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Model 855 User Manual

1. differential differential SETPOINT control on Fa time time Illustration 28 High control Illustration 29 Low control Page 36 www iccontrols com um 855 221 IC Controls CONFIGURATION OF PROGRAM CONFIGURATION OF PROGRAM The 855 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 Relay Contacts NO NC The 855 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 erm membrane o zen do not match the incorrectly configured relay it will generate an alarm when there is no alarm and vice versa input damping sec CALIBRATE Input On Off Switch Sa 5 Offset Temp The inputs have been provided with an on off switch By default the D O and temperature inputs are on The most common use of this feature is to turn off the temperature input if no temperature compensator has been installed Turning off an input will make the respective input s display at the left side of the menu disappear as if it did not exist To turn off the temperature input for example select CONF in C ON OF from the menu and edit the setti
2. dW31 L 0d 40193135 8 40193135 39Nv3 Hd 4 0 515 dW3L d U 915 ES EA away A8 DAS OWDI 19 NO DACH CH 865 o o SI 225 MMS432N 9n en R63 Y9ILZIWN 5 90622 662 O Hl8V3 V9T9WON O Z GZOLGSEN en CH Lib AV1dSid SSW um 855 221 www iccontrols com Page 60 1 Controls DRAWINGS D4830022 Mounting Dimensions 7 8740 4 7240 20 1700 1 7500 2 0000 2 0000 2 9527 20 8750 6 CONTROLS dr Orangeville Ontario Canada hk SC MILE MOUNTING DIMENSIUNS code dwg no n4830022 RE V um 855 221 www iccontrols com Page 61 DRAWINGS 1 Controls D4950053 2 inch Pipe Wall Mounting Kit 8 0000 ley dote 0 CONTROLS dr 8 31 95 Orangeville Ontario Canada chk TITLE 2 opp PIPE WALL MOUNTING KIT 652 655 jowo 0 54950053 RE V scale sheet 1 1 Page 62 www iccontrols com um 855 221 1 Controls D4950054 Panel Mounting Kit 9 5000 8 9000 BEZEL 1 PAN
3. IC Controls ELECTRONIC HARDWARE ALIGNMENT 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 in 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 select 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 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 4 Err analyzer will output 20
4. be used to send ASCII format serial pH and temperature default frequency is 60 seconds as a two way communication port for remote operation if an interface format program is available No special software is needed on the computer to receive ASCII data 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 Data transmitted by the analyzer is in simple ASCII format No special software is needed on the computer to receive the ASCII data only an ASCII terminal program such as Hyperterminal on MS Windows systems 855 continuous output consists of two data fields containing input values separated by commas Each line of data is terminated by a linefeed newline Comma separated fields make it easy to import the data into other programs for analysis for example into a spreadsheet Wiring and Enabling 1 It is good practice to first turn off the analyzer and the computer before connecting a serial cable 2 Wire the RS485 cable into the terminal block TB1 located on the display board Refer to illustration 36 Connect RD A to pin TD A and connect this to terminal A on in the analyzer Connect pin2 TD B to pin 9 RD B and connect this to terminal B in the analyzer Connect earth or shield at one end only 3 Turn on the analyzer and the computer 4 Configure the analyzer for the desired baud rate Select SEr baud from the menu Baud rate
5. 9 10 69 10 81 10 93 11 04 1115 1127 1139 11 50 1153 11 61 1173 1185 1196 12 08 10 10 44 10 55 10 66 10 77 10 89 11 0 11 11 11 22 11 26 11 34 1145 1156 11 67 11 79 11 10 20 10 31 1042 10 52 10 64 10 75 10 6 10 96 1099 1108 1119 1130 1140 11 52 12 9 906 10 07 1017 10 28 10 39 10 50 1060 1071 10 74 1082 10 93 11 03 11 14 1124 13 974 984 9 95 10 05 10 16 1026 1037 1047 10 50 10 58 10 68 1079 10 89 11 00 14 952 962 972 9 83 9 93 10 03 1013 10 24 10 27 10 34 1044 10 54 1065 10 75 15 9 31 941 952 962 9 72 9 81 9 92 10 02 1005 1012 1022 1032 1042 10 52 16 9 11 9 21 9 31 941 9 51 9 60 9 70 9 80 9 83 9 90 10 00 1010 10 20 10 28 Page 52 www iccontrols com um 855 221 IC Controls C kPa 94 0 17 8 92 18 8 74 19 8 56 20 8 39 21 8 23 22 8 07 23 7 92 24 TT 25 7 63 26 7 49 27 7 36 28 723 29 7 10 30 6 98 31 6 87 32 6 75 33 6 64 34 6 53 35 6 42 36 6 32 37 6 22 38 6 12 39 6 02 40 5 93 41 5 83 42 5 74 43 5 64 44 5 55 um 855 221 95 0 9 02 8 83 8 66 8 48 8 32 8 15 8 00 7 85 7 71 7 57 7 44 7 31 7 06 6 94 6 83 6 71 6 60 6 49 6 39 6 28 6 18 6 09 5 99 5 90 5 80 5 71 5 61 96 0 9 12 8 92 8 75 8 57 8 41 8 24 8 09 7 94 7 80 7 65 7 52 7 38 7 26 7 13 7 02 6 90 6 79 6 67 6 57 6 46 6 36 6 25 6 16 6 06 5 97 5 87 5 78 5 68 97 0 921 9 02 8 84 8 66 8 50 8 33 8 18 8 02 7 88 7 13 7 60 7 46 7 34 7 21 7 09 6 98 6 86 6 75 6 64 6 53 6 43 6 33 6 23 6 13 6 03 5 94 5 84 5 75 www icco
6. Press slowly all the way down until the D O sensor cannot go any further into the flow cell the flow cell is designed with a sensor stop point 5 By hand turn the union nut until tight CAUTION Do not use a large wrench to turn the union nut The plastic could be broken or become deformed NOTE The union insertion fitting is not intended for use at high pressure Page 10 www iccontrols com um 855 221 1 Controls INSTALLATION Sensor Wiring TB200 The basic wiring scheme for all IC Controls D O sensors is shown in illustration 6 Refer to drawing OO 05940109 for wiring and component location This wiring scheme is intended for cable runs less than DO SHD 77 COM 3m 10 feet where electrical interference 15 A expected not to be severe OO v For sensor to analyzer distances greater than 9 m DO D O 30 feet preamp interface is suggested Refer to drawing D5950127 for interface wiring TB201 RED T The D O sensor at 1 ppb D O produces a current of less than 1 microamp All long low level D O sensor signals should be run through a dedicated T conduit Take care to route D O signal wiring away from AC power lines to minimize unwanted Illustration 6 Sensor wiring direct connect electrical interference When installing any instrument cable in conduit use caution to avoid scraping or cutting the cable insulation resultin
7. Wiring and NO NC Contact 34 Deviation Alarm 35 High or Low Alarm 35 FaultAlatm 35 Using Alarms for On Off Control 36 CONFIGURATION OF 37 SENSOR MAINTENANCE eee 39 Monthly Maintenance esee 39 Yearly 39 Chemical Cleaning Maintenance 39 Assembly of the Dissolved Oxygen Sensor 40 TROURBLBSHOOTING A 41 ELECTRONIC HARDWARE ALIGNMENT 42 DISPLAY PROMPTS nmmme tenet 45 GLOSSARY 5 cet ty sone nie Deere 47 Appendix Security sss 48 Appendix B Unit Converaion 51 Appendix C Saturated D O Values 52 Appendix D Default SettingS 54 Appendix E Parts Lier 55 Appendix Serial 56 DRAWINGS itte teg eee eee 58 05950127 800 Interface Wiring 58 05940109 Wiring amp Component Location 59 05980176 Display Component 60 04830022 Mounting Dimensions 61 04950053 2 inch Pipe Wall Mounting Kit 62 D4950054 Panel Mounting Kit 63 INDUSTRIAL PRODUCTS WARRANTY 64 INDEX i iecit eie Et ese Pe od ents add 65 Copyright 2006 IC Controls Ltd rights reserved Page 2 www iccontrols
8. out out1 rnG from the menu This frame shows a live update of the range number The rnG frame can only be selected from the menu if ArnG is set to YES 96 OUTPUT 1 Range Switching for D O Input 1o d N N Illustration 22 shows the effect of adding range switching to the 4 mA to 20 mA output The top graph shows the 118799 1 2 D O level coming down after a calibration but has virtually no resolution at the operating level The bottom graph shows the 4 mA to 20 mA staying within 10 to 100 of scale by automatically switching between ranges Only on the last range range 3 is the output of the 4 mA TIME to 20 mA allowed to go below 10 of scale SEG 96 OUTPUT 2 0 1 1 0 Illustration 22 Output with auto range Page 30 www iccontrols com um 855 221 1 Controls OUTPUT SIGNALS To achieve results similar to those in illustration 22 use the following settings OUTPUT 1 OUTPUT 2 in d o in ArnG ON OF on ON OF on unit IE 6 for ppm LO gt 1 HI 20 HI gt LO 0 ArnG YES Table 2 summarizes the results for these settings Range Number Output 1 full scale Output 1 scale ppm D O Output 2 mA Relay Contacts 1 100 20 4 00 0 0 2 10 2 0 8 00 A 0 B 1 3 1 0 0 2 12 00 A 1 B 0 Table 2 Example of range switching for D O input Remote Indication of Range Number Once output 1 is set to switch between ranges automati
9. psi X 6 895 1 atmosphere 1 01325 bar 1 atmosphere 760 mm Hg 760 Torr 5 1 atmosphere 14 70 psi latmosphere 101 3 kPa 1 bar 100000 Pascal um 855 221 www iccontrols com Page 51 Appendix C Saturated D O Values IC Controls 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 855 analyzer uses the table below to determine the efficiency of the cell The column for atmospheric pressure latmosphere 101 3KPa is in italics C kPa 940 95 0 96 0 97 0 98 0 990 100 0 101 0 101 3 102 0 103 0 104 0 105 0 106 0 0 1351 13 65 13 80 13 94 14 00 14 23 1437 14 52 1457 1467 14811 1495 1510 15 25 1 13 15 13 29 13 43 13 57 1371 13 85 13 09 1413 1417 1427 1441 1456 1470 14 84 2 12 79 12 03 13 06 13 20 13 34 13 48 13 61 13 75 13 79 13 88 1402 1416 14 30 1443 3 12 46 12 59 12 72 12 86 12 99 13 13 13 26 13 39 1343 13 52 13 66 1379 13 93 14 06 4 12 13 12 25 12 38 12 52 12 65 1277 12 90 13 04 13 08 13 17 13 29 1342 13 56 13 69 5 1182 1105 12 07 12 20 12 33 1245 12 58 12 71 12 74 12 83 12 96 13 09 1321 13 34 6 11 52 11 64 11 76 11 89 12 00 12 13 1225 12 38 12 42 12 50 12 62 1275 12 87 13 00 7 11 23 11 36 1148 11 60 11 72 11 84 11 96 12 08 12 11 12 20 12 32 1244 12 56 12 8 8 10 95 11 07 1119 11 30 1142 1154 11 66 11 77 11 81 11 89 12 01 1213 1225 12 37
10. sensor with a new membrane module see illustration 33 6 Fill the membrane module with fill solution and re assemble sensor as per illustration 34 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 Membrane flat for air bubble Module release GEES T me O ring y Tip Retainer Illustration 33 Membrane module assembly Illustration 34 Membrane cap installation 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 1 Galvanic D O sensors need to have a current drain at all times Assemble sensor wired to analyzer or if not possible short the coax center to shield 2 Unscrew the tip retainer exposing the lead coils and gold tip Inspect the electrode to ensure the coils are clean and the gold electrode is bright 3 Assemble a membrane module in the cap with the membrane facing down so that it covers the center hole in the cap 4 Flush the coils of the electrode with electrolyte solution then holding the electrode cap in an upright position with membrane module installed fill with electrol
11. 00 mA 2 Repeat step 1 for output 2 Tip Both outputs can be simultaneously calibrated if you set in for both inputs Adjusting Electronic Calibration 1 The outputs are isolated from the main circuit therefore measurements are made with common at the output 2 terminal TB304 2 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 VDC and 0 890 VDC Adjust 2 voltage with VR300 3 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 4 Measure output 2 zero at TP300 pin 7 of 0304 while output 2 is outputting 4 00 mA test point should read between 0 870 VDC and 0 890 VDC Adjust 2 zero voltage with VR302 5 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 6 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 855 221 www iccont
12. 855 221 1 Controls Appendix E Parts List Appendix E Parts List Part Number A9051019 A9051009 A9141007 A9201014 A9160024 A9160035 A3200070 A2500201 A2500255 A9200007 A2500053 A9120098 A2101513 A2500053 A2100049 A9120050 A2101514 A1100192 A1100193 A1100194 um 855 221 Description Drawing Number 855 ppm Dissolved Oxygen Analyzer Assembly 855 D O power PCB D5940109_R2 1 Assembly M55 micro display board D5980176_R2 0 Assembly M55 case complete D4830022_R1 0 16 wire interconnect cable two end 0 25 A microfuse 3 A microfuse used with option 51 timer Hardware set M55 front panel 4 each of standoff lock washer 4 40 nuts Panel mounting kit M55 series D4950054_R1 0 Pipe wall mounting kit M55 series D4950053_R1 1 Interconnect Cable to 800 Interface D O cable 6 conductor with shield per foot D5950127_R1 4 800 D O Interface Pipe Top Explosion Proