the correct length with an M S connector to plug into the flow meter Teledyne Isco will build the cable with the proper connector on one end and stripped wire ends on the other as a special order You can install the cable in conduit and connect the conduit to the Quick Disconnect Box or you can run the cable in the open to the Quick Disconnect Box and attach it to the box with a water proof compression bushing available from Teledyne Isc
137. ide exposing both mechanical and electronic components to water and or chemical contamination The air in many installations contains fumes that will form acids in the presence of moisture These acids may corrode electrical components particularly connectors and circuit boards Moisture drawn into the submerged probe s reference port vent tube will disable the probe Unseen damage caused by moisture will eventually ruin the flow meter For maximum equipment life and reliability inspect the desiccators regularly and regenerate them when neces sary 6 3 Care ofthe Submerged The submerged probe and its cable require little periodic mainte Probe and Cables nance unless there is a great deal of debris in your flow stream Certain materials that swell when wet such as sawdust can clog the ports of the probe blocking the hydrostatic pressure of the stream from reaching the transducer The submerged probe pressure transducer is in a stainless steel housing filled with sil icone oil The transducer is directly behind a thin stainless steel dia phragm that faces the nose section of the probe If you remove the nose section from the submerged probe to clean it this dia phragm will be exposed Read the following sections carefully before attempting to disassemble the probe N CAUTION If you disassemble the submerged probe for cleaning do not touch the stainless steel diaphragm with your fingers or tools The diaphragm is very thin
138. if you do not have a modem The flow meter will automatically advance to the next step More information about the modem can be found in Section 5 If you have the modem installed and select step 7 the following will appear ALARM DIAL OUT e DISABLE e CONDITIONAL e e STORM e FLOWLINK e If you select DISABLE this option will be inactivated until you change the selection later The program will advance to the next step If you select STORM the flow meter will request definitions similar to those for STORM in sampler enable The following will appear LEVEL GREATER THAN X XXX FT or other units of measure Then RAINFALL AMOUNT X XX INCHES or other units of measure Then RAINFALL TIME PERIOD e15 MIN 30 MINe 1 HRee2HRee4HRe If you press the right arrow key several times the following times will appear RAINFALL TIME PERIOD 6HR e S8HRee12HRe 24 HR 48 HR 72HR The intervals above are the periods of time over which the rainfall occurs The amount of rain entered in the previous step and detected by the rain gauge must fall during the time interval chosen from this menu before the flow meter recognizes the event as a storm The next menu defines the interval that must pass between storm events TIME SINCE LAST RAINFALL DAYS X allowable entry of 1 7 If you select CONDITIONAL for alarm dialout the following will appear CONDITION e LE
139. igure by the average current of the flow meter say 15 mA you will have 4 000 15 266 67 hours Divide this number by twenty four to get days 266 67 hours 24 11 1 days As a margin of safety we suggest you subtract 10 from this number 100 5 for 95 capacity and 5 for a reserve at the end of discharge 11 1 1 1 10 days This is the battery expectancy for a nickel cadmium battery with a 15 mA continuous average drain with a 10 derating factor You can use the same method to calculate for lead acid batteries except the current will be 6 500 mA and the period correspond ingly longer in this case a little over 16 days You can run the full number of days calculated without derating if your batteries are new and at 100 capacity but you will leave yourself no safety factor if you are in error on either of these assumptions Remember if the battery fails there will be a period of time during which no measurements will be taken and no data stored if you are also using Flowlink software 1 7 1 Current Draw 4220 Flow Meter Section 1 Introduction Batteries lose capacity as they age Capacity also drops off as temperature falls Low temperatures make less capacity available due to the slowing of the chemical reactions while high temperatures accelerate the deterioration of battery plate sepa rators particularly if they are aged Note also that nickel cadmium batteries show fairly rapid rates of self dis
140. ing condi tions by varying output rates The External 4 20 mA Output Interface has its own case and AC power supply Commercial power 120 VAC must be available for this device Battery operation 12 VDC is not feasible due to voltage and current demands It comes with a line cord con nectors and two interconnect cables One cable has 6 pin M S connectors on both ends This cable connects the input of the 4 20 mA Output Interface to the flow meter Interrogator connector The other cable has a three pin plug on it that connects to the output connector of the 4 20 mA Output Interface This cable ends in three pigtailed wires you connect to the equipment you want to control with the 4 20 mA Output Interface Table 5 1 4 20 mA Output Interface Specifications Power 120 VAC 8 Amp Output Connector 3 pin male plug Pin A current out Pin B current out Pin C not used Output Accuracy At 72 F 22 C Full Oper Range 0 25 of full scale 0 5 of full scale Operating Temperature Range Resolution 0 to 140 F 18 to 60 C 0 1 of full scale Input Connector 6 pin male M S Pin B pulse input Pin F pulse input Pins A C D E NC Isolation Output current optically isolated from flow meter I Fusing Amp internal on AC line Adjustments Calibration Factory calibrated when used within range no adjustment needed Maximum Distance 1 500 ft 457 3 m u
141. inter s chart speed the flow meter will draw a signif icant amount of power from the sampler s battery In such cases it is better for the flow meter have its own battery 3 3 4220 Flow Meter Section 3 Flow Meter Installation M Note Do not attempt to run a sampler from a power source installed on a flow meter While a flow meter will operate satisfactorily powered from a sampler the reverse is not true The sampler s pump draws heavy current particularly on startup The flow meter to sampler connect cable cannot carry such currents If you are using a single power source for a flow meter sampler combination always install the power supply on the sampler 3 2 3 Isco Nickel Cadmium Teledyne Isco offers a 4 ampere hour 12 volt rechargeable Battery nickel cadmium battery pack to power the flow meter Teledyne Isco packages this battery specifically for use with Isco flow meters and samplers Refer to the Power Products Guide accom panying this manual for detailed information about this battery and the procedure for charging it 3 2 4 Attaching the Install the battery on the top of the flow meter case and attach Nickel Cadmium its connector to the 12 VDC connector on the side of the flow Battery meter Place the battery with its cable pointing toward the right side of the cabinet Secure the battery by stretching the two rubber draw catches on top of the flow meter until they slip over the two metal U brackets mounted on the en
142. ion of the submerged probe and setup procedure for the unit The flow meter is shipped with a roll of paper installed and a standard program in the system memory also called the default program This program exists to test the flow meter at the factory and also because the computer must always have some thing programmed into it You will generally program the flow meter differently for your installation You should familiarize yourself with the programming procedure and practice working through the program on the flow meter to become comfortable with programming You can program the unit in the shop rather than at the job site with the exception of the level adjustment if you want This will minimize the possi bility of dirt and moisture getting inside the flow meter at the installation If the unit is new at this time you can install the desiccant can ister It is provided in the accessory package and looks like a small flat can with little holes in it Open the flow meter case lid Note the small clamp that resembles a bottle cap opener located near the bottom right hand corner of the case lid Install the des iccant canister by pressing it under this bracket with its viewing window lined up with the circular hole in the bracket Make sure the clamp is fully engaged over the canister The par ticles inside the desiccant window should be blue If the particles are pink the desiccant is saturated and you will need to regen erate
143. ions 1 Remove the four Phillips screws on the front panel Care fully pull the panel away from the case to access the inte rior 2 Remove the lower metal shield by sliding it downward freeing the tabs from their slots This exposes the power supply PCB Figure 5 2 Flow meter with front panel removed 5 9 4220 Flow Meter Section 5 Options and Accessories Figure 5 3 Removing the lower shield 3 In the lower right hand corner of the power supply PCB disconnect the red wire s spade connector from J3 and con nect it to J1 A rr Connect to J1 Disconnect from J3 Figure 5 4 Type E modification 4 Replace the metal shield and carefully reattach the front panel to the flow meter case 5 10 4220 Flow Meter Section 5 Options and Accessories 5 5 Tipping Bucket Rain A Tipping Bucket Rain Gauge is available from Teledyne Isco for Gauge use with 4200 Series Flow Meters The gauge connects to the flow meter by a cable terminated in an M S connector This con nector plugs into the Remote Printer Rain Gauge connector on the case A Y connect cable is available that allows use of both the rain gauge and a YSI 600 Multi Parameter Sonde at the same time You can connect extra cable user supplied between the rain gauge and the factory supplied cable as long as you do not exceed a maximum total length of 1 000 feet Use 18 AWG wire or larger Do not cut the M S connector from the cable Th
144. is referenced to the atmo sphere through the internal vent tube that runs the full length of the probe s cable The outer face is subjected to the pressure exerted by both the flow stream and the atmosphere The dif ference between the two pressures exerted on the diaphragm is the hydrostatic pressure CAUTION Any obstruction in the reference port of the cable could cause faulty level readings Moisture in the reference port can lead to permanent internal damage to the probe Keep the reference port free of debris and moisture The output from the transducer is low and the impedance is high so an in line amplifier boosts the signal to make sure the flow meter can still detect it even when the submerged probe and the flow meter are separated by some distance The amplifier is encapsulated in the box mounted on the submerged probe cable near the connector 4220 Flow Meter Section 1 Introduction Figure 1 1 Submerged Probe Level Sensor with Standard Tip 1 4 Software Upgrades 1 5 Controls Indicators and Connectors The level sensor is intended for operation in depths from 1 inch to 10 feet maximum Software for the 4200 Series Flow Meters can be upgraded without the unit being returned to the factory With Flash Memory software updates can easily be installed in the field with a disk a computer and a cable For more information about installing software upgrades in the 4220 Flow Meter see Section 6 The controls
145. isconnect Box 3 8 Rain Gauge 5 11 Type E Interface 5 8 Optional Outputs Analog 2 15 5 4 Serial 2 18 5 4 Output Signals 1 2 P pacing non lsco equipment 5 8 Index 1 4220 Flow Meter Index Index 2 Parameter Probes 5 13 D O Dissolved Oxygen 5 21 pH Probe 5 15 Temperature Probe 5 14 YSI 600 Sonde 5 27 Parameter Sensing 5 13 pH Probe 5 15 Power Sources 3 3 AC Power Supplies 3 5 External 12 Volt DC Power 3 6 Isco Sampler 3 3 Lead Acid Battery 3 5 Nickel Cadmium Battery 3 4 Primary Devices head measuring points 4 9 installing probe in 4 9 Program Screens 2 11 Programming 2 3 Programming Steps Description 2 5 Step 1 Program 2 24 Step 2 Flow Conversion 2 29 Step 3 Parameter to Adjust 2 36 Step 4 Reset Totalizer 2 42 Step 5 Sampler Pacing 2 42 Step 6 Sampler Enable 2 44 Step 7 Alarm Dialout 2 47 Step 8 Printer 2 50 Step 9 Reports History 2 52 Programming Worksheets C 1 Q Quick Disconnect Box 3 8 R Rain Gauge 5 11 Replacement Parts A 1 Replacement Parts List A 4 Reports 2 21 Ribbon Replacement 6 9 S Safety Considerations 3 10 Safety Information D 1 Sampler Interface 3 11 Scissors Ring 4 7 Serial Output 2 18 5 4 ASCII Codes 2 18 Service and Troubleshooting CMOS Circuitry 6 15 Disassembling the Flow Meter 6 10 Display Warnings 6 12 Fuses 6 11 Getting Help 6 13 Inspection Protocol 6 14 Preliminary Steps 6 13 Software u
146. ith one fourth of the capacity of a standard battery it cannot power the flow meter for an extended period of time 3 2 8 Attaching the Power Mount the power supply on top of the flow meter cabinet the Supply same way as described for the battery Secure the power supply with the two rubber draw catches pulled over the brackets on the ends of the power supply Attach the short cable with the smaller connector to the top connector on the right side of the flow meter case Connect the longer cord with the plug on it to an AC outlet Refer to Power Products Guide for details concerning charging the batteries with the power pack 3 2 9 External 12 Volt DC You can also power the flow meter from an external 12 VDC Power source such as an automotive motorcycle or marine battery Many people have found that a deep cycle marine RV battery is particularly well suited to this application However you will have to mount batteries of this type externally as they are too large to fit on top of the flow meter 3 6 4220 Flow Meter Section 3 Flow Meter Installation Teledyne Isco offers a special optional connect cable to power the flow meter from a separate battery Mount the battery securely in an upright position so it will not inadvertently tip over or be at risk of having its cable pulled off CAUTION Be sure of proper polarity before attaching clips to the battery Never attach the flow meter to a source of unknown polarity or voltag
147. ithout notice Contact Information Customer Service Phone 800 228 4373 USA Canada Mexico 402 464 0231 Outside North America Fax 402 465 3022 Email IscoCSR teledyne com Technical Support Phone Toll Free 866 298 6174 Samplers and Flow Meters Toll Free 800 775 2965 Syringe Pumps and Liquid Chromatography Email IscoService teledyne com Return equipment to 4700 Superior Street Lincoln NE 68504 1398 Other Correspondence Mail to P O Box 82531 Lincoln NE 68501 2531 Email IscoInfo teledyne com Revised September 2012 General Warnings Hazard Severity Levels Before installing operating or maintaining this equipment it is imperative that all hazards and preventive measures are fully understood While specific hazards may vary according to location and application take heed of the following general warnings WARNING Avoid hazardous practices If you use this instrument in any way not specified in this manual the protection provided by the instrument may be impaired AVERTISSEMENT Eviter les usages p rilleux Si vous utilisez cet instrument d une mani re autre que celles qui sont specifi es dans ce manuel la protection fournie de l instrument peut tre affaiblie cela augmentera votre risque de blessure This manual applies Hazard Severity Levels to the safety alerts These three levels are described in the sample alerts below CAUTION Cautions identify a potential hazar
148. ity etc the flow meter cannot do this by itself nor does it occur automati cally Sampler Enable means that in a combination flow meter sampler pair the flow meter controls the sampler s ability to run its own program The difference between step 5 sampler pacing and step 6 sampler enable is that in sampler pacing the flow meter merely sends flow pulses to the sampler from time to time The sampler counts these flow pulses to determine when to take a sample according to its own programming With sampler pacing the sampler is always enabled With sampler enabling the flow meter can actually stop operation of the sampler The sampler is still set up to run its own program but the inhibit enable line from the flow meter will determine when and whether the sampler runs its program This feature is useful for storm water runoff monitoring applications where it may be necessary for the flow meter sampler pair to have to wait a long time between storm intervals Again changing or meeting a condition or set of conditions triggers the enabling The conditions that can be used for sampler enabling are similar to those used for sampler pacing level flow rate rainfall temperature dissolved oxygen pH or a 2 9 4220 Flow Meter Section 2 Programming 2 10 2 3 7 Step 7 Alarm Dialout Mode 2 3 8 Step 8 Printer 2 3 9 Step 9 Reports History combination of these conditions The YSI 600 Sonde provides several measureme
149. ivated or not While 4 20 mA applications are generally made in installations with com mercial power available Teledyne Isco suggests the following for those who have a 4 20 mA output in a battery powered installation Use with battery powered flow meters only if eThe battery is continuously on charge for example with a Solar Panel Battery Charger The battery is very large such as a deep cycle or marine type battery or an Isco 35 Ampere hour lead acid battery Use only one 4 20 mA output Keep in mind that programming choices also affect power consumption Use minimum settings on the flow meter wher ever possible See Section 1 Table 1 5 Even with these circumstances you may expect significantly shorter charge life from your battery To determine the effect of this extra current draw on battery life please refer to the sec tion How to Make Battery Calculations at the end of Section 1 The following menus determine the behavior of the 4 20 mA current outputs If you select ANALOG OUTPUT another term for the 4 20 mA Output and the flow meter is equipped with the optional internal board or the 4 20 mA external accessory has been turned on RANGE SMOOTHING and MANUAL CONTROL will appear ANALOG OUTPUT e EXTERNAL 4 20 MA e RANGE e SMOOTHING CAUTION If you do not have the proper hardware installed and you press 4 2 0 and the number of analog outputs is not zero the external 4 20 mA con
150. keypad and display There are nine program steps that control all aspects of the flow meter s operation Teledyne Isco ships the flow meter with a program already installed that is called the default program You can use this program as an example to see the flow meter s capabilities Note that the default program is just to test the unit at the factory The flow meter s internal computer must always have something programmed into the unit so that becomes the default program Your flow situation will usually require other programming choices The text provided with each screen explains the reasons for the various menu options The display is a two line forty character per line liquid crystal LCD It has a backlight feature for easy viewing in low light sit uations The display has three different operating modes normal programming and messages In the normal mode the display shows such things as level flow rate total flow parameter measurement etc In the programming mode the top line of the display shows each step as you work through the program while the bottom line shows the choices available for that step In the message mode the display provides instruc tional information such as how to leave programming or what to do if you have entered a number that is out of range Following is a normal display on the flow meter This is typical of what the flow meter will display when it is in the normal oper ating mode and you a
