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USER MANUAL MODEL 865-25 ppb DISSOLVED

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1. VO 10 1 cm 4 0 in Process Connechons sse Flow cell insertion via 1 25 in Swage Lok nut Sensor Cable nbi tient repere etc Feste RE double shielded 1 m length Weight ss n aces cts s ee ee 0 5 kg 1 0 Ib Shipping Weight stac a R AE umn Qasi A ese Teed 1 4 kg 3 0 Ib Shipping Dimensions aS PZW dT e erosion ena iens 46 cm x 30 cm x 23 cm 18 in x 12 in x 9 in es A2103042 1 1 Page 10 www iccontrols com um 865 25 203 IC Controls INTRODUCTION Specifications Sensor A2103041 Measurement Range 0 01 ug L to 9 999 ug L Minimum Ce 2 C 35 F Maximum Temperature 65 C 113 F Maximum uu RO EE 400 kPa 60 psi Principle Of Operation Galvanic Electrode Materials Cath OGG E Silver lee M Lead Wetted Materials a Dead credere Ae Stainless Steel PTFE Viton PEEK Temperature Sensor ener nnne nennen nennen ennt enne nnne 1000 Q PT RTD Optimal Flow Velochty reenen 0 83 cm s to 3 3 cm s 50 mL min to 200 mL min Electrode Dimensions BIER 3 2 cm 1 3 in Bue Lu EE 10 1 cm 4 0 in Process Connechons aaa eana0e1 Flow cell insertion via 1 25 in Swage Lok nut Sensor Cable A double shielded 3 m length IDEE 0 5 kg 1 0 Ib Shipping Weight PA A ee
2. erra Sort te Fever e ETE ef Stainless Steel PTFE Viton Delrin Temperature Sensor a enne nene nnn entente nnne nnne 1000 Q PT RTD Optimal Flow Velochty reenen 0 83 cm s to 3 3 cm s 50 mL min to 200 mL min Electrode Dimensions BIER 3 2 cm 1 3 in Bue Lu EE 10 1 cm 4 0 in Process Connechons nnne Flow cell insertion via 1 25 in Swage Lok nut Sensor Cable A double shielded 3 m length IDEE 0 5 kg 1 0 Ib Shipping Weight PA A eect A aqna ma E TEE rH pant 1 4 kg 3 0 Ib Shipping Dimensions A 46 cm x 30 cm x 23 cm 18 in x 12 in x 9 in es A2103001 1 1 um 865 25 203 www iccontrols com Page 9 INTRODUCTION IC Controls Specifications Sensor A2103042 Measurement Range 0 01 pg L to 9 999 ug L Minimum Temp rature uu uuu uuu U Een HER RAA S REL ER ER R CEEIE SARI SEN SERA 2 C 35 F Maximum Temperature 65 C 113 F Maximum ET EE 400 kPa 60 psi Principle of Operation Galvanic Electrode Materials Cathode EE Geile HS ee EEN Silver Wupemee Lead Wetted ET ssa dnte dtd resorte reves odere Pe Ea Stainless Steel PTFE Viton PEEK Temperature Sensor T 1000 Q PT RTD Optimal Flow Velocity a 0 83 cm s to 3 3 cm s 50 mL min to 200 mL min Electrode Dimensions NET 3 2 cm 1 3 in EON QUN
3. 6 CONTROLS d Er Q ZA A 1 23 CH Illustration 9 Model 865 analyzer component location um 865 25 203 www iccontrols com 865 25 D O MEASUREMENT 1 D O sensor and lead senses ppb oxygen in sample stream and produces a current dependent on sample concentrations Equipped with I m 3 feet cable 2 Stainless steel sensor housing provides total shielding for stable low level ppb signals included with each electrode 3 Hand seal gland nut provides easy removal of sensor and pressure seal 4 Stainless steel flow cell contains dissolved oxygen sensor and close contact sample flow paths 5 Angle mounting bracket securely mounts flow cell at 30 degrees from vertical to allow air bubbles to bypass the sensor tip 6 O Ring seal inlet fitting special inch tube fitting to provide oxygen tight inlet seal 7 Ground shield wire ensures no electrical potential from static which would affect low ppb level readings 8 865 Dissolved Oxygen Analyzer electronics handles all signal manipulation and results 9 LED display provides digital readout of measurement 10 Keypad analyzer operation keys 11 Communications port Page 15 INSTALLATION IC Controls INSTALLATION Report any obvious damage of shipping container to carrier and hold for inspection The carrier not IC Controls is responsible
4. DATA LINK WHT e TP 204 D O RED 4 SENSOR ICTRI D O BEBE SH mm CABLE SHIELD TORU S vie REI ICOAXI D O GRNI BLK z IBLK a D O 4 20mA LOOP IREDI 5 SIG RELAY B IPOWI SIG RELAY A POW 115 230VAC 50 60 HZ EOLS8EW C D 40 3SQH G gt L hy gle ob C NOTE 1 LINE VOLTAGE SELECTUR SWITCH MUST BE SET TO PROPER POSITION BEFORE APPLYING POWER Page 68 www iccontrols com um 865 25 203 IC Controls DRAWINGS D5970171 Analyzer Dimensions 10 2300 P 9 4500 40 2750 TH O O 6 2900 4 3300 5 O O FRONT VIEW SIDE VIEW HINGE LOCATION ON OFF SWITCH BUTTUM VIEW um 865 25 203 www iccontrols com Page 69 IC Controls DRAWINGS 0 I jO 4asys 9 05s Naa P800907 _ ene apo u pasn SNOISNSWIC MIN 9 NM UU dao G2 G98 1300W JUI opouoj OMoLU a AsDUOJI HIT JYS q STOULNOD 9 33op ZQ Sample Conditioning Panel Dimensions D4060084 SAHJV Id VIG SO S310H DNILNN 3anl SS v l ld v DW NI LdNW b E ldNA 2 1 Nivaa T S dat N jeuod SS 005 0 0000 rT 000S 21
5. Unit Selection High or Low Alarm Deviation Alaris uu w rne ir ther te eite Fault AGED ccce cete ente p t Ie TOi rd Alarm Indication Using Alarms for On Off Control 41 CONFIGURATION OF PROGRAM 42 INSTRUMENT MAINTENANCE 44 Weekly Maintenance eese Monthly Maintenance esses Yearly Maintenance Sensor Chemical Cleaning Instrument Cleaning TROUBLESHOOTING ELECTRONIC HARDWARE ALIGNMENT 47 DISPLAY PROMPTS eene GLOSSARY u u a wii dza Ee Appendix A Security a Appendix B Unit Conversion Appendix C Saturated D O Values Appendix D Default Settings Appendix E Parts List Appendix F Installation No Sample Panel 61 Appendix G Serial Communications 62 Appendix H Data Capture DRAWINGS eee D5920101 Wiring Daeram eee D5970171 Analyzer Dimensions D4060084 Sample Conditioning Panel Dimensions 70 INDUSTRIAL PRODUCTS WARRANTY 71 COMPLIANCE amp CONFORMITY 72 INDEX L A a i 73 Copyright 2006 IC Controls Ltd AII rights reserved Page 2 www iccontrols com um 865 25 203 IC Co
6. Improper electrode setup assembly or electrode failure Rip or puncture in membrane No D O signal or signal from sensor is very weak Incorrect membrane module in use Black or red discoloring in sensor Manual range on low range during calibration Atmosphere outside of pressure operating compensator is range of 75 kPa to 130 kPa off scale E1 5 Temperature compensator TC is off scale um 865 25 203 Sample outside of TC operating range of 5 C to 105 C TC not connected TC open www iccontrols com ERROR MESSAGES Solutions The sensor is not connected or there is a bad connection Manual range switching in effect and analyzer needs to be on a lower range Check electrode for proper assembly and redo calibration Monitor D O temperature and pressure until stable them redo calibration Water drop on membrane wipe it off then redo calibration Recharge and reassemble the sensor setup sensor then redo calibration Refer to Troubleshooting section Replace membrane module and redo calibration Check electrode connections then redo calibration Membrane is too thick Replace membrane module Sensor needs service has seen long exposure to high D O levels Refer to Troubleshooting section Change to automatic range switching or change range to range 4 Use manual pressure compensation or refer to Error Messages for Pressure Check electronic calibra
7. To calibrate the sensor simply suspend the probe above water and let the analyzer auto calibrate Refer to the Calibration section for complete procedure Sample Requirements Sample inlet connection 1 4 inch NPT tube fitting Suggested sample delivery tubing is 316SS with quality tube fittings to eliminate diffusion of oxygen through the sample system tube walls and leaks at fittings Sample outlet connection 34 inch MNPT fitting Flow rate 100 mL min to 200 mL min is recommended with a minimum flow rate of 50 mL min Lower sample flow rates will result in slower response to ppb dissolved oxygen changes Temperature 2 C to 45 C 35 F to 113 F with standard D O sensor P N A2103012 2 C to 65 C 35 F to 149 F with PEEK D O sensor P N A2103042 Pressure less than 400 kPa 60 psi 4 bar um 865 25 203 www iccontrols com Page 13 865 25 D O MEASUREMENT IC Controls 865 25 Component Identification A Analyzer model 865 B Dissolved oxygen sensor P N A2103012 C Flow cell chamber D Flow cell outlet E Atmospheric pressure relief amp grab sample chamber F Magnetite grit bypass G Inlet valve H Calibration amp grit removal valve I Drain outlet Illustration 8 865 25 component location Page 14 www iccontrols com um 865 25 203 IC Controls Description of Model 865 Analyzer O 865 MICROPROCESSOR ANALYZER f ppb D O
8. From the menu select LOG cnt This count number shows the number of data points that have been logged While the analyzer is logging you will be able to see this number incrementing The data point count will be 0 after the data log has been cleared from memory Also the cnt frame must show 0 before a new data log can be started The StAr frame won t be in the menu while the analyzer is actively logging data Ending a Data Log To end a data log i e to stop logging more points select StOP from the internal logging menu Press Enter when the analyzer displays the blinking do The analyzer will briefly display donE to indicate that it has stopped the logging operation Data logging will stop automatically if the FULL setting is set to StOP and the entire logging buffer has been filled Clearing the Data Log from Memory The data log can be cleared erased from the analyzer memory The menu will not allow you to start a new log until the existing log has been explicitly erased This is a safety feature to ensure that you don t accidentally wipe out an existing log when starting the next log To erase the data log from memory 1 Select LOG CLr from the menu 2 With the display flashing do press Enter Note there is no way to recover a data log once memory is cleared Be very sure that you do want to clear the log from memory before pressing Enter Calibration amp Event History The analyzer stores impor
9. Safety specification CAN CSA C22 2 No 1010 1 92 eqv IEC 1010 1 UL Std No 3111 1 ANSI ISA S82 01 1994 SP LR 109591 3 NATL AC hereby declare that the equipment specified above conforms to the above Directive s and Standard s Place and date of issue Signed Orangeville Ontario Jon R Fleet E ectronics Quality Assurance Group Leader Feb 11 1999 Signed Zi ta Edward F Crossland Director Electronics Quality Assurance C Page 72 www iccontrols com um 865 25 203 IC Controls INDEX Access levels 53 Alarms 39 default settings 59 deviation 39 41 differential 39 41 fault 39 41 function 39 high 40 indication of 39 low 40 on off control 41 relay contacts 42 sensitivity of 40 set point 39 units 40 use of contacts 39 wiring 39 Automatic range switching 36 Automatic temperature compensation 30 Calibration D O input circuit 47 electronic 49 errors 29 in line 27 off line 28 temperature input circuit 47 Caution messages 32 34 Configuration defaults 59 input on off switch 24 re initializing 42 units 42 Current output 35p calibration 48 default settings 59 reversing 36 settings 36 simulating 36 span 35 testing relay outputs 49 D O auto range 31 calibration 27 detection circuit 47 error messages 33 um 865 25 203 INDEX in line grab sample check 28 in line zero check 28 manual range 31 measurement 12 off line zero check 29 output signals 35 pressure
10. frequency of log update in seconds Cont continue logging overwriting oldest data stop logging when buffer full 0 J number of data points currently in buffer also send log data via serial port stop sending via serial port Use alarm contacts for automatic range switching list of available inputs available units depend on type of input selected Accessible only when function is activated Illustration 4 Alarm menu um 865 25 203 IC Controls INTRODUCTION INTRODUCTION The model 865 is IC Controls industrial quality remote operational low level dissolved oxygen analyzer designed to give maximum flexibility reliability and ease of use The model 865 is factory calibrated with automatic ranging to measure dissolved oxygen from 0 ppb parts per billion to 20 ppm parts per million Calibration should not be required It has two isolated 4 mA to 20 mA outputs two 10 A SPDT relays dual programmable alarms plus a serial communication port The analyzer is programmed to auto calibrate holds output during calibration notifies user of diagnosed sensor or analyzer faults plus stores in memory the last 12 calibration records 1 000 minute measurement trend alarms power outages and diagnostic messages all date and time stamped The model 865 is one of a series of 115 230 VAC process analyzers supplied in a corrosion resistant IP65 NEMA 4X water and dust tight case These analyzers are also availab
11. must be selected Calibrating using manual range rNG 1 rNG 2 or rNG 3 will generate error 1 3 In line Calibration In line calibration is recommended as it is easy and results in lower sensor maintenance due to less sensor handling In line calibration requires a sample siphon drain system to allow air to reach the dissolved oxygen sensor see illustration 18 and a D O flow cell arrangement that leaves some water in the flow cell for humidity but no water drops on the sensor The model 865 25 is supplied on a panel with such a sample system as standard 1 Open the calibration valve 2 Observe the dissolved oxygen reading it should start em to rapidly climb towards 8 000 ppb 3 Press the CAL key The analyzer will show the dissolved oxygen reading The display will be blinking Constant to indicate that the analyzer is calibrating and testing Head Tank for stability NOTE The calibration is automatic from here on l As soon as the sensor reading has stabilized sufficiently the display will stop flashing and the new sensor efficiency constant will be calculated 4 When the reading stops blinking the calibration has been completed The reading will be displayed using the new calibration value Appendix B lists the saturated D O values used 5 Close the calibration valve completely to restore sample flow to the sensor and press the SAMPLE key Calibrate T to return to normal operation If this key is
12. pp Start up diagnostics 21 procedure 21 Temperature current output 35 error messages 34 input calibration 47 units 42 56 Temperature compensation 30 52 59 Timer 15 minute time out 24 security time out 24 Troubleshooting 46 Units conversion 56 D O 56 metric or imperial 42 pressure 30 42 56 temperature 42 56 um 865 25 203
13. unit from the configuration menu CONF then go into edit mode and change the C prompt to F Since this is a global setting both the units used for temperature and for pressure will change Real Time Clock The 865 analyzer has an internal date time clock which allows the analyzer to maintain the date and time even when the analyzer is powered off The date and time are needed to accurately date time stamp the internal data log plus system and calibration event tags To set the real time clock select CONF rtc from the menu Set the year month day hour minute and second The hund frame displays hundreds of a second but cannot be edited The rtc CHIP frame will show YES when a real time clock chip is present and shows NO when no real time clock capability has been installed in the hardware This frame cannot be edited Page 26 www iccontrols com um 865 25 203 IC Controls CALIBRATION CALIBRATION When executing the calibration procedure the analyzer will adjust the efficiency constant for the dissolved oxygen cell Calibration is performed in air over water at 100 humidity for optimal accuracy A zero oxygen measurement can also be checked using zero dissolved oxygen standard P N A1100193 There are two methods available for performing a calibration in line calibration or off line calibration NOTE Before starting a calibration the analyzer needs to use automafic range switching or manual range rNG 4
14. 00004 0000 92 00S2 v2 o D O O O s I um 865 25 203 www iccontrols com Page 70 IC Controls INDUSTRIAL PRODUCTS WARRANTY INDUSTRIAL PRODUCTS WARRANTY Industrial instruments are warranted to be free from defects in material and workmanship for a period of twelve 12 months from the date of installation or eighteen 18 months from the date of shipment from IC CONTROLS whichever is earlier when used under normal operating conditions and in accordance with the operating limitations and maintenance procedures in the instruction manual and when not having been subjected to accident alteration misuse or abuse This warranty is also conditioned upon calibration and consumable items electrodes and all solutions being stored at temperatures between 5 C and 45 C 40 F and 110 F in a non corrosive atmosphere IC CONTROLS consumables or approved reagents must be used or performance warranty is void Accessories not manufactured by IC CONTROLS are subject to the manufacturer s warranty terms and conditions Limitations and exclusions Industrial electrodes and replacement parts are warranted to be free from defects in material and workmanship for a period of three 3 months from the date of installation or eighteen 18 months from the date of shipment when used under normal operating conditions and in accordance with the operating limitations and maintenance procedures given in the ins
15. SELECT to display and or adjust the temperature setting to be used with manual temperature compensation If the current value needs to be changed press ENTER to edit the current setting the display will start blinking Use the Up or Down arrow key to display the desired temperature for manual temperature compensation Press ENTER to accept the displayed value Barometric Pressure Compensation The 865 uses a pressure sensor inside the analyzer case to measure the atmospheric pressure If the atmospheric pressure rises or falls and or if the pressure in the analyzer room differs from the local barometric pressure the 865 analyzer will automatically read the correct pressure The 865 will also compensate for the correct altitude to give accurate dissolved oxygen partial pressures during calibration While the barometric pressure measurement only affects the 100 saturation reading at calibration its use eliminates calibration errors that may cause all readings to be off by as much as 5 or more When metric units the default are CALIBRATE selected pressure is displayed in kPa CAL ppm DO When imperial units are selected psi Seide are used Illustration 20 Dissolved oxygen menu Page 30 www iccontrols com um 865 25 203 IC Controls CALIBRATION Selecting Manual Pressure Compensation To see the current pressure compensation method used by the 865 analyzer during calibration select d o Pr C from the menu refer to
16. Switch procedure in Edit Mode section Use manual temperature compensation Connect resistor to TC terminals to simulate a constant temperature Refer to Hardware Alignment section Verify process and sensor location Follow procedure in Hardware Alignment section Solutions Use manual pressure compensation Turn off pressure input Follow Input On Off Switch procedure in Edit Mode section Follow procedure in Hardware Alignment section Use manual pressure compensation Turn off pressure input Follow Input On Off Switch procedure in Edit Mode section Follow procedure in Hardware Alignment section um 865 25 203 IC Controls OUTPUT SIGNALS Two assignable 4 mA to 20 mA output channels are provided The user may configure the analyzer to determine which input signal will be transmitted by each 4 mA to 20 mA output channel Each output channel can be independently configured to transmit the dissolved oxygen temperature or pressure OUTPUT SIGNALS signal Output 2 can also be used to transmit a range number indication when output 1 is in auto range mode The output channels function independent of each other Each output channel has a separate on off switch and adjustable low and high span or scale adjustments This makes it possible for example to transmit two dissolved oxygen signals each using separate high and low adjustments All output settings are selected from the out menu To adjust the output sp
17. a high surge that slowly falls over some hours may be observed Correct by finding air in leakage point and stopping leak TIP How to Clear an Air Bubble You can clear an air bubble stuck in the flow cell by loosening the cell retaining nut and letting the cell rise up a bit then pressing it back in until it bottoms Another way to clear an air bubble is to temporarily increase the sample flow This is easy to do when using a dirt bypass arrangement with a head tank Simply force the bypass flow through the flow cell by placing a finger over the standpipe in the head tank Page 46 www iccontrols com um 865 25 203 IC Controls ELECTRONIC HARDWARE ALIGNMENT ELECTRONIC HARDWARE ALIGNMENT Alignment of Dissolved Oxygen Detection Circuit 1 Set up a precision multimeter Fluke 8051A or equivalent to read VDC 2 Use the D O sensor connections TB200 1 and D O sensor TB200 3 as common Refer to wiring diagram D5920101 3 Place analyzer on manual range selection by selecting CONF in d o Auto from the menu and editing the setting to read no 4 Set the D O input range to range 4 by selecting CONF in d o ANG from the menu and editing the setting to read rNG 4 5 Set the D O efficiency constant to 100 by selecting d o EFF from the menu and editing the value to read 100 0 6 Adjust the electronic standardize with blue trimpot VR200 located mid board above the D O terminal block Adjust the
18. a relay select CONF NO NC AL A from the menu Press ENTER to go into edit mode then press the Up or Down arrow key to change the normally open normally closed configuration from open to closed Press ENTER to accept the new value A closed contact should open and an open contact should close Repeat step 1 for the Alarm B contact If so desired all software settings can be returned to factory default condition by following the procedure in Configuration of Program Re initializing All Settings um 865 25 203 Www iccontrols com Page 49 DISPLAY PROMPTS IC Controls DISPLAY PROMPTS 0 5 0 20 1 5 1E 6 4 20 5VDC ACC n AL AL A AL b ArnG ASCI Auto BAud C CAL CHIP CLr ent CLSd CONF Cont cur dAtE dEv diff dLAY d o do donE EFF Err Er 94 F FLt FrEq FULL Func HI Hold hour hund BLOG in kPa LO NodE Page 50 Use 0 VDC to 5 VDC configuration for output Use 0 mA to 20 mA configuration for output Use 1 VDC to 5 VDC configuration for output dissolved oxygen units in parts per million ppm unit selection in scientific notation Use 4 mA to 20 mA configuration for output Diagnostic to display 0 VDC to 5 VDC raw input voltage for D O input Access level for security Displayed after password entered by user Alarms Alarm A Alarm B Automatic range switching for 4 mA to 20 mA output ASCII
19. compensation 57 temperature compensation 57 troubleshooting 46 units 56 Default settings 59 Diagnostics memory test 21 startup procedure 21 Display prompts 50p Edit Mode change settings 25 example 25 key functions 25 numeric values 25 Electrode cleaning 45 maintenance 44 troubleshooting 46 Error messages 32 sign 32 sign 32 acknowledging 32 alarm 34 clearing 32 DO 33 pressure 34 temperature 34 Fault alarm 41 Galvanic cell 12 Home base 24 Hysteresis 40 52 Imperial units 42 Input on off configuration 59 Installation 42 Keypad arrow keys 24 CANCEL key 25 DOWN key 25 www iccontrols com Page 73 INDEX ENTER key 25 SELECT key 25 UP key 25 LED 32 52 Manual temperature compensation 30 Menu edit settings 25 home base 24 Menu Layout 3p Metric units 42 Normally closed 42 52 Normally open 42 52 Output channels 35 Output Hold 29 Password 53pp Pressure automatic compensation 30 error messages 34 manual compensation 31 units 30 42 56 Pressure compensation 59 Process control 41 Range switching output signals 36 Re initializing settings 43 Real time clock 43 Relays 49 SAMPLE key 24 Sample requirements 13 Security access levels 53 access level 53 Page 74 www iccontrols com IC Controls disabling 54 enabling 53 password 43 54p password 1 53 password 2 53 time out 24 Sensor assembly 17 insertion 19 removal 19 wiring 17 Simulated current output 36 Specifications
20. for any damage incurred during shipping Mounting the 865 25 The model 865 25 comes as a complete sample conditioning system The analyzer is mounted on a stainless steel panel with a flow cell containing the dissolved oxygen sensor The sample conditioning panel includes on line calibration magnetite grit bypass and siphon drain system The only installation requirement of the user is to mount the panel and supply plumbing to the inlet and from the outlet The panel mounts on a wall via four inch bolts at 12 inch x 24 inch centers refer to drawing D4060084 for mounting dimensions Sample inlet is a 1 4 inch NPT tube fitting and sample outlet is a CPVC inch MNPT fitting It is suggested that the sample be delivered in a inch stainless steel line Analyzer Wiring Nominal input power for the model 865 microprocessor analyzer is selectable for 115 230 VAC 10 single phase 50 60 Hz Default power is set to 115 VAC Refer to drawing D5920101 for component locations Power connections are made at TB400 Three wire grounded power must be used with the third wire connected to a good earth ground If this ground connection is not made published instrument specifications may not be achieved CAUTION Line voltage selector switch must be set prior to applying power for either 115 VAC or 2 230 VAC Illustration 10 Power wiring r 5 o o o 5 There are four 12 inch conduit entrances located on the bottom of the
21. illustration 20 Either Auto for automatic pressure compensation or SEt for manual pressure compensation set point will be displayed depending on the current setting To change the setting from Auto to SEt press ENTER to edit the current setting The display will start blinking indicating that a selection needs to be made Use the Up or Down arrow key to display SEt Press ENTER to select manual pressure compensation With SEt displayed press SELECT to display and or adjust the pressure setting to be used with manual pressure compensation If the current value needs to be changed press ENTER to edit the current setting the display will start blinking Use the Up or Down arrow key to display the desired pressure for manual pressure compensation Press ENTER to accept the displayed value D O Range Auto or Manual The 865 dissolved oxygen analyzer is an auto ranging analyzer The analyzer has four D O input ranges and will automatically switch between them to avoid going off scale the output range numbers associated with the 4 mA to 20 mA output are part of the output module and are independent of the input ranges described here The input range currently being used by the D O measuring circuit can be determined by selecting CONF in d o F ANG refer to illustration 21 If the analyzer is using manual ranging for the D O measurement the user can go into edit mode and switch ranges If the analyzer is using automat
22. impractical 100 in most cases Automatic range switching will automatically expand the span adjustment by a factor of 10 each time the output level is within the bottom 1046 of zero With automatic range switching in effect the output will adjust automatically moving from o NL u range 1 which is 0 ppm to 20 ppm down to range 5 TIME which is O ppb to 2 ppb Illustration 24 Output without range switching OUTPUT Enabling Output Auto Range Switching NOTE Only output I has automatic range switching available From the menu select out out1 ArnG then edit the setting to show YES With automatic range switching for output 1 enabled the user can see which range output 1 is on by selecting out out1 rnG from the menu This frame gives a live update of the range number The rnG frame can only be selected from the menu if ArnG is set to YES Page 36 www iccontrols com um 865 25 203 IC Controls OUTPUT SIGNALS Example of Output Auto Range Switching D O VES hic aedes esata Illustration 25 shows the effect of adding range 100 switching to the 4 mA to 20 mA output it shows the 4 mA to 20 mA recovering to stay within 10 to 100 of scale by automatically switching between ranges Only on the last range range 5 does the 4 mA to 20 mA output fall below 10 of scale Illustration 24 shows the D O level coming B down after a calibration but has virtually no TIME resolution at the oper
23. produces a fixed potential regardless of oxygen concentration to complete the circuit Teflon membrane Lead anode KOH fill solution Sensor body Insulator Illustration 7 Galvanic dissolved oxygen sensor Page 12 www iccontrols com um 865 25 203 IC Controls 865 25 D O MEASUREMENT The chemical reactions within the cell are At the cathode O 2H O 4e 40H At the anode 2 Pb 2Pb 44e Overall 0 2H 0 2Pb 2Pb OH Principles of Calibration At any given temperature and barometric pressure the partial pressure of oxygen in water saturated air is exactly the same as it is in air saturated water Thus a sensor can be calibrated in water saturated air using the 20 9 oxygen available in air as the full scale standard and it will correctly read dissolved oxygen in water samples Both temperature and barometric pressure affect the partial pressure of oxygen in air saturated with water vapor The 865 has microprocessor memory programmed with all the values as well as automatic temperature and barometric pressure sensors so it can automatically obtain the correct data look up the dissolved oxygen table compute the correct gain and calibrate the analyzer The operator need only remove the cell and suspend it over a beaker of water This calibration technique will give a 100 saturation reading for the temperature and pressure which the 865 will display as ppb dissolved oxygen
24. psi 6 895 kPa latmosphere 1 01325BAH 1 atmosphere 760 mm Hg o H Torr psi 1 atmosphere 14 70 psi 1 atmosphere 101 3kPa 1bAr 100kPa Page 56 www iccontrols com um 865 25 203 IC Controls Appendix C Saturated D O Values Appendix C Saturated D O Values The table below lists shows the concentration of dissolved oxygen in water over a range of temperature and pressure Dissolved oxygen values are reported as parts per million During calibration the 865 analyzer uses the table below to determine the efficiency of the cell The column for atmospheric pressure 1 atmosphere 101 3 kPa is in italics C kPa 94 0 95 0 96 0 97 0 98 0 99 0 100 0 101 0 101 3 102 0 103 0 104 0 105 0 106 0 0 13 51 13 65 13 80 13 94 14 00 1423 14 37 14 52 14 57 14 67 14811 14 95 15 10 1525 1 13 15 13 29 13 43 13 57 13 71 13 85 13 99 14 13 14 17 1427 1441 14 56 14 70 14 84 2 12 79 12 93 13 06 13 20 13 34 13 48 13 61 13 75 13 79 13 88 14 02 14 16 14 30 14 43 3 12 46 12 59 12 72 12 86 12 99 13 13 13 26 13 39 13 43 13 52 13 66 13 79 13 93 14 06 4 12 13 12 25 12 38 12 52 12 65 12 77 1290 13 04 13 08 13 17 13 20 13 42 13 56 13 69 5 11 82 11 95 12 07 12 20 12 33 1245 12 58 12 71 12 74 12 83 12 96 1309 1321 13 34 6 11 52 11 64 11 76 11 89 12 01 12 13 1225 12 38 12 42 12 50 12 62 12 75 12 87 13 00 7 11 23 11 36 11 48 11 60 11 72 11 84 11 96 12 08 12 11 12 20 12 32 1244 12 56 12 68 8 10 95 11 07 11 19 11 30 11 42 11 54 11 66 11 77 11 81 11 89 12
25. serial output log Automatic Baud rate for serial communications Temperature in degrees Celsius use metric units Calibrate analyzer Chip Is this analyzer equipped with a real time clock chip Clear the internal data log Count of number of readings in internal data log Normally closed alarm contact Configuration of program menu Continue internal data log when buffer full Signal output in mA or current Date Real time clock setting for day of the month Deviation alarm Differential for alarm settings Alarm activation delay Dissolved oxygen input Do press ENTER to execute the reset clear action Done reset clear action has been taken D O cell efficiency constant adjusted via calibration Error or warning number RAM checksum failed Some settings may be lost Temperature in degrees Fahrenheit use imperial units Fault alarm Frequency of internal data log updates in seconds Full What to do when internal data log is full continue or stop Function alarm type High alarm high limit 20 mA for 4 mA to 20 mA output window Output hold during calibration Hour Real time clock setting Hundredth of a second Real time clock display Internal data log Input OR Minute real time clock setting kPa units for pressure Low alarm low limit 4 mA for 4 mA to 20 mA output window Node number for IC Net communications www iccontrols com um 865 25 203 IC Controls DISPLAY PROMPTS DISPL
26. the meter and receiver are on different branch circuits If necessary the user should consult the dealer or an experienced radio television technician for additional suggestions The user may find the following booklet prepared by the Federal Communications Commission helpful How to Identify and Resolve Radio TV Interference Problems This booklet is available from the U S Government Printing Office Washington D C 20402 Stock No 004 000 00345 4 CANADA This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications Le present appareil num rique n met pas de bruits radio lectriques depassant les limites applicables aux appareils num riques de la class A prescrites dans le R glement sur le brouillage radio lectrique dict par le minist re des Communications du Canada DECLARATION of CONFORMITY Manufacturer s name IC CONTROLS Manufacturer s address 29 Centennial Road Orangeville Ontario Canada L9W 1R1 Product type Industrial process analyzer Model 865 Application of Council Directive 89 336 EEC ammended by 93 68 EEC EMC emissions specification EN50081 2 CISPR PUB 11 Class A Group 1 EN61000 3 2 1995 Section 2 EMC immunity specifications EN55011 1993 EN50082 2 1995 IEC 1000 4 2 IEC 1000 4 3 IEC 1000 4 4 Voltage Fluctuations immunity EN61000 3 3 1995
27. to OFF The relay contacts can also be used for remote indication of the range number for the first 4 mA to 20 mA output In this case the alarms will continue to function An alarm is indicated using the alarm LED but not the relay contact This usage of the alarm contacts is selected by setting AL ArNG to on Remote range indication is described in the Output Signals section um 865 25 203 www iccontrols com Page 39 ALARM FUNCTIONS IC Controls Unit Selection The alarm module will be using different units for its settings depending on the input selected and does not necessarily use the same units as the sample display Select unit from the alarm menu to display the units in use for an alarm The unit setting affects the set point differential and deviation settings for the alarm list of available inputs Use alarm contacts for automatic range switching The temperature and pressure inputs will use different units depending on whether metric or imperial units are selected For temperature and pressure the unit selection can be viewed only The choice between metric or imperial units is made in the configuration menu available units Y depend on type of input selected The D O input allows the user to select between ppm and ppb units Edit the unit setting to choose the desired units for Accessible only when tti function is activated KE Illustration 27 Alarm menu High or Low Alarm A high
