MODEL 2114-OCF OPEN CHANNEL FLOW MONITOR User Manual
Contents
1. a ect cre cere eos are Doon A E D antec eke 5 23 GLOSSARY OF SYMBOLS Dee n Dato 5 25 PROBES eI s ba c petere e taf 6 APROBEINSTABEATIONas Ditto cm tton act 6 24 MECHANICAL INSTALLATION ettet 7 25 POWER PERMANENT CONNECTION POWERED MODELS ONLY 8 26 ELECTRICAL INSTALLATION icto potoit i test 9 2 7 CONNECTOR TERMINALS MAX WORKING VOLTAGES OR CURRENTS 10 STARTUP AND CALIBBATION te reperiet bte rte Mo seemed 11 81 NOTES ON VALUE ENTRY 11 GO POWERUP DISPLAY ied Dd erbaut ce ce Lens 11 MINIMUM SET WS 6 ote coi ete neis e ct ter cach 12 3 4 1 XMTR VALUES iota t bod seh 12 342 DATA FILTER 5 20 4 446 12 3 4 3 SELECT PRIMARY DEVICE TYPE 13 3 4 4 PRIMARY DEVICE SELECTION 13 84 5 ENGINEERING UNITS cett 13 eA Gin TAG NUMBER iones s t d este 14 3 4 7 MA SETTINGS delante M 14 948 RELAY SETTINGS tarte 15 249 CALIBRA TION aia da cu uS Lx S RTL cU 16 d TOTALIZATION eder Us 18 OPERATION x 5 6 i RTL SU OE 19 431 DISPLAY MENU DISP ertet re et bets breed 12. MODEL 2114 OCF OPEN CHANNEL FLOW MONITOR User Manual Technical Support Continental North America Toll Free 1 800 387 9487 Ph 1 905 829 2418 Fx 1 905 829 4701 ARJAY A Product of Arjay Engineering Ltd Oakville Ontario Canada www ArjayEng com 2114 OCF Open Channel Flow Monitor Continuous flow monitoring of open channel flumes and weirs Over 30 years of Arjay s field proven HF capacitance technology has been applied to the 2114 OCF open channel flow monitors The sensing probe continuously monitors stream levels for conversion to flow outputs capacitance technology does not foul or require cleaning no moving parts remote alarm unit mounts safely away from the stream 2114 OCF The 2114 OCF sensing probe monitors the capacitance field between the probe and it s concentric shield As the level of water increases in the stream the probe capacitance changes This level is proportional to flow based on the Manning equations for flumes and weirs Features and Benefits no moving parts remote electronics via standard twisted pair available with Intrinsic Safety Barrier for Hazardous Locations high corrosion resistant Teflon and stainless steel wetted parts HF capacitance technology does not require routine cleaning easy calibration and control set up e display of level flowrate and flow An AY totalization outputs for level flow and totalization The four line b
3. 0 0 Span CumD 20 000 e Enter the level in percent for Zero and Span values followed by the Enter key in each case The values are to be entered in the currently selected units After the Enter key is pressed for the Span value the following menu is displayed for additional mA settings SET mA OUT Action Direct Type 4 20mA Press 1 to change e The cursor will be on the Action setting line Pressing 1 toggles between Direct and Inverse action Direct action causes the 4mA to be output when the level is at the Zero setting and 20mA to be output when the level is at the Span setting Inverse action is the reverse of Direct action Press the ENTER key when done e cursor now drops to the Type setting line Pressing 1 toggles between 4 20mA and 0 20mA The 0 20mA as the name implies outputs a signal between 0 20mA instead of 4 20mA The 0 20mA setting generally offers a little better measurement resolution 14 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 3 4 8 RELAY SETTINGS For help in selecting the relay settings please refer to Sections 4 3 2 4 3 4 e Press the CONTROL key if not already in the Control Settings menu see mA Settings display above The press 1 for Relay Settings RELAY SETTINGS 1 Relay1 P 2 Relay2 3 Relay3 4 Relay4 5 Disable Alrms Disable relays Pressing 5 toggles between Enabling ENA and Disabling DIS alarms The current state is displayed on the right extr
4. a reference mark is made on the level probe which is then mounted so the probe reference is at the same level as the primary device reference level See Figure 2 0 in the installation section for details 4 21 AUTOMATIC CALIBRATION CALIB M This is typically done for a new installation It involves entering the independently and ACCURATELY MEASURED depth of water above the reference point of the primary flow device in the channel at 2 different points The unit then calculates 2 parameters SLOPE and OFFSET by correlating the 2 depth values with the corresponding measured capacitance The SLOPE is the change in capacitance in pF per inch change in level The OFFSET is the calculated empty vessel capacitance in pF The Automatic Calibration procedure is already described in Section 3 4 9 The first calibration point is generally 0 cm of depth This is most easily done by marking a reference point on the probe which when installed will be in level with the reference point of the primary device For weirs the reference point is the lowest edge or lip of the weir For Flumes it is typically the channel floor at a desinated point in the channel The second point is generally the max depth of flow expected above the primary device reference level NOTE The accuracy of the calibration depends in large part on the accuracy of the 2 measured levels entered during calibration The resolution of measurement should be 2 decimal places to get the best acc
5. OCF Monitor uses a high precision and highly repeatable RF technique to measure capacitance which in turn is used to calculate depth and then flow rate A capacitor is formed by the Teflon sheathed level probe and the stainless steel concentric shield around it The capacitance of this arrangement changes in proportion to the level of the water in which it is immersed so the depth of the water in the channel may be calculated The depth is related to the flow rate for any primary flow device so the flow rate is then calculated from the depth All Level Ease 2000 Series Controllers and Transmitters are intelligent and can perform a number of tasks simultaneously multitasking software This means that even while in another menu the capacitance is always be measured in the background For example if the Filter value is being set in the SETTINGS submenu SETUP SETTINGS menu the level value relay alarms and mA outputs are still being updated This is important since keypad entries are typically slow and sometimes an operator might forget to return the unit to the normal DISPLAY menu in this case Alarm relays and mA output are still updated In some menus however the mA output and or the Alarm Relays are not updated on purpose for example while in the calibration menu the unit assumes that the unit is being calibrated and so the calculated level may be erroneous In this case the mA and Alarm Relays are set to the inactive states Periodically ev