151. le In any event if the sampler pacing definition is controlled by Flowlink it can only be changed through Flowlink If you select CONDITIONAL for sampler pacing the following will appear CONDITION e LEVEL FLOW RATE e RAINFALL D O pH TEMPERATURE YSI pH YSI DO YSI CONDUC TIVITY and YSI TEMP may also appear Note that all the con ditions shown above are in parentheses Which ones actually appear depends on your previous programming selections At least one of these options will be available to you Pressing the right arrow key may be necessary to bring all items onto the display provided they are available for use LEVEL will only appear if the flow meter is set up to measure level or flow RAINFALL D O pH and TEMPERATURE measurement require the appropriate sensor probe be used with the flow meter Remember that only one parameter condition D O or pH can be measured by the flow meter at a time unless you use the YSI 600 Sonde RAINFALL can appear if you have a rain gauge attached to the flow meter TEMPERATURE can be measured alone or with either parameter D O and or pH may not appear on the menu depending on selections made in step 1 If you do not see the item you need return to step 1 and recheck your programming If you did not make the proper selections there certain menu options will not appear here as they would have been locked out The YSI 600 condi
152. lect the baud rate and the frequency of transmission You can then write a simple program to retrieve this data periodically or you can do it interactively using a ter minal program This option SERIAL OUTPUT is discussed in detail in Section 2 Teledyne Isco offers a 300 baud output on the RAIN GAUGE con nector This port provides ASCII level and flow rate data for remote transmission to any ASCII compatible equipment Every 15 seconds the flow meter transmits a line of data which includes level units of level measurement percentage of maximum flow rate maximum flow rate a total flow value units of flow sample number bottle number text time and date If you are using the flow meter with an Isco sampler the data line also includes an indication of a sampling event You can transmit this data line to a computer or to a locally con nected within 250 feet device capable of interpreting serial data such as a video display terminal or a printer The specifica tions for this serial data output are as follows 300 baud 7 data bits 2 stop bits even parity The printed or displayed line con tains 110 characters and will appear similar to the following 01 409F 100 00 2 500 0 CFS 0001533 0 CF 00 00 90 DEGREE V NOTCH WEIR 000 0 90 04 04 02 31 48 The last two characters not displayed are a CR carriage return and a LF line feed The large gaps between some of the words indicate extra character spaces which are
153. ll keep references to pH from showing up on subsequent menus TEMPERATURE UNITS e DEG F e DEG C e e NOT MEASURED This step sets up measurement of the temperature of the flow stream You must have an Isco Temperature Probe or approved equivalent attached to the flow meter s Parameter Port The temperature probe contains a thermistor and needs no further calibration Measurement is in degrees Celsius or degrees Fahr enheit If you are not using the temperature probe you would select NOT MEASURED for this step Note that if you are using either the pH or D O probe temper ature must be measured the NOT MEASURED option will not even appear YSI Sonde The following series of menus concerns the use of the YSI 600 Multi Parameter Sonde This probe allows you to measure several different characteristics of a flow stream at the same time The YSI 600 Sonde attaches to the Rain Gauge con nector on the 4220 This connector must be a special modified connector with nine pins 4220 Flow Meters with 4 pin Rain Gauge connectors cannot support the YSI 600 It is necessary to return the flow meter to the factory for modifications if you wish to use a YSI 600 Sonde In addition to the connector there are significant inter nal modifications to the flow meter s electronics and software You can use both the YSI Sonde and a Rain Gauge on flow meters that support the YSI with a special Y connect cable Note that the YSI 600 S
154. locations do not install it where there is any possibility of submersion Where temperatures are expected to fall below freezing Teledyne Isco recommends installation of the alarm box indoors or in a heated location as the manufacturer of the micro processor does not specify its operation below 32 F 0 C DANGER Hazard of electric shock Use the relay contacts for low voltage 24 V pilot duty only Do not wire 120 VAC or higher voltages to the relay contacts Connecting the High Low Alarm Relay Box to a 4200 Series Flow Meter requires a cable and an M S connector A special cable 25 feet long is available from Teledyne Isco On one end of the cable is a 4 pin male M S connector Plug this connector into the Remote Printer Rain Gauge connector on the flow meter The other end of the cable has 3 stripped wires Attach them to the alarm box according to the instructions in the alarm box instruction manual BLACK 12 VDC GREEN 12 VDC WHITE DATA The Isco 4220 Flow Meter has the capability of displaying recording and if Flowlink software is used storing data provided from parameter sensors The parameter sensors available for the 4220 Flow Meter are for temperature dissolved oxygen DO pH concerned with the acidity or alkalinity of a solution and the YSI 600 Multi Parameter Sonde See Section 2 for information on the YSI 600 Sonde This section covers the Isco pH D O and temperature sensors The parameter probes
155. lt 0 003 and easily bent The slightest deformation may result in damage to the trans ducer or the placing of a permanent offset on it In either case the submerged probe will be ruined Do not drop the assembly or subject it to any physical abuse 6 3 1 Low Maintenance The submerged probe contains no user serviceable parts and nor mally requires no maintenance The probe will continue to function even when covered with several inches of silt sand or other solid materials It is generally not necessary to clean accu mulated solid materials from the vicinity of the probe However it may be beneficial to periodically clean the flow stream up and downstream from the submerged probe to maintain the hydrostatic conditions on which the level to flow rate conversion is based The probe has been designed to expose a small frontal area and a streamlined profile to the flow and that reduces the possibility of accumulating deposits of solid mate rials 6 4 4220 Flow Meter Section 6 Maintenance and Service 6 3 2 Cleaning the Occasionally organic materials may become jammed inside the Submerged Probe submerged probe s housing If this material swells as it becomes Without Disassembly saturated with water it will exert pressure on the stainless dia phragm placed over the transducer In the unlikely event that all entrance ports in the submerged probe housing become blocked with material that does not permit the pressure above the probe t
156. ly reappearing on the left side of the chart Because of the over range feature you can set a full scale value that gives you good resolution on the chart At the same time the automatic over range will prevent the loss of recorded data if the plotted line rises past the full scale point For the other conditions the full scale units will be appropriate for what is being measured D O pH temper ature etc Note that the flow meter is capable of multiple over ranges INPUT FOR PRINTER LINE B LEVEL FLOW RATE D O e pH OFF 2 51 4220 Flow Meter Section 2 Programming 2 4 11 Step 9 2 52 Reports History TEMPERATURE YSI pH YSI D O YSI SALINITY and YSI TEMP may also appear Again as for line A you can select another condition to plot on the chart The flow meter will request a full scale value The full scale value can be different from that of line A INPUT FOR PRINTER LINE C e NONE LEVEL FLOW RATE pH D O e TEMPERATURE YSI pH YSI D O YSI SALINITY and YSI TEMP may also appear For line C you can select yet another condition to plot on the chart The flow meter will also request entry of a full scale value PLOT RAINFALL ON CHART e NO e YES You must have an Isco Rain Gauge or equivalent connected to the flow meter to measure rainfall Output is recorded in either inches or millimeters Note that there is only one
157. me you press the right arrow key the flashing selection will move one position to the right This will continue until the flashing cursor is over the last display You may notice an arrow pointing to the edge of the display This indicates additional choices are available beyond what you can see By continuing to press the right arrow key you can view these unseen menu options After reaching the furthest option the arrow will move to the left side of the display indicating that there are options unseen to the left These will be the options you started with If you want to go back to one of them use the left arrow key until the option you need reappears When the desired selection is flashing just press Enter The display will then automatically advance to the next step of the program All of the program steps contain substeps that must be com pleted before you advance to the next step Some steps like Reset Totalizer contain only a few substeps Some steps require the entry of a numeric value Program these steps by using the number and decimal keys to enter the value Note that it is possible to program the flow meter in the shop rather than at the job site with the exception of step 3 Adjust Level Parameters To set level you must make an accurate mea surement of the level in the flow stream and then enter that value This can only be done at the job site If you are programming the flow meter for the first time gen erall
158. means The reference tube inside the cable can be restricted or blocked if the cable is kinked sharply bent or otherwise pinched The probe cable should be handled and mounted with care Also if there is any appreciable distance between the point where the probe cable leaves the mounting apparatus and the location of the flow meter be sure to attach the cable to the flow stream wall to prevent it from vibrating moving around tangling or possibly collecting debris N CAUTION Under no circumstances should you leave any extra length of sensor cable dangling freely in the flow stream where it could trap debris or become tangled Use gloves and eye protection when assembling and installing the rings in a pipe Though deburred the edges of the stain less steel can cut if improperly handled Please read the infor mation on how best to install this device Observe general safety procedures when entering any man hole See General Safety Procedures in the back of the man ual for more information on general hazards and necessary precautions 4220 Flow Meter Section 4 Submerged Probe Installation 4 12 4220 Flow Meter Section 5 Options and Accessories 5 1 4200T Modem 5 1 1 How it Works This section describes accessories available for use with 4200 Series Flow Meters There are two groups of accessories One group of options you can use with any of the 4200 Series The other group are accessories for a specific type of
159. mmends returning the unit for evaluation In addition to servicing the probe we can also provide advice on product applications and you can also purchase other accessories for use with the D O probe Use only 2 mil membranes with D O probes connected to Isco flow meters Table 5 4 D O Probe Specifications Polarizing Voltage Cathode Gold Anode Silver Membrane FEP Teflon 2 mil standard Electrolyte Half saturated KCI Potassium Chloride Temp Range 0 to 45 C 0 8 Volts Nominal Probe Current in Air at 30 C 19 microamps nominal Probe Current in Nitrogen at 30 C 0 15 microamps or less Connection 12 ft 3 2 m cable with 5 pin male M S connec tor Response Time Typical response for dissolved oxygen using supplied membranes is 90 in 20 seconds Response at low dissolved oxygen levels is typi cally 90 in 60 seconds 5 25 4220 Flow Meter Section 5 Options and Accessories Figure 5 10 D O Parameter Module 5 11 6 Calibrating the D O 5 26 Probe with a Flow Meter PAY Dissolved Oxygen You must use the Isco 270 D O Module box between the probe and flow meter this extends the maximum distance between the probe and the flow meter to 1 000 feet Prepare the probe as described above if this has not already been done fill the probe cavity with electrolyte and seat the mem brane M Note You must use the Isco Temperature Probe with the
160. mon sweet odor 1 53 air pollut Asphyxiant ant NO Reddish brown 1 58 Irritating odor 100 ppm dan Deadly poison gerous 200 ppm fatal Oxygen On Colorless odor 1 11 Normal air con Variable at dif Oxygen Oxygen defi less tasteless tains 20 8 of ferent levels depletion ciency indica Supports com O2 Man can tol from poor tor bustion erate down to ventila 12 Minimum tion and safe 8 hour absorp exposure 14 to tion or 16 Below 10 chemical dangerous to consump life Below 5 to tion of 7 probably oxygen fatal Ozone O3 Irritant and poi 1 66 Max naturally 0 08 0 04 Near bottom Where Detectable sonous Strong occurring level ozone is odor electrical odor is 0 04 ppm used for at 0 015 ppm Strong oxidizer 0 05 ppm disinfec Colorless At 1 causes irrita tion ppm strong sul tion of eyes and fur like odor nose 1 to 10 ppm causes headache nau sea can cause coma Symp toms similar to radiation dam age D 8 4220 Flow Meter Appendix D General Safety Procedures Table D 1 Hazardous Gases Continued Specific Explosive Likely Gravity 3 max WHE EELS Range by Location Most Simpiesnand Chemical Common Physiological Safe 60 8 Hour rer Cheapest Formula Properties onyapor Effect Min Exposure Exposure yoram alr Gu common Safe Method Density ppm ppm Limits Highest Source
161. mory Arrow keys move through menus Number keys enter numeric values See Section 2 Indicators Reading Function Display Multi function 2 line 40 characters per line liquid crystal display LCD Prompts you through program procedure displays total flow present flow rate and level May also display parameter readings if sensors present Internal Plotter Various Provides hard copy of total flow level or flow rate variation over time provides sampling information and a printout of the program Prints reports Generates three different linear data plots Chart characters and plots are generated on plain paper roll with an ink ribbon Connector Type Function 12 VDC 2 pin male M S Connects 12 VDC power to flow meter Sampler 6 pin male M S Connects flow meter to sampler Provides 12V flow pulse to sampler pulse width 78 ms Receives sampler bottle number composite sample and event mark signal Submerged Probe 5 pin female M S Connects submerged probe level sensor to flow meter Also pro vides connection for reference port vent tube Rain Gauge YSI 600 9 pin Male M S Connects flow meter to an Isco 674 Rain Gauge or YSI 600 Sonde Custom Multi Parameter Sonde Also provides output to High Low Alarm Relay Box Interrogator 6 pin female M S Provides serial data in out and power Can also be used with the 4 20 mA Output Interface and the 581 Rapid Transfer Device Modem optional 5 pin male M S Connect
162. mount the probe at any vertical location in the stream and then adjust the indicated level to match the actual level The flow meter can indicate negative levels A location other than the bottom of the flow stream may be useful for various reasons to avoid heavy concentrations of silt sand or other solids to make installation easier in tight loca tions to maximize level resolution over a specific level range to avoid hydraulic obstructions in the flow stream etc 4 1 4220 Flow Meter Section 4 Submerged Probe Installation The probe has several ports through which liquid enters the body to contact the pressure transducer The only way for the probe to malfunction is for all the ports to be completely blocked Most substances likely to cover the probe are somewhat porous which still allows the hydrostatic pressure of the flow stream over the probe to reach the transducer Bore 0 437 X 0 330 Deep 1 11 X 0 838 cm i gt i4 0 141 Dia Thru 0 358 cm 0 812 Liquid Ports 2 06 cm 1 oi i 0 670 ase oO a TO 0 O 0 18 42 cm 9 38 23 82 cm Figure 4 1 Submerged Probe Dimensions 4 1 1 Functionality Under Solids 4 1 2 Minimum Reliable Detection Level 4 2 Consequently the probe will normally continue to function even when covered with several inches of silt or sand Note however that porous solids such as wood chips or other organic materi
163. n 2 Programming If you select LEOPOLD LAGCO this will appear LEOPOLD LAGCO FLUME SIZE ogrecGiee Bree Oreo DM ee 5 ee Qt eeD ce If you press the right arrow key several times the sizes shown below will move onto the screen LEOPOLD LAGCO FLUME SIZE e 24 ee 30 e If you select HS the following display will appear HS FLUME SIZE 0 4 0 5 9 0 6 990 8 991 0 s If you select H the following will appear H FLUME SIZE eD ee Thee fieeDeeD DieoZiced die If you select HL the following will appear HL FLUME SIZE e 2 0 e e 25 e e 3 0 e e 3 5 ee4 0 0 If you select TRAPEZOIDAL this will appear TRAPEZOIDAL SIZE e LG 60 V 2 45 WSC 12 45 SRCRC e This completes the section on WEIR FLUME flow conversions Returning to Step 2 SELECT FLOW CONVERSION If you select EQUATION the following will appear ENTER EQUATION UNITS Q XXX XXXH X XX XXX XXXH X XX This step allows you to enter an equation that is appropriate for your flow situation The equation is expressed in the general form of Q k1H k2H where Q flow rate k1 a constant H level or head and P is the power to which H is raised k2 and P are a second constant and power found in some equations If your equation has only one term you should enter 0 for the second constant Returning to Step 2 SELECT FLOW CONVERSION if you select MANNING the following will appear
164. n 6 Maintenance and Service 6 8 Software Updates Update Isco Instrument Software installs software in Isco instru ments and modules This application will transfer a binary file from your PC to the instrument s flash memory Updated binary files are available from Teledyne Isco when enhancements have been made to the instrument software Contact the factory for help with obtaining these files CAUTION Updating the instrument software or resetting the instru ment may completely erase readings and reports stored in the instrument s memory Collect the data from the instru ment before proceeding 6 8 1 Updating the Flow The flow meter should be powered and turned on Meter Software Connect your computer to the flow meter using the Computer Connect Cable Interrogator Cable and start the program Update Isco Instrument Software A Update Isco Instrument Software Model Rev NOT LOGGED ON Com port Instrument type 1 v 4100 4200 6700 C 2100 4700 Path to files Select ist files ene Available operations Login to Instrument Login to Module Reset Instrument Hep About Exit I Perform Manual Update Progress Idle Figure 6 8 Open the software update program Click the Help button and follow the steps listed under Update Instrument Software Do not disturb the connection or stop the update while the file transfer is taking place When the transfer is complete the program displays an Operation s
165. n vacuum moisture from the reference line However if the blockage cannot be vacuumed out or if moisture remains inside the probe for a prolonged period the probe will be ruined beyond repair You cannot reach the end of the tube attached to the pressure trans ducer The cable is sealed where it enters the submerged probe and the probe itself is a sealed unit Consequently you cannot push air through the tube Applying pressure to the connector end of the cable will only drive the plug further into the line and will likely ruin the transducer You can avoid this problem completely simply by preventing sub mersion of the reference tube inlet and maintaining the desic cators Inspect them frequently and regenerate them when necessary 3 1 4 Opening the Case 3 2 Connection to a Power Source 3 2 1 Low Power Indication 3 2 2 Isco Sampler 4220 Flow Meter Section 3 Flow Meter Installation To access the flow meter controls and internal plotter you must open the case Unlatch the two catches on the right side of the case and pull open the lid You will need to open the case whenever you change the plotter chart or change the pro gramming with the keypad You can read the display through the window so periodic readings may be taken without opening the case Again do not allow the flow meter to operate routinely with the door open The 4220 requires a 12 volt direct current 12 VDC power input This power may come from various
166. nducted RF on AC lines 150 kHz to 80 MHz B 3V rms 80 modulated EN61000 4 11 Voltage Dips Short Interruptions 0 5 cycle each polarity 100 B EN 55022 RF Emissions Group 1 Class A Information Technology Equipment EN61000 3 2 3 3 Harmonic Flicker wj Ww We the undersigned hereby declare that the design of the equipment specified above conforms to the above Directive s and Standards as of July 5 2001 er William Foster USA Representative a TELEDYNE ISCO A Teledyne Technologies Company William Foster Director of Engineering Teledyne Isco Inc 4700 Superior Street Lincoln Nebraska 68504 Phone 402 464 0231 Fax 402 464 4543 60 3212 049 Rev A Teledyne Isco One Year Limited Factory Service Warranty This warranty exclusively covers Teledyne Isco instruments providing a one year limited warranty covering parts and labor Any instrument that fails during the warranty period due to faulty parts or workmanship will be repaired at the factory at no charge to the customer Teledyne Isco s exclusive liability is limited to repair or replacement of defective instruments Teledyne Isco is not liable for consequential damages Teledyne Isco will pay surface transportation charges both ways within the 48 contiguous United States if the instrument proves to be defective within 30 days of shipment Throughout the remainder of the warranty period the customer will pay to r
167. neren des Produkts warnt Esta se al le advierte sobre la importancia de las instrucciones del manual que acompa an a este producto gt gt Esta se al alerta sobre la presencia de alto voltaje en el interior del producto 4220 Flow Meter Table of Contents Section 1 Introduction LT DeSeriptlone sese te aniah tual a beatanat LOG inet Licata a athe ode chan east 1 1 1 2 Compatible Equipment 0 0 ccc een ene 1 1 1 38 Operating Principles 0 0 0 teen en nen eens 1 2 1 3 1 Submerged Probe Operation 0 0 nasenne rrera 1 3 1 3 2 Transducer Operation 0 0 ccc cc eee eee nes 1 3 14 Software Upgrades ae icones en a balk she hacen gate aaa Pe Mas aig ee Tae aisle 1 4 1 5 Controls Indicators and Connectors oses ccc ranerne errer 1 4 1 6 Technical Specifications 0 eee nen n eee 1 7 1 7 How to Make Battery Calculations 0 0 ccc eee 1 9 Lar Current Draw 2s 3 ccc 6 estes ee es a oth on ede l eae ea hee 1 11 Section 2 Programming 2 1 Getting Started m 1 60 iert a s het WG weed ee Se eS 2 1 2 1 1 Operation of the Display 0 0 teens 2 1 2 1 2 Keypad Functions oote cepere a n ae eee e RaT 2 2 2 2 Programming Procedure nanunua annuens 2 3 2 3 Description of Program Steps 0 0 0 0 0c cee eens 2 5 2 3 1 Step 1 Operating Mode 0 tenes 2 5 2 3 2 Step 2 Flow Conversion Type 0 e cece cence eee
168. nes cannot communicate directly over phone lines Modems convert the data into tones and transmit them over phone lines The equipment on the other end of the line answers with tones through its modem The first modem converts these tones back to digital data and interprets it The 4200T Modem is full duplex and works in the auto answer 5 1 4220 Flow Meter Section 5 Options and Accessories mode It operates at 300 1200 2400 baud This modem has speech and tone capabilities and comes with a connect cable to attach to the telephone line The modem is disabled when an interrogator cable is con nected to the flow meter s interrogator port It cannot receive incoming calls and the alarm dialout will be rendered inopera ble while this cable is connected Disconnect the interroga tor cable in order to use the 4200T Modem 5 1 2 Modems and Flowlink The 4200T Modem communicates with Isco s Flowlink data Software storage and acquisition software setting up the flow meter to collect blocks of data Flowlink allows storage and interpretation of flow meter data Other Flowlink software packages can write reports with this collected data 5 1 3 Connection toa The FCC Federal Communications Commission governs com Telephone Line munications over telephone lines Your local telephone company will provide you with the line between the flow meter and the computer Call them for connection information The FCC requires the following information b
169. nformation about programming the flow meter to use the YSI 600 is found in Section 2 of this manual Information about the YSI 600 Sonde is found in the YSI manual A mechanical totalizer is available for the 4220 that consists of a seven digit non resettable mechanical counter mounted in the front panel It must be ordered with the flow meter The totalizer 4220 Flow Meter Section 5 Options and Accessories advances according to program selections for units of measure and the maximum flow of the primary device used The totalizer is internally set to advance at 00 of the rate of the display totalizer Consequently you must multiply the number shown on the mechanical totalizer by 100 to determine the actual value for total flow 5 29 4220 Flow Meter Section 5 Options and Accessories 5 30 4220 Flow Meter Section 6 Maintenance and Service 6 1 Routine Maintenance and Minor Service 6 1 1 Care of the Flow Meter Case 6 1 2 Care of the Case Seal 6 1 3 Preventing Moisture Damage The following sections provide routine maintenance and ser vicing instructions Included are sections on cleaning the flow meter reactivating the desiccators maintaining the bubble line servicing the internal printer elementary troubleshooting and servicing CMOS circuitry Teledyne Isco recommends that you become familiar with the maintenance procedures presented here While the 4220 is rug gedly built to withstand severe field condition
170. ng Assy Rain Gauge Com 1 14 60 3214 125 Wiring Assy Parameter 15 60 3224 058 Wiring Assy Sub Probe 16 60 3234 022 Supply Spool Assembly 17 60 3234 023 Reroll Spool Assembly 18 60 1874 024 Desiccant Cartridge Assy 28 60 3213 098 Printer Mod 37 60 3213 229 Spool End Cap 39 60 3213 255 Wall Mount 40 60 3213 259 Window 41 60 9003 031 Connector Hole Plug 42 60 3233 099 Hinge Pin 43 60 3233 106 Desiccant Can Holder 44 60 3233 115 Connector Clip 688 Dia 45 60 3233 116 Connector Clip 813 Dia 46 60 3233 117 Connector Clip 938 Dia 47 60 3223 009 Bulkhead Nut 48 60 3223 010 Bulkhead Fitting 50 60 31 13 034 Latch Pin 53 60 3233 139 External Desiccant Tube 59 60 3223 101 Label Case Top 60 60 3213 060 Label Printer 61 60 3223 102 Label Connector 62 68 4220 006 Replacement Door 63 60 3213 260 Gasket Window 64 60 3213 261 Gasket Door 65 202 4001 14 O Ring Silicone 114 61ID x 1 W 66 202 4001 18 O Ring Silicone 118 86 ID x 1W A 4 4220 Flow Meter Appendix A Replacement Parts Table A 1 Replacement Parts List Continued No Part Number Complete Part Description 67 202 4001 20 O Ring Silicone 120 99 ID x 1W 68 60 3214 141 Case Latch Assy 72 109 0605 03 Draw Latch Assy Small 73 109 0609 00 Cabinet Catch White 74 142 2001 00 Component Holder 34 x 1 14 75 142 2003 00 Component Clip 34 76 149 1000 00 Amp Dust Cover 9760 10 77 149 1001 00 Amp Dust Cover MS9760 14 78 149
171. ngs Minimum Default Maximum Reading Interval 5 Minutes Continuous Continuous Printer Off Off 4 per Hour Report Generator Off Off Every Hour Average Current 14 mA 9 mA 23 mA Nickel Cadmium 10 7 Days 16 6 Days 6 5 Days Lead Acid 17 4 Days 27 Days 10 5 days Notes 1 These figures are approximations based on calculations actual times for your flow meter may vary due to factors of battery age charge condition operating temperatures and component differences Minimum set tings are those providing the lowest average current draw Maximum settings are those requiring the highest current draw Your program should draw somewhere between the two 2 The default settings are the program entered at the factory You can reset the flow meter to the default program at any time by holding down the 1 and Clear Entry keys at the same time 3 The nickel cadmium battery has a capacity of 4 0 ampere hours at 20 C 4 The lead acid battery has a capacity of 6 5 ampere hours at 20 C Both batteries are assumed to be fully charged with at least 95 of rated capacity and in good condition These cal culations also assume a 5 Safety factor at the end of discharge Lead acid batteries should never be completely discharged 5 All fractional times are rounded down rather than up 1 7 How to Make Battery To calculate battery life expectancy for an installation you must Calculations know two things 1 9 4220
172. not used in this particular text but which are available for use if needed You cannot use both serial outputs at the same time You must select one or the other The serial output is paralleled with the Interrogator Port and the Internal Modem Use of either the Interrogator Port or the Internal Modem will cause non standard data to be transmit ted 5 3 4 20 mA Analog These outputs provide connection between a 4220 Flow Meter Outputs External and and non Isco process control equipment such as chlorinators or Internal any other type of equipment that you can control with a 4 20 mil liampere current loop Analog outputs convert digital infor mation from the flow meter to a variable analog output current ranging from 4 to 20 milliamperes When a condition measured by the flow meter is converted into an analog output 4 mA becomes the 0 or baseline for the condition while 20 mA becomes the 100 or full scale of the condition Teledyne Isco offers two different arrangements for providing the 4 20 mA 5 4 5 3 1 External Analog Output Interface 4220 Flow Meter Section 5 Options and Accessories outputs One is an external box that converts the signals from the flow meter to a 4 20 mA current loop The other is an internal circuit board containing from one to three separate analog output circuits on the same board The 4 to 20 mA current is an industrial standard current loop for process control equipment that must respond to chang
173. nsure that the following conditions are met The probe must be properly submerged in solution and there must be no air trapped under the probe membrane or the reading may become incorrect and or erratic Do not touch the probe until after you have performed step 6 1 To calibrate the pH probe with the flow meter first go to program Step 1 PROGRAM SETUP Select PROGRAM 2 Step through the units of measure with the Enter key until you reach the menu that says pH UNITS NOT MEASURED pH Select pH You must do this in step 1 or the pH menu will not appear later 3 Now go to step 3 PARAMETER TO ADJUST NONE LEVEL pH Other selections may appear Select pH If the pH menu does not appear in step 3 go back to step 1 to make sure you have turned it on Then the pH selection of calibrations will appear 4 Place the pH probe in the appropriate buffer solution until the stainless steel body is one inch beneath the surface 5 If you select 4 amp 7 the following will appear Calibration with the other menu options 7 amp 10 or 4 7 amp 10 is essen tially the same as shown below For the other menus see Section 2 RINSE PROBE AND PLACE IN 4 0 pH SOLUTION PRESS ENTER WHEN STABLE X XX pH 6 Wait for the reading to stabilize this may take from 30 sec onds up to five minutes When the probe has stabilized press Enter and the following display will appear RINSE PROBE AND PLACE IN 7 0 pH SOLUTION PRESS ENTER WHEN ST
174. nts at the same time You must have the appropriate sensors for rainfall temperature D O pH and the YSI outputs You must have the optional modem to make use of this pro gram step The menus will not even appear unless the flow meter has a modem installed This feature allows you to program a 4200 Series Flow Meter to signal a remote location through a telephone line The Alarm Dialout feature is useful if you need to signal a remote location when there is a change of condition in the flow stream that could constitute an alarm You can program as many as five different eighteen digit telephone numbers into the flow meter in decreasing order of importance The modem is capable of speech DISABLE inhibits this function altogether CONDITIONAL lets you program the flow meter to signal these alarms for a variety of reasons You can use rainfall time level flow rate dis solved oxygen pH rate of change a combination of conditions or define the operation through Flowlink software from another computer STORM lets you set the alarm through a combination of rainfall and time You can also program the interval between calls and set up the system to reset the alarm condition by dialing back from the remote telephone All 4220 Flow Meters have a built in printer The printer is more than just a printer as it is capable of plotting linear data along with printing alphanumeric letters and numbers messages In this step you set the speed fo
175. o When you wire the cable to the terminals inside the Quick Dis connect Box simply attach each wire to the terminal that has the same color wire soldered to it Mount the Quick Disconnect Box with screws through the holes in the stainless steel backplate The M S connector on the submerged probe cable connects to the mating connector on the side of the Quick Disconnect Box Note the desiccant cartridge on the bottom of the Quick Dis connect Box This provides the atmospheric reference to the sub merged probe s pressure transducer If there is any chance of submersion of the Quick Disconnect Box you should attach vinyl tubing to the desiccant cartridge and route it to a place well above the maximum expected liquid level When you have com pleted the wiring inside the Quick Disconnect Box replace the cover and tighten the screws securely that hold the cover to prevent the possibility of any moisture entering the case Figure 3 4 Quick Disconnect Box for the Submerged Probe Cover Removed This will serve the same function as described in the previous paragraph If you cannot mount the Quick Disconnect Box far enough above the flow stream to ensure against accidental sub 3 9 4220 Flow Meter Section 3 Flow Meter Installation 3 5 Extension Cables 3 6 Safety Considerations 3 10 mersion when the stream is high you should protect the desic cator and the reference port by venting them at a point the water cannot possibly
176. o be transmitted to the pressure transducer you may clean the probe with the following procedure 1 Remove the submerged probe and its mounting apparatus from the flow stream 2 Scrape any accumulated solids off the exterior of the sub merged probe body with a brush 3 Gently flush the inside cavity of the submerged probe with water Do not use brushes or tools to try to remove matter lodged in the submerged probe s ports or cavity 4 If the ports are clogged and do not clear with the running water you may have to carefully disassemble the sub merged probe 6 3 3 Disassembling the If you cannot clean the submerged probe sufficiently by washing Probe for Cleaning and brushing the exterior or if you want to completely clean the unit prior to long term storage remove the probe from the flow stream and proceed as follows 1 Clean the exterior of the submerged probe with a stiff brush and flowing water 2 Remove the submerged probe nose section by unscrewing the two flat head screws that hold the nose section in place 3 Pull the nose section straight out of the probe body 4 Flush the probe cavity with gently flowing water to wash out any accumulated solid materials Figure 6 2 Warning Disk Inside Probe 6 5 4220 Flow Meter Section 6 Maintenance and Service Again any deformation of the stainless steel diaphragm will per manently disable the submerged probe If you must remove the nose of the probe do it v
177. of pH See Section 5 for more information about the pH probe If you are not using a pH probe you would select NOT MEASURED for this step e Ifyou choose NOT MEASURED for pH no more refer ences to pH will appear for the rest of the program e Ifyou select pH you will be unable to measure D O and references to D O will not appear on the rest of the program e If your situation requires the measurement of both parameters pH and D O at the same time or if you also need to measure conductivity you should use the YSI 600 Multi Parameter Sonde If you select NOT MEASURED and press Enter the following will appear D O UNITS MG L e PPM e NOT MEASURED e Measurement of dissolved oxygen is conducted in studies of water quality in lakes and streams Some dissolved oxygen is necessary for the survival of aquatic life in these waters PPM parts per million MG L milligrams per liter You must have an Isco Dissolved Oxygen Probe or approved equivalent to sense dissolved oxygen The probe attaches to an amplifier box which attaches to the Parameter Port The 270 D O module is no longer available from Teledyne Isco 4220 Flow Meter Section 2 Programming These devices require periodic calibration for accurate sensing See Section 5 for more information about the dissolved oxygen probe If you are not using the D O probe you would select NOT MEA SURED for this step Selection of PPM or MG L wi
178. on 4 Submerged Probe Installation 4 1 4 2 4 3 4 4 4 5 General Mounting Considerations 0 00 cc eee eens 4 1 4 1 1 Functionality Under Solids 0 0 ccc ccc eens 4 2 4 1 2 Minimum Reliable Detection Level 00 eens 4 2 Submerged Probe Nose Sections 0 0 e cece cece eens 4 3 4 2 1 Attaching the Nose Section 0 00 een eens 4 3 Circular Channels isi seyo fcc vehi e aha eek ai Ege hea eyes Ee eee aes 4 4 43 1 Spring Rin 98 s os sco en ewes a eee logy BAe Pe a a ts 4 4 4 3 2 Scissors Rings 0 ccc eee eee nee eens 4 7 Other Mounting Techniques 0 cece een eens 4 8 4 4 1 Rectangular and Trapezoidal Channels 0 02000 eee neues 4 8 4 4 2 Stilling Wells or Streams with Very Low Velocity 00 4 9 4 4 3 Securing Probe with a Weighted Plate 0 e cee eee nes 4 9 4 4 4 Weirs and Flumes 0 cece eect cece een ences 4 9 Completing the Probe Installation 0 0 cece eee nee 4 11 Section 5 Options and Accessories 5 142001 Modem 2 522 teria dla toe ech ul als attests Sh are beet tee ek Lath 5 1 Sll Howat Works 25 04 3062 A eter ips Sp tay ea te tn eae 5 1 5 1 2 Modems and Flowlink Software 0 cece eee nes 5 2 5 1 3 Connection to a Telephone Line 000s 5 2 5 14 Types of Service oser oere hth eet be idee cha ioe eee ads 5 3 5 2 Connection to External Serial Device