28. to read 0 0 3 Setup a precision multimeter Fluke 8051A or equivalent to read VDC 4 Use the TEMP sensor connection TB201 2 as common See wiring diagram D5920101 Adjust blue trimpot VR203 located at top of board for a reading of 2 50 V at TP204 5 Close the case and press the SAMPLE key followed by the Down arrow key twice to display the pressure reading Reading should be within 0 1 kPa of the pressure obtained in step 1 Software Calibration 1 Obtain the current barometric pressure from your local weather station or from a barometer 2 Select CONF in PrES CAL from the menu The actual pressure as measured by the pressure sensor will be shown Edit the displayed value to the known correct pressure Press ENTER to leave edit mode then SELECT to start the calibration 3 The current pressure will be shown using a flashing display When it looks like the input is stable press ENTER to set the new pressure The software offset for the pressure input will be adjusted automatically 4 The calculated offset in kPa can be viewed by selecting CONF in PrES OFFS from the menu Calibration of 4 mA to 20 mA Outputs Use one of the following two approaches to get the analyzer to output the desired current level and then make electronic adjustments to calibrate the output Approach 1 Simulated 4 mA to 20 mA Output Self Calibration 1 Select cur from the output 1 menu to display the present output current i
29. were used last and loops around the columns The menu can be accessed using the arrow keys to find any parameter then press SAMPLE to return to the displayed reading Then using the Right arrow key return to exactly where you were Home Base Press Sample From anywhere in the menu the SAMPLE key can be used to return to displaying dissolved oxygen The program will safely abort whatever it SAMPLE was doing at the time and return to displaying the dissolved oxygen reading The dissolved oxygen display is the default sample display for the home base analyzer The analyzer s inputs dissolved oxygen temperature and pressure are arranged underneath each other at the left hand side of the menu Use the Up or Down arrow key to display each of the readings in 25 0 25 0 turn PrES 102 3 j Illustration 16 Home base o BLE Display Features 1 The analyzer has a built in timer which returns the program to displaying dissolved oxygen if no key is pressed for 15 minutes This time out has the same effect as pressing the SAMPLE key If security has been enabled then the time out will change the access level back to 0 or 1 automatically which gives the user read only access The user will have to enter an appropriate password to go to a higher access level If output hold for D O is in effect the same timer will release output hold 2 When the sample value is displayed pressing the Left arrow key will sh
30. 01 12 13 12 25 12 37 9 10 69 10 81 10 93 11 04 11 15 11 27 11 39 11 50 11 53 11 61 11 73 11 85 11 96 12 08 10 10 44 10 55 10 66 10 77 10 89 11 0 11 11 11 22 11 26 1134 11 445 11 56 11 67 11 79 11 10 20 10 31 10 42 10 52 10 64 10 75 10 86 10 96 10 99 11 08 11 19 11 30 1140 11 32 12 9 96 10 07 10 17 10 28 10 39 10 50 10 60 10 71 10 74 10 82 10 93 11 03 11 14 11 24 13 9 74 9 84 9 95 10 05 10 16 10 26 10 37 10 47 10 50 10 58 10 68 10 79 10 89 11 00 14 9 52 9 62 9 72 9 83 9 93 10 03 10 13 10 24 10 27 10 34 10 44 1054 10 65 10 75 15 9 31 941 9 52 9 62 972 9 81 9 92 10 02 10 05 10 12 1022 10 32 10 42 10 52 16 9 11 921 931 941 9 1 9 60 9 70 9 80 9 83 9 90 1000 10 10 10 20 1028 Illustration 35 Recommended sample configuration um 865 25 203 www iccontrols com Page 57 Appendix C Saturated D O Values IC Controls C kPa 94 0 95 0 96 0 97 0 98 0 99 0 100 0 101 0 101 3 102 0 103 0 104 0 105 0 106 0 17 8 92 9 02 912 921 931 9 41 9 50 9 60 9 63 9 70 9 79 9 89 9 99 10 08 18 874 883 892 902 9 12 9 21 9 30 9 40 9 43 9 50 9 59 9 68 9 78 9 87 19 856 866 875 8 84 8 93 9 03 9 12 9 21 9 24 9 31 9 40 9 49 9 58 9 67 20 8 39 848 857 8 66 8 75 884 8 93 9 03 9 06 9 12 9 21 9 30 9 39 9 47 21 8 23 832 841 850 85 8 67 8 76 8 85 8 88 8 95 9 04 9 13 9 21 9 30 22 8 07 8 15 824 833 842 8 51 8 59 8 68 8 71 8 77 8 86 8 95 9 03 9 12 23 7 92 8 00 80 8 18 8 26 8 35 8 44 8 52 8 55 8 61 8 70 8 79 8 87 8 96 24 7 77 785 794 8 02 8 11 8 19 8 28 8 36 8 39 8 45 8 53 8 62 8 70 8 79
31. 25 1 63 7 1 7 80 7 88 7 96 8 04 8 13 8 21 8 24 8 30 8 38 8 47 8 55 8 64 26 749 7 57 765 7 73 7 82 7 90 7 98 8 06 8 09 8 15 8 23 8 31 8 39 8 48 27 736 7 44 7 52 7 60 7 68 776 7 84 7 92 7 95 8 01 8 09 8 17 8 25 8 33 28 723 7 31 7 38 7 46 7 55 7 63 7 70 7 78 7 81 7 87 7 95 8 02 8 10 8 18 29 710 7 18 7 26 7 34 7 42 7 50 7 57 7 65 7 68 7 73 7 81 7 89 7 79 8 05 30 698 7 06 7 13 721 729 7 37 7 44 7 52 7 55 7 60 7 68 7 76 7 84 7 91 31 6 87 694 7 02 7 09 717 725 7 32 7 40 7 42 7 48 7 55 7 63 7 71 7 78 32 6 75 683 6 90 6 98 7 05 7 13 7 20 7 28 7 30 7 35 7 43 7 50 7 58 7 65 33 6 64 6 71 6 79 686 694 7 01 7 09 7 16 7 18 7 23 7 31 7 38 7 46 7 53 34 6 53 660 6 67 6 75 6 82 6 90 6 97 7 05 7 07 7 12 7 19 7 26 7 34 7 41 35 6 42 649 6 57 664 671 6 79 6 86 6 93 6 95 7 00 7 07 7 15 7 22 7 30 36 6 32 639 646 653 6 60 6 68 6 75 6 83 6 84 6 89 6 96 7 03 7 11 7 18 37 6 22 6 28 6 36 6 43 6 50 6 57 6 64 6 71 6 73 6 78 6 85 6 92 7 00 7 07 38 6 12 6 18 6 25 6 33 640 646 6 53 6 61 6 63 6 68 6 74 6 81 6 89 6 95 39 6 02 6 09 6 16 6 23 630 6 36 6 43 6 50 6 52 6 57 6 64 6 71 6 78 6 85 40 5 93 599 6 06 6 13 620 6 26 6 33 6 40 6 42 6 47 6 53 6 60 6 68 6 74 41 5 83 5 90 597 6 03 6 10 6 16 6 23 6 30 6 32 6 37 6 43 6 50 6 57 6 64 42 5 74 5 80 5 87 594 6 00 6 06 6 13 6 20 6 22 6 27 6 33 6 40 6 47 6 53 43 5 64 5 71 5 78 5 84 5 91 5 97 6 04 6 10 6 13 6 17 6 24 6 30 6 37 6 43 44 5 55 561 5 68 5 75 5 82 5 88 5 94 6 01 6 03 6 08 6 14 6 20 6 27 6 33 Page 58 www iccontrols com um 865 25 203
32. 4 mA to 20 mA Electronic Calibration 1 The outputs are isolated from the main circuit therefore measurements are made with common at the output 2 terminal TB304 terminal Measure output 1 zero at TP301 pin 8 of U304 while output 1 is outputting 4 00 mA The reading should be between 0 870 V and 0 890 V Adjust 2 voltage with VR300 Change analyzer output to 20 00 mA switch multimeter to mA and measure terminal of output 1 and adjust VR301 so that the current reads 20 00 mA Return analyzer output to 4 00 mA and trim actual output to 4 00 mA using VR300 Check again at 20 00 mA and repeat adjustments until satisfied Measure output 2 zero at TP300 pin 7 of U304 while output 2 is outputting 4 00 mA The test point should read between 0 870 V and 0 890 V Adjust 2 zero voltage with VR302 Change output at output 2 to 20 00 mA switch multimeter to mA and measure terminal of output 2 at TB304 and adjust VR303 span pot until the current reads 20 00 mA NOTE Zero and span are very wide range adjustments which show small interactions Recheck zero and span to confirm good calibration If so desired all software settings can be returned to factory default condition by following the procedure in Configuration of Program Re initializing All Settings Testing Relay Outputs 1 Relay output operation can be verified by testing for contact closure or continuity at each relay To activate
33. ANCEL to display the CAL frame Pai then press SELECT to restart the calibration The calibration setting will be based on the temperature used for temperature compensation and the pressure used for pressure compensation The Beaker proper ppb dissolved oxygen reading is obtained esp about 1 4 from an internal table Refer to Appendix C for a above water lable Ol values sek DY Me DOS SIDA VOR Illustration 19 Off line sensor calibration Page 28 www iccontrols com um 865 25 203 IC Controls CALIBRATION Off line Zero Test The best way to zero check at the point of use in the plant is to use zero dissolved oxygen standard P N A1100193 Alternatively a slower approximate zero can be obtained using a solution of sodium sulfite in water Submerge the dissolved oxygen sensor in a deep beaker so that it is 2 inches to 3 inches below the surface of the zero standard Provide gentle mixing to ensure the oxygen present is consumed Then cover the beaker with Parafilm to preserve product integrity Let stand for five minutes the sensor should rapidly fall to low ppb levels thus confirming operation of the sensor Discard used zero standard after use as exposure to air will exhaust it Reseal the storage bottle tightly for the same reason Preparation of Sodium Sulfite Solution To 1 liter of distilled water add 20 grams of Na SO and mix thoroughly Ensure that the solution is used within 8 hours be
34. AY PROMPTS CON T NO NC Normally open Normally closed OFF Off OFFS Offset on On ON OF On off switch onth Month Real time clock setting OPEN Normally open alarm contact out Output menu out 1 First 4 mA to 20 mA analog output channel out 2 Second 4 mA to 20 mA analog output channel PAS 1 Set password 1 operator access PAS 2 Set password 2 complete access PASS Enter password to change access level ppb Parts per billion D O unit selection Pr C Pressure compensation setting PSI psi units for pressure rANG Analyzer dissolved oxygen input range selection rnG Range number rtc Real time clock SEC Seconds Real time clock setting SEr Serial communications menu SEt Set point Select manual compensation StAr Start internal data log StbY Standby mode for analyzer StOP Stop internal data log t c Temperature compensation setting unit Display setting of units YEAr Year Real time clock setting um 865 25 203 www iccontrols com Page 51 GLOSSARY IC Controls GLOSSARY D O Dissolved oxygen EPROM Erasable Programmable Read Only Memory The EPROM chip holds the program which determines the functioning of the 855 analyzer Replacing the EPROM chip with a chip containing a new or an updated program changes the way the analyzer functions The EPROM chip is programmed by the manufacturer Hysteresis the reading at which an alarm is turned on i
35. Cell in the Installation section for proper procedure 3 Dry the tip carefully by blotting with a tissue ensure there are no water drops on the membrane Suspend the sensor above water as per illustration 19 4 Press the CAL key The analyzer will show the dissolved oxygen reading The display will be blinking to indicate that the analyzer is calibrating and testing for stability NOTE The calibration is automatic from here on As soon as the sensor reading has stabilized sufficiently the display will stop flashing and the new sensor efficiency constant will be calculated 5 When the reading stops blinking the calibration has been completed The reading will be displayed using the new calibration value 6 Press the SAMPLE key to return to normal operation If this key is not pressed the analyzer will return to the sample display after the 15 minute time out 7 Output hold will be in effect until it is turned off or until no key has been pressed for 15 minutes 8 After a successful calibration select d o EFF from the menu to observe the new calibration value This value is used internally to determine the analyzer gain To manually override the automatic operation of the analyzer the ENTER key may be pressed before the electrode has stabilized forcing the analyzer to calibrate using the current dissolved oxygen reading 7 Dec holdet Calibration may be re done or started over at any time Press C
36. ESS The 865 D O analyzer has advanced intelligence which allows the operator to recall factors leading to upset conditions and requires digital communication for access It keeps track of calibrations their date and results upset events such as power outages alarms and also logs into its memory a running history of 1000 plus dissolved oxygen readings Serial communications give the analyzer the ability to communicate with the IC Net Advanced Intelligence Access Program running on a personal computer running MS Windows 3 1 or higher The IC Net M program can be used to operate the analyzer in a network of analyzers using RS485 communications display and log each analyzer s inputs graphically retrieve internal data logs and view event information Wiring and Enabling 4399 To connect the 865 analyzer to a computer serial port TB306 consult illustration 38 for the wiring diagram To enable serial transmission by the analyzer set the a a serial ON OFF switch to ON default is ON Configure the analyzer for the desired baud rate g u Select SEr baud from the menu Baud rates from 0 1200 baud to 38400 baud can be selected the default S 5 S is 9600 baud see illustration 37 After selecting the CHAR baud rate at the analyzer ensure that the baud rate C selected in the IC Net program in the computer is v 9 pin D serial identical If not the analyzer and the computer will MD e ees port connector not
37. I Silver Wupemee Lead Wetted ET e oce tedio ter tte Pe Elea ora ad Stainless Steel PTFE Viton Delrin Temperature Sensor u renes enne enne nnne 1000 Q PT RTD Optimal Flow Velocity a 0 83 cm s to 3 3 cm s 50 mL min to 200 mL min Electrode Dimensions NET 3 2 cm 1 3 in EON QUN VO 10 1 cm 4 0 in Process Connechons sse Flow cell insertion via 1 25 in Swage Lok nut Sensor Cable nbi tient repere etc Feste RE double shielded 1 m length Weight ss n aces cts s ee ee 0 5 kg 1 0 Ib Shipping Weight stac a R AE umn Qasi A ese Teed 1 4 kg 3 0 Ib Shipping Dimensions zi Pda dA TTE PPG ctia c i eene n ERE 46 cm x 30 cm x 23 cm 18 in x 12 in x 9 in es A2103012 1 1 Page 8 www iccontrols com um 865 25 203 IC Controls INTRODUCTION Specifications Sensor A2103001 Measurement Range 0 01 ug L to 9 999 ug L Minimum Ce 2 C 35 F Maximum Temperature 45 C 113 F Maximum PressUute eere rect ent nire Pl by MERE A eai a UE RO EE 400 kPa 60 psi Principle Of Operation Galvanic Electrode Materials Cath OGG 528s us Silver lee Lead Wetted Materials
38. IC Controls Appendix D Default Settings Appendix D Default Settings The following program settings are the default settings for the analyzer New analyzers will have these settings unless the setup has already been customized for your application Outputs Output 1 Output 2 Input to be transmitted dissolved oxygen temperature Low setting 0 00 0 0 High setting 100 100 0 ON OFF switch ON ON Units ppb C Automatic range indication OFF Alarms Alarm A Alarm B Input for alarm dissolved oxygen dissolved oxygen Alarm function High High ON OFF switch OFF OFF Set point 10 0 100 Differential 1 0 1 0 Units ppb ppb Global units metric units temperature degrees Celsius pressure kPa dissolved oxygen concentration ppb parts per billion Alarm contacts Configured normally open Security Not enabled Temperature compensation Automatic TC using temperature input Pressure compensation Automatic pressure compensation using pressure input Input on off configuration The temperature input is on and will show up in the sample menu um 865 25 203 www iccontrols com Page 59 Appendix E Parts List IC Controls Appendix E Parts List Part Number A9051027 A9051028 A9101012 A9141012 A9201015 A2103004 A3010009 A7201113 A7201490 A9551054 A2103012 A2103001 A2103042 A2103041 A2103003 A2103043 A2103007 A2103047 A1100192 A1100193 A1100194 A7010003 Page 60 Description Drawing Number 865 Di
39. This number is the logging frequency specified in seconds For 1 second intervals use 1 for 1 minute intervals use 60 for 1 hour intervals use 3600 internal data log menu when not logging Select LOG FULL from the menu This setting specifies what the analyzer should do when the internal buffer has been filled Set to cont for continuous logging when the buffer is full Each new data point that is stored will erase the oldest data point Set to StOP to stop logging when the buffer is full The analyzer will fill up the internal data logging memory approximately 1000 data points and then simply stop logging preserving all data points that have been taken number of data points currently in buffer also send log data via serial port stop sending via serial port 2 list of available inputs frequency of log update in seconds continue logging overwriting oldest data stop logging when buffer full number of data points currently in buffer clear the buffer deleting all data points also send log data via serial port P stop sending via serial port Illustration 39 Internal data log menu um 865 25 203 www iccontrols com Page 63 Appendix G Serial Communications IC Controls Retrieving the Internal Data Log The IC Net M program running on a computer is used to retrieve the internal data log from the analyzer using the RS232 or RS485 serial communications link Displaying Logging Status
40. USER MANUAL MODEL 865 25 ppb DISSOLVED OXYGEN ANALYZER um 865 25 203 CONTROLS CONTENTS CONTENTS um 865 25 203 BIR ECH EE 2 505 MENUS Zee dod reao TA E AEN Eiei INTRODUCTION Features Specifications EE 865 25 D O MEASUREMENT 12 Introduction sia di ia id i dia 12 Galvanic Measuring Cell Principles of Calibration Sample Reouirements esee 865 25 Component Identification Description of Model 865 Analyzer sede INSTALLATION sccssssssssssssessrsecsoesssrsvesseesnneees Mounting the 865 25 Analyzer Wiring Sensor Wiring Equipment Symbols sess Assembly of the Dissolved Oxygen Sensor Inserting the Sensor into the Flow cell 19 Removal of the Sensor from Flow cell 19 ANALYZER OPERATION Description of Basic Unit Controls Start p Procedure ete em eee ee Initial Instrument Set up Start up SettingS Changing Settings Shutdown and Start Up Procedure s Standby Mode 123 EASY MENU 24 Remembers Where You Were 24 Home Base Press Sample Display Features sk AOW KCYS ei EE ROB re RES EDIT MODE u uuu eterne AEO I