6. of the transmitter e With an ACCURATE MULTIMETER MEASURE THE mA OUTPUT The Multimeter should have at least one place of decimal e Enter this value at the prompt and press the Enter key A maximum tolerance adjustment of 396 is allowed the entered value must be in the range of 19 4mA to 20 6mA If a value out of this range is entered an error is flashed on the screen If this occurs contact an Arjay representative for assistance FILTER ENGINEERING UNITS These settings are described in Section 3 24 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 5 0 CLEANING AND MAINTENANCE 5 1 CONTROL UNIT The 2000 series level controllers do not require specific maintenance There are no moving parts If required the units may be cleaned with a clean damp cloth Make sure power is shut off before bringing anything wet or damp in contact with the unit Do not use organic solvents which may damage or dissolve the plastic label or silkscreen text Spray cleaners should also be avoided to prevent damage to components within the enclosure 5 2 LEVEL PROBE Periodically the level probe may be washed down with water to prevent buildup Only the probe and not the probe head enclosure a the top of the probe should be cleaned Direct the water through the holes slots in the shield so the probe inside the shield can be cleaned 25 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 6 0 TROUBLESHOOTING CONDIT
7. very high resolution measurements A probe mounted to measure the depth of flow in the channel of the primary flow device weir flume The capacitance of this arrangement is directly proportional to the water level in the channel The 2000 OCF converts the capacitance to depth then uses the depth to calculate the flowrate based on the primary device type selected For streams without a primary device a 5 point profile table of level vs flow can be entered The 2114 OCF will develop a point to point curve of flow vs level The user must prepare known flow vs level values prior to entry Probe input and mA output are galvanically isolated to minimize electrical interference The 2000 OCF monitor may be located up to one km away from the probe via inexpensive 2 wire shielded cable The 2000 OCF monitor offers a 20 character by 4 line LCD and 16 key membrane keypad for detailed data displays plus ease of calibration and setup Flow rate and totalized flow is displayed in user selectable engineering units In addition a bar graph gives a quick indication of level RS 485 Network 1 2 Wire 2 Wire Isolated input shielded PRIMARY Intrinsic Safety Barrier FLOW Optional DEVICE CAPACITANCE Isolated 4 20mA LEVEL PROBE Probes upto 1km away 220 115VAC or 24VDC 4 SPDT RELAY CONTACTS BLOCK2k DRW Figure 1 0 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 OPERATION
8. 340 d 431902 01331 Q O Q O Q O Q O Q O Q O O 01190 813 5 NDII23NND2 SS320Bd LdN 2 CGNNDYD 013 5 LON JAIA NO 31vavd3S 40 Q30NnD3D 315 5532089 168 6 1 319 1 93 SI NDI12Nnf 09 8 N30 134 BINS 310N 9D JAAM 1315141 13013 5 sinovu 13A31 38 S380ud OOOOOOOOOOOCO A IHN3SSV 19 Li NN N 38U3d i GQ I3IHS 5 LON DG 9 19214123213 01 0813 5 9 13 0 55 12 NDI123NND2 LINGNOD 379433 072 daNDAD 5597 NOILINAT WONINNIY 1592
9. 9 4 2 CALIBRATION GAWIB iota 19 4 2 1 AUTOMATIC CALIBRATION CALIBM e 20 422 MANUAL CALIBRATION CALIBV2 e 20 42 8 SLOPE AND OFFSET 8 21 45 CONTROL MENU TOON Su PLE LEE 21 MA SERVINGS 21 435 RELAY SETTINGS 6 21 433 RELAY SETTINGS SELECTION 22 44 SETUP MENU SETUP ettet 23 44 1 PMC 2000 Manual SETUP V 1 2 23 445 DIAGNOSTICS SETUP X9 iac tte acid 23 44 3 SETTINGS MENU SETUP 3 23 CLEANING AND MAINTENANCE ettet ttt ttti 25 Bin BONTROLEUNETU 01 d td 25 bo EV EURO BE 25 TROUBLESHOOTING DU 26 CONTROLLER SETTINGS SHEET ttt ttt ttt ttt ttti 27 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 1 0 INSTRUMENT OVERVIEW 11 FEATURES 2 Point single point depth calibration Galvanically isolated probe inputs RF Technology Arjay pulse card system for simple safe remote control calibration and maintenance Up to 4 Differential Alarm relays SPDT 7A contacts Isolated mA output selectable as Direct Inverse amp 4 20 0 20mA output with offset capability Optional RS 485 Modbus protocol No moving parts 1 2 DESCRIPTION The unit senses level using a RF capacitance measurement technique for
10. Both of these values are useful in determining calibration or performance problems DIAGNOSTICS 12 04pF 4461 48 2 1 4mA 2 20mA 3 Other Pressing key 1 forces the mA output to 4mA Similarly pressing key 2 forces the mA output to 20mA Any other value between 0 and 20 may be set by pressing 3 for Other then entering the desired mA output value This feature is convenient to check the performance of external recorders or PLC s which read the mA output The mA output reverts back to its actual level when the normal Display Menu is selected 443 SETTINGS MENU SETUP 3 This menu sets the digital filter and the engineering units In addition the mA output may be trimmed for maximum accuracy Also Software revision may be viewed kkkkkk SETTINGS kkkkkk 1 Filter 2 Units 3 Prm Dev 4 mA Trim 2114 Rev 2kOCF04 mA TRIM This procedure trims the mA output for maximum accuracy by compensating for the mA output circuitry tolerances THIS PROCEDURE IS PERFORMED ON EVERY TRANSMITTER AT THE FACTORY AND IS TO BE PERFORMED BY AUTHORIZED PERSONNEL ONLY IF IMPROPERLY DONE THE ACCURACY OF THE mA OUTPUT IS AFFECTED Under certain conditions this procedure may be undertaken in the field with Arjay s permission e Press the SETUP key then 3 for Settings and then 4 for mA Trim The unit will put out what it thinks is 20 0mA 23 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 e Disconnect any load connected to the mA output