179. onde differs from the previously mentioned pH and D O probes The YSI 600 can measure pH and D O at the same time as well as temperature and conductivity If you are not using the YSI 600 sonde select NO in the following display and the flow meter will advance to the next step Otherwise select YES YSI 600 CONNECTED e YES e NO e e Ifyou select NO you will be unable to activate the YSI Sonde later in the program If no communication has been confirmed the following display will appear YSI COMMUNICATIONS CHECK e YES e NOe 2 27 4220 Flow Meter Section 2 Programming 2 28 NO is the default If you select YES the following display will appear WARNING DO NOT DISCONNECT POWER YSI COMMUNICATION CHECK PLEASE WAIT N CAUTION Do not disconnect either sonde or flow meter power during a communications check The memory in the sonde can be dam aged by a power failure during an update If the communication check is bad the following display will appear COMMUNICATIONS CHECK FAILED PRESS ENTER TO CONTINUE The flow meter cannot communicate at 600 baud If your sonde has been set up for 600 baud you will get a communi cations failure Consult the YSI 600 Manual for what to do in this case If the communications check is good the following display will appear COMMUNICATIONS RATE SET AT 2400 BAUD PRESS ENTER TO CONTINUE After you press Enter the flow meter will adv
180. onsider replacement when stabilization time reaches 5 minutes You can mount the probe facing either upstream or downstream but Isco recommends facing upstream as there is a stop on the sensor carrier that is not effective when the probe is facing down stream Remember to unscrew the rubber guard cap from the sensing end of the probe when you install it or the probe will be unable to sense the flow stream The guard cap is to protect the probe during shipment and storage and to keep the glass membrane and liquid junction from drying out If you remove the probe for any reason clean it and replace the cap after filling with 4 0 buffer solution Never store the probe dry or without the cap in place The Isco amplifier box extends the allowable distance between the probe and the flow meter The probe has a 25 foot cable so you must mount the amplifier within this distance The maximum distance between the amplifier box and the flow meter is 1 000 feet Table 5 3 pH Probe Specifications Description Submersible horizontal mounting probe with combination type electrodes Porous Teflon liquid junction to resist fouling and coat ing Steam sterilized glass hemi bulb for long term stability Size 6 long x 3 4 NPT Body Material Stainless Steel pH Range 0 to 14 pH units Temperature 32 to 176 F 0 to 80 C pH Accuracy 0 1 pH units over the full range pH Electrode Junctions Double porous junction Temper
181. oop to check the operation of equipment controlled by the loop at any level from 0 to 100 After connecting a 4 20 mA output to a con trolled device you can program the flow meter to put a specified current on a specific analog output If you are using the external 4 20 mA converter the Analog Output number will be zero M Note Selecting the MANUAL CONTROL option and programming any one of the ports will prevent the values transmitted by the other active 4 20 mA ports from being updated until the test is completed The other ports will continue to transmit whatever value they held at the start of the test Exiting from the MAN UAL CONTROL menu at the end of the test will return all active 4 20 mA ports to normal operation 2 17 4220 Flow Meter Section 2 Programming 2 18 Programming for the conditions and values that determine the operation of the 4 20 mA loop or loops is done in Programming Step 2 following the entry of FLOW RATE AT MAXIMUM HEAD M Note The information in the following section is provided for those who can write their own software programs to process the data transmitted from the Serial Output port Special cables may be required Contact Teledyne Isco technical support for more information Serial Output Returning to the OPTIONAL OUTPUTS menu you will see the SERIAL OUTPUt option This feature lets the flow meter transmit the most recent values for all currently enabled ports as ASCII text You can t
182. or a number of different points The 4220 Flow Meter can accept up to four sets of data points with each set containing as many as fifty points The flow meter then performs a three point interpolation to cal culate a flow rate appropriate for the data entered The common use of data point flow conversion is with unusual primary mea suring devices specifically devices that the 4220 does not support in the WEIR FLUME flow conversion set 2 33 4220 Flow Meter Section 2 Programming 2 34 The level to flow rate data for such devices is usually available from the manufacturer From this data the flow meter can create a flow conversion based on the relationship between the level and flow rate After the FLOW RATE UNITS menu has appeared the next menu is SET X 1 4 0 POINTS ENTERED e ADD POINT UNITS Then SET 1 DATA POINT 1 ENTER 0 00 level units 0 000 units of volume After you have entered the data point set the following will appear SET X 1 4 XX 1 50 POINTS ENTERED e USE EDIT POINT ADD POINT CLEAR PRINT UNITS SAVE will also appear if you move the flashing cursor with the right arrow key USE will only appear after four points have been entered USE tells the flow meter that the set is com plete and can be used for the flow rate calculation Select EDIT POINT if you need to change either the level or the flow value for a particular data point Select ADD P
183. or changes that could cause chat tering The next three menus may not appear depending on other selec tions you make in Program They concern alarm enable hys teresis set points for parameter sensing temperature pH and D O If you want to set hysteresis for any of these items you should enable them when you work through the program section then re enter the Setup section Hysteresis and they will appear Note that you can have temperature alone or temperature with either pH or D O You must have temperature with either pH or D O You cannot have pH and D O at the same time and selection of one will prevent the other from appearing on the menus later The following will appear if you are measuring temperature TEMPERATURE ENABLE ALARM HYSTERESIS XX XXX DEG F or C The following will appear if you are measuring pH pH ENABLE ALARM HYSTERESIS X XXX pH 2 4 2 Optional Outputs 4220 Flow Meter Section 2 Programming The following will appear if you are measuring D O DO ENABLE ALARM HYSTERESIS X XXX PPM or mg l depending on units selected in Program A set of menus similar to those shown above for pH D O and temperature will then appear for the YSI 600 Sonde if you have selected it You can set hysteresis for YSI pH YSI D O YSI Con ductivity and YSI temperature if these parameters have been turned on in previous program selections After all the HYSTERESIS men
184. or its outputs Normally a flow meter will not need both the analog and modem boards If your installation does however you should contact the factory The analog board terminates in a 6 pin male M S connector on the flow meter case Flow meters built with the analog board option are also supplied with an output cable This cable connects to the wiring that runs to the equipment controlled by the 4 20 mA current loop and to the 6 pin M S connector on the flow meter The cable has a 6 pin female M S connector and is pro vided with stripped pigtail ends for convenient wiring 5 6 4220 Flow Meter Section 5 Options and Accessories Table 5 2 Multiple Analog Output Board Specifications Operating Temperature 0 to 140 F 18 to 60 C Output Accuracy 0 5 of full scale Resolution 0 1 of full scale 0 20 mA Electrical Isolation Isolated from each other and from the flow meter Calibration Factory calibrated no further adjustments necessary Maximum output distance 1500 feet 457 3 m using 18 AWG wire Current Range per loop 0 to 20 mA Maximum Load per loop 750 ohms Analog Output 1 Terminations Pin A Red wire Pin C White wire Analog Output 2 Terminations PinD Brown wire Pin F Blue wire Analog Output 3 Terminations Pin E Black wire PinB Green wire Note If you must strip the cable further back to facilitate wiring you will expose an orange yellow and purple wire You may disrega
185. or ppt Press Enter When Stable Ms cm at job site only YSI 600 Dissolved Oxygen Calibration D O Standard Absolute Barometric Pressure Altitude 1 Reset Totalizer Yes No 2 Enable Totalizer CF or other units 3 Reset Sampler Enable Totalizer Yes No 1 Sampler Pacing Disable Volume Flowlink Conditional 2 Sampler Pacing Enter Pacing Volume _ CF 3 Condition Level Flow Rate Rainfall D O pH Tempera ture YSI pH YSI D O YSI Conductivity YSI Tempera ture 4 Condition Greater Than Less Than Rate Of Change 5 Select Operator Done Or And 6 Condition True Pacing Interval Pace Every Minutes 7 Condition False Pacing Interval Pace Every Min utes 1 Sampler Enable Mode Disable Enable Conditional Storm Flowlink 2 Level Greater Than _ Feet or meters 3 Rainfall Amount _ Inches other units 4 Rainfall Time Period 15 Min 30 Min 1 Hr 2 Hr 4 Hr 6 Hr 8 Hr 12 Hr 24 Hr 48 Hr 72 Hr 5 Time Since Last Rainfall Days enter 1 to 7 6 Condition Level Flow Rate D O pH Temperature Rain fall YSI pH YSI D O YSI Conductivity YSI Temperature 7 Level Greater Than Less Than Rate Of Change 8 Level Greater Than _ Feet or meters 9 Select Operator Done Or And 10 11 12 Flow Rate Greater Than Less Than Rate Of Change When Enable Condition Is No Longer Met Disable Sam pler Keep Enabled Enable Currently Latched Reset No Yes C 5
186. other standard buffers 7 and or 10 to calibrate the pH sensor If the probe fails to provide the correct output with any of the buffer solutions you will receive the following message pH BUFFER PROBE OUT OF RANGE PRESS ENTER TO CONTINUE If you select D O for Parameter to Adjust the following display will appear DISSOLVED OXYGEN CALIBRATION D O STANDARD ABS BAROMETRIC PRESSUREs gt ALTITUDE is just off screen to the right If you select D O STANDARD for the calibration method the following display will appear D O STANDARD 0 00 MG L If you select ABS absolute BAROMETRIC PRESSURE the fol lowing will appear ABS BAROMETRIC PRESSURE X XX mmHg 2 37 4220 Flow Meter Section 2 Programming 2 38 Absolute barometric pressure is barometric pressure not corrected to sea level The barometric pressure published by the U S Weather Bureau is adjusted to sea level If you use their value you must convert it to the absolute pressure for your altitude You should use Weather Bureau barometric pressure only if you are at sea level or are able to correct the Weather Bureau figure to absolute pressure at your location Enter the correct value WRAP D O PROBE IN MOIST CLOTH PRESS ENTER WHEN STABLE X XX MS CM Then the display will advance to the following CALIBRATING PLEASE WAIT If you select ALTITUDE for D O this will appear UNITS
187. ould also function as guards to keep people and vehicles away from 4220 Flow Meter Appendix D General Safety Procedures the manhole opening To avoid a serious injury a person should not be lifted out of a manhole by his arm unless it is a dire emer gency When more than one person must enter a manhole the first person should reach the bottom and step off the ladder before the next one starts down When two men climb at the same time the upper one can cause the lower one to fall by slipping or stepping on his fingers 5 Traffic Protection In addition to traffic cones markers warning signs and barricades a vehicle or a heavy piece of equipment should be placed between the working area and oncoming traffic Flashing warning signals should be used to alert drivers and pedestrians Orange safety vests should be worn by personnel stationed at the surface when the manhole is located in a vehicular traffic area 6 Falling Object All loose items should be kept away from the manhole opening This applies to hand tools as well as stones gravel and other objects 7 Removing the Covers Manhole covers should be removed with a properly designed hook Use of a pick ax screwdriver or small pry bar may result in injury A suitable tool can be made from 4 inch round or hex stock Two inches of one end should be bent at a right angle and the other end should be formed into a D handle wide enough to accommodate both hands Ev
188. over range for rainfall This step lets you set up the flow meter to print periodic reports The typical report contains such information as the period of time covered in the report maximum and minimum levels and when they occurred You can define two different reports in this step For example this is used to provide weekly and monthly reports You can choose the content of the reports by working through the menus in step 1 Go to step 9 and the following display will appear REPORT GENERATOR A ON OFF PRINT If you select OFF the program will advance to the next step and there will be no report A generated If you select YES the fol lowing will appear REPORT A DURATION TO BE IN e HOURS DAYS MONTHS After you select the units of time this will appear ENTER REPORT A DURATION XX HOURS DAYS or MONTHS could also appear depending on what you selected for the previous step The time selected becomes the time interval that will be covered in the report Then the flow meter will ask you when you want the first report printed PRINT REPORT A AT YR XXXX MONTH XX DAY XX HR XX MIN XX Then REPORT GENERATOR B ON OFF PRINT 4220 Flow Meter Section 2 Programming The second report generator lets you program the flow meter to print two independent reports at different intervals for example This is
189. pdates 6 17 Specifications 1 7 Stilling Wells 4 9 Submerged Probe Installation 4 1 Maintenance 6 4 Nose Sections 4 3 Operation 1 3 T Technical Specifications 1 7 Temperature Probe 5 14 Troubleshooting Steps 6 13 Y YSI 600 Sonde 2 8 5 27 Calibration 2 38 Programming Screens 2 27 FP mhasASWArrAWaMReae Name and amount of Hazardous Substances or Elements in the product BEE Ep Hazardous Substances or Elements Component Name tE m i E ZRA ZRK Pb Hg Cd Cr VD PBB PBDE BRAK X O O O O O Circuit Boards man x o o o o o Display FER O O O O X O Wiring NEA O O O O X O Keypad Ext BAL B ort x o o o x O DC Motor k j O O X O O O Connectors mnmtERSEMARTAERREE Name and amount of Hazardous Substances or Elements in the product O RRRS EMAER HAAR HEER HEST MEMENRERRUAT O Represent the concentration of the hazardous substance in this component s any homogeneous pieces is lower than the ST standard limitation X RRBZABASVRSLSE BREN RHR EEE ST HEMENREER ALTEA AGS SR ER TT ERPI BIBRA BET HE LAA X Represent the concentration of the hazardous substance in this component s at least one homogeneous piece is higher than the ST standard limitation Manufacturer may give technical reasons to the X marks IMR A A E The Environmentally Friendly Use Period EFUP was determined through experience PARR EAWNS SA WSUS A E
190. pear if you keep moving with the right arrow key This step establishes the units of measure the flow meter will use in all subsequent displays and calculations GPS gallons per second GPM gallons per minute GPH gallons per hour MGD millions of gallons per day CFS cubic feet per second CFM cubic feet per minute CFH cubic feet per hour CFD cubic feet per day LPS liters per second M3S cubic meters per second M3M cubic meters per minute M3H cubic meters per hour M3D cubic meters per day AFD acre feet per day TOTALIZED VOLUME UNITS GAL MGAL CFeeLe M3eeAFe This step determines the units value the flow meter will use to record the totalized flow volume that passes by GAL gallons MGAL millions of gallons CF cubic feet L liters M3 cubic meters AF acre feet For the next several substeps you must have the appropriate sensor attached to the flow meter s Parameter Port or Rain Gauge Port for the Rain Gauge or YSI 600 Sonde to take advantage of the capabilities You can only have D O temper ature pH temperature or temperature alone on a given flow meter unless you use the YSI 600 Sonde The YSI 600 Sonde pro vides multiple outputs simultaneously You can use the Rain Gauge with the YSI 600 sonde if you use a Y connect cable M Note The pH or D O probes do not attach directly to the flow meter as their output signals are very low You must also have the appropri
191. pecific installation needs A flat anchored mounting plate is a common mounting choice for installing sensors in rectangular or trapezoidal channels You can also install the probe in rectangular channels by bending a mounting ring to fit the channel Attach the ring to the channel wall with studs Consult your Isco Mounting Rings Installation and Operation Guide for more information Figure 4 7 Isco Rectangular Mounting Plate 4 8 4 4 2 Stilling Wells or Streams with Very Low Velocity 4 4 3 Securing Probe with a Weighted Plate 4 4 4 Weirs and Flumes 4220 Flow Meter Section 4 Submerged Probe Installation In flow streams with a minimal flow velocity or in a stilling well simply attach the probe to a weighted plate and submerge the plate in the stream or stilling well In situations with a minimal flow velocity for example in a stilling well you can simply attach the probe to a weighted plate and submerge it in the flow The 4220 Flow Meter is generally used with some type of primary measuring device such as a weir or flume The placement of the submerged probe in the primary device is deter mined by the type of primary device You can use one of Isco s mounting rings to install the probe in many weirs and flumes If the mounting ring are not suitable you must build your own mounting hardware Figure 4 1 shows the dimensions of the probe for your reference when building your own hardware Figure 4 8 shows the probe
192. pler from only one condition and that condition was level You would select level as the condition and then identify what change in level would be the trigger Then you would select DONE for the SELECT OPERATOR step Selection of DONE will advance the flow meter to the next program step Selection of OR or AND will allow you to select another condition and then 2 4 9 Step 7 Alarm Dialout Mode 4220 Flow Meter Section 2 Programming determine whether both conditions are necessary for enabling AND or whether either condition will enable the sampler OR If you select FLOW RATE FLOW RATE e GREATER THAN LESS THAN RATE OF CHANGE e You would select one of these options and then enter a value as for LEVEL previously The rest of the menus will appear the same as they did for LEVEL and FLOW RATE D O pH TEMPERATURE and RAINFALL all require activation in step 1 and use of the appro priate sensor Only one parameter condition pH D O can be measured by the flow meter at a time pH and D O will not appear on the display at the same time It is possible to program the sampler enable option so that it operates in two different modes latching and non latching To explain this in the non latching mode the sampler will be enabled only as long as the condition that caused the enabling remains outside of normal If the enabling condition returns to normal the sampler enable will tu
193. plots can be printed at the same time Flowlink Data Storage and Retrieval System Memory Partitions Maximum of 6 user defined memory partitions for level or event stor age Data Storage Rate of data storage user selected in 1 2 5 10 15 30 60 or 120 minute intervals Baud Rates Serial connection 300 1200 2400 4800 or 9600 baud Serial connection with the optional internal modem 2400 baud Storage 80 000 bytes apportioned per reading as follows flow 4 bytes level 2 bytes sample 4 bytes pH or D O 1 byte Level Data Level readings are stored as a 16 bit number representing 1mm 0 0394 inch effective range is O 65279 meters Flow Conversion Flow Rate Calculations The flow meter creates a table of level versus flow rate from program selections this table divides the level span into 256 equally spaced level increments Each level increment corresponds to a specific flow rate During data collection if the measured level falls between two table values the flow meter will perform a linear interpolation to calcu late the flow rate value Table 1 3 Technical Specifications for the 3222 Submerged Probe Physical Specifications Dimensions 7 diameter x 91 long 2 2 x 24 1 cm Weight 3 Ib including amplifier box and cable 1 4 kg Body Material Cable Length Operating Temperature CPVC chlorinated polyvinyl chloride housing stainless
194. program selection into the flow meter s memory Enter The other is to step through the program Program Step 2 2 Programming Procedure 4220 Flow Meter Section 2 Programming Print Program Pressing this key will make the flow meter print out a complete list of the current program choices retained in memory Print Report One function of the flow meter is to print reports of all recorded activity at regular intervals The contents of these reports are defined in step 1 If you set up the report generator you can have a report printed anytime by pressing this key The report will cover the time from the last scheduled report up to when you press this key The flow meter will print its next report at the next scheduled time Note that if power fails for five minutes or more the flow meter will print a report when power is restored that will cover the interval between the last report and the time that the power failed The next report will cover the time from the power failure to next scheduled report time Chart Advance Pressing this key causes the paper chart to advance through the printer at the fastest possible speed Nothing will be printed while you are holding this key Chart Reroll It is possible to unroll the chart from the take up roll on the flow meter by pulling it out with your hands Pressing this key lets you rewind the chart onto the take up roll Number keys These keys let you enter numeric values into the
195. r Service Department at 800 228 4373 CAUTION Do not attempt to disassemble or repair the 4220 Flow Meter other than changing fuses unless you are skilled in the evalu ation and repair of microprocessor based circuitry Teledyne Isco recommends no attempt be made to disassemble or repair the printer mechanism or display module The electronic circuitry of the 4220 is solid state and its reli ability is high If the unit should fail to operate properly the problem is most likely a mechanical failure Items such as a broken or intermittent connections in the power cable or wiring harness or rarely poor electrical connection through keypad switches should be suspected If you suspect an electronic problem Teledyne Isco recommends that you contact the Teledyne Isco Technical Service Department Contact information can be found on the War ranty page at the back of this manual Our Technical Service Department has trained technicians and specially designed equipment necessary for timely efficient repair of the 4220 Flow Meter If you still wish to attempt repairs the Customer Service Department is available to provide additional advice and infor mation on servicing 6 13 4220 Flow Meter Section 6 Maintenance and Service 6 14 6 6 2 Inspection Protocol When attempting to isolate problems within the unit you should assume that the CPU and memory are working properly until attempts to find problems in the peripheral ci
196. r central computer connected to the flow meter by modem You can use other programs in the package to process the retrieved data for further analysis In addition to storing data this software makes it possible to divide part of the flow meter s memory into partitions These partitions may be for matted in rollover or slate mode of data storage You can also set up the flow meter to store data as a result of some sort of triggering event such as level rising to a predetermined point the passage of a predetermined time interval or the occurrence of a storm event such as rainfall Consult the Factory A detailed explanation of the Flowlink software is beyond the scope of this manual Information on Flowlink Software is available from its manual or from the factory 5 7 High Low Alarm Relay Teledyne Isco offers a control box that monitors flow rate data Box available from any 4200 Series Flow Meter Alarm relays trip when the flow rate exceeds or falls below pre selected limits High and low set points are user set and range from 0 to 99 in 1 increments Output from the unit is the switching of form C SPDT relay contacts The unit has 2 relays one for high alarm and the other for low The availability of form C contacts both NO normally open and NC normally closed contacts means you can switch loads either on or off Relay contacts are rated 3 Amperes at 24 volts AC or DC The alarm box operates on 12 VDC supplied
197. r does not appear to be operating normally you can try to restart the processor by turning the unit off waiting a few minutes and then turning the unit back on If that doesn t work you can reset the software N CAUTION This procedure will cause most programmed entries and accu mulated data stored in the 4220 to be lost and the flow meter will revert to factory default settings If this operation is per formed it will be necessary for you to reprogram the unit to meet the specifications of your installation Use Print Program to keep a record of how you programmed the unit 6 6 Preliminary Troubleshooting Steps 6 6 1 If Serious Problems Occur 4220 Flow Meter Section 6 Maintenance and Service To reset the 4220 software 1 Press Print Program for a record of your program setup 2 Turn the flow meter off 3 Hold down the 4 and Exit Program keys simultaneously 4 While still pressing the 4 and Exit Program keys turn the flow meter on again Wait until the display reappears before releasing the keys Pressing 4 and Exit Program may leave some values pro grammed into the flow meter s computer If you want to remove all programmed entries hold down 1 and Clear Entry while powering up the flow meter The following messages describe serious internal problems indi cating service is required ROM CHECKSUM ERROR or FOUND BAD RAM CALL CUSTOMER SERVICE If these messages appear call the Teledyne Isco Custome
198. r secure mounting If the slots are loose against the tabs the probe may be swept away by the force of the stream 5 11 5 Probe Operation and The following factors determine the life of the D O probe and the Precautions frequency of service e Membrane life depends on use Membranes will last longer if installed properly and treated with care during use Contents of the flow stream are also important as some substances will foul the membrane very quickly Erratic readings will result from loose wrinkled or fouled membranes or from large bubbles in the electrolyte reservoir If erratic readings or evidence of membrane damage occur you should replace the membrane and the KCI electrolyte e In environments where the membrane becomes rapidly coated with oxygen consuming or oxygen evolving organisms erroneous readings may occur Chlorine sulfur dioxide nitric oxide and nitrous oxide can affect readings by reacting like oxygen at the probe If your readings seem unreasonable you may need to perform analysis to determine whether these gases are the cause Long term use as for monitoring can magnify the effect of these factors in some applications e Avoid any environment containing substances that may attack any of the probe s materials Some of these substances are concentrated acids caustics and strong solvents The probe materials that come into contact with the sample include FEP Teflon acrylic plastic ABS plastic EPR rubber
199. r senses in respect to irritating gases such as chlorine unconsciousness comes suddenly from breathing too much Be cautious about strange odors Do not determine percent oxygen in the air There is a danger that the result will influence a man s thinking about the seriousness of the real hazards Most important use ample ventilation and do not enter a potentially hazardous structure except in a good safety harness with two men at the top who can lift you out The following table contains information on the properties of hazardous gases D 3 Hazardous Gases Table D 1 Hazardous Gases Specific Explosive Likely i z Gravity 3 is MEd BELO Range by Location Most Simplestiand Chemical Common or Vapor Physiological Safe 60 8 Hour vol in air of Common Cheapest Formula Properties Effect Min Exposure Exposure RA i Safe Method Density ppm ppm Limits Highest Sources of Testing Air 1 lower upper Concentration Ammonia NH3 Irritant and 0 60 Causes throat 300 85 16 25 Near top Sewers Detectable poisonous Col and to Concentrates chemical odor at low orless eye irritation at 500 in closed up feed concentrations with characteris 0 05 cough per spaces rooms tic ing odor at 0 17 Short exposure at 0 5 to 1 fatal Benzene CgHg Irritant colorless 2 77 Slight symp 3 000 25 1 3 GA At bottom Industrial Combustible anesthetic toms to wastes gas indicator after several 5 000 varnish hours solvents exposure at 0 16
200. r should they be confused with state municipal or insurance requirements or with national safety codes 4220 Flow Meter Index Numerics 4 20 mA Output 2 15 5 4 Programming 2 35 4200T Modem 5 1 A Accessories 1 2 B 1 Alarm Box 2 20 5 12 Analog Output 2 15 5 4 Programming 2 35 Associated Equipment 1 1 B Battery Calculations 1 9 Battery Life 1 9 C Chart Paper Replacement 6 7 Compatible Equipment 1 1 Current Draw 1 11 D Desiccant Canister 3 1 Desiccant Cartridge 3 1 Display 2 1 Dissolved Oxygen Probe 5 21 E Extension Cables 3 10 F Flow Conversion Data Points 2 33 Equation 2 31 Manning 2 31 Weir Flume 2 29 Flow Conversion Types 2 6 Flowlink Software 5 12 H High Low Alarm Box 2 20 5 12 I Installation Flow Meter 3 7 Parameter Probes 5 13 Submerged Probe 4 1 K Keypad Functions 2 2 L Language 2 23 Low Power Indication 3 3 M Maintenance Case 6 1 Desiccators 6 2 Moisture Damage 6 1 Printer 6 7 Probe and Cables 6 4 Software updates 6 17 Material Safety Data Sheets E 1 Maximum Head 2 34 Modem 5 1 Mounting Considerations 4 1 Mounting Rings Universal Mounting Ring 4 7 MSDS E 1 O Operating Mode 2 11 Operating Principles 4220 1 2 Submerged Probe 1 3 Optional Equipment Alarm Box 2 15 External Analog Output Interface 5 5 Flowlink 5 12 Internal Multi Analog Output Board 5 6 Mechanical Totalizer 5 28 Modem 5 1 Quick D
201. r the chart to advance from 1 2 to 4 per hour Chart speed is set according to the amount of resolution you want to see on the chart If there is much activity on the chart you would generally choose a faster speed so the marks are more spread out and are easier to interpret If there is little activity on the chart and you want the flow meter to run for long periods without having to change the chart paper roll you would probably pick a slower speed The flow meter is capable of plotting three separate data lines on the chart in addition to the alphanumeric messages These lines may indicate various things such as level flow rate pH dis solved oxygen or temperature Note that you must have the appropriate sensors for pH DO and temperature to make use of these plots Rainfall is printed as a bar graph The printer is capable of plotting over ranges for the data lines it plots You can tell when the printer is in over range if a data line goes off the chart on the right side and then immediately starts over again plotting on the left side This step lets you program the flow meter to print out regular reports on the internal printer The reports the flow meter prints are a summary of activity the unit records over a period of time 2 4 Interpreting the Program Screens 2 4 1 Operating Mode 4220 Flow Meter Section 2 Programming Typically included are such items as maximum and minimum flow rates the time they were reached
202. r the display calculations and reports This method keeps program size manageable and makes pro gramming more efficient By turning off unneeded features of the program early you do not have to keep de selecting those fea tures over and over as you work through the program Consequently you should choose carefully from the first step We suggest you study the program first then fill out the Pro gramming Worksheets in the back of this manual and program the flow meter last if you are unfamiliar with the unit 2 5 4220 Flow Meter Section 2 Programming 2 6 2 3 2 Step 2 Flow Conversion Type Step 2 Flow Conversion Type determines how the flow meter calculates flow rate and total flow For the 4220 Flow Meter flow rate is calculated by knowing the measured level and usually the characteristics of a structure called a primary measuring device A primary measuring device is a structure placed across a flow stream through which the entire stream must flow These devices are made in a number of styles and sizes but they all have one thing in common For any type of primary measuring device there is a known relationship between the level in the flow stream ahead of the device and flow rate through the device Consequently after you measure level with the flow meter it can calculate flow rate and total flow from the measured level by consulting built in look up tables Detailed information about many commonly used prim
203. rcuitry have been exhausted This is for two reasons e The likelihood of failure is far greater on transistor drive circuits heavier currents are handled here than on the CPU or memory e The CPU and memory are not serviceable and must be replaced if found to be faulty Following are suggested areas to check before attempting to service the 4220 s circuitry Telephone consultation with Cus tomer Service is strongly recommended Look for the following 1 Verify that the problem is in the flow meter and not caused by the submerged probe probe cable Quick Disconnect Box power supply or other equipment connected to the flow meter The flow meter could be all right and will appear to mal function because of clogged or leaking tubes or other com ponents check these first Pay particular attention to the connectors and cable from the submerged probe 2 Check all 3 fuses to see if they are blown see Figure 6 7 3 Check the battery or power supply Proper voltage to the unit should be from 10 5 to 14 5 VDC If the unit is powered from the AC supply make sure the branch circuit is delivering at least 110 VAC to the power supply cord 4 Check the wiring harnesses connectors and solder joints Under normal conditions these should stay in good condi tion However physical stress or operation of the unit with the door open or the desiccator saturated could cause corro sion of the connectors in certain atmospheres
204. rd these wires as they are not connected in this application 5 7 4220 Flow Meter Section 5 Options and Accessories 5 4 Pacing Non Isco For applications requiring the conversion of the flow meter s flow Equipment proportional output signal to a fixed duration contact closure Teledyne Isco offers the Type E Interface Figure 5 1 Type E Interface for pacing non Isco equipment To allow connection to a second device simultaneously you must connect using the special Isco Y cable part 60 5314 278 A con nected sampler must have its own external power NEVER connect the sampler and flow meter to the same power source CAUTION Do not use the standard Isco Y cable 60 3704 081 with the Type E Interface This cable is designed for Isco sampler con nection only Use of this device requires a factory modification to the flow meter If you are connecting the Type E Interface to a previously purchased flow meter prepare the unit by performing the steps described in this section or contact the factory to return the unit for modification by Technical Service DANGER Risk of electrocution Disconnect the flow meter from power before performing any modification or repair 5 8 4220 Flow Meter Section 5 Options and Accessories CAUTION Always protect your equipment by observing anti static precau tions when exposing internal components Turn to Section 6 7 1 for recommended precaut
205. re not programming it 0000004 78 CF 1 13 FT 16 NOV 02 1 03 CFS XX 8 25 37 An interpretation of the numbers on this display would be as follows Time and date will be replaced by pH D O and temper ature if you are using parameter sensing The X X to the right of the time indicates letters that may appear from time to time on the 4220 Flow Meter The letter C will appear when the flow meter is communicating with a remote computer Flowlink applications only The letters E or D will appear Enable or Disable when the sampler enable function step 6 is programmed by condition Programmed by 2 1 4220 Flow Meter Section 2 Programming 2 2 2 1 2 Keypad Functions condition means that the flow meter will enable the sampler only when a certain condition or set of conditions sensed by the flow meter are met Total Flow Current Level Date or pH D O Flow Rate Time temperature Following is a typical programming display on the flow meter One of the items in the second line will be flashing The item flashing is the selection currently held in memory TOTALIZED VOLUME UNITS CFe GALe M3 AFe Le MGAL Following is a typical display providing instructional infor mation CHANGES HAVE BEEN MADE IN STEP PRESS 0 TO CONTINUE PRESS 1 TO DISCARD If you stop programming for more than two minutes the flow meter will time out and whatever is on the display message or program st
206. re will be no print If you select PRINT ALL the flow meter will print all the changes it has in memory as far back as 50 entries If you selected NO from PRINT FLOW METER HISTORY the flow meter will advance to CLEAR HISTORY YES NO If you select NO again the flow meter will exit programming and return to the normal display If you clear the memory previous programming changes will be erased but the flow meter will again begin keeping track of changes the next time you change the program 2 53 4220 Flow Meter Section 2 Programming 2 54 Flow Meter History Contents D O ADJUSTED pH ADJUSTED LEVEL ADJUSTED FLOW CONVERSION CHANGED PLOTTER SPEED CHANGED PLOTTER TURNED ON PLOTTER TURNED OFF TIME CHANGE FROM TIME CHANGE TO REPORT A CHANGED REPORT B CHANGED REPORT A TURNED ON REPORT B TURNED ON REPORT A TURNED OFF REPORT B TURNED OFF TOTALIZER RESET INTERROGATED SAMPLER ENABLED SAMPLER DISABLED ALARM ACKED BY X ALARM NOT ACKNOWLEDGED YSI pH ADJUSTED YSI D O ADJUSTED YSI CONDUCTIVITY ADJUSTED 4220 Flow Meter Section 3 Flow Meter Installation 3 1 Introduction 3 1 1 Preparation for Use 3 1 2 Installing the Desiccant Canister 3 1 3 Installing the External Desiccant Cartridge This section of the manual contains detailed information on the installation of the 4220 Flow Meter Included are sections on the power sources mounting methods interconnection wiring installat
207. reach Remember that water or other blockage inside the submerged probe s vent tube will ruin the submerged probe It is even more important to protect the Quick Disconnect Box this way than the flow meter because of the likelihood that the submerged probe will be directly connected to the Quick Disconnect Box When connecting the probe directly to the flow meter you may use an extension cable which would offer some protection to the sub merged probe The probe for the 4220 has a 25 foot cable If this length is insuf ficient Teledyne Isco offers extension cables for use with the probe There are two different lengths available one is 25 feet long the other is 50 feet long CAUTION The submerged probe extension cables and the submerged probe cable cannot be cut for any reason or they will be ruined The connectors are factory sealed and neither the shielding nor the vent tube inside can be satisfactorily spliced in the field CAUTION Teledyne Isco does not recommend connecting multiple exten sion cables together in an attempt to exceed the 75 foot limit Increasing the length of the vent tube beyond 75 feet slows the response of the pressure transducer and this may cause mea surement errors For greater distances use the Quick Discon nect Box and a custom built cable The submerged probe uses a differential pressure transducer The cable connecting the submerged probe to the flow meter con tains a small tube that
208. reference electrode is also adversely affected when allowed to dry out Salt crystals from the electrolyte or precipitates of the solution measured will form salt bridges either within or on the surfaces of the liquid junction causing the reference to be less conductive and resulting in a higher reference impedance This condition will typically worsen until the unit no longer func tions Soaking the reference electrode in a 4 0 pH solution or tap water if the buffer is not readily available may bring the ref erence back to life Boiling the electrode in 4 0 buffer solution or tap water could revive the electrode in more severe situations If none of these solutions work it may be necessary to replace the probe M Note The 270 D O module has been discontinued Probes service kits and accessories are still available to maintain existing field units This probe measures the amount of oxygen dissolved in a stream or waterway Oxygen dissolved in water is necessary for many forms of life that dwell in lakes and streams Inadequate supplies of dissolved oxygen will cause fish and other aquatic life that depend on them as a food source to die off or be sharply dimin ished in numbers The measurement of dissolved oxygen content is of interest to those monitoring the condition of lakes and streams Fish must have a certain minimum concentration of dis solved oxygen to thrive typically 4 to 6 mg l Various types of pollution can cau
209. rence port of the pressure transducer 6 2 1 Regenerating the Look at the desiccant canister each time you open the case The Internal Case canister has a window on its side that appears blue or yellow Desiccant when the desiccant is dry As the desiccant absorbs moisture the window will turn pale pink or green When the window is pink or green you need to regenerate the desiccant or replace it with the spare canister provided in the flow meter accessory package Remove the canister from the flow meter by pulling outward on the spring clamp releasing its hold on the canister Remove the canister and heat it in a vented oven in a well venti lated room at 300 F 150 C for about three hours or until the blue color returns Do not use a microwave oven the metal case of the canister could cause arcing After cooling reinstall the can ister in the flow meter Make sure the window on the side of the canister remains visible Figure 6 1 Location of the Desiccant Canister 6 2 6 2 2 Regenerating the External Desiccant Cartridge 4220 Flow Meter Section 6 Maintenance and Service Teledyne Isco uses two types of silica gel e One looks like small beads or pellets that are blue black when dry pale pink to transparent when saturated e The other looks like coarse sand yellow when dry dark green when saturated Regenerate desiccant by heating at 212 350 100 175 C MSDS Material Safety Data Sheets for silica g
210. rn off until the next time the condition goes outside of normal In the latching mode the sampler will be enabled the first time the condition goes outside of normal and the sampler will stay enabled regardless of any later changes to the enabling condition If this is the case the following menu will allow you to reset the sampler enable feature Note that this menu will not appear unless the condition necessary to enable the sampler has been met and the sampler is currently enabled WHEN ENABLE CONDITION IS NO LONGER MET e DISABLE SAMPLER ee KEEP ENABLED e Or ENABLE CURRENTLY LATCHED RESET e NO YES Select YES to reset the sampler enable feature select NO to leave the sampler enabled PRINTER ON OFF WITH ENABLE e YES NO This selection allows you to turn the flow meter s internal printer on or off when the sampler is enabled from the flow meter This allows you to conserve battery power and only print a chart when the sampler is enabled This feature is useful for monitoring storm water runoff This step lets you signal an alarm to a remote location from the flow meter The conditions that can cause an alarm are the same as described previously for sampler enabling 2 47 4220 Flow Meter Section 2 Programming 2 48 M Note You must have the optional internal modem installed and con nected to a telephone network to make use of this feature This menu will not even appear
211. s it will function best and remain most reliable if you follow these simple proce dures If you close and latch the lid and cap all the M S connectors on the side of the case tightly you can clean the case by spraying it with a hose or washing it with soapy water Do not use a hose with a nozzle or a high pressure hose and wand Do not immerse the flow meter in a tank of water to wash it The flow meter can usually withstand accidental submersion in water if that should occur but it is not intended for routine submersion From time to time you should inspect the case seal and clean it if necessary The ridge around the edge of the case and the groove on the cabinet door form a seal when the door is closed Keep this seal free of dirt sand etc If it isn t clean it carefully with a damp cloth Also keep the rubber gasket in the lid clean You can clean it with a small brush and a damp cloth If you do any cleaning while the case is open be careful not to let any dirt or debris fall inside the flow meter assembly It is best to work on the flow meter with the case standing upright If you don t maintain the seals properly they may leak causing damage and eventual failure of the components inside To prevent moisture damage to the internal components keep the lid tightly latched at all times except when it is necessary to change the program or change the chart Do not operate the flow meter routinely with the case open This will expo
212. s flow meter to telephone line for remote data transmission This connector will only be present on units that have the optional modem installed Analog Output 6 pin male M S Provides analog data output from the flow meter to external optional non lsco control and recording devices Parameter 7 pin female M S Connects flow meter to parameter sensor temperature pH or D O Note that you can only have temperature and one parameter pH or D O at the same time NOTE The 270 D O module is no longer available from Teledyne Isco 1 6 1 6 Technical Specifications 4220 Flow Meter Section 1 Introduction The technical specifications for the 4220 Flow Meter are found in Table 1 2 The anticipated longevity for a roll of paper used in the internal plotter is shown for various chart speeds in Table 1 4 Battery life expectancy is found in Table 1 5 Table 1 2 Technical Specifications for the 4220 Flow Meter Physical Specifications Size 16 high x 11 12 wide x 10 12 deep 40 6 x 29 2 x 26 7 cm without power source attached Weight 17 Ib 4 oz 7 7 kg Material High impact molded polystyrene structural foam Type Self certified NEMA 4X Enclosure Display Type 2 line 40 character line alphanumeric dot matrix liquid crystal Power 12 14 VDC 16 mA average at 12 5 VDC Plotter set at 1 per hour Typical Battery Life 7 10 days with plotter at 1 per hour and 4 Ampere hour Ni Cad b
213. s of Testing Air 1 lower upper Concentration Sludge Mostly a simple Variable Will not support No data Would 5 3 19 3 Near top of From See compo Gas asphyxiant May life vary widely with composition structure digestion nents be practically of sludge odorless taste less Sulfur SO Colorless pun 2 26 Inflammation of 50 10 At bottom can Industrial Detectable Dioxide gent odor Suffo the eyes 400 to to combine with waste taste and odor cating corrosive 500 ppm imme 100 water to form combus at low concen poisonous diately fatal sulfurous acid tion com tration non flammable mon air pollutant Toluene C5H12 Colorless ben 3 14 At 200 500 ppm 200 100 1 27 7 0 At bottom Solvent Combustible to zene like odor headache nau gas indicator CoH 29 sea bad taste lassitude Turpentine CyoHig Colorless Char 4 84 Eye irritation 100 At bottom Solvent 1 Detectable acteristic odor Headache diz usedin odor at low ziness nausea paint concentration irritation of the s kidneys 2 Combustible gas indica tor Xylene CgHi9 Colorless flam 3 66 Narcotic in high 100 1 1 7 0 At bottom Solvent Combustible mable concentrations gas indicator less toxic than benzene Percentages shown represent volume of gas in air For concentration over 0 3 Mostly methane and carbon dioxide with small amounts of hydrogen nitrogen hydrogen sulfide and oxygen occasionally traces of carbon monoxide
214. s torn Fold the paper over on itself so the end is straight and stiffer than a single layer of paper would be Unroll a few inches of the paper and set the roll on top of the cabinet Use your fingers to feed the paper down the back of the internal printer to where it touches the roller Make sure the paper gets past the lever for the paper sensing switch Press the Chart Advance key and hold it until the paper comes through the printer mechanism When the paper comes through reinstall the feed spool with the new roll on it by snapping it into the printer assembly Run a few inches through the printer using the Chart Advance key then unfold the end Put the cardboard tube from the empty roll on the take up spindle and reattach the white end cap by wedging the catches on the end of the spool into the two slots on the white end cap Use the piece of tape to attach the end of the new paper to the cardboard tube from the old roll Roll some of the paper onto the spool so that it will wind clockwise facing away from you Then reinstall the take up roll into the top of the printer Be careful to push it all the way back in so that the take up gear on the end of the spool assembly will reen gage When the take up spool is back in place push the Paper Reroll key this will remove any slackness in the paper Spool Figure 6 5 Changing the Ink Ribbon 6 4 2 Ink Ribbon Replacement 4220 Flow Meter Sec
215. sccecesssseeeceessseeeecessseeeeceseeeeaeecesseesaesesesseaaeeees 60 5314 278 Gate EHra oo ieS AAAA PANE EE A E N E ETET 60 3004 156 Printer fib om placki a a a E daveb eases A r aa O TETEE 250 0200 00 Plotter paper roll BE ftsi ccsssc chetsie si A 60 2313 019 B 1 4220 Flow Meter Appendix B Accessories List Optional Equipment High Low Alarm Relay Box ccccseesssssccesecseccecesssensnsecaecececseceecsesenseseaeeeesecseeseneesensaaaeaeeess 60 3404 028 4 20 mA Output Tater TAE resoa i des Slee E E RO EE la dbebins decked betacebiees 60 1784 039 Wey pe Hs Initertace sss etnar in Eea EATON OEA th T hove ae ase ear aera eet 60 1784 024 Flowlink SOP Ware seinere seicccats ee ceeaiaeb cde Eao Re aeaa Seas Ero aE tected Edena ERES 68 2540 200 Call factory for additional information GTA Rain Ga g 0 01 lt x dive csetcces io seseeied each uacecaisted coh saeauscabeates celacavesteteeciat 60 3284 001 674 Rain Gauge 0 Lmm aeara cave sccccdaans secdada A ey voce dda sb huccadanss vocdedews beckeasasshheaaaeses 60 3284 006 Spreader Bar cecise sessed E a r a T sano ee takab Sled hae E soak alse 60 3004 110 pH Probe and 201 pH Module 25 ft cable standard cccccccccesssssceccesssececessssaaeceeseseaaees 68 4200 002 Includes probe built in temperature sensor DOr Probe oni eeann va ees seis can eae oon cae a essen ret eel el eden Sen tees ates ele os 472 0000 00 DOs Membrane Kitee vase coteicaasecdstiensccuadesuee
216. se the amount of oxygen dis solved in water to drop sharply placing the aquatic life forms at serious risk The D O probe measures the amount of oxygen dis 5 21 4220 Flow Meter Section 5 Options and Accessories 5 11 1 How the D O Probe Works 5 11 2 Probe Preparation 5 22 solved in water in a range from 0 to 20 mg l Note that the flow meter can display D O in either mg l milligrams per liter or ppm parts per million depending on your choice in pro gramming For effective use of the D O Probe please read and con sider the following before making the installation e The D O Probe requires constantly moving water The probe consumes oxygen during operation this will deplete the oxygen available from stagnant or stratified waters resulting in an inaccurate reading Do not install it in a stilling well or in any location where water movement is intermittent or very low As a guideline a minimum velocity of one foot per second is suggested e Frequent maintenance is necessary when the probe is installed in flows with grease or solids content Tests conducted by Isco with probes installed in various waste streams have indicated that greases and solids quickly coat the probe s membrane making it impos sible for oxygen to enter the reaction chamber This will result in an abnormally low reading or no reading at all e Cleaning the membrane is generally not effective as it tends to drive the solids further into th
217. se the internal components to dirt and moisture it will also saturate the des iccant canister inside the case very quickly Inspect this canister periodically and recharge it as necessary as described subse quently It is also important to keep the external connectors clean by keeping the mating connectors or the protective caps tightly screwed down Under severe operating conditions you can spray the threads of the connectors with a cleaner lubricant such as Jif or WD 40 to prevent corrosion Be careful not to spray any of the terminals pins or jacks inside the connectors residue from the sprays could cause intermittent or failed connections 6 1 4220 Flow Meter Section 6 Maintenance and Service 6 2 Reactivation of the The 4220 has a reusable desiccant canister held by a steel clamp Desiccators on the inside of the case lid There is also a tubular desiccant car tridge on the top of the case next to the connectors The canister contains silica gel that adsorbs moisture trapped inside the flow meter s case when it is closed This keeps the inside of the case completely dry during shipment storage and use If you leave the case open the desiccant will quickly absorb moisture from the surrounding air and will soon be saturated It will no longer be able to protect the flow meter Both desiccators use a color indi cator that changes from blue to pink or from yellow to green when saturated The external desiccant cartridge vents the ref e
218. sing 18 AWG wire 5 5 4220 Flow Meter Section 5 Options and Accessories 5 3 2 Internal Multiple For those needing more than one analog output Teledyne Isco Analog Output Board offers the Multiple Analog Output Board which is installed inside the flow meter The board is compatible with the existing external 4 20 mA output box 60 1784 039 A flow meter can use either the internal board the external box or both for a maximum number of four analog outputs If your flow meter has both the multiple analog output board and the external analog converter the internal ports will be designated Analog Outputs 1 2 and 3 The external converter will be designated either External or Analog Output 0 The Multiple Analog Output Board consumes a minimum of 16 mA per output consequently the flow meter should be AC powered If you must use battery power you should consider the following to extend battery life e Use a Solar Panel Battery Charger e Use a larger battery either a commercial deep cycle marine type or an Isco 35 Ampere hour lead acid battery e Order only one analog output e Flow meter program choices also affect power consumption Use minimum settings if possible See Section 1 Table 1 5 and Section 5 The outputs from the analog output board are electrically iso lated from the flow meter and from each other by internal DC DC converters The board uses the opening for the modem connector f
219. sions 000 c cece ete eens 4 2 4 2 Alignment of Grounding Point 0 eee cece eens 4 3 4 3 Sensor Installed on a Spring Ring 0 0 cette 4 4 4 4 Spring Ring Preparation 0 0 ccc cette e eens 4 5 4 5 Mounting Ring in a Round Pipe 0 cece reee 4 6 4 6 Universal Mounting Ring Adjustment 0 0 0 sneren eens 4 8 4 7 Isco Rectangular Mounting Plate 0 0 cece eee eens 4 8 4 8 Typical Primary Device Installations 0 0 cece eee eee ee 4 10 5 1 Type F Interface for pacing non Isco equipment 0000s eee eee 5 8 5 2 Flow meter with front panel removed susuan enesenn ene eee 5 9 5 3 Removing the lower shield 0 c ccc cee ence nee 5 10 5 4 Type EF modification 0 cect e eens 5 10 5 5 674 Tipping Bucket Rain Gauge 0 0 ccc teens 5 11 5 6 Temperature Probe 0 0 ccc ene een eens 5 15 5 7 pH Probe with protective cap 00 5 16 5 8 pH Parameter Module 0 ccc ence tenes 5 19 5 9 Isco D O probe ra inadou des Bik og eh dae be evs ce gas eee E EE Gee Be 5 21 5 10 D O Parameter Module 0 0 cece eee e ene 5 26 5 11 The YSI 600 Multiple Sensor Sonde 0 0 0 cece ee eee 5 28 6 1 Location of the Desiccant Canister 0 0 cece ee eens 6 2 6 2 Warning Disk Inside Probe 0 0 cece teen ene 6 5 6 3 Alignment of Grounding Point 0
220. sks Waders The following is an article written by Dr Richard D Pomeroy and published in the October 1980 issue of Deeds amp Data of the WPCEF Dr Pomeroy is particularly well known for his studies over a period of nearly 50 years in the field of the control of hydrogen sulfide and other odors in sewers and treatment plants He has personally worked in a great many functioning sewers In the earlier years he did so he admits with little knowledge of the grave hazards to which he exposed himself It is gratifying that the subject of hazards to people working in sewers is receiving much more attention than in past years and good safety procedures are prescribed in various publications on this subject It is essential that people know and use correct pro cedures It is less important to know just what the hazardous compo nents of sewer atmospheres are as safety precautions should in general be broadly applicable but there should be a reasonable understanding of this subject It is disturbing to see statements in print that do not reflect true conditions One of the most common errors is the assumption that people have died from a lack of oxygen The human body is able to function very well with substantially reduced oxygen concentra tions No one worries about going to Santa Fe New Mexico elev 2 100 meters where the partial pressure of oxygen is equal to 16 2 a normal atmosphere is about 21 oxygen When first