41. V You can keep the DAT extension or use TXT or CSV 2 Open Excel then select File Open from the menu 3 Navigate to the log file If you used the PRN TXT or CSV extension for the log file you may want to change List Files of Type to Text Files otherwise use All Files Select the log file then click on OK 4 The Text Import Wizard dialog box should open In Original Data Type select Delimited then click the Next gt button 5 Under Delimiters select Comma 6 Click the Finish button to load the log file into Excel 7 The date time stamp will be loaded in column A and the input values will be loaded in columns B C etc The date time stamp will be treated as text while the input values will be treated as numeric values that can be graphed manipulated etc Microsoft Excel LOG DAT File Edit View Insert Format Tools Data Window Help eal wa Wb x Bz oe S F WT A B C a 1 980910 11 41 57 2 980910 11 47 59 3 980910 11 48 00 4 990910 11 48 01 8 980910 11 48 02 6 980910 11 48 03 7 980910 11 48 04 8 980910 11 48 05 lt gt PQ Sheen 7 TT 9 F IUM T TI Illustration 41 Loaded log file in Excel um 865 25 203 www iccontrols com Page 67 DRAWINGS IC Controls DRAWINGS D5920101 Wiring Diagram SER O P 4 SER COM ez JE Er SER I P EARTH OO OO mw 350 OO
42. alarm is set when the value of the dissolved oxygen temperature or pressure rises above the set point and is cleared when the dissolved oxygen temperature or pressure drops to below the set point minus the differential refer to illustration 28 A low alarm is set when the value of the dissolved oxygen temperature or pressure drops below the set point and is cleared when the dissolved oxygen temperature or pressure rises to above the set point plus the differential refer to illustration 29 The differential has the effect of setting the sensitivity of the alarm The differential provides a digital equivalent of a hysteresis HIGH ALARM ARM Ee differential differential sample sample SETPOINT time time Illustration 28 High alarm Illustration 29 Low alarm Page 40 www iccontrols com um 865 25 203 IC Controls ALARM FUNCTIONS Deviation Alarm A deviation alarm is practical when the process is expected to stay within a certain range An alarm will be set if the input deviates too far from a set point Please note that the dEv frame only shows up in the menu after the alarm function has been changed to deviation alarm since it would have no effect for a high low or fault alarm Example If the dissolved oxygen is expected to stay between 100 ppb and 200 ppb then we would set in to d o Func to dEv SEt to 150 and dEv to 50 Effectively a high alarm at 200 ppb and a low alarm at 100 p
43. ale or is not connected properly If the error LED remains lighted then press the ERROR key or select Err from the main menu to see what errors have been detected by the analyzer 8 After completing the above steps the monitor is now in normal operational mode Analyzer settings and parameters can be viewed and or changed at any time using the keypad Initial Instrument Set up Refer to Appendix D for a list of factory default settings used by the analyzer Before putting the analyzer into operation verify the analyzer settings to ensure that they agree with the intended set up 1 To change the alarms set alarm function high low deviation fault alarm input source D O temperature or pressure differential set point and on off switch Set the normally open normally closed configuration of the alarm contacts in CONF AL The program setting must reflect the actual NO NC wiring Refer to Alarm Functions section for complete details 2 To change the 4 mA to 20 mA outputs set input source D O temperature pressure zero span and on or if not used off switch Each output can be calibrated for 4 mA to 20 mA 0 mA to 20 mA or 1 VDC to 5 VDC or 0 VDC to 5 VDC using a 250 ohm 1 resistor across the terminals Refer to Outputs section for complete details 3 Set preferences for metric or imperial units in CONF unit 4 If desired install password security Refer to Appendix A for complete details um 865 25 203 Ww
44. an or output window set LO to correspond to the low end of the scale or 4 mA output and set HI to correspond to the high end of the scale or 20 mA output The analyzer will automatically scale the output according to the new settings Wiring and Calibration out Refer to illustration 23 and drawing D5920101 for wiring diagram The factory output default is 4 mA to 20 mA however the outputs can be calibrated for 0 mA to 20 mA Troubleshooting section 0 VDC to 5 VDC or 1 VDC to 5 VDC output can be achieved by placing a 250 Q 1 resistor across the 4 mA to 20 mA output The setting in CONF out out1 and out2 can be changed to 0 5 ix t a 1 list of available inputs ppb available units unit Jeees on type ppm of input selected ON OF EE OFF LO a cur mA ArnG ks ee turn automatic range switching on off range number for rnG automatic range switching Illustration 22 Output menu For electronic calibration refer to Calibration of 4 mA to 20 mA Outputs in the U405 7808CT i 5 1 5 0 20 and 4 20 to agree 15305 with the hardware calibration of the particular output aza S ono e u out2 out1 4 20 mA 4 20 mA loop loop um 865 25 203 www iccontrols com Illustration 23 Output wiring Page 35 OUTPUT SIGNALS IC Controls Reversing the 4 mA to 20 mA Output The low scale setting will normally be lower than the
45. are no error indications and displayed concentration reading is reasonable 2 Inspect unit for leakage 3 Check that sample flow rate is OK between 50 mL min and 200 mL min Monthly Maintenance Certain applications may require occasional sensor cleaning 1 Perform a calibration and return sensor to service if response is fast D O measurement returns to low level in less than 15 minutes and efficiency stays fairly constant Refer to Calibration section for complete procedure 2 If response is slow or a large efficiency change occurs perform a visual examination of the sensor cell area If needed a soft wipe can be used to blot tip plus detergent and water may be used to remove any deposits 3 After cleaning rinse the sensor cell area thoroughly with deionized water 4 Black or red discoloration may be accompanied by very slow response that does not go away with standard maintenance Refer to the Troubleshooting section 5 Place the electrode back into service and run for one hour prior to calibration If the response time is still very slow check for air bubbles see Troubleshooting and remove or the membrane module may require replacement Follow Yearly Maintenance procedure 6 Calibrate and return the sensor to service Yearly Maintenance Replace the membrane module and electrolyte as follows 1 Unscrew the electrode cap and dump the contents 2 Flush the cell internals with deionized water and examine the lead co
46. ating level range i 2 5 NENNEN s OUTPUT 1 Remote Indication of Range When output 1 is auto ranging the user needs to indicate to the recorder DCS or computer which range it is on This can be accomplished by using the serial output the alarm contacts or the second pontacts 0 0 0 1 1 0 1 1 0 0 4 mA to 20 mA output The analyzer will allow the Illustration 25 Output with range switching methods to be used simultaneously 96 OUTPUT 2 To achieve results similar to those in illustration 25 use the following settings To use the serial output refer to the Serial Communication section for complete details NOTE t may be easier to simply use the serial link digital data all the time and discontinue 4 mA to 20 mA auto range monitoring To use the relay contacts for range indication set AL ArnG to on NOTE f the relays are used for alarms they cannot be simultaneously used for range indication The alarm LED type indication on the display and serial indications are still active even when the relays are used for range indication To use the second 4 mA to 20 mA output for range indication the following settings must be used for the selected output OUTPUT 1 OUTPUT 2 in d o in ArnG ON OF on ON OF on unit 1E 6 for ppm LO 1 HI 20 HI 5 LO 0 ArnG YES um 865 25 203 www iccontrols com Page 37 OUTPUT SIGNALS IC Controls Also set the HI and LO param
47. be able to communicate gt at computer end Illustration 38 Serial communication wiring Page 62 www iccontrols com um 865 25 203 IC Controls Appendix G Serial Communications When using RS232 communications default for the 865 it is recommended that you leave the node number at its default value of 1 On an IC Net RS485 network each unit needs a unique node plus an RS232 to RS485 converter part number A7900014 115 or A7900014 230 Internal Data Logging The 865 analyzer will log more than 1000 dissolved oxygen values internally storing readings at specified intervals The computer used to download the data does not need to be connected or turned on while the analyzer is logging data points The logged data can be retrieved later from the analyzer using a computer running the IC Net program The IC Net program can also display the exact number of data points available to the analyzer Internal logged data is date time stamped internal data log menu while logging by the analyzer The data log cannot be displayed directly from the analyzer but instead the serial communications link and the IC Net program are used to retrieve the complete data log of date time stamped D O data that was logged input being logged frequency of log update in seconds continue logging overwriting oldest data stop logging when buffer full Setup for Data Logging 1 Select iLOG FrEQ from the menu
48. cause the oxygen scavenger will be used up quickly with exposure to air Use of sodium sulfite to get a zero is similar to use described above for zero standard but it may take longer to get to low ppb levels and or zero may never be reached Calibration Errors If the analyzer detects a problem during calibration an error message will appear If an error has been detected then the calibration was not successful and the previous calibration is retained Press any key to acknowledge the error message Take corrective action and redo the calibration Consult the Troubleshooting section for further details Press any key to resume normal operation after an error message has appeared Output Hold The 865 analyzer allows the user to hold the output for dissolved oxygen Output hold affects both outputs and alarms if and when these monitor the dissolved oxygen input Enable output hold by changing the d o HOLd setting to YES Output hold has the following effect 4m to 20 mA output signals transmitting D O are frozen at their current levels Alarms monitoring D O will maintain existing on off condition The output hold remains in effect until the operator changes the d o HOLd setting to no or until no key has been pressed for 15 minutes The 15 minute timeout ensures that output hold for dissolved oxygen will not remain in effect for longer than 15 minutes if the analyzer is left unattended If it is desired to freeze the
49. ct A aqna ma E TEE rH pant 1 4 kg 3 0 Ib Shipping Dimensions A 46 cm x 30 cm x 23 cm 18 in x 12 in x 9 in es A2103041 1 1 um 865 25 203 www iccontrols com Page 11 865 25 D O MEASUREMENT IC Controls 865 25 D O MEASUREMENT Introduction Dissolved oxygen is a measure of the amount of oxygen usually thought of as a gas that is dissolved in a liquid such as water Oxygen is essential to life even for fish and other aquatic forms plus is the most common element found taking part in corrosion reactions It is this corrosion reaction that provides the need for the 865 25 dissolved oxygen measuring system which is designed to measure trace parts per billion ppb levels Mechanically hard and porous metal oxide deposits have little strength and form rapidly in the presence of water and oxygen Rapid corrosion will occur inside an industrial utility boiler system unless dissolved oxygen can be virtually eliminated Corrosion results in expensive repairs or equipment failures and subsequent replacement The model 865 25 is designed to continuously monitor the oxygen in steam and water circuits The operating range of 0 ppb to 10 000 ppb allows monitoring of leaks from condensers valves and fittings plus very low level precision to clearly show the performance of oxygen removal equipment and chemical scavengers Design considerations include an easy to use simple and accurate calibration approach ISO 9000 compatible internal memory docu
50. djust VR202 until the display reads 100 0 C 0 1 C Software Calibration To do a software calibration of the temperature input the correct temperature needs to be known 1 Select CONF in C CAL from the menu The actual temperature as measured by the temperature sensor will be displayed Edit the displayed value to the known correct temperature Press ENTER to leave edit mode then SELECT to start the calibration 2 The current temperature will be shown using a flashing display When the input appears to be stable press ENTER to set the new temperature The software offset for the temperature input will be adjusted automatically um 865 25 203 www iccontrols com Page 47 ELECTRONIC HARDWARE ALIGNMENT IC Controls 3 The calculated offset in degrees Celsius can be viewed by selecting CONF in C OFFS from the menu Whenever the hardware alignment is correct the offset will be 0 0 The displayed offset can be edited Alignment of Pressure Input Circuit The pressure input can be adjusted both by making electronic adjustments and or by having the program compensate for differences in offset Both procedures are described below Adjusting Electronic Calibration 1 Obtain the current barometric pressure from your local weather station or from a barometer 2 Remove any offset calculated by a previous software calibration of the temperature input Select CONF in PrES OFFS from the menu and edit the offset
51. e Access Program which is available as an option The model 865 analyzer is equipped with a real time clock which will maintain the correct time and date even with the analyzer power turned off To set the real time clock select CONF rtc from the menu Set the year month date day of the month hour minute and second The hund frame displays hundreds of a second but cannot be edited A faster way to set the clock in the analyzer is to use the IC Net program to synchronize the analyzer with the connected computer Temperature Input Calibration Refer to the Electronic Hardware Alignment Alignment of Temperature Input Circuit section for the procedure on calibrating the temperature input Pressure Input Calibration Refer to the Electronic Hardware Alignment Alignment of Pressure Input Circuit section for the procedure on calibrating the pressure input um 865 25 203 Www iccontrols com Page 43 INSTRUMENT MAINTENANCE IC Controls INSTRUMENT MAINTENANCE The dissolved oxygen sensors provided by IC Controls are designed for simple maintenance The sensors are robust and will withstand difficult applications when properly applied and maintained Follow instructions in this section to promote proper operation NOTE Galvanic D O sensors need a continuous current drain Maintenance should be done with the D O sensor wired to it s analyzer or with shorted coax center to shield Weekly Maintenance 1 Check that there
52. es group double click on the Terminal icon 3 From the menu select Settings Communications Set the communications settings as shown in illustration 40 The connector setting in the figure is set to COM1 match this setting to reflect the connection on your computer Communications Baud Rate O10 3230 60 1200 2400 4800 9600 13200 Data Bits Stop Bits s Os Or es Jor 015 O Parity Flow Control Connector None Xon Xoff Odd Hardware Even None Mark Space C Parity Check Carrier Detect LOUNT Illustration 40 Communications screen 4 To capture data into a file select Transfers Receive text file from the menu Specify the file name and location Example C logs log01 dat The terminal program will now store any ASCII data sent out by the analyzer into the specified file 5 To stop or pause data collecting use the buttons at the bottom left of the window Windows 98 Try Start Programs Accessories Communications Folder Hyperterminal Windows NT Try Start Programs Accessories Hyperterminal Folder Hyperterminal Page 66 www iccontrols com um 865 25 203 IC Controls Appendix H Data Capture Example Load Log File in Excel The following example illustrates how to load a log file into Microsoft Excel 5 0 1 By default the IC Net Access program uses the DAT extension for its log files Excel prefers TXT PRN or CS
53. eters to indicate which values represent 4 00 mA and 20 00 mA Table 2 shows the relationship between the range number and and some of the possible LO HI settings Table 3 summarizes the results for these settings Range LO 0 LO 1 LO 5 LO 5 Number HI 5 HI 5 HI 1 HI 0 OUT2 OFF 4 00 4 00 4 00 4 00 1 7 20 4 00 20 00 20 00 2 10 40 8 00 16 00 16 80 3 13 60 12 00 12 00 13 60 4 16 80 16 00 8 00 10 40 5 20 00 20 00 4 00 7 20 Table 2 Using output 2 for range Range Number Output 1 full scale Output 1 scale ppm D O Output 2 mA Relay Contacts 1 100 20000 4 00 A 0 B 0 2 10 2000 8 00 A 0 B 1 3 1 0 200 12 00 A 1 B 0 4 0 1 20 16 00 A 1 B 1 5 0 001 2 20 00 A 0 B 0 Table 3 Example of range switching for D O input Unit Selection The dissolved oxygen input allows the user to select between ppm and ppb units Edit the unit setting to choose the desired units for the HI and LO settings Temperature uses Celsius for metric units and Fahrenheit for imperial units Pressure uses kPa for metric units and psi for imperial units The choice between metric or imperial units is made in the configuration menu The output units will be different for high and low settings depending on the input selected To display the input units use select unit in the output menu Testing With 4 mA to 20 mA The 4 mA to 20 mA outputs can be used to test or calibrate downstream instruments such as recorders Select cur from the output menu to display the signa
54. g is at the sign then blinking goes to last lt character Settings restore the initial value if it was changed Otherwise leaves edit mode without doing anything CANCEL Illustration 17 Edit keys um 865 25 203 www iccontrols com Page 25 EDIT MODE IC Controls Input On Off Switch The temperature input has been provided with an on off switch The most common use of this feature is to turn off the temperature input if no temperature compensator or temperature sensor has been installed Turning off the temperature input will make the temperature C or F display at the left side of the menu disappear as if it did not exist Refer to illustration 2 for the configuration menu select CONF in C ON OF and edit as required Metric or Imperial Units By default the analyzer will use metric units This means that temperature will be displayed using degrees Celsius and that the prompt for the temperature input will be C Using metric units the pressure is displayed as kPa The analyzer can be made to use imperial units Using imperial units temperature will be displayed using degrees Fahrenheit and the prompt for the first temperature input will be F instead of C Pressure will be displayed as psi throughout the program For practical reasons the temperature input is always identified as C throughout this instruction manual and in the menus To select imperial units for the analyzer select
55. g will result in zero cell current and a reading less than 1 ppb Also characteristic of of oxygen consuming bacteria growing on a sample line filter inside the sample line or even the D O sensor membrane Actual D O at the sensor is lower Remove any sample filter and use a dirt bypass arrangement Readings gradually falling The analyzer can no longer be calibrated properly This problem is typical of scale or sludge slime deposits on the sensor face and or in the sample line The sensor and or line will need to be cleaned Sample lines can often be cleaned with a weak solution of bleach Refer to the Instrument Maintenance section for sensor cleaning procedures Black or red color in D O sensor Not necessarily a problem especially when seen as orange Caused by long exposure to air producing red lead oxide May go away gradually if left running in a low ppb D O sample for several days and the speed of response will improve as well a Correct by disassembling the cell and wiping away deposits using a rag or a toothbrush NOTE Ensure that you wipe in the direction of the coils to prevent damage to the cell b If cell response remains slow chemically clean and restore using IC Controls P N A1100194 dissolved oxygen sensor renew solution Replace the membrane module and return to service Readings trend where expected but spike high This problem is typical of air bubbles in the sample line If a bubble hangs up in the D O flow cell
56. h respect to or arising out of the product furnished hereunder Representations and warranties made by any person including its authorized dealers distributors representatives and employees of IC CONTROLS which are inconsistent or in addition to the terms of this warranty shall not be binding upon IC CONTROLS unless in writing and signed by one of its officers um 865 25 203 www iccontrols com Page 71 COMPLIANCE amp CONFORMITY IC Controls COMPLIANCE 8 CONFORMITY NOTICE OF COMPLIANCE US This meter may generate radio frequency energy and if not installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio and television reception It has been type tested and found to comply with the limits for a Class A computing device in accordance with specifications in Part 15 of FCC Rules which are designed to provide reasonable protection against such interference in an industrial installation However there is no guarantee that interference will not occur in a particular installation If the meter does cause interference to radio or television reception which can be determined by turning the unit off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient the receiving antenna Relocate the meter with respect to the receiver Move the meter away from the receiver Plug the meter into a different outlet so that
57. high scale setting It is possible to reverse the output or flip the window by reversing the settings of the low and high scale Simulated 4 mA to 20 mA Output Select cur from the menu to display the output current in mA that is presently being transmitted by the output signal The display will be updated as the output signal changes based on the input signal and the program settings From here one can watch the output respond to the change in the input signal This is useful for verifying program settings and for testing the hardware calibration To simulate a different 4 mA to 20 mA output signal press ENTER to access edit mode Edit the displayed mA value to display the desired output needed for testing the output signal Press ENTER to select the displayed value The output signal will be adjusted to put out the desired current This process can be repeated as often as necessary The output signal is held at the displayed level until the program leaves this part of the menu Automatic Range Switching Automatic range switching greatly enhances the resolution capability of the 4 mA to 20 mA output A typical application would track the D O input from 0 ppb to 20 000 ppb As soon as the D O level drops below about 1 000 ppb a typical recorder would be able to show very little resolution refer TYPICAL 4 20 mA OUTPUT to illustration 24 The alternative of having an WITHOUT AUIOMATIC PANGESWITCHING operator change the scale adjustment is
58. ic ranging then this setting can be viewed only Manual Ranging By default the analyzer is configured to automatically switch between ranges The auto switching capability can be disabled in the configuration menu by changing the setting of CONF in d o AUtO from YES to no refer to illustration 21 Once automatic ranging has been disabled the measuring range can be manually selected by changing the setting in CONF in d o TANG refer to illustration 21 NOTE Before starting a calibration the analyzer needs to use automatic range switching or manual range rNG 4 must be selected Calibrating using manual ranges 1 2 or 3 will generate error 1 3 Displayed Range Auto The measuring range of the instrument 0 ppb to 10 000 ppb dissolved oxygen is determined by the gain used by the analyzer itself and the cell current of the dissolved oxygen sensor The displayed measuring range is determined by multiplying the cell current by the NG 4 O N O w r SARA GES e Illustration 21 Configuration menu for D O input um 865 25 203 www iccontrols com Page 31 ERROR MESSAGES IC Controls ERROR MESSAGES Detected errors and or cautions are displayed by the analyzer press the ERROR key or select Err from the main menu If there are no error or caution messages NONE will be displayed otherwise scroll through the error list using the Up or Down arrow keys Errors and caut
59. ils for black or red discoloration or heavy gray coating Such coatings should be removed for best performance CAUTION The lead coils are soft metal never use force in cleaning Clean light fouling by wiping in the direction of the coils until a shine appears Heavier fouling may come off with a toothbrush worked along the coils so the bristles get down in the cracks followed by rinse and wiping to achieve a dull shine 3 Remove the old membrane module from the cell and replace with a new one refer to the Installation section for complete procedure on Assembly of the Dissolved Oxygen Sensor Re assemble the cell calibrate check efficiency and if above 50 return to service Page 44 www iccontrols com um 865 25 203 IC Controls INSTRUMENT MAINTENANCE Sensor Chemical Cleaning Recovery of a failing D O sensor can sometimes be achieved with P N A1100194 D O sensor cleaning solution This procedure should be done over a sink Wear plastic or rubber gloves and protective eye wear as the solution is acidic Wash hands thoroughly with lots of water if the solution comes in contact with the skin 1 Remove the protective cap exposing the coils and gold tip D O 2 Immerse in cleaning solution refer to illustration 33 for sensor 5 minutes to 10 minutes or until deposits disappear 3 Remove and rinse in deionized water use a soft cloth to wipe in direction of coils or a toothbrush to speed removal 4 Repeat
60. instrument enclosure Recommended use line power right hand entrance alarm output wiring second from right entrance D O sensor wiring third from right entrance serial communication left hand entrance AII conduit connections should be sealed with a gasket to maintain environmental integrity within the instrument enclosure Power supply wiring terminals are designed for 14 AWG conductors Supply should be protected by an external 15 A branch circuit CSA certified inch liquid tight fittings should be used to maintain the IP65 rating CAUTION Bonding between conduit connections is not automatic and must be provided as part of the installation CAUTION Signal wiring connected in this box must be rated at least 300 V Page 16 www iccontrols com um 865 25 203 IC Controls INSTALLATION Sensor Wiring TB201 The basic wiring scheme for all IC Controls WHT 6 0 TEMP D O sensors is shown in illustration 11 This wiring scheme is intended for cable lengths less than 3 meters 10 feet where electrical interference is expected not to be severe The D O sensor at 1 ppb D O produces less than luA It is recommended that the sensor be located as near as possible to the dissolved oxygen analyzer to minimize any effects of ambient electrical noise interference All long low level D O sensor signals should be TEMP D O SHIELD run through a dedicated conduit Take care to 0 D O route D O sig
61. ions cannot be removed from this list directly each error or caution will be removed automatically when appropriate e g errors associated with improper calibration will be cleared after a successful calibration Error messages are numbered Errors are identified as Input Source Input N umber for Error En e where n is the input number and e is the error and Caution Messages number For example El 1 is error 1 for the dissolved D O 1 oxygen input Cautions are identified as CAn e where eC 2 the e is 6 through 9 Pressure 3 Off scale errors are not numbered and are identified as Alarm A 7 Err and Err depending on whether the input is at Alarm B 8 the top or the bottom of the scale The off scale error is displayed instead of the sample reading and does not Table 1 Input numbers show up in the error menu with the numbered error messages if any The error LED will remain on as long as there is an unacknowledged error message or as long as any input is off scale Each source of error must be removed or acknowledged before the error LED will go off Caution messages will not cause the error LED to come on If no electrode or sensor is attached to an input it may be most convenient to turn off the input For example if there is no temperature input the temperature display would consistently be off scale without a resistor across the input terminals causing the error LED to always remain lighted Acknowledging an Error Mes
62. iting a value is like picking an option from a list only one item on the list can be seen at a time To change the setting press ENTER to go into edit mode the display will start blinking Use the Up or Down arrow key to switch between the possible options and then press ENTER again to accept the new setting and leave edit mode Example Turn alarm A off From the menu select AI Al A ON OF The analyzer will now display either on or OFF which are the two choices To change the setting press ENTER to go into edit mode the display will start blinking Use the Up or Down arrow key to switch between the possible options When on is displayed press ENTER again to accept the new setting and leave edit mode Summary of Key Functions in Edit Mode Enters edit mode The entire display or a single digit will blink to indicate that the analyzer is in edit mode Press the ENTER key again to leave edit mode and accept the new value Adjusts blinking digit upward or selects the previous item from the list If a 9 is displayed then the digit will loop around to show 0 Adjusts blinking digit downward or selects the next item from the list If a O is displayed then the digit will loop around to show 9 p gt Numeric values only move to the right one digit If blinking is already at last digit the display will loop to the sign on the left SELECT Numeric values move left one digit If blinkin
63. l currently transmitted in mA The display will update as the output signal changes based on the input signal To generate a test 4 mA to 20 mA output press ENTER to access edit mode Use the arrow keys to display the desired signal for the test typically 4 00 mA or 20 00 mA Press ENTER to have the displayed value transmitted The output signal will change to the displayed value This process can be repeated as often as necessary The output signal is held at the value displayed until the program leaves this part of the menu Page 38 www iccontrols com um 865 25 203 IC Controls ALARM FUNCTIONS ALARM FUNCTIONS Two alarms alarm A and alarm B are a standard feature Each alarm has an alarm contact associated with it which can be used for remote alarm indication or for control functions The two alarms function independently of each other Either alarm can monitor the dissolved oxygen temperature or pressure input Each alarm features an adjustable set point user selectable alarm type adjustable differential also called hysteresis unit selection and an on off switch The alarm types which are available are high low deviation and fault Alarms can be set anywhere between 0 ppm and 9 999 ppm or 0 ppb and 9 999 ppb for the dissolved oxygen input 5 C and 105 C for the temperature input and between 75 kPa to 130 kPa for the pressure input The differential setting is adjustable from 0 ppm to 100 ppm or O ppb to 100 ppb for dis
64. l passwords are entered by 2 be changed selecting PASS directly from the main menu Table 5 Access levels ENTERING A PASSWORD With security enabled select PASS from the main menu The analyzer will display 0000 Use the arrow keys to display your level 1 or level 2 password then press ENTER The program will display good followed by your access level before returning to the main menu If an incorrect password was entered the program displays bAd instead Refer to illustration 34 to determine how the program validates a password You will now have level 1 or level 2 access for as long as you are working with the analyzer The access level will automatically be restored to level 0 after no key has been pressed for 15 minutes This 15 minute timeout will also return to display the main sample It is good practice to return the analyzer to level 0 access or level 1 access if password 1 is set to 000 when you have finished using the analyzer This is accomplished by selecting PASS from the main menu then pressing ENTER with 0000 displayed ENABLING PASSWORD SECURITY When security is disabled both password 1 and password 2 are set to 0000 Security is enabled by setting password 2 to a non zero value Level 2 Select CONF PAS 2 from the menu The analyzer will display 0000 Use the arrow keys to change the display to the desired password for level 2 You can press SAMPLE at any time to safely cancel password en
65. le for pH ORP conductivity and chlorine plus as two wire versions with an optional explosion proof rating In the case of dissolved oxygen the sensor is an electrochemical cell similar to a battery that produces a current when oxygen is present therefore no applied voltage is required The analyzer conditions and digitizes the signal for maximum accuracy and then sends it out as a digital output and or on 4 mA to 20 mA outputs Features The 865 D O analyzer features Intuitive user friendly program easy to use Auto calibration using saturated air technique Self and sensor diagnostics Output hold during calibration 1 2 3 4 5 Stores 12 calibration records 6 Stores alarms caution and error messages 7 Stores running 1 000 minute dissolved oxygen trend 8 Two programmable 4 mA to 20 mA outputs 9 Two programmable alarms 10 Serial digital output and for remote operation 11 Three level security to protect settings 12 Durable housing IP65 NEMA 4X um 865 25 203 www iccontrols com Page 5 INTRODUCTION Specifications Analyzer 865 PROPERTY Display Display Ranges Keypad LED s Case Dimensions Panel Dimensions Weight Shipping Weight Shipping Dimensions PROPERTY Temperature Environment Ratings Electrical Ratings Electrical Requirements Certifications Page 6 IC Controls Physical Data CHARACTERISTIC Four and one half LCD digits 2 0 cm 0 8 in displays f
66. let with the cell at an angle of 15 degrees to 45 degrees from vertical refer to illustration 36 This arrangement will encourage bubbles to pass through the system with minimum dissolved oxygen upset NOTE Air has 20 9 oxygen or in parts per billion 209 000 000 ppb Water is saturated with dissolved oxygen at 8 240 ppb see Appendix C 25 C and 101 3 kPa so an air bubble can saturate about 25 000 times as much water or at 1 ppb can add an extra ppb to 25 000 000 times as much sample Refer to illustration 35 for recommended sample system arrangement Sample tubing should use gradual bends rather than 90 degree elbows to avoid entrapped air bubbles producing slow D O pull down Avoid if possible pressure reducing valves filters flow adjust needle valves and rotameters which frequently have dead chambers that entrap air bubbles that cause slow D O pull down Hook up the sensor to cell grounding wire for best static interference resistance provides good stable low level ppb dissolved oxygen readings Grab Sample PR NOTE Additional sample stream Atmospheric L components are waste Rz Constant recommended for Head Tank easy calibration and fe where entrained T solids may be encountered or pressure fluctuates 4 A bypass helps to Mounting Ground leat protect the electrode screws lt membrane extending M uci mL min it s lifetime by Illustration 36 Sensor flow cell set up Lat f all the
67. log The log is written both when a normal calibration is performed and when a calibration parameter such as offset or efficiency is manually adjusted Any change in any factor affecting the calibration is recorded Another feature is when the calibration is committed to the internal log The internal log is not written until the analyzer has not been used for 15 minutes then a single record is written the current calibration If for example two consecutive calibrations are done and then a number of manual changes to efficiency these changes only create a single log entry rather than filling 6 of the 12 available calibration event tag spaces For the ppb D O input the following factors are logged efficiency ppb D O at time of calibration temperature at time of calibration pressure at time of calibration e manual or automatic temperature compensation e manual or automatic pressure compensation For temperature the following factor is logged offset For pressure the following factor is logged offset um 865 25 203 www iccontrols com Page 65 Appendix H Data Capture IC Controls Appendix H Data Capture Example Windows 3 1 Terminal Program To illustrate the capturing of data on a computer following is the description for loading and setting up the TERMINAL program which is part of the standard Windows 3 1 operating system 1 Load Windows 3 1 then switch to the program manager 2 From the accessori
68. mentation of both calibrations and recent measurement trends plus serial communication capability with DCS systems and evolving technology Galvanic Measuring Cell The 865 25 dissolved oxygen measuring sensor WN Voltometer P N A2103012 is an electrochemical cell similar to a 5 Silver cathode battery that produces a current when oxygen is present Q 2HQ 4e gt 40H By using carefully selected electrodes in contact with an T Lead anode appropriate electrolyte a chemical reaction occurs that Pb gt Pb 26 uses electrons gained from oxygen molecules to produce a Electrolyte solution galvanic current directly proportional to the concentration of oxygen present Illustration 6 shows how such an Illustration 6 Basic galvanic cell electrode system works in a simple laboratory test Illustration 7 shows how these scientific principles can be implemented into a working dissolved oxygen sensor Also unlike an electrolytic cell in which a flow of current produces the chemical reaction there is no zero current as galvanic current is naturally zero when zero oxygen is present The A2103012 sensor uses a galvanic cell separated from the sample by an oxygen permeable PTFE teflon membrane The cell has a silver cathode in close contact with the PTFE membrane where e oxygen O gains electrons is a e reduced 40 became hydroxyl Silver cathode i ions OH and a lead Pb B anode that
69. n mA The display will be updated as the output current changes based on the input signal and the program settings 2 To simulate a different 4 mA to 20 mA output signal press ENTER to enter edit mode Use the arrow keys to display the desired output needed for testing the output signal Press ENTER to select the displayed value The output signal will be adjusted to put out the desired current This process can be repeated as often as necessary to output different signal levels 3 The output signal is held at the displayed level until the program leaves this menu selection Make calibration adjustments while the analyzer shows the output at 20 00 mA 4 Repeat the above steps for output 2 Page 48 www iccontrols com um 865 25 203 IC Controls ELECTRONIC HARDWARE ALIGNMENT Approach 2 Use Voltage Source to Adjust Input This faster calibration approach requires a voltage source for the input 1 To calibrate output 1 set in C Input a low enough signal to cause analyzer to indicate Err the analyzer will output 4 00 mA Reverse the polarity or input a high enough signal to cause the analyzer to indicate Err the analyzer will output 20 00 mA Repeat step 1 for output 2 TIP Both outputs can be simultaneously calibrated if you set in C for both inputs Be sure to return the inputs back to the desired parameters to be transmitted Typically D O for output 1 and temperature for output 2 Adjusting
70. nal wiring away from AC power COM SHD lines to minimize unwanted electrical Illustration 11 Sensor wiring interference When installing any instrument cable in conduit use caution to avoid scraping or cutting the cable insulation resulting exposure of the cable s internal shield wire will greatly increase the chances of system malfunction at any given time Avoid excessive twisting or coiling of all instrument cable to minimize possibilities for broken wire Make sure all connections are clean and tight Equipment Symbols A Caution refer to accompanying documents Protective conductor terminal Assembly of the Dissolved Oxygen Sensor This procedure should be done over a sink Wear thin plastic or rubber gloves and protective eye wear as the electrolyte is a caustic solution Wash hands thoroughly with lots of water if the electrolyte comes in contact with the skin Rinse until the slippery feel of the caustic disappears NOTE 1 The D O sensor should be assembled and charged while connected to the analyzer with the power on The analyzer presents a current route for the electrons released from oxygen in the air If the sensor cannot be connected to the analyzer during assembly charging short the D O lead and D O lead refer to illustration 11 to provide an alternate current path Failure to provide a current path will result in secondary undesirable reactions with byproducts that slow the sensor response when placed in ser
71. ncorrectly configured relay it will generate an alarm when there is no alarm and vice versa z z CLSd m 2 51 jvpc Metric or Imperial Units o E ET M WW A GRE we Ns RW BEGIN ui By default the analyzer will use metric units This means that temperature will be displayed using degrees Celsius and that the prompt for the temperature input will be C Using metric units the pressure CALIBRATE Offset is displayed as kPa The analyzer can also be made to use imperial units Using imperial units temperature will be displayed using degrees Fahrenheit and the prompt for the metric or imperial first temperature input will be F unit selection pressure will be displayed as psi throughout the program s For practical reasons the temperature input is always identified as C throughout this instruction manual and in the menus To select imperial units for the analyzer select unit from the in configuration menu then go into edit mode and change the C prompt to F Since this is a global setting both the units used for temperature and for pressure will change SEC hund 000 selectable only if security enabled 0000 Illustration 32 Configuration menu Page 42 www iccontrols com um 865 25 203 IC Controls CONFIGURATION OF PROGRAM Re initializing All Settings Occasionally it may be desirable to reinitialize all of the program se
72. not Tee L pressed the analyzer will return to the sample display after the 15 minute time out i Inlet 6 Output hold will be in effect until it is turned off or cate Y d until no key has been pressed for 15 minutes Bypass LA 7 After a successful calibration select d o EFF from the menu to inspect the new calibration value This value is used internally to determine the analyzer gain Illustration 18 In line calibration setup um 865 25 203 Www iccontrols com Page 27 CALIBRATION IC Controls In line Zero Test An in line zero dissolved oxygen check can be performed by closing the inlet valve and allowing the sample to drain completely then closing the calibration valve securely Pour the zero D O standard P N A1100193 into the constant head tank standpipe until it overflows from the flow cell to drain In line Grab Sample An in line grab sample dissolved oxygen check can be performed by inserting a grab sample funnel into the constant head tank standpipe and allowing it to overflow When the sample has overflowed for a couple of minutes to rinse down to ppb levels insert your vial and break the tip Keep the tip submerged for a minute to let the color develop then move quickly following test instructions to get your reading before air introduces an error Off line Calibration 1 Turn off sample flow 2 Remove the sensor from flow cell Refer to Removal of the Sensor from Flow
73. nput On Off Switch Metric or Imperial Units eee 26 Real Time Clogk u 6 entr ette tette 26 CALIBRATION In line Calibration iiie hee In line Zero Test aeo iie rient ettet In line Grab Sample Off line Calibration Off line Zero Test Calibration Errors Output Hold Temperature Compensation Selecting Manual Temperature Compensation 30 Barometric Pressure Compensation 30 Selecting Manual Pressure Compensation 31 D O Range Auto or Manual 3l Manual Ranging esee 3l Displayed Range neenon ene 3l IC Controls ERROR MESSAGES Acknowledging an Error Message Error Messages for Dissolved Oxygen Error Messages for Temperature Error Messages for Pressure Caution Messages for Alarms OUTPUT SIGNALS Wiring and Calibration Reversing the 4 mA to 20 mA Output Simulated 4 mA to 20 mA Output Automatic Range Sowitchng esee Enabling Output Auto Range Switching 36 Remote Indication of Range D Unit Selectpon eee Testing With 4 mA to 20 mA ALARM FUNCTIONS Wiring and NO NC Contacts Use of Relay Contacts
74. ntrols 865 MENUS 865 MENUS CAL main menu 15 min timeout if no key pressed Refer to listing of error and caution messages lt display home base list of available inputs SAMPLE ppb available units unit L on type ppm of input selected CHANGES Areas shaded in dark orange indicate program settings which can be changed by the user turn automatic range switching on off range number for automatic range switching Menu areas shaded in light blue indicate view only See Internal Data Log Menu See Serial Menu See Configuration Menu Accessible only when function is activated Illustration 1 Menu overview um 865 25 203 www iccontrols com Page 3 865 MENUS CALIBRATE metric or imperial unit selection E YES d a o o selectable only if 000 security enabled 1200 2400 4800 14 4 Illustration 5 Serial communication menu Page 4 www iccontrols com IC Controls internal data log menu when not logging list of available inputs frequency of log update in seconds continue logging overwriting oldest data stop logging when buffer full number of data points currently in buffer clear the buffer deleting all data points also send log data via serial port stop sending via serial port DO J input being logged 60
75. ols ANALYZER OPERATION Shutdown and Start Up Procedure Sample interruption less than 72 hours If the analyzer will not have flow for less than 72 hours but will have low ppb sample in the flow cell leave the instrument on and either neglect its output or put the analyzer in standby mode Sample interruption greater than 72 hours If no sample flow is expected for longer than 72 hours perform the following shutdown procedure This procedure will prevent possible build up of oxidation products in the sensor SHUTDOWN PROCEDURE 1 Leave power on 2 Turn off sample flow prior to the flow cell inlet 3 Close the drain from flow cell to prevent oxygen from entering flow cell 4 Keep flow cell full of ppb dissolved oxygen water Since the sensor consumes small quantities of dissolved oxygen it will store for months in a sealed flow cell if the power is on or if the cell leads are shorted D O and D O 5 If it is necessary to turn the analyzer power off first remove and disassemble the sensor over a drain while it is still wired to the analyzer refer to step 6 to step 9 Use the analyzer display reading to indicate the sensor is clean when it drops to low ppb levels 6 Remove white sensor cap and membrane module 7 Rinse electrodes with pure water and wipe dry to remove any trace of internal fill solution Using a clean low lint paper towel tighten the lead coils and wipe to a bright condition 8 Rinse membrane mod
76. or dissolved oxygen atmospheric pressure temperature efficiency error codes prompts and diagnostic information Dissolved Oxygen Temperature Barometric Pressure 0 00 mg L to 10 00 mg L or 0 01 ug L to 9 999 ug L 5 0 C to 105 C 23 0 F to 221 F 72 kPa to 130 kPa 8 pushbutton entry keys 2 alarms A and B 1 auto 1 error 16 0 cm H x 26 0 cm W x 9 0 cm D 6 3 in H x 10 2 in W x 3 5 in D 36 cm W x 66 cm H 14 in W x 26 in H 11 4 kg 25 0 Ib 13 6 kg 30 0 Ib 7 cm x 41 cm x 20 cm 28 in x 16 in x 8 in Environmental Data CHARACTERISTIC Operational 5 0 C to 45 C 41 0 F to 113 F Storage 10 0 C to 55 C 14 0 F to 131 P Relative Humidity 95 maximum non condensing Housing IP65 Nema 4X Pollution Degree 2 Installation Category II 115 230 VAC 0 25 A 50 60 Hz 115 230 VAC 10 50 W CSA C22 2 1010 1 92 equivalent to IEC 1010 1 LR 109591 3 UL Std No 3111 1 CE EN50081 EN55011 EN61000 es 665 1 3 www iccontrols com um 865 25 203 IC Controls INTRODUCTION Specifications Analyzer 865 PROPERTY Accuracy Precision Response Time Temperature Compensation Sample Conditions Sample Inlet Sample Outlet Security Alarms Outputs Communication um 865 25 203 Operational Data CHARACTERISTIC Dissolved Oxygen 2 reading or 0 1 ug L whichever is greater Temperature 0 1 C Dissolved Oxygen 2 reading or 2 digit
77. our and one half digit and plus minus sign used to display dissolved oxygen concentration temperature pressure error messages as well as the entire menu used to control the analyzer ppm LED Indicates that the sample is being displayed on the LCD with units in parts per million ppm dissolved oxygen ppb LED Indicates that the sample is being displayed on the LCD with units in parts per billion ppb dissolved oxygen error LED When the error LED is lit it indicates that an error or alarm condition has been detected Use the ERROR key to list errors alarm LED When lit indicates that the analyzer detects an alarm or out of limits condition Up and Down arrow keys Moves up and down in the menu In edit mode adjusts blinking digit or selects an item from the list Refer to the Edit Mode section Cancel left arrow key Moves left in the menu In edit mode moves left one digit or cancels edit Refer to the Edit Mode section Select right arrow key Moves right in the menu In edit mode moves right one digit Refer to the Edit Mode section Enter key Enters edit mode when displaying a parameter that can be edited In edit mode accepts the displayed setting Refer to the Edit Mode section Sample key From anywhere in the menu press the SAMPLE key to return to displaying the dissolved oxygen measurement Cal key From anywhere in the menu starts the 865 analyzer into calibration mode Error key If error LED i
78. outputs for longer outages use standby mode in the main menu um 865 25 203 Www iccontrols com Page 29 CALIBRATION IC Controls Temperature Compensation Almost all industrial applications encounter fluctuating temperature and need rapidly responding automatic compensation IC Controls dissolved oxygen sensors typically have a temperature compensator TC built into the D O sensor The TC is wired to the analyzer allowing the 865 to provide digital temperature compensation If no automatic temperature compensator is available or needed manual temperature compensation can be used If the temperature of the sample is constant set the manual TC temperature to the process temperature If the process temperature varies or is unknown a default temperature of 25 C or 77 F is normally used Selecting Manual Temperature Compensation To see the current temperature compensation method used by the 865 analyzer during calibration select d o tc from the menu refer to illustration 20 Either Auto for automatic temperature compensation or SEt for manual temperature compensation set point will be displayed depending on the current setting To change the setting from Auto to SEt press ENTER to edit the current setting The display will start blinking indicating that a selection needs to be made Use the Up or Down arrow key to display SEt Press ENTER to select manual temperature compensation With SEt still displayed press
79. ow which of dissolved oxygen temperature or pressure is displayed Pressing Right arrow key displays the sample reading again 3 The temperature and pressure input can effectively disappear from the menu if they are turned off in the configuration menu To change the configuration refer to Input On Off Switch section in the Edit Mode section 4 The main sample ie the input that is displayed first when the SAMPLE key is pressed can be changed By default the main input is d o Change the default in CONF in dFLt Arrow Keys The four arrow keys on the keypad are used to move around in the menu Example Press SAMPLE to make sure that display is at home base Press the Right arrow key One of the prompts in the column starting with d o refer to illustration 1 will be displayed Use the Up or Down arrow keys to display the prompt above or below If the prompt at the top or the bottom is displayed the program will loop around Press the Up or Down key until AL is displayed Press the Left key to return to the sample display Press the Right key again and AL will be displayed Page 24 www iccontrols com um 865 25 203 IC Controls EDIT MODE EDIT MODE Edit mode is used to change a numeric value or to select between different options Values and settings which can be edited are identified by the darker shading in the menu Any frame which has a white background cannot be modified Editing by Selecting a Setting Ed
80. pb has been set The differential setting will continue to function as for high and low alarms Fault Alarm A fault alarm for an input will be set when anything goes wrong with that input Something is wrong with an input if the input is off scale or an unacknowledged error message exists for that input Caution messages do not cause a fault alarm To use an alarm as a fault alarm select FUNC from the alarm menu then select Flt To enable the alarm make sure the on off switch is set to on Also set the input in the alarm menu to the desired input either dissolved oxygen temperature or pressure The set point and differential for the alarm have no effect when the alarm is used as a fault alarm Alarm Indication If there is an alarm condition on either alarm A or B the alarm LED on the front panel will be lighted and the corresponding alarm relay will be set The error menu will also show a numbered caution message for the alarm however an alarm caution will not light the error LED The heading Caution Messages for Alarms in the Error Messages section lists the codes used to indicate alarm conditions In case of a fault alarm both the error and alarm LED s will be lighted In addition an alarm condition for an input will cause the sample display for that input to alternate with the alarm function display either LO HI dEv or FLt Press SAMPLE then use the Up or Down key to display each of the two samples if necessar
81. r Calibrate B grains and o Tee ei Tee solids to drain the bypass provides a NOTE Angle convenient point to mounting is Calibrate Inlet obtain calibration ded valve valve recommended to samples plus encourage any l lil provides a constant bubbles in the pressure at the sample to rise to sensor the exit and be gt Drain swept to drain um 865 25 203 www iccontrols com Page 61 Appendix G Serial Communications IC Controls Appendix G Serial Communications Format of Analyzer Output Data transmitted by the analyzer is in simple ASCII format No special software is needed on the computer to receive the ASCII data The 865 continuous output consists of OFF three data fields separated by commas Each line of data is terminated by a linefeed newline Comma separated fields are designed to make it easy to import the data into other programs for analysis for example into a spreadsheet see Appendix H The RS232 port can be used as a data port to send ppb D O SET temperature pressure and auto range number default frequency is 60 seconds or as a two way communication port for remote operation if an interface format program is available The ASCII data port function can be turned on off and controlled from the Internal Data Log menu both ASCII and serial must be on The 865 analyzer uses 8 data bits no parity I stop bit and 9600 baud Illustration 37 Serial communication menu IC Net INTELLIGENCE ACC
82. s Temperature 0 1 C 90 within 30 s default function of flow and temperature Auto 5 0 C to 105 C 23 0 F to 221 F Manual 5 0 C to 105 C 23 0 F to 221 F Flow 50 mL min to 200 mL min Temperature 2 C to 45 C 35 0 F to 113 F with standard D O sensor P N A2103012 Option 82 PEEK D O sensor P N A2103042 allows for temperatures up to 65 C 149 F Pressure lt 400 kPa 60 psi 4 bar Drain Atmospheric 14 in NPT tube fitting in MNPT fitting 3 access level security partial and or all settings may be protected via 3 and or 4 digit security code Two independent assignable programmable configurable failsafe NO NC or auto range BCD alarm relays SPDT Form C rated 10 A 115 V 5 A 230 V 5 position BCD contact closure Two continuous assignable programmable 4 mA to 20 mA or 0 mA to 20 mA outputs isolated max load 600 Q Convertible from 1 VDC to 5 VDC or 0 VDC to 5 VDC Via RS232 bidirectional serial data port require IC Net 2000 software es 865 1 3 www iccontrols com Page 7 INTRODUCTION IC Controls Specifications Sensor A2103012 Measurement Range 0 01 pg L to 9 999 ug L Minimum Temp rature uu uuu uuu e ERR RER REL ER ER R LEEIE SABER ER P ERA RE RE Lad 2 C 35 F Maximum Temperature 45 C 113 F Maximum Pressu te EE 400 kPa 60 psi Principle of Operation Galvanic Electrode Materials S 11 0 e
83. s ENTER The analyzer will display good followed by ACC 1 indicating that the password is valid and that we now have level 1 access Try changing the output 1 low setting again You will find that this time we can go into edit mode unhindered Select PASS from the main menu again Enter the level 2 password which is 0002 We are going to set the level 2 password to 0000 again to disable password security Password 2 is found in the configuration menu and therefore requires level 2 access before it can be accessed Select CONF PAS 2 from the menu Press ENTER with 0000 displayed Both passwords are set to 0000 again and password security is disabled um 865 25 203 www iccontrols com Page 55 Appendix B Unit Conversion Appendix B Unit Conversion Dissolved Oxygen Units ppm parts per million ppb parts perbillion ppt parts pertrillion 1 ppm 1000 ppb 1 ppb 0 001 ppm 1 ppb 1000 ppt IC Controls 1 ppm is approximately I mg L Some variation occurs because the weight of water varies slightly with temperature Percent saturation is directly related to the temperature and pressure of the system A given ppb reading will give a different percent saturation depending on the variation in temperature and pressure Refer to Appendix C for a table of saturated D O values Temperature Units 5 C F 32 gt F 32 F 2X C 32 Pressure Units kPa 6 895 kPa psi X 6 895 1
84. s lit then pressing the ERROR key causes the LCD to display an error code If no error condition has been encountered the LCD will show NONE ppm lt CAL ENTER SAMPLE ppb lt error O lt lt Y gt alarm O ERROR CANCEL SELECT Illustration 14 Front panel keypad of analyzer Page 20 www iccontrols com um 865 25 203 IC Controls ANALYZER OPERATION Start up Procedure 1 Install the model 865 25 according to the instructions in nstallation section Verify power supply has been wired for proper voltage and instrument is suitably grounded 2 Turn on flow at sample inlet 3 Power up the 865 analyzer The startup procedure will begin by alternately flashing tESt and while performing the memory tests 4 The analyzer will display in sequence the analyzer model number in this case 865 and the program version number e g 2 01 5 The display test lights each of the implemented display segments in turn At the same time each of the LEDs will be lighted in turn 6 If the analyzer passes all the tests then the hardware is functioning properly and the analyzer will proceed to display dissolved oxygen 7 If the analyzer displays Err this indicates that the dissolved oxygen input is off scale The error LED will be lighted as long as either the dissolved oxygen or the temperature input is off scale An off scale error can indicate that a sensor is not in solution is off sc
85. s not the same reading at which the alarm is turned off again This phenomenon is referred to as the hysteresis LED Light Emitting Diode LEDs are used as on off indicators on the front panel of the 855 Menu the series of prompts which determine the layout of the program used by the analyzer Microprocessor an integrated circuit chip which executes the program on the EPROM chip and controls all the input output functions NC Normally closed NO Normally open Normally closed each of the alarm contacts can be wired and configured as normally open or normally closed A circuit which is wired normally closed will be closed i e the external device wired to it is turned on when the analyzer is not powered Normally open a circuit which is wired normally open will be open i e the external device wired to it is turned off when the analyzer is not powered ppb Concentration as parts per billion ppm Concentration as parts per million RAM Random Access Memory Memory in a RAM chip can be both written to and read from The contents of RAM will disappear as soon as the RAM chip loses power The RAM chip has a battery backup device which preserves the contents of the RAM chip for a considerable time even if the analyzer is turned off All settings are stored in RAM TC Temperature compensator Temperature compensation correction for the influence of temperature on the sensing electrode The analyzer reads out concentration as if the proce
86. sage To turn off the error LED and shut down the external fault alarm contact the error must be acknowledged To acknowledge the error press the ERROR key or select Err from the main menu Use the Up or Down arrow key until the error message to be acknowledged is displayed Errors are displayed with either a positive sign or a negative sign in front The sign is used to indicate an active or unacknowledged error the sign indicates an inactive or acknowledged error Acknowledging the error will change the sign from to Press ENTER to go into edit mode The or sign will be flashing Use the Up or Down arrow key to change the sign then press ENTER again An acknowledged error message is cleared for one occurrence of the error only If the error reappears the sign changes from to and the error message must be acknowledged again Page 32 www iccontrols com um 865 25 203 IC Controls Error Messages for Dissolved Oxygen Error E0 00 Description No dissolved oxygen measurement Electrode has not stabilized after 5 minutes of calibration E1 2 Electrode efficiency would be greater than 500 Previous setting retained Electrode efficiency would be less than 33 Previous setting retained E1 3 E1 4 Pressure Causes Open circuit Sensor reading is below the low end of range selected Poor electrode performance sample D O temperature or pressure is not stable interference
87. sembled retainer tip and slowly lower the iub electrode coils see illustration 13 down into the Illustration 12 Membrane module assembly cap until the threads touch Raise and repeat ensuing all air is displaced around the coils 5 Rotate the sensor body until you can see the flat area through the threads Slowly rotate the cap on allowing the excess electrolyte and bubbles to overflow up the flat Lightly tap the cap to dislodge air bubbles Continue to slowly rotate the cap until a firm stop is reached CAUTION Do not force the cap beyond the stop the parts are plastic and can break 6 wm Dry the D O sensor and blot the tip Examine the tip the membrane should be smooth with no wrinkles or cuts and the surface contours of the silver electrode should be clear There should be no lines from trapped air bubbles between the membrane and the silver electrode imiB s If there are no visible problems the D O sensor is ready to be put into service A sensor with no air inside will come down in a few minutes A sensor with trapped air inside will come down to 1 ppb in several hours or days If there are wrinkles lines from large air bubbles or tiny air bubbles present disassemble and re charge the sensor Illustration 13 Sensor assembly Page 18 www iccontrols com um 865 25 203 IC Controls INSTALLATION Inserting the Sensor into the Flow cell 1 Inspect the inside of the flow cell for any foreign ma
88. solved oxygen Wiring and NO NC Contacts The alarm contacts for alarms A and B may be wired as normally open or normally closed By default the analyzer assumes the alarm contacts are wired normally open A normally open alarm contact will be inactive if there is no alarm condition and will be active when there is an alarm condition If the program configuration and the wiring for each alarm do not match then the incorrectly configured alarm contact will generate an alarm when there is no alarm condition and vice versa The factory default for each relay is to be jumpered in the N O position To change an alarm relay from N O to N C remove the jumper from the N O position and jumper the N C position The jumper positions for the two relays are circled in illustration 26 Relay B has additional jumper positions marked NORM and ACAL For normal alarm operation the NORM position is jumpered The ACAL position is used for the optional auto calibrator Factory default is NORM jumpered and ACAL not jumpered 40 3S0H To change the configuration of the alarm contacts select CONF AL from the menu Illustration 26 Alarm wiring Use of Relay Contacts By default the relay contacts will be used to indicate alarm conditions If there is an alarm condition for either alarm then the alarm will be indicated using both the alarm LED and the relay contact This function of the relay contacts can be selected by setting AL ArNG
89. splays 0000 Both passwords 1 and 2 are set to 0000 and security is now disabled The main menu will be changed to exclude the PASS frame and the configuration menu will no longer have the PAS 1 frame ENTER PASSWORD PASSWORD YES 2 ENTERED NO PASSWORD YES 1 ENTERED 0000 ENTERED Page 54 ACCESS ACCESS ACCESS ACCESS LEVEL 0 LEVEL 0 LEVEL 1 LEVEL VIEW ONLY VIEW ONLY OPERATOR COMPLETE DISPLAY DISPLAY DISPLAY DISPLAY bAd good good ACC 0 ACC 0 ACC 1 ACC 2 www iccontrols com Illustration 34 Password validation um 865 25 203 IC Controls Appendix A Security PASSWORD EXAMPLE A QUICK TOUR With security disabled select CONF PAS 2 from the menu Set the level 2 password to 0002 Select CONF PAS 1 from the menu Set the level 1 password to 001 Security is now enabled Select PASS from the main menu Press ENTER with 0000 displayed The analyzer will display ACC 0 to indicate we are now at access level O Try changing the output 1 low setting Select out out1 LO from the menu The current value will display Press ENTER to go into edit mode The analyzer will display PASS for 2 seconds because we need to enter a password first Level 1 security is needed to change this setting Select PASS from the main menu again Change the displayed value to 0001 which is the level 1 password Pres
90. ss were at 25 C or 77 F regardless of actual solution temperature Page 52 www iccontrols com um 865 25 203 IC Controls Appendix A Security Appendix A Security The analyzer has a built in password protection system This security system is disabled by default and does not need to be enabled if no password protection is necessary If you choose not to enable the password protection system then the user will have unrestricted 4 5 level description access to all analyzer settings available through the View only access menu as described in this manual Usage operator and for Having security disabled gives the user the same access 0 information only to the program as being at access level 2 at all times Access to editable settings With security enabled anyone can view settings calibration setpoint span anywhere in the program When you do not have etc except for configuration proper access rights the program will display PASS menu m for 2 seconds indicating that a proper password must Usage calibration and be entered before being allowed to proceed l technical adjustments This appendix contains instructions for setting Master access to all settings passwords in the configuration section of the menu Usage configuration of Daily usage of the analyzer by the operator does not analyzer installation require knowledge of setting passwords in the management Passwords can configuration section since al
91. ssolved Oxygen Analyzer Assembly 865 D O power PCB D5920101 Assembly 865 display board Circuit breaker switch 0 25 A Assembly 865 case complete with keypad D5970171 18 position inter board connector 865 25 Sample Conditioning Panel ppb stainless steel flow cell Teflon ferrule for ppb flow cell P N A21030004 Stainless steel nut for ppb flow cell P N A21030004 Stainless steel inlet fittings and O ring O ring for inlet fitting Dissolved Oxygen Sensor Replacement dissolved oxygen sensor 1 m lead Replacement dissolved oxygen sensor 3 m lead Replacement dissolved oxygen sensor PEEK 1 m lead to 65 C Replacement dissolved oxygen sensor PEEK 3 m lead to 65 C Replacement membrane module and fill solution kit Replacement membrane module and fill solution kit PEEK Electrode cap Electrode cap PEEK Consumable Supplies Deionized water 500 mL A1100192 6P for 6 pack Zero D O standard 500 mL A1100193 6P for 6 pack D O sensor cleaning solution 500 mL A1100194 6P for 6 pack Low range grab sample test kit for 0 ppb to 40 ppb D O www iccontrols com um 865 25 203 IC Controls Appendix F Installation No Sample Panel Appendix F Installation No Sample Panel Flow Cell Mounting 1 2 3 4 5 There are mounting screws on the bottom of the cell and a triangle bracket Allow 8 inches to 12 inches clearance above the flow cell nut for sensor removal Arrange the cell for up flow to the in
92. steps 2 amp 3 until coils and tip look clean and coils Keep coils have a gray shine surface 5 Re assemble the D O sensor with a new membrane Illustration 33 D O sensor cleaning module 6 Fill membrane cap with fill solution and re assemble sensor as per Assembly of the Dissolved Oxygen Sensor in the Installation section 7 Calibrate and check that efficiency is above 50 8 Repeat steps 2 to 7 as needed to get at least 50 efficiency If 50 efficiency unattainable D O sensor should be replaced Instrument Cleaning 1 For light dust use deionized water on a lint free wipe and clean the LED window first then the remaining parts of the enclosure 2 For heavy dirt use methyl hydrate on a lint free wipe and clean the LED window first then the remaining parts of the enclosure um 865 25 203 www iccontrols com Page 45 TROUBLESHOOTING IC Controls TROUBLESHOOTING High D O Readings The most common problem with low level ppb dissolved oxygen is with air leaks into the sample Fittings pressure regulator valves rotameters valves and plastic tubing are prone to air leaks Air leaks can be confirmed by increasing the sample flow If the D O reading decreases with increased flow and returns when the flow returns a leak is strongly suspected since more volume dilutes the oxygen leaking in Some components may trap air bubbles producing a similar flow change but not quite full return plus will slowly fall toward