11. ION DO THIS DISPLAY SCREEN SHOWS Error No Xmtr Signal The unit is not receiving a frequency signal from the remote PMC 2000 level transmitter in the probe head Check wiring If wiring checks out call Arjay technical support An adjustment may be made at the controller DISPLAY SCREEN SHOWS Error Setup Values Bad This indicates that at least one of the calibration or setup parameters has been corrupted Compare ALL parameters with the table in Section 6 to find out which one Call Arjay technical support DISPLAY SCREEN SHOWS Error pF out of range The calculated capacitance is out of the legal ranges Check if the A K C values entered correspond to t he A K C values of the PMC 2000 transmitter Check the integrity of the Teflon sheath of the probe If this has beem damaged water could cause an electrical short circuit between the probe within the Teflon sheath and the ground reference In this case a very high capacitance is usually registered Check the Xmtr frequency in the Diagnostics menu If the frequency is much below 19 00 Hz then a short circuit should be suspected To confirm open the probe head and disconnect the blue wire from the probe to the PMC 2000 Using a Digital Ohm meter measure the resistance between the metal enclosure and the probe tip or end of now disconnected blue wire Make sure that fingers and hands do not touch the metal portion of the probes of the Ohm meter since this cou
12. MC 2000 level transmitter calibration value Result of a successful Calibration Capacitance Slope change per inch change Used to calculate the P depth in cm from capacitance and flow rate from depth and primary device type Result of a successful Calibration Calculated capacitance of an empty vessel Used to calculate Offset the level and Eng Used to calculate the depth in cm from capacitance and flow rate from depth and primary device type Zero Zero Level value for mA output 0 0 Span Full Scale Level value for mA output mA Action Direct 20mA when level at Span or Inverse 4mA DIR when level is at Span Relay1 Volume Alarm Relay 1 will pulse for half a second every per pulse time this amount of flow is measured Relay Hi Set Alarm Relay 2 High Setpoint Alarm condition if flow is above this value Relay Lo Set Alarm Relay 2 Low Setpoint Alarm conditions cleared if flow is below this value Relay2 Action Set for high or low acting see Sections 4 3 2 High 4 3 4 Relay2 Failsafe Set for Failsafe or Non Failsafe Off Relay See Relay 1 Alarm Delay description 0 sec Delay Relay3 Hi Set Alarm Relay 3 High Setpoint Alarm condition if flow is above this value Relay3 Lo Set Alarm Relay 3 Low Setpoint Alarm conditions cleared if flow is below this value 27 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 FACTORY USER PARAMETER DESCRIPTION SETTING SETTTING
13. RO REFERENCE PROBE MOUNTED SO REFERENCE MARK IS AT SAME LEVEL WITH ZERO REF OF WEIR AND LOCATED BEHIND THE DRAWDOWN AREA Figure 2 0 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 2 4 MECHANICAL INSTALLATION This unit to be installed within a suitable enclosure in accordance with the Canadian Electrical Code CEC or other applicable local and country codes MODEL 2100 2300 SERIES LEVEL CONTROLLERS ENCLOSURE FRONT VIEW 4 65 Hole diameter 0 150 6 bolt size www arjayeng com 4 places typical ets 4 1 Find a location on a vertical structure to mount unit about eye level in a protected area away from direct condensation The structure should be able to support the weight of the unit 2 Mount the unit via bolts into the vertical structure using the 4 mounting holes The location dimensions are shown above MECHINST2k DSF MECHANICAL INSTALLATION AND DIMENSIONS Figure 2 1 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 2 5 1 POWER PERMANENT CONNECTION AC POWERED MODELS ONLY Connection to the building wiring system shall be in accordance with the Canadian Electrical Code Part 1 in Canada the National Electrical Code ANSI NFPA 70 in the USA or the local electrical codes of the country where the equipment is being installed An external mains switch or external over curren
14. Set for high or low acting see Sections 4 3 2 Relay3 Action 4 4 for details Eigh Relay3 Failsafe Set for Failsafe or Non Failsafe Off Relay4 Hi Set Alarm Relay 4 High Setpoint Alarm condition if flow is above this value Relay4 Lo Set Alarm Relay 4 Low Setpoint Alarm conditions cleared if flow is below this value Set for high or low acting see Sections 4 3 2 Relay4 Action 1 5 for details High Relay4 Failsafe Set for Failsafe or Non Failsafe Off Master Alarm Relay Enable If Off this will prevent relays from being reflecting the Alarm condition Alarm Enable The relay will remain in the non alarm condition ON base on the Fail safe switch setting on the relay modules Digital Filter response time in seconds Used to Filter smooth out level fluctuations caused by splashing 0 0 etc 28 up 059988 sail 2m AN 1 SULINDH MOT HITL Ie soupur Ul eje suorsueup IIV 130 sd Sv 3NNVH23 N3dB 9j NDI123NNDO lroj joe d W O JON 4J30 vit2 SLOVLNOD Aa BEI 193r 03d OY AVIUV SNOILISNNOD vB N E SNOISIA3H 70002 0 2d Papa Suv LAVAN 252 51 lt 2251 d330 97 X 21 X G vI NADHS SV SSV 1583HIJ YSqWNN WdOW Jal S 12N3 19 0 140 1 24 2 CYNDI 190 813 5 2I81N32ND2 55916
15. USER INTERFACE Display Keypad Network PERFORMANCE Range Resolution Accuracy INPUTS OUTPUTS RELAYS mA output Relays The unit senses level using a RF Capacitance measurement technique for very high resolution measurements A concentrically shielded probe mounted in the flow channel measures the capacitance The capacitance of this arrangement is directly proportional to the level of flow in the channel which is used to calculate the flow rate based on the primary flow device selected or table selected 4 line X 20 Character LCD with backlight bar graph 4x4 Membrane type matrix RS 485 modbus protocol The unit measures capacitance in pF The resolution figures for Capacitance are guaranteed Level Measurement figures are for typical applications Fow accuracies are also a function of the primary device 0 1000pF recommended for the resolution figures listed below 0 10 000pF may be measured with less resolution and accuracy Capacitance 0 03 of Full Scale worst case Typical 0 01 Level 0 02 of Full Scale 6ft concentric shield probe in water 0 2 of Full Scale 2 wire plus shield connection to an Arjay PMC 2000 module located in any Arjay Capacitance probe head Installation category I 0 05 resolution sourced into 900 Ohms maximum load up to 4 SPDT 7A 120VAC contacts Each relay may be set for differential control hi and low setpoints Programmable time delay 0 99 seconds Hi Fail safe selectabl
16. abnormal condition such as a high flow rate the positive action may be the same state desired in the event of a power or instrument failure 3 Identify the type of relay action required if the positive action is required when the flow exceeds the high control point then select High Action for the relay If the positive action is required when the flow falls below the low control point then select Low Action 4 Identify the relay contacts to use either Normally Open or Normally Closed The contacts used are dictated by the failsafe setting and if the positive action requires the application of power or removal of power to the controlled device The following table summarizes the settings for all possible requirements DESIRED CONTACT CONDITIONS DO THIS BELOW ABOVE INSTRUM Or FAILSAFE RELAY USE LOW SETPOINT HIGH SETPOINT PWR FAILURE SETTING ACTION CONTACTS 1 Open Closed PA Open No High Acting NO 2 Open Closed PA Closed Yes High Acting NC 3 Closed PA Open Open No Low Acting NO 4 Closed PA Open Closed Yes Low Acting NC 5 Open PA Closed Closed No Low Acting NO 6 Open PA Closed Open Yes Low Acting NC 7 Closed Open PA Closed No High Acting NO 8 Closed Open PA Open Yes High Acting NC positive action desired such as turning on a pump e Conditions 1 3 5 7 are typically for control applications where the positive action i e turning on a pum
17. acklit display provides menu driven set up functions and a display of flowrate and totalization Technical Specifications Control Unit Operating Temperature Power Input Analog Output Interface Display Alarm Relays Standards Enclosure 0 C to 50 C 24 vdc or 110 vac or 220 vac 4 20 mA proportional to flow RS 485 Modbus available backlit display of level flowrate and totalization 4 x 10 amp SPDT dry UL CSA CE Type AX IP65 Technical Specifications Probe 0 C to 50 C CSA Class 1 Zone 1 and 2 Div 1 and 2 Groups A B C D also available with an Intrinsic Barrier option Operating Tem Approval perature All calibration control relays and power wiring is available at the main control unit This can be safely mounted up to 1 km away from the stream Arjay Engineering Ltd 2851 Brighton Road Oakville Ontario Canada L6H 6C9 tel fax N America email web The unique PMC circuit design exclusive to Arjay immediately converts the sensor signal to a frequency pulse for furtherance to the controller Arjay SS 06 1 905 829 2418 1 905 829 4701 1 800 387 9487 arjay arjayeng com www arjayeng com D e 505 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 2 0 3 0 4 0 5 0 6 0 7 0 TABLE OF CONTENTS INSTRUMENT OVERVIEW us od atem ele 3 12 DESCRIPTION sth ne ae daly 3
18. ary device is used 1 Pressthe SETUP key From the Setup menu press 3 for PRIM DEV primary device 2 From the table below select the primary device to be entered o to 23 For example to select a Contracted Rectangular Weir select 15 Key in the number and press ENTER The display will confirm your selection Press 1 to confirm or 2 to select another 3 For Contracted Rectangular Weirs and additional dimension is required channel width At the prompt enter this value in Press the ENTER key to enter the value and go back to the main SETUP menu 4 manual table is entered the flow values must be entered L S The level values must be entered in inches The software will automatically convert these values to display in the chosen units under normal operation 3 4 44 PRIMARY DEVICE SELECTION TABLE Selection Device Type V NOTCH 22 V NOTCH 30 V NOTCH 45 V NOTCH 60 V NOTCH 90 PARSHALL 2 PARSHALL 3 PARSHALL 6 PARSHALL 9 PARSHALL 12 c 10 PARSHALL 18 11 PARSHALL 24 12 PARSHALL 36 13 PARSHALL 48 14 PARSHALL 60 15 RECTANGULAR CONTRACTED 16 RECTANGULAR SUPPRESSED 17 CIPOLLETTI 18 PALMER BOWLUS 6 19 PALMER BOWLUS 8 20 PALMER BOWLUS 10 21 PALMER BOWLUS 12 22 PALMER BOWLUS 15 23 PALMER BOWLUS 18 24 MANUAL TABLE ENTRY 3 4 5 ENGINEERING UNITS One of 8 units may be selected These units affect the displayed readings alarm values and the mA output zer
19. be Max working voltage to Earth Ground 15VDC Overvoltage Category I 10 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 3 0 STARTUP AND CALIBRATION This Section is provided for minimum setup For a more detailed description of features please refer to Section 4 0 RELAY LEDS ON HI ACTING ALARM 4 line x 20 char LCD STATUS LED GRN d 4 STATUS RED ERROR www arjayeng com Membrane keypad DISPLAY DISPLAY KEY Displays Level Information Also used as backspace in value entry CALIBRATE KEY For probe calibration menus CONTROL KEY For 4 20mA output and Alarm Relay settings SETUP KEY For configuration and diagnostics USRINT2k dst USER INTERFACE Figure 3 0 3 1 NOTES ON VALUE ENTRY When entering in numeric values the cursor can be backspaced to correct mistakes by pressing the DISPLAY key This is only true if the cursor is not at the beginning of the displayed value in which case the DISPLAY menu is entered Values may be entered with any number of places of decimal If the entered value is out of the allowed limits the system displays the limiting value for 2 seconds During value entry the capacitance and flow values are still being constantly updated in the background Apart from the CALIBRATION menu and the DIAGNOSTICS menu in all other menus the Alarm re
20. cm CAPACITANCE PROBE A A D Figure 3 1 17 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 1 POINT AUTO CAL PROCEDURE This is a single point procedure It assumes a 2 point calibration has already been successfully done The object of this type of calibration is to trim the displayed depth while the pressures sensor is in its installed position 1 Press the CALIBRATION key to enter the main calibration menu then 1 for 1 point Auto cal 2 Accurately measure the depth D of water above the reference point on the level probe This is also the depth of the water above reference point of the primary device Enter this value followed by the ENTER key THIS CONCLUDES THE 1 POINT CALIBRATION PROCEDURE 3 5 TOTALIZATION 1 The unit will totalize flow as long as a flow rate input exists To reset to 0 press the CALIB key Press 5 for ClrAcc Clear Accumulation The display will ask you to confirm that you want to reset the totalizer If yes press ENTER then press DISPLAY If no press DISPLAY directly THIS COMPLETES THE SETUP AND CALIBRATION PROCEDURE NO FURTHER SETUP OR CONFIGURATION IS REQUIRED THE NEXT SECTION 4 IS FOR REFERENCE ONLY 18 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 4 0 OPERATION IN THE FOLLOWING TEXT A MENU WILL BE DISPLAYED AS A PATH FOR EXAMPLE THE AUTOCAL MENU CALIB 1 CALIB key then 1 for AUTOCAL SETTINGS MENU SETUP 3 SETUP key then 3 for SETTINGS The 2000