221. so use the 4220 to measure flow using the Manning equation The level measuring device is a submerged probe The flow meter electronically converts the level reading into a properly scaled flow rate value The flow meter also provides standard or optional flow related output signals to be used for e Flow proportional sampler pacing and enabling e Transmitting level and flow data to an external device on a serial communications loop e Data transfer to a remote location through a modem e Control of an external 4 20 mA device e Data transfer by a laptop computer The flow meter contains microprocessor controlled circuitry to calculate level and flow rates from the output produced by the submerged probe store user programming instructions operate the display and internal printer An alphanumeric liquid crystal display LCD shows current total flow level and flow rate infor mation It also prompts you while you program the flow meter during initial setup or subsequent program changes An internal printer provides a hard copy printout of the information com puted by the flow meter plots level or flow rate and generates reports Connectors for other equipment you can use with the 4220 Flow Meter are on the right side of the flow meter s case 1 3 1 Submerged Probe Operation 1 3 2 Transducer Operation 4220 Flow Meter Section 1 Introduction The submerged probe is mounted beneath the surface of the flow stream and measures liquid l
222. sources e Companion Isco Wastewater Sampler e Isco Nickel Cadmium Battery e Isco Lead Acid Battery e Isco AC Power Supply e External 12 VDC battery such as a deep cycle marine or RV type Detailed information on power sources is provided in the Power Products Guide provided with this manual The procedures for connecting all these power sources to the flow meter are dis cussed in the following sections When power to the flow meter falls too low for the unit to operate properly the message POWER LOST LOW BATTERY will appear on the top line of the display When power is lost or falls below operating limits the flow meter will stop measuring level the display will go blank and the internal printer will not be able to print However the internal battery backed RAM will retain program selections you have entered and also stored data in memory if there is any Note that you must be using Flowlink software for any data to accumulate in memory If you combine a 4220 Flow Meter with an Isco Wastewater Sampler in a flow proportional sampling system you can power the flow meter from the sampler s power supply Connect the flow meter to the sampler with the Isco flow meter to sampler cable This cable attaches to the SAMPLER connector on the flow meter and the FLOW METER connector on the sampler The flow meter will then receive power from the sampler Keep in mind that under certain conditions such as a fast setting on the internal pr
223. stalled on your probe unless oth erwise specified in your order It is particularly well suited for flow streams with high velocities because its shape overcomes hydraulic problems that develop in these flow streams At veloc ities exceeding 5 feet per second 1 5 meters per second localized low pressure areas form near the submerged probe which can result in erroneous level readings The length of the nose section 3 87 inches or 9 84 cm minimizes low pressure areas by allowing the flow stream to stabilize before it reaches the probe s entrance ports Slanted Nose Secon Slanted Nose Section Under certain conditions low flow rates in debris laden small sewers for example the submerged probe may catch and retain the debris obstructing the flow stream and causing erroneous level readings To avoid this problem use the slanted nose section This nose section has a slanted leading edge that tends to shed debris more readily than the standard nose section Use the slanted nose section with caution however Under condi tions of low flow and high velocity the slanted nose section may induce a hydraulic jump in the flow stream that can cause erro neous level readings Flume Cap The flume cap is a small blunt cap that replaces the nose section Most flume manufacturers can supply flumes Flume Cap with a small cavity to accept an Isco probe The probe cap pro tects the transducer while minimizing the total length 4
224. steel 25 ft 7 6 m 32 to 160 F 0 to 71 C Storage Temperature 40 to 160 F 40 to 71 C Maximum Distances between flow meter and level sen sor 75 feet 22 7 m with optional extension cables 1 000 feet 305 m with optional Quick Disconnect Box Level Measurement Specifications Measurement Range 0 1 to 10 0 ft 0 03 to 3 05 meters Maximum Level 20 0 ft 6 1 m Measurement Accuracy Standard Sensor 0 033 to 5 0 ft 0 008 ft ft 0 01 to 1 52 m 0 008 m m gt 5 0 ft 0 012 ft ft gt 1 52 m 0 012 m m 77 F 25 C Includes non linearity repeatability and hysteresis but does not include temperature coefficient Specifications include nonlinearity repeatability and hysteresis but do not include a temperature coefficient 1 8 4220 Flow Meter Section 1 Introduction Table 1 3 Technical Specifications for the 3222 Submerged Probe Continued Compensated Temperature Range 32 to 122 F 0 to 50 C Temperature Error over compen 0 1 to 4 0 ft 0 03 to 1 2 m 0 005 ft per degree F sated temperature range 4 0 to 10 0 ft 1 2 to 3 1 m 0 007 ft per degree F Table 1 4 4220 Chart Longevity M Note Report Generator is turned off Chart Speed Inch Hour Time to Empty Roll 4 71 4 Days 2 141 2 Days 1 29 Days 0 5 58 Days Table 1 5 Battery Life Expectancy Flow Meter Setti
225. step 6 Sampler Enable is similar to step 5 Sampler Pacing The menus and options are similar The dif ference is that where sampler pacing only causes the flow meter to send a momentary signal flow pulse to the sampler sampler enabling actually controls an inhibit line to the sampler that can keep the sampler from running its program Sampler enabling is 4220 Flow Meter Section 2 Programming useful where the sampler needs to remain idle for long periods of time such as storm water runoff applications When you select or advance to step 6 the following display will appear SAMPLER ENABLE MODE e DISABLE e ENABLE e CONDITIONAL STORM Flowlink may also appear The Flowlink menu option will not appear unless Flowlink software is installed DISABLE means that the sampler will be permanently inhibited by the flow meter This condition will remain until you change it in this program step or if you are using Flowlink until it is over ridden by a command from Flowlink Select the DISABLE option with care it will make the sampler appear to be inoperative and that could easily be misinterpreted as an equipment failure ENABLE means that the sampler is permanently enabled free to run its own program without any control from the flow meter This condition will remain until you change this menu option or until it is overridden by a command from Flowlink The STORM option will not appear unless you turned on r
226. t loop minimum in Setup The units are the units of measure appropriate for the option you selected for example feet or meters for level degrees F or C for temperature mg l for dissolved oxygen etc After you have set the minimum value for the port the flow meter will request you to enter a value for full scale or 100 ANALOG OUTPUT PORT 1 20 MA X X units This value causes the port to transmit 100 or 20 mA For example if the data type selected for this output were level and the unit is measuring level in a four foot pipe you would enter a full scale value of four feet If the actual level reading is cur rently two feet the analog output would read 12 mA 50 if the 4 20mA current range is selected or 10 mA 50 if the 0 20 mA 2 35 4220 Flow Meter Section 2 Programming 2 4 5 Step 3 Parameter to Adjust current range is selected The flow meter will then request that you repeat the process of defining the data type and setting the minimum and maximum values for any of the other analog ports you activated previously in Setup This step lets you enter the measured level in the flow stream It also lets you calibrate the pH acidity or alkalinity D O dis solved oxygen parameter sensors and the YSI 600 Multiple Parameter Sonde Note that there is no calibration step for the temperature sensor because it doesn t need calibration When you select step 3 the following will appear PA
227. t this should be avoided M Note Do not connect an Isco pH probe and temperature probe to the 201 module at the same time The Temperature Probe input on the 201 module is for use ONLY with non Isco pH probes that do not have built in temperature sensing The Isco pH probe contains its own integral temperature sensor which if connected in parallel with a separate temperature probe will cause erroneous readings 201 pH Module M Note When installing the pH probe and its sensor carrier make sure the mounting slots on the carrier are completely pressed into the mating tabs on the ring The probe relies on a full engage ment between tabs and slots for secure mounting If the slots are loose against the tabs the probe may be swept away by the force of the stream Always mount the probe in an easily accessible location because you will need to clean it from time to time Also all pH probes are consumable items meaning that they will eventually fail and have to be replaced The probe is due for replacement when you can no longer calibrate it after cleaning to 0 2 pH with the standard buffers of 4 7 and or 10 Another indication of end of life is when the probe calibrates satisfactorily but takes too long to stabilize more than 10 minutes Such a probe could 5 19 4220 Flow Meter Section 5 Options and Accessories not possibly respond to rapidly changing pH If your situation requires fast response you should c
228. ter _ level units _ units of volume Enter data points in the table below If you have multiple data point sets photocopy this table Data Point Set Enter Maximum Head 32 1 2 Maximum Flow ___ units of measure Parameter To Adjust None Level pH D O YSI 600 Job Site only Enter Current Level _ _ s Ft or M Note Installations generally use either the Isco parameter probes or the YSI 600 Sonde but not both Use the follow ing menus for either the Isco probes or the YSI 600 Sonde Steps 3 4 and 5 can be used for both 2 and 3 point pH cal ibrations Rinse Probe And Place In 4 0 pH Solution Press Enter When Stable _ pH job site only Rinse Probe And Place In 7 0 pH Solution Press Enter When Stable _ pH job site only Rinse Probe And Place In 10 0 pH Solution Press Enter When Stable _ pH job site only C 4 Reset Totalizer C 5 Sampler Pacing C 6 Sampler Enable 10 11 12 D O only Enter Altitude Altitude 4220 Flow Meter Appendix C Programming Worksheets YSI 600 D O Calibration only D O Standard Absolute Barometric Pressure Altitude Altitude Units Of Measure Ft M D O probe only job site only Feet or meters at job site only Wrap D O Probe In Moist Cloth Press Enter When Stable MG L at job site only Conductivity Calibration Units Ms cm Ppt Place Probe In Ms cm
229. the 4220 are power MOS devices they are just as susceptible to static damage as CMOS ICs are Because of this risk certain precautions must be taken when working on these circuits The voltage levels present from static buildup due to walking over carpeted floors movement of woolen or synthetic clothes over chair seats workbenches etc are high enough to destroy CMOS circuitry when performing repair work Ideally all tools soldering irons etc should be grounded and work should be conducted on a grounded metal workbench with grounding straps worn on the wrists of personnel It is recog nized that in most field repair situations such precautions are impractical However certain extreme hazards must be avoided e Never perform any work in a room with a carpeted floor e Always roll up sleeves so that your arms are in contact with the working surface e Avoid using a work surface made of an extremely good insulator Plastic and glass are good insulators and should be avoided A metal surface is best a wood surface is acceptable Conductive grounding mats are available for work stations and are worthwhile if much repair is to be done e The degree of hazard depends on the level of humidity Be particularly careful if the work area is extremely dry or if the work is being done in cold seasons when indoor forced heating and outdoor low temperatures cause the relative humidity level to be very low e Keep yourself grounded
230. the canister before using it If the unit has been in use and has been returned for reprogramming you should clean it and inspect it as outlined in Section 6 of this manual You can also install the external desiccant cartridge which provides pressure equalization for the submerged probe pressure transducer Snap the external desiccant cartridge into the clamps mounted on the top of the cabinet Then attach the silicone tubing between the top of the desiccant cartridge and the black plastic elbow fitting mounted on the side of the case near the top This desiccator keeps moisture out of the submerged probe s ref erence port This port connects to a tiny tube that goes through the case and the submerged probe cable all the way to the trans ducer Like the case desiccant canister the external desiccant 3 1 4220 Flow Meter Section 3 Flow Meter Installation 3 2 cartridge should be colored blue If it is violet or pinkish you need to regenerate it You will need to remove the particles from the cartridge for regeneration you cannot regenerate the car tridge like the case desiccant canister The cartridge is plastic and will melt See Section 6 for details on regenerating the des iccant cartridge CAUTION Do not operate the flow meter with the door open or the desic cators saturated If you leave the door open moisture in the air will quickly saturate the desiccant canister and begin to attack electronic components Dust may
231. the sensor on the ring N CAUTION Always wear leather gloves when handling the rings either type The metal is finished but there is still a possibility of cut ting your hands on the edges Compress ring into gap to install in pipe then outward force of ring against pipe wall holds ring in place inside pipe Figure 4 3 Sensor Installed on a Spring Ring 4 4 4220 Flow Meter Section 4 Submerged Probe Installation Attaching the Sensor to the Attach the probe to the ring either by using two 4 40 x 9 16 coun Ring tersink screws or by snapping the optional probe carrier to the ring This second method of attaching the sensor allows for easy removal in case service is needed later N CAUTION Make sure the slots on the probe carrier are completely pressed onto the tabs on the ring This is particularly important where there is any possibility of reverse flows or where flows are of high velocity If the probe is not fully pressed onto the mounting ring tabs it might come loose in the stream and could possibly be damaged or lost To complete the sensor spring ring assembly procedure attach the sensor cable to the downstream edge of the ring Follow the cable routing shown in Figure 4 3 Other routing directions may affect measurement accuracy The cable can actually create a stilling well downstream from the sensor causing the level to read low Use the self locking plastic ties supplied with the ring Install t
232. this chart as a record For steps where a space is not provided on the sheet underline or circle your choices Some of the menus shown on this sheet may not appear on your flow meter The reason is that you must make choices from the first step forward that will prevent you from choosing other options later on Options can appear at several points of the program However menus pertaining to the options not chosen early on will not appear later An example is the alarm dial out feature This step requires your flow meter to have the optional modem If you do not have the modem no menus concerning dialout will appear If after filling out this chart you cannot make some menus appear that you need recheck your early steps to see that you have not accidentally locked yourself out of a path by an incorrect early selection If you only need to program the flow meter once you can write on this sheet If you are doing temporary surveys or expect the program to change make copies of these sheets and write on the copies Select Option Program Setup First choose Setup and work through the following menus Depth D O pH Reading Interval Level Reading Interval Continuous 15 Sec 30 Sec 1 Min 2 Min 5 Min D O ph Reading Interval Continuous 15 Sec 30 Sec 1Min 2 Min 5 Min C 1 4220 Flow Meter Appendix C Programming Worksheets C 2 YSI 600 Reading Interval Continuous 15 Sec 30 Sec 1Min 2
233. timeter YSA YSI 600 Salinity Parts per thousand YTD YSI 600 Total Dissolved Solids Milligrams per liter YTE YSI 600Temperature Degrees Celsius YSP YSI 600 Specific Conductance Millisiemens per centimeter YCO YSI 600 Conductance Millisiemens per centimeter YSA YSI 600 Total Salinity Parts per thousand YTD YSI 600 Total Dissolved Solids Milligrams per liter YTE YSI 600 Sonde Temperature Degrees Celsius SS Sampler Enable Status Logical B Bottle Number and Time Days CS Check sum does not include Unsigned long the check sum carriage return and line feed Note The output string for a given flow meter will have values only for those parameters it is currently measuring The order of the fields in this table is subject to change Additional data types may be inserted anywhere in the list Parsing routines for this output string should search by type identifier instead of depending on the position in the string If an active port has an error flag set the serial output will insert ERROR for the value You can enter the command line by connecting the interrogator cable with the interrogator sense line shorted to ground Then send a series of question marks until the flow meter transmits the unit s banner and prompt The number of question marks necessary is a function of the baud rate auto detection At the prompt enter DATA lt CR gt and the flow meter will respond with
234. tion 2 Programming If you select TRAPEZOID for the Manning flow conversion the following displays will appear MANNING TRAPEZOID SLOPE X XXXXX ROUGH X XXX Slope and roughness are entered as for ROUND PIPE previ ously Then MANNING TRAPEZOID TOP WIDTH X XXX FEET or meters Then MANNING TRAPEZOID BOTTOM WIDTH X XXX FEET or meters Returning to Step 2 FLOW CONVERSION TYPE if you select DATA POINTS the following will appear SELECT DATA SET e ONE e e TWO e THREE e e FOUR e NONE Then LEVEL UNITS FOR DATA POINT ENTRY eFTeeiINeeMeeMMe This allows you to enter data points that are in different units than what you are using Then FLOW RATE UNITS e GPM e GPS e e MGD e CFS e e CFM e M3S e M3H M3D If you press the right arrow key several times the following units will appear on the display FLOW RATE UNITS LPS CFD GPH AFD CFH CFM e M3M GPM gallons per minute GPS gallons per second MGD million gallons per day CFS cubic feet per second CFM cubic feet per minute M3S cubic meters per second M3M cubic meters per minute M3H cubic meters per hour M3D cubic meters per day LPS liters per second CFD cubic feet per day GPH gallons per hour AFD acre feet per day CFH cubic feet per hour DATA POINT flow conversion allows you to enter measured level and flow rate values f
235. tion 6 Maintenance and Service Detecting Lever Spool Shalt Print Head Ribbon life will vary greatly from one installation to another depending on how often the printer has to print When the char acters on the chart become difficult to read you should replace the ribbon If possible try to replace the ribbon at the same time you change the paper roll as it is easier to replace the ribbon when the roll of paper is out of the way To replace the ribbon 1 2 Turn the unit off If there is paper in the unit pull out the take up spool and unroll enough paper to get it out of the way so you can clearly see the two ribbon spools Each spool has a rib bon detecting lever pressing against the ribbon Note the direction the ribbon leaves the left spool and how it winds onto the right spool Take hold of one of the spools and rotate it slightly loosen ing the ribbon Hold the detecting lever away from the spool while gently pulling the spool until it comes free from its shaft Do the same with the other spool Lift the chart and take up spool out of the way and remove the ink ribbon from the printer mechanism noting how it threads through the unit Thread the new ink ribbon through the printer mecha nism 6 9 4220 Flow Meter Section 6 Maintenance and Service 7 Locate the three small pins on each spool of the ink ribbon and turn the spools so the pins face the gears on the two ribbon
236. tions of pH DO CONDUCTIVITY and TEM PERATURE will only appear on the menu if you have turned them on in steps 1 and 3 For any of these conditions you can set the point at which change in the selected condition causes the flow meter to send a flow pulse to the sampler The following menu will appear CONDITION e GREATER THAN LESS THAN RATE OF CHANGE e If you select GREATER THAN the flow meter will ask you to enter a maximum value for the selected condition which if exceeded will trigger the flow pulse If you select LESS THAN the flow meter will ask you to enter a minimum value for the selected condition If the condition falls below that value later the flow meter will send a flow pulse to the sampler If you select RATE OF CHANGE the flow meter will ask for two values one for the condition and the other for the time interval over which the change occurs 2 43 4220 Flow Meter Section 2 Programming 2 44 2 4 8 Step 6 Sampler Enable After you have determined what condition will signal the sampler and under what circumstances the following menu will appear SELECT OPERATOR e DONE OR e e AND SELECT OPERATOR allows you to trigger the sampler from a single condition or from two conditions Suppose you wanted to trigger the sampler from only one condition and that condition was LEVEL You would select level as the condition and then identify what change in LEVEL would be the
237. trigger Then you would select DONE for the SELECT OPERATOR step Selection of DONE will advance the flow meter to the next program step However suppose you wanted to select two conditions either of which would trigger the sampler In such a case you would select OR for the SELECT OPERATOR step The menu will return to the one listing the conditions This will let you define the second condition Now the flow meter will trigger the sampler when either condition changes Finally suppose you had a situation where you wanted changes in two conditions to occur before you signalled the sampler In that case you would select AND for the SELECT OPERATOR step Then you would define the second condition Now the flow meter will signal the sampler only after both conditions have changed The next screen on the flow meter after you have established the conditions for sampler pacing will request the following Entering 0 sends no pulses CONDITION TRUE PACING INTERVAL PACE EVERY X MINUTES This option allows you to send flow pulses periodically to the sampler during the time the conditions you established for sampler pacing are being met Then CONDITION FALSE PACING INTERVAL PACE EVERY X MINUTES This option allows you to send flow pulses periodically to the sampler during the time the conditions you established for sampler pacing are not being met Again entering 0 sends no pulses The operation of
238. troduction This section provides a general introduction to the 4220 Sub merged Probe Flow Meter It includes a description an expla nation of how the unit operates and technical specifications Manual Organization This manual provides the information necessary to operate maintain and perform minor service on the 4220 The manual is organized into five sections e Section 1 Introduction operation and specifications e Section 2 Keypad operation and programming for all 4200 series flow meters e Section 3 Installation and options application specific to this flow meter e Section 4 Installation of the Submerged Probe e Section 5 Options and Accessories e Section 6 Maintenance Service Troubleshooting and Upgrades Following Section 6 are appendices covering replacement parts accessory parts worksheets and safety information The 4220 uses a submerged probe level sensor to measure level The flow meter is normally used with some type of primary mea suring device for measuring flow in an open channel The 4220 has built in standard level to flow conversions that cover the vast majority of open channel flow measurement situations You can also enter a non standard equation or sets of data points that effectively plot a user derived flow profile for a flow stream The 4220 supports the Isco data acquisition storage and retrieval system with optional Flowlink software Using Flowlink the 4220 has enough memory to stor
239. ty precau tions must be taken The following discussions of safety proce dures are only general guidelines Each situation in which you install a flow meter varies You must take into account the indi vidual circumstances you are in Additional safety consider ations other than those discussed here may be required The following procedures are those used by Black amp Veatch a respected consulting firm and are published here by permission Field personnel must keep safety uppermost in their minds at all times When working above ground rules of common sense and safety prevail However when entering manholes strict safety procedures must be observed Failure to do so could jeop ardize not only your own life but also the lives of other crew members 1 Hazards There are many hazards connected with entering manholes Some of the most common hazards are Adverse Atmosphere The manhole may contain flammable or poisonous gases or the atmosphere may be deficient in oxygen Forced ventilation may be necessary Deteriorated Rungs Manhole steps may be corroded and not strong enough to support a man It may be difficult to inspect the rungs because of poor lighting Traffic Whenever manholes are located in the traveled way barricades and warning devices are essential to direct traffic away from an open manhole Falling Object Items placed near the manhole opening may fall and injure a worker in the manhole
240. uccessful message Click OK and close the program Your flow meter s software is now updated and ready for oper ation 6 17 4220 Flow Meter Section 6 Maintenance and Service 6 18 4220 Flow Meter Appendix A Replacement Parts The following illustrations show replacement parts for the 4220 Flow Meter Find their corresponding line numbers in Table A 1 for part numbers and descriptions Replacement parts can be purchased by contacting Teledyne Isco s Customer Service Department Teledyne Isco Inc Customer Service Department P O Box 82531 Lincoln NE 68501 USA Phone 800 228 4373 402 464 0231 FAX 402 465 3022 E mail IscoCSR teledyne com A 1 4220 Flow Meter Appendix A Replacement Parts MEE 8 Ne WA a Sg aton A 3 4220 Flow Meter Appendix A Replacement Parts Table A 1 Replacement Parts List No Part Number Complete Part Description 1 60 3214 139 Motor Assy Chart Drive 4200 4 60 3214 093 LCD Module Assy B L 5 60 3224 070 Case Bottom Sub Assembly 8 60 3214 098 PCB Assembly Keyboard 9 60 3224 071 PCB Assy 4220 CPU w Software 10 60 3224 056 PCB Assembly 4220 Amplifier 11 60 3214 120 Wiring Assy 12 VDC Sampler 12 60 3214 122 Wiring Assy Interrogator 13 60 3214 140 Wiri
241. uct during normal use may be retained on the product The user of the product must identify the hazards associated with the retained material in order to assess the waste disposal options Dispose according to federal state and local regulations Section 14 Transportation Information U S Department of Transportation Shipping Name Not classified as a hazardous material Not regulated Transport Canada Product Identification Not classified as a hazardous material Not regulated Number Section 15 Regulatory Information Not meant to be all inclusive selected regulations represented TSCA Listed Yes OSHA See section 8 above NIOSH See section 8 above Animal tests conducted in 1976 1978 18 month exposure at 15 mg m showed silica deposition in respiratory macrophages and lymph nodes minimum lung impairment no silicosis ACGIH See section 8 above DOT Not classified as a hazardous material Canadian Hazardous Products Act This product is not classified as a controlled product under the regulations pursuant to the Federal Hazardous Product Act e g WHMIS Canadian Environmental Protection Act All ingredients of this product are notified to CEPA and on the DSL Domestic Substances List Section 16 Other Information E 5 4220 Flow Meter Appendix E Material Safety Data Sheets Multisorb Technologies Inc Silica gel Indicating February 14 2009 Page 5 of 5
242. uo ed ON SAA pwarg Bulutew 101 19 up u eM POTE ON W SW XX X a qe s UBYyM 1 7U7 SS Ad Buneiquye gt rN ApeaiuayM 17u37 ssald uognjos sun XXX U 301d ade q 5 sun XXX plepueys AMPNpuo BUA A ydd w3 5w sun uojeiqye gt Ayapnpuo zuJ tH sa A uoneq 12 Pood ON S pupao BulweMwiol 19 tuum J01 13 oN V5W XX X aqeisuayM 17U7 ssaig Bugeiqued A A sApeal UYM 49 UY Ssald dnd uoneiqiyje gt Ulaqoid d a Aqua apnynye 104 SHUN W 4 Sa uoi ed eD poop pruano Bulusemysos 49 ON S ul ua BY J03 oN 56W XX X IJLSU YM PUJ SS ld Bunjeiqie gt zx Apeal UBYM 1 UF SSA1g dnd uonesqije gt ulaqoid deld zk Sa uo eq 11 gt pooy ON Sa puano ururem 10117 ON VOW XxX Xaiqeis uayMia Uq ssaid Buneigied LY pe su yMm 13 UJ SS ld uonnjos 5W XXX Ul aqolg d A HWW XXX VB XXX SINSSA1g JUJaWOIeg sqy pepuels O q A A PNYLIY NSS Ad JawWOoleg sqy p epues O q uo eaq iep O q 009 ISA SH A UO JeIG 2 p005 ON SA amp H APWAAQ Bulwew so 117 oN
243. us have been set press Enter The display will return to the Setup menu This time select OPTIONAL OUTPUTS with the arrow key Press Enter OPTIONAL OUTPUTS e ANALOG OUTPUT e SERIAL OUTPUT e ALARM BOX ALARM BOX refers to an external accessory used to signal alarms from flow meter measurements See Section 5 for more information about the Alarm Box Note that choice of SERIAL OUTPUT will eliminate ALARM BOX as an option Likewise choice of ALARM BOX will eliminate SERIAL OUTPUT as an option If you select any of these OPTIONAL OUTPUTS the flow meter will request that you turn them on or off If you are running on battery select OFF for all unused outputs ANALOG OUTPUT refers to the flow meter s capability of managing associated equipment through a 4 20 mA current loop The 4 20 mA current loop is a common method used to control industrial processes that are variable rather than just fully off or on At the lower value 4 mA the control is turned off 0 at 20 mA the control is completely turned on 100 In between rates range from 1 to 99 A typical application is a chlorinator which must vary in application of the chlorine gas as the amount of water passing through the system increases or decreases Current ranges other than 4 20 mA are also in use although they are less common than 4 20 mA Examples are 0 20 mA sup ported by the flow meter on the internal card only and for longer current loops 1
244. verter will not work properly If this 4220 Flow Meter Section 2 Programming occurs return to the 4 2 0 option and at the prompt enter 0 for the number of outputs activated This will restore the exter nal 4 20 mA converter capability MANUAL CONTROL will appear if you continue moving to the right RANGE will appear with the ANALOG OUTPUT menu if the optional internal 4 20 mA converter is present in the flow meter If you select RANGE the following will appear OUTPUT RANGE e 0 20 MA 4 20 MA This menu lets you select the current value for zero percent baseline compatible with your equipment internal 4 20 mA board only If you select SMOOTHING from the ANALOG OUTPUT menu the following will appear SMOOTHING e NONE e 15 SEC e 30 SEC 1 MIN The SMOOTHING option lets you stabilize operation of the outputs by preventing a rapid reaction to sudden sharp changes in the condition being monitored that quickly return to normal transients Selection of a smoothing interval will prevent the equipment controlled by the 4 20 mA loop from reacting too quickly too much or operating erratically A low pass filter algo rithm is incorporated in the software If you select the MANUAL CONTROL option from the ANALOG OUTPUT menu the following will appear MANUAL CONTROL OUTPUT 0 EXTERNAL OUTPUT 0 0 0 MA This option lets you control the operation of a 4 20 mA l
245. vice 4220 Flow Meter Section 5 Options and Accessories telephone company will provide advance notice in order for you to make the necessary modifications in order to maintain uninterrupted service If trouble is experienced with this equipment please contact the Teledyne Isco Customer Service Department 800 228 4373 or outside the U S A call 402 464 0231 for repair and or warranty information If the trouble is causing harm to the telephone network the telephone company may request you remove the equipment from the network until the problem is resolved The following repairs can be done by the customer None This equipment cannot be used on telephone company provided coin service Connection to Party Line Service is subject to state tariffs When programming and or making test calls to emer gency numbers Remain on the line and briefly explain to the dispatcher the reason for making the call Perform such activities in the off peak hours such as the early morning or late evenings The 4200T Modem is compatible with standard telephone lines and comes with a 12 foot cable The cable connects the flow meter s Modem connector to a standard telephone jack type USOC RJ11C supplied by the phone company You must mount the flow meter within 12 feet of this jack We are required by the FCC to provide the following notice This equipment generates and uses radio frequency energy and if not
246. when handling disassembled equipment After a unit has been opened for repair always touch the metal chassis before touching any of the circuit compo nents e Be especially careful handling the CMOS integrated circuits when they are removed from the rest of the 6 15 4220 Flow Meter Section 6 Maintenance and Service 6 16 circuitry Simply being connected to the rest of the circuitry provides some protection Most of the circuitry is well protected from damage caused by static discharge when the unit is powered up However an IC should never be replaced when the unit is turned on Individual CMOS semiconductors and built up printed circuit boards should always be transported in conductive packaging Foil is satisfactory metallized plastic bags work well Ordinary plastic bags and pink poly are not satisfactory unless the legs or leads are also stuck into a block of black conductive foam If purchased replacement compo nents do not come in marked protective packaging do not use them They may already be destroyed Once assembled and soldered printed circuit boards are easily damaged by improper repair procedures Do not attempt to remove components particularly ICs from printed circuit boards unless skilled at this procedure After a defective component is replaced the unit still may not work if excessive heat or pressure has broken the foil traces or pulled the cores from holes on the board 4220 Flow Meter Sectio
247. wing options will appear on the display YSI 600 CONDUCTIVITY PARAMETER e YSI T D S e e NOT MEASURED T D S stands for total dissolved solids T D S are measured in parts per thousand ppt TDS SCALE FACTOR 0 75 Total dissolved solids are estimated by multiplying conductivity by an empirical factor This factor can vary between 0 55 and 0 9 depending on the solubility of the ions in the water and its tem perature YSI 600 TEMPERATURE UNITS e F e e C e e NOT MEASURED e Select the appropriate temperature units FLOW CONVERSION TYPE e WEIR FLUME EQUATION e e MANNING DATA POINTS e WEIR FLUME weir or flume EQUATION equation MANNING Manning DATA POINTS data points If you select WEIR FLUME the following will appear TYPE OF DEVICE e WEIR ee FLUME e For detailed information on weirs and flumes refer to the Isco Flow Measurement Handbook Consulting the manufacturer of the specific weir or flume is also worthwhile Note that for weirs and flumes there is a preferred location for installing the level measuring device Proper mounting of the level measurement device and accurate measurement of the level in the flow stream at the calibration point are essential for accurate flow calculation by the flow meter If you select WEIR the following display will appear SELECT TYPE OF WEIR e V NOTCH e e RECTANGULAR e CIPOLLETTI
248. y you will press Enter start with step 1 and go on from there If the flow meter has been in use and you need to change only certain aspects of the program you would more likely use the Go To Program Step key With this key you can go directly to the program step you need to change which saves time If you change an entry and do not like it you can make the display revert to the original entry by pressing Clear Entry If you have already pressed Enter however the new value will be in memory To change it press Exit Program If you are in the middle of a program step with multiple substeps the flow meter will display Changes have been made in step press 0 to con tinue or 1 to discard If you press 1 the display will return to normal and the last step you were working on will revert to its previous selection Any program step you completely change before exiting will remain changed You can re enter the program with either Enter or the Go To Program Step keys If you become confused while pro gramming the best suggestion is to press Exit Program and start over Also remember that you can have the flow meter print a complete list of your program choices by exiting the program and by pressing the Print Program key as soon as the display returns to the normal operating condition displaying level and total flow etc 2 3 Description of Program Steps 2 3 1 Step 1 Operating Mode 4220 Flow Meter Section 2 Programming The

4220 Submerged Probe Flow Meter User Manual

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