93. tant information automatically tagged with a date time stamp The analyzer stores the last 12 calibration records for each input which is sufficient for a year s worth of calibration history when monthly calibrations are performed Events such as power down power up and alarms are recorded in a separate log which tracks the last 20 events time date stamped When combined with the internal data logging capability this allows the operator to recall factors leading to alarm conditions Retrieving Calibrations and Events At any time the date time stamped events can be retrieved from the analyzer using a computer running the IC Net program The display limitations of the analyzer leave no way to view event records using only the analyzer There is no menu for events and logging is done without any user intervention Page 64 www iccontrols com um 865 25 203 IC Controls Appendix G Serial Communications Event Records Sample output of event records 1 Thu Dec 18 14 50 47 1997 ANALYZER OFF 2 Thu Dec 18 17 47 30 1997 ANALYZER ON 3 Thu Dec 18 17 47 30 1997 E1 5 4 Thu Dec 18 17 47 31 1997 E2 2 5 Thu Dec 20 10 11 21 1997 CA7 6 The first number is sequential The next part of each line is the date time stamp The final part is the event record Different time date formats are available Calibration Records Each time a calibration for D O temperature or pressure is changed the change is recorded in a date time stamped
94. the low ppb readings Alleviate the problem by finding and eliminating the leak or bubble retaining housing NOTE Air contains 20 9 oxygen or in parts per billion 209 000 000 ppb Water is saturated with dissolved oxygen at 8 240 ppb refer to Appendix B 25 C and 101 3 kPa so air can saturate about 25 000 times as much water or at 1 ppb can add an extra ppb to 25 000 000 times as much sample Slow Response Typically due to excessive sample line length and low flow producing long sample transport lags Resolve by adding a fast flow loop with the sensor in a short side stream or by shortening the line Slow response can also be caused by a buildup of dirt in the sample line which greatly increases the porous surface area that can absorb and release oxygen Resolve by adding a fast flow loop with the sensor in a short side stream or by shortening the line Alternatively a dirty water sample system may be needed Readings drop fast after calibration but hang up well above expected level then fall slowly Due to an air bubble trapped in the sample system Refer to the heading Tip How to clear an air bubble below Readings go high or off scale and won t come down Also the efficiency goes high Typically an indication of a pinhole or rip in the membrane Replace the membrane module with a new one Readings consistently low or spike low Characteristic of wiring problems between the analyzer and the sensor an open circuit in the field wirin
95. tion Should not be D O sensor will fail refer to sample requirements Use manual temperature compensation or refer to Error Messages for Temperature Check electronic calibration Check TC wiring connections or install TC Replace TC use new D O sensor or use manual temperature compensation Page 33 ERROR MESSAGES Error Messages for Temperature Error Description Causes E2 1 Temperature Temperature is lower than 5 C reading off Electronic calibration needed scale low E2 2 Temperature Temperature compensator TC not reading off present or open circuit scale high Temperature is higher than 105 C Electronic calibration needed Error Messages for Pressure Error Description Causes E3 1 Pressure Pressure less than 75 kPa reading off scale low Electronic calibration needed E3 2 Pressure Pressure greater than 130 kPa reading off scale high Electronic calibration needed Caution Messages for Alarms Caution Number Description CA7 6 Alarm A High alarm CA7 7 Alarm A Low alarm CA7 8 Alarm A Deviation alarm CA7 9 Alarm A Fault alarm CA8 6 Alarm B High alarm CA8 7 Alarm B Low alarm CA8 8 Alarm B Deviation alarm CA8 9 Alarm B Fault alarm Page 34 www iccontrols com IC Controls Solutions Verify process and sensor location Follow procedure in Hardware Alignment section Install TC check TC wiring or replace D O sensor Turn off temperature input Follow Input On Off
96. trimpot to a reading of 2 50 V at TP200 while inputing 0 120 VDC through a 10K 1 resistor 0 120 VDC simulates 8 240 ppb D O at approximately 100 efficiency under the above conditions 7 Return analyzer to automatic range selection by selecting CONF in d o Auto from the menu and editing the setting to read YES Alignment of Temperature Input Circuit The temperature input can be adjusted both by making electronic adjustments and or by having the program compensate for differences in offset Both procedures are described below Adjusting Electronic Calibration 1 Remove any offset calculated by a previous software calibration of the temperature input Select CONF in C OFFS from the menu and edit the offset to read 0 0 2 Set up a precision multimeter Fluke 8051A or equivalent to read VDC 3 Use the TEMP sensor connection TB201 2 as common Place a 100 Q 1 resistor across T and T terminals Adjust blue trimpot VR201 for a reading of 0 200 V at TP202 Refer to drawing D5920101 for component locations 4 Place a 138 5 Q 1 resistor across T and T terminals Adjust blue trimpot VR202 for a reading of 4 85 V at TP202 Refer to drawing D5920101 for component locations 5 Close the case and press SAMPLE followed by the Down arrow key to display the temperature reading 6 Re insert the 100 1 resistor and adjust VR201 until the display reads 0 0 C 0 1 C 7 Re insert the 138 5 Q 1 resistor and a
97. truction manual and when not having been subjected to accident alteration misuse abuse freezing scale coating or poisoning ions Chemical solutions standards or buffers carry an out of box warranty Should they be unusable when first out of box contact IC CONTROLS immediately for replacement To be considered for warranty the product shall have an RA Return Authorization number issued by IC CONTROLS service department for identification and shall be shipped prepaid to IC CONTROLS at the above address In the event of failure within the warranty period IC CONTROLS or its authorized dealer will at IC CONTROLS option repair or replace the product non conforming to the above warranty or will refund the purchase price of the unit The warranty described above is exclusive and in lieu of all other warranties whether statutory express or implied including but not limited to any implied warranty of merchantability or fitness for a particular purpose and all warranties arising from the course of dealing or usage of trade The buyer s sole and exclusive remedy is for repair or replacement of the non conforming product or part thereof or refund of the purchase price but in no event shall IC CONTROLS its contractors and suppliers of any tier be liable to the buyer or any person for any special indirect incidental or consequential damages whether the claims are based in contract in tort including negligence or otherwise wit
98. try Press ENTER to enter the password into memory and to enable password security The analyzer program automatically returns to the configuration menu With only password 2 set to a non zero value level 2 access is required to make changes in the configuration menu but all other settings are unprotected Effectively the user will always have at least level 1 access um 865 25 203 Www iccontrols com Page 53 Appendix A Security IC Controls Level 1 At this point password 1 is still 000 You may optionally enable operator access control or level 1 security by changing the level 1 password from 000 to a non zero value Change the password by selecting CONF PAS 1 from the menu then entering an appropriate 3 digit password RECORDING YOUR PASSWORDS You may want to write down the passwords you set and store them in a secure place Once a password has been set there is no way to redisplay it Since passwords are set in the configuration menu level 2 access is required to change either password If you have forgotten the level 2 password there is no simple way to regain access to the analyzer Contact the factory if you find yourself locked out of the analyzer DISABLING PASSWORD SECURITY Password security can be disabled by setting the level 2 password to 0000 In order to change the password you must first have level 2 access to the program Select CONF PAS 2 from the menu then press ENTER when the program di
99. tter wipe out if necessary It should appear clean shiny and bright 2 Insert the assembled sensor through the nut and sealing O ring Rock the sensor back and forth to pass the O ring 3 Press slowly all the way down until the sensor firmly reaches the stop 4 By hand tighten the nut firmly to get a good seal This should be sufficient for 5 psi to 10 psi pressure Give the nut an extra quarter turn beyond finger tight to keep out tramp oxygen NOTE The flow cell is not intended for use at high pressure The teflon seal ring is not designed to hold against pressure Removal of the Sensor from Flow cell 1 Stop the sample flow to the dissolved oxygen sensor and vent the sample line to atmosphere 2 Unscrew the nut and gently rock the dissolved oxygen sensor back and forth to ease the O ring seals back up the compression throat CAUTION Removal of the dissolved oxygen sensor from a sealed flow cell will vacuum stretch the thin dissolved oxygen sensing membrane Stretching the membrane will cause slow response and higher readings at low ppb levels Parting the membrane will cause dissolved oxygen sensor failure 3 When the dissolved oxygen sensor has been fully removed wipe the sensor clean and then proceed to the calibration procedure or maintenance section as necessary um 865 25 203 www iccontrols com Page 19 ANALYZER OPERATION IC Controls ANALYZER OPERATION Description of Basic Unit Controls LCD display Displays f
100. ttings to bring them back to default Executing an initialization will cause the analyzer to reset all the program variables and settings to factory defaults Parameters such as the output signal settings alarm settings and the program configuration will need to be re entered if they were different from the factory default settings Select CONF init ALL from the menu The display will flash do Nothing will happen if you press CANCEL or SAMPLE The analyzer will re initialize only when the user presses ENTER Password Security The factory default is no security No password security should be necessary if you are the only user and no protection of settings is needed Password security should be implemented for critical applications where program settings may only be changed by authorized personnel For minimal security IC Controls advises that the user set a level 2 password Leaving the level 1 password at 000 gives the operator complete access to all areas of the program but does not allow settings to be changed in the configuration menu With minimal security in place unauthorized users are prevented from enabling password security Appendix A describes how to enable or disable security Real Time Clock The analyzer maintains an internal date time clock used for internal date time stamping of system events and the internal data log Both the system events and the internal data log are accessed using the IC Net Intelligenc
101. ule blot dry and store in original plastic case in which it was shipped 9 Place the white sensor cap onto the sensor and store the sensor in it s box 10 Turn off power A disassembled sensor stored in a clean dry container can keep for years START UP IF STORED IN A SEALED FLOW CELL 1 Open the drain valve 2 Open the sample inlet valve 3 The system is ready to measure ppb dissolved oxygen START UP IF STORED DISASSEMBLED AND DRY Refer to Assembly of the Dissolved Oxygen Sensor in the Installation section Standby Mode Standby mode can be selected from the main menu In standby mode the alarms will not function and the 4 mA to 20 mA outputs will go to 4 00 mA When SAMPLE is pressed the inputs will show StbY instead of the normal input measurement The analyzer will not resume normal operation until it is taken out YES of standby mode While in standby mode the entire menu and all settings are accessible to the operator as before None of the settings will take effect until the analyzer is returned to normal operation The standby feature is protected by security level 2 Illustration 15 Standby menu um 865 25 203 www iccontrols com Page 23 EASY MENU IC Controls EASY MENU The layout of the program is shown in the 865 Menus starting on page 3 Remembers Where You Were The analyzer remembers where SAMPLE is The sample display is home base for the program The program also remembers which menu selections
102. vice NOTE 2 Ensure all air bubbles are removed during assembly Air has 20 9 oxygen or in parts per billion 209 000 000 ppb Water is saturated with dissolved oxygen at 8 240 ppb refer to Appendix B 25 C and 101 3 kPa so an air bubble can saturate about 25 000 times as much water or at 1 ppb can add an extra ppb to 25 000 000 times as much sample 1 Remove the protective cap exposing the lead coils and silver tip Inspect the sensor to ensure the coils are clean and the silver electrode is bright If the coils are tarnished wipe in the direction of coils with a low lint paper towel NOTE Ensure brown sealing O ring is seated in sensor groove um 865 25 203 www iccontrols com Page 17 INSTALLATION IC Controls 2 Hold the retainer tip at about 60 degrees and add Z 1154 two drops of electrolyte Then install the membrane Membrane module in the cap with the membrane facing down a Module so that it covers the center hole in the cap as per illustration 12 Push the membrane module firmly Y in to force the electrolyte drops around the cap e O ring bottom displacing any air 3 Holding the retainer tip with membrane module 2 x installed in an upright position fill with electrolyte until the center cavity is full Tilt at about 60 degrees and add an extra inch of electrolyte Tip observing that the crack around the membrane Retainer module fills with electrolyte and air is displaced 4 Hold the as
103. w iccontrols com Page 21 ANALYZER OPERATION IC Controls Start up Settings The 865 dissolved oxygen analyzer uses a sensor with a galvanic cell which has an electrochemical zero current output at 0 ppb dissolved oxygen Full scale calibration is easily done using atmospheric air as the oxygen standard The 865 needs only to have the operator remove the cell expose it to air plus enter the calibrate command All stabilization temperature and pressure compensation plus calibration adjustments are automatic Temperature plays a major role in dissolved oxygen readings The 865 has stored temperature vs dissolved oxygen tables in its memory A temperature detector is in close contact with the dissolved oxygen sensing tip in the sample The temperature sensor can be field calibrated but comes from the factory pre calibrated Pressure also plays a significant role during calibration The 865 has stored pressure vs dissolved oxygen tables stored in its memory A pressure sensor is supplied for automatic pressure compensation Refer to Appendix C for a table of saturated D O values at various temperatures and pressures Changing Settings Analyzer settings and parameters can be viewed and or changed at any time Refer to the menus on pages 3 and 4 the areas shaded in dark orange indicate program settings which can be changed by the user Menu areas shaded in light blue are view only menus Page 22 www iccontrols com um 865 25 203 IC Contr
104. y Each sample frame will first display the sample reading then after two seconds the alarm type for that input if any Using Alarms for On Off Control The alarms can also be used for process control the alarm contacts will then function as on off signals for switches controlling a valve pump motor etc The set point determines the control point of the system and the setting of the differential controls the amount of corrective action before a controlled shut off occurs Examples of high and low control using the alarms are shown in the following illustrations LOW CONTROL HIGH CONTROL NC SETPOINT 1 sample h lt Bi mpl Pa Piet Z CE age ek TW TS a a a Rod time time Illustration 31 Low control Illustration 30 High control um 865 25 203 www iccontrols com Page 41 CONFIGURATION OF PROGRAM IC Controls CONFIGURATION OF PROGRAM The 865 analyzer has been designed with ease of use in mind In most cases the analyzer factory configuration will handle the application and no configuration of the analyzer is necessary AL b Relay Contacts NO NC The 865 program by default assumes the relay contacts are wired normally open A normally open relay contact will open if there is no alarm and will be closed by the microprocessor when there is an alarm condition If the program configuration and the wiring do not match the i

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