21. e ELECTRICAL SPECIFICATION Power Fuse 120VAC 230VAC 24VDC 10 specify at time of order 15VA max T160mA 250VAC Note For 24VDC power input the fuse is a 5mm x 20mm 1 2A Fast Blow type This fuse is installed within the unit and must be installed by qualified personnel only The equipment belongs to Pollution Degree2 Installation category II MECHANICAL SPECIFICATION Enclosure Dimensions Weight sub plate mount optional wall Mount Type Nema 4X enclosure 5 3 x 8 5 x 2 5 Wall Mount 4X 14 x 12 x 77 2 2 kg 516 max Wall Mount Nema 4X 6kg 13165 ENVIRONMENTAL SPECIFICATION Environment Altitude Temperature RH Indoor or sun rain shielded use up to 2000m 0 50 C sun rain shielded Max 80 RH for temperatures up to 31 C decreasing linearly to 50 RH at 40 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 2 0 INSTALLATION NOTE If any damage to the instrument is found please notify an Arjay Engineering representative as soon as possible prior to installation All installation must be undertaken by qualified personnel WARNING If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired 2 1 GLOSSARY OF SYMBOLS Attention consult accompanying documents Attention veuillez consulter les documents ci joints Fuse Coupe circuit fusible Protective Earth Terre de protection Direct C
22. ected to be set up Set the remaining relays 2 4 in the same way Note For models 2 0 and 2xx2 which have 0 and 2 relays respectively the front panel LED s still present for visual indication of alarms even though the corresponding relays are not installed 3 4 9 CALIBRATION The 2000 OCF is calibrated in cm Calibration ensures the 2000 OCF correctly reads the water height above the primary device s reference point There are a number of ways to calibrate the unit Auto cal 2 point Auto cal 1 point Manual Cal Te Direct Slope and Offset entry 2 Point Auto Cal This method is a 2 point procedure It is typically done at least once For convenience it may be performed using a bucket of water The procedure involves subjecting the capacitance depth probe to 2 known depths A two point Auto cal procedure is typically done the first time Thereafter the calibration can be trimmed using a 1 point Auto cal 1 Point Auto Cal This method is a single point procedure It is typically done after a successful 2 point Auto cal For example if the displayed depth is10cm but the actual depth is then the 1 Point Auto cal can trim this by simply entering the current true depth i e 9cm in this case Alternatively if the 16 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 actual flow rate is known then the theoretical depth may be determined using tables for the particular primary flow device bei
23. eme of the bottom line of the LCD A Disable setting will disable Alarm relay alarms even if an Alarm condition exists The factory default setting is ON ENA which allows Alarm relays activation Relays can be enabled AFTER calibration and setup are complete e Press 1 to setup Relay1 Relay 1 is a pulsed output that is energized for half a second every time a selectable volume flows by Enter the volume of flow per pulse and press the Enter key RELAY SETTINGS Enter Cum pulse Value for Relay 1 1000 From the relay setup screen press 2 to setup Relay2 Relays 2 4 are general purpose differential alarm relays Each must be set up in turn RELAY 2 SETTINGS Action HI 1 for LO Flsafe OFF 1 for ON e Next select the Alarm Action by pressing 1 to toggle between High and Low action See Section 4 3 2 4 3 4 for help in selecting this value Press ENTER after selecting Action e Next select the Failsafe type by pressing 1 to toggle between On and Off See Section 4 3 2 4 3 4 for help in selecting this value Press ENTER after selecting the Failsafe type e After selecting the Failsafe setting the following menu is displayed RELAY 2 SETTINGS Hiset CumD 15 000 Loset CumD 12 000 On Delay sec 0 e Enter the High and Low alarm Hiset and Loset values in percent level Press Enter after each entry e f Differential control is not desired then set the High and Low alarms to the same value e Finally
24. ery 5 10 seconds the unit does a self diagnostic If major errors are found they are displayed on the LCD These error messages take precedence over the flow information in the DISPLAY menu ONLY All other menus may be entered and parameters viewed or changed In case of errors this allows the user to enter the DIAGNOSTICS menu and check the capacitance or frequency etc 4 34 DISPLAY MENU DISP This is the default or normal operating screen It shows OPEN CHANNEL FLOW 7 500 CumD 2 cm 32 000 Cum 36363636 36363636 3636 The 2nd line shows the depth of water in and the flow rate in the chosen flow units The 3rd line shows the totalized flow The 4th line shows a bar graph of the flow scaled between the 4 20mA output zero and span values The resolution is 596 4 2 CALIBRATION CALIB The 2000 OCF is calibrated in cm Calibration ensures the 2000 OCF correctly reads the water height H above the primary device s reference point The flow rate is automatically calculated from the depth There are a number of ways to calibrate the unit 1 Auto cal 2 point 2 Auto cal 1 point 3 Manual Cal 4 Direct Slope and Offset entry CALIBRATION 1 2 Manual 3 Auto 2pt 4 SIp Off 5 Clear Accum 19 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 Note all depth values mentioned below refer to the depth of the water above the reference level of the primary flow device For ease of calibration
25. inals A PLEASE OBSERVE CONNECTION POLARITY AS SHOWN OR DAMAGE MAY RESULT To PMC 2000 card in Arjay level probe head Shield connected to terminal at 2xxx only not connected at PMC 2000 Isolated mA sourced output not loop powered 24VDC input for DC powered models Optional RS 485 Network connection Refer to the manual text for maximum working voltages amp currents for these terminals Connect to Earth Gnd for DC powered models Q POWER 250V 160 AVAILABLE RELAYS 2xx0 None 2 2 Relay 1 amp 2 2 4 Relay 1 4 L Ground Strap to Enclosure lug FFA RELAY4 ean pns AC POWER 120VAC gt L N G 230VAC gt L1 L2 G Elecinst2k1 dsf POWER OPTIONS 24VDC 120 or 230 are specified at time of order See Serial Number Label on unit to determine which power option is installed ELECTRICAL CONNECTIONS Figure 2 2 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 27 CONNECTOR TERMINALS MAX WORKING VOLTAGES OR CURRENTS TERMINALS DESCRIPTION MAX VOLTAGE or CURRENT NET amp Optional RS 485 communication port 10V between NET and NET 24VDC INPUT Optional 24VDC power input 24V 10 between the and terminals mA OUTPUT 4 20mA or 0 20mA constant current source Max output current Max voltage 24VDC 10 PROBE INPUT Connection to remote Arjay capacitance pro
26. is set at 20 000CumD then the mA output is scaled between these two points with the mA output indicating low level at 100CumD and high level at 20 000CumD The mA output may also be set to Direct or Inverse Acting In Direct Action the mA output is 4mA when the level is at the Zero level and 20mA when at the Span level In Inverse Action the mA output is 20mA when the level is at the Zero level and 4mA when at the Span level 4 3 2 RELAY SETTINGS Arjay Level controllers may be used to control devices such as pumps valves and other equipment based on flow rate values Relay 1 is fixed as a totalizer output It is energized for about half a second every time a selectable volume flows by The units of totalized flow depend on the flow rate units selected For CumD flow units the totalizer value is Cum Relays 2 through 4 allow 5 parameters 1 HIGH ALARM or CONTROL POINT This value is specified in flow rate Above this value relay action is taken depending on the Relay Action and Failsafe settings 2 LOW ALARM or CONTROL POINT This value should be less than the High control point Below this value relay action is taken depending on the Relay Action and Failsafe settings 3 RELAY ACTION High or Low Action Selecting high action will energize the relay when the flow exceeds the high control point for at least the time delay period An LED on the front panel for the appropriate relay indicates the alarm condition The relay is de e
27. isplays the kind of System Error See the troubleshooting guide for details 3 4 MINIMUM SETUP 3 4 1 XMTR VALUES Press the SETUP key then 1 for PMC 2000 then 2 for Manual This menu enters the PMC 2000 level transmitter module s calibration parameters These parameters are printed on a label attached to the PMC 2000 transmitter connector located in the probe head enclosure These values should also be noted down in the SETTINGS table located at the end of this manual On pressing 2 for Manual PMC 2000 SETUP Enter xmtr A value 0 03316 e Enter the PMC 2000 module A value then press Enter The unit will prompt for the and C values Enter these followed by pressing the Enter key in each case 3 4 DATA FILTER SMOOTHING e Press the SETUP KEY if not already in the Setup menu then press for Settings then 1 for Filter SETTINGS Enter filter time in seconds 0 0 e Enter the data response time in seconds for the unit to respond to a sudden change followed by the Enter key For example a 5 second setting means the calculated value of the capacitance and resulting values of depth and flow will take 5 seconds to reach their final values as a result of a sudden change of depth This parameter is used to minimize fluctuating readings 12 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 3 4 3 SELECT PRIMARY DEVICE TYPE You must select the primary device to be used or the table selection if no prim
28. lays and the mA output are also updated 3 2 POWERUP DISPLAY After mechanical and electrical installations of the probe s and the controller have been successfully completed power up the unit The following startup screen will be displayed for about 3 seconds 11 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 Arjay Engineering Level Ease 2000 Rev 3 00 2KOCF02 S N 001234 The Rev line displays the Hardware Revision followed by the Software Revision separated with a The Serial Number is displayed by itself on the bottom line The values shown above are for example only actual values may differ After the startup screen the LCD should show a screen similar to OPEN CHANNEL FLOW 0 00 CumD 0 00 cm 0 Cum NOTE The shown values are for example only The 2nd line shows the flow rate and depth above the weir reference point The flow rate is displayed in the selected engineering flow units One of 8 engineering units may be selected in the configuration menu as described in the next sub section The depth units are fixed in The 3rd line shows the accumulated flow in eng units set by the flow rate units For example if Cum D is selected for the flow rate then the accumulated flow will be in Cum The 4th line displays a bar graph of the flow rate The bar graph is scaled between the mA output Zero and Span values The Status Indicator see figure 3 0 should be green If this is red then the LCD d
29. ld show a lower resistance 1 10 Mohms The reading for a normal probe should be infinite or OL on a digital Ohm meter Contact an Arjay representative The flow reading is erratic or unstable Make sure the correct primary device has been selected Check the slope value Calibration menu slope offset If this is lower than about 1 pF then recalibrate The slope should be around 4 pF per inch for water for a probe with a 2 inch concentric shield Check if the probe is being splashed by incoming water or if there are moving parts especially metallic close to the probe If this is true then try increasing the Filter time setting Readings are not accurate as the level moves away from the calibration point points Make sure the correct primary device has been selected Recalibrate the unit 26 Model 2000 Series OCF 21140cfum23 doc Rev 2 8 70 CONTROLLER SETTINGS SHEET Checked by Model Number Serial Number Software Rev FACTORY USER PARAMETER DESCRIPTION SETTING SETTTING The flow Primary Device type Weirs and Flumes Primary Device of various types and sizes are supported Eng units chosen to display flow information in Flow Daits addition to the depth in Probe A value Probe PMC 2000 level transmitter calibration value Probe K value Probe PMC 2000 level transmitter calibration value Probe C value Probe P
30. nergized with no delay when the flow falls below the low control point Selecting low action will energize the relay when the flow falls below the low control point for at least the time delay period The relay is de energized with no delay when the level rises above the high control point 4 FAILSAFE Failsafe typically means that the relay is normally when not in an alarm condition held in an energized state In an alarm condition the relay is de energized i e identical to when the 21 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 instrument power is shut off The rationale is that the alarm condition should match the Power Fail condition 5 RELAY DELAY Minimum time in seconds for an alarm to exist before the corresponding relay is set to its alarm state The relay alarm state depends on the Relay Action and Failsafe settings 4 3 3 RELAY SETTINGS SELECTION T Identify the positive action required in the control application such as turning on a pump opening a valve or sounding an alarm Note the time delay is applied to the start of the positive action also the corresponding LED is turned on to indicate the positive action 2 Identify if Fail Safe condition is required in an alarm condition For control applications relay used to control pump etc the positive action may also be viewed as the opposite state desired in the event of a power or instrument failure For alarm applications relay used to indicate an
31. ng used This depth may be entered in the 1 Point Auto Cal to trim the calibration Manual Cal This is only done if 2 depth points and their corresponding capacitance values from the depth probe are known This information is captured after a successful 2 point Auto cal 2 POINT AUTO CAL PROCEDURE Press the CALIBRATION key CALIBRATION 1 Auto 1pt 2 Manual 3 Auto 2pt 4 SIp Off 5 Clear Accum Press for 2 point Auto Cal e Make areference mark on the capacitance probe at a distance from the bottom of the probe so that this reference point can be located at the same level as the reference level of the primary device see Figure e Fill a bucket or container at least 30cm deep with water The level probe may also be calibrated in its installed position in the flow channel however it will be necessary to move the probe up down during calibration Lower the capacitance probe in the bucket or channel up to the zero reference point Hold the probe in place to keep it steady Enter 00 0 at the keypad and press ENTER Lower the capacitance probe by an accurately measured distance further into the water e g another 30cm Enter this further distance e g 30 as the 2nd point and press the ENTER key This completes calibration THIS CONCLUDES THE 2 POINT CALIBRATION PROCEDURE 1st CAL POINT Enter depth as 0 00 in cm 2nd POINT Enter depth as D in
32. o and span values If the units are changed all of these values are re calculated to the newly chosen units 13 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 e Press the SETUP KEY if not already in the Setup menu then press for Settings then 2 for Units SELECT UNITS 1 L S 2 LPM 3 CuFS 4 CumS 5 CumM 6 CumD Current CumD Press the number for the desired units MGD Million Gallons per Day CuFS Cubic ft per sec Cubic metres per second CumD Cubic metres per minute CumD Cubic metres per day The current chosen value is displayed on the bottom line 3 4 6 TAG NUMBER THE TAG NO s ARE USED ONLY FOR NETWORK APPLICATIONS AND ARE USUALLY FACTORY SET To communicate on a network each controller must have a unique Tag Number also called node address Important if multiple units on a network have the same address network errors will result An Arjay Central Access Panel CAP is required to communicate with 2000 series level controllers on a network The CAP allows data to be viewed from and remote calibration set of any 2000 series level controller on the network from a central location e Press the SETUP KEY if not already in the Setup menu then press for Settings then for Tag e Enter the desired tag number 3 4 7 mA SETTINGS Press the CONTROL key CONTROL SETTINGS 1 Relay Settings 2 mA Settings e Press 2 to setup the mA output SET mA OUT Zero CumD
33. p should be shut off during a power failure to the Arjay 2000 OCFunit Conditions 2 4 6 8 are typically for alarm applications where the positive action i e sounding an alarm if the flow is at a high level should also be in place during a power failure to the Arjay 2000 OCFunit 22 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 4 44 SETUP MENU SETUP The SETUP menu is used for one time setup and for Diagnostics 1 PMC 2000 2 Diags 3 Settings 4 4 1 PMC 2000 Manual SETUP 1 2 This menu is to calibrate the 2000 series controller for the particular PMC 2000 level transmitter module located at the probe head There are 3 calibration parameters A K C These values are used to calculate the capacitance from the frequency signal received from the PMC 2000 The parameters may be calibrated manually or automatically Automatic Calibration is performed at the factory on each PMC 2000 module A label listing the A K C values is then affixed to the PMC 2000 connector AUTOMATIC CALIBRATION IS ONLY TO BE PERFORMED BY AUTHORIZED PERSONNEL AND IS BEYOND THE SCOPE OF THIS MANUAL IF PROBLEMS ARE ENCOUNTERED OR IF THE C VALUES ARE NOT KNOWN PLEASE CONTACT AN ARJAY REPRESENTATIVE Manual entry of the A K and C values is described in Section 3 4 1 4 4 2 DIAGNOSTICS SETUP 2 This menu displays the received frequency signal from the PMC 2000 module at the probe head and the calculated capacitance
34. set the ON delay in seconds This is how long an alarm condition must exist before the corresponding relay is switched to an alarm condition 15 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 The following table shows the effect of the Relay Action and Failsafe settings Relay Action Failsafe Setting Effect High No Alarm condition when flow rate rises above the High Setpoint for at least the alarm delay period Alarm condition remains active until the flow rate drops below the Low Setpoint No action is taken when the flow rate is between the High and Low Setpoints In the alarm condition the corresponding alarm LED is turned ON and the relay is energized High Yes Alarm condition set and reset as above In the alarm condition the corresponding alarm LED is turned ON but the relay is de energized Low No Alarm condition when flow rate drops below the Low Setpoint for at least the alarm delay period Alarm condition remains active until the flow rate rises above the High Setpoint No action is taken when the flow rate is between the High and Low Setpoints In the alarm condition the corresponding alarm LED is turned ON and the relay is energized Low Yes Alarm condition set and reset as above In the alarm condition the corresponding alarm LED is turned ON but the relay is de energized e Relay Settings menu is now displayed from which other relays may be sel
35. t protection circuit breaker device is required as a disconnect device This mains disconnect device shall be specified as complying with the requirements of IEC 947 1 and IEC 947 3 The external mains switch shall be in close proximity to the equipment and within easy reach of the operator The switch shall be marked as the disconnecting device for the equipment and include the symbols to its ON and OFF positions using the following symbols C POWER OFF POWER ON For supply connections use wires rated at least 75 C 167 F The equipment is suitable for connection to a 15A protected branch circuit Wiring diagram for permanent connection See Figure 2 2 Use copper conductors only Model 2000 Series OCF 21140cfum23 doc Rev 2 3 2 6 ELECTRICAL INSTALLATION All connections are via plug in connectors for installation convenience Probe 2 and mA output 2 are not available for series 2100 and 2300 models The 24VDC is the power input for DC powered models For AC powered models the power connection is on the bottom of the unit The network connection is optional for the 2100 series and standard on the 2300 series models and requires an Arjay Central Access Panel CAP or Handheld Calibrator for data access a PROBES 24 lt mA OUTS CATI Caution to reduce the risk of fire or electric shock do not interconnect the outputs of different term
36. uracy This is also why a minimum of 1096 change in depth is recommended between the 2 calibration points since the larger the difference the less affect the inaccuracies of entered levels has on the calibration For example a 196 error in entered values over a 1096 change translates to a 1096 error at Full Scale 100 NOTE if the SLOPE and OFFSET parameters are already known they may be entered directly by selecting SLOPE OFF item 3 from the Cal menu This can save a lot of time 4 2 2 MANUAL CALIBRATION CALIB 2 This option is used to fine tune the SLOPE and OFFSET values after a successful Automatic Calibration or when the capacitance at 2 differing depths is known For example if the capacitance and corresponding depths have been recorded over some time then these can be used to recalibrate the unit by using two levels which are furthest apart and their corresponding capacitance values The procedure is as follows At any time to view the measured capacitance Press the SETUP key then 2 for Diags e Read the capacitance in pF on the 2 line from the top e Determine the actual depth in above the primary device point reference level same as probe reference point 2 places of decimal accuracy e The above steps must be repeated for one other depth which is different from the first by at least 10 This be either done in a vessel or in the channel by raising or lowering the probe in the
37. urrent DC Courant continu Live Sous tension Neutral Neutre Ground Terre Normally open relay contacts Contacts travail Contacts Repos Power off Arr mise hors tension Power on Marche mise sous tension Normally closed relay contacts CAT I Overvoltage Category I Model 2000 Series OCF 21140cfum23 doc Rev 2 3 2 2 PROBES Capacitance probes may be selected from a variety of styles for use with liquids liquid interfaces and granular materials The probe length is customer specified for the height of material desired to be measured Usually Teflon coated probes are used 2 3 PROBE INSTALLATION The probe must be mounted in accordance with the primary flow device type Here are some general guidelines 1 The 2000 OCF can be used with a large number of primary device types flumes and weirs of varying sizes Each primary flow device stipulates at what point in the channel the depth must be measured 2 The probe must be mounted up stream from the primary device out of the Draw Down area This is the region where the water level drops as it passes over the primary device The Draw Down region extends up stream for a length determined by the primary device type and the flow rate 3 The probe must be mounted in a vertical position CONC SHIELDED CAPACITANCE LEVEL PROBE DRAWDOWN AREA lt gt CALCULATE FLOW MEASURED HEIGHT TO ZE
38. water TO CALIBRATE USING MANUAL CALIBRATION Press the CALIBRATION key to get to the CALIBRATION menu then 2 for Manual e Enter the 1 depth in 2 decimal places then press the Enter key e Enter the 1 corresponding capacitance value 20 Model 2000 Series OCF 21140cfum23 doc Rev 2 3 e The unit then prompts for the 2nd depth and the 2nd capacitance After entering these values the unit will calculate the SLOPE and OFFSET Use the Slope Off menu item described below to view and record these values for future reference 4 2 3 SLOPE AND OFFSET CALIB 3 Use this feature to view and or modify the SLOPE and OFFSET calibration values directly Press the CALIBRATION key to enter the CALIBRATION menu then for Slope Off e Enter the desired SLOPE and OFFSET If no change is desired just press the Enter key in each case or a Menu key to go to another menu such as the DISPLAY menu 43 CONTROL MENU CONT The CONTROL menu allows the setup of the mA output and the Control Relays NOTE The Control Relays and the mA output are set to their OFF states when in the CALIBRATION menu CALIB In the DIAGNOSTICS menu FUNCTION 2 the mA output may be set manually by the operator to 4mA or 20mA In this case the mA output does not reflect the level value 4 3 1 mA SETTINGS The mA output Zero and Span settings may be set anywhere within the measurement range For example if the Zero is set to 100CumD and the Span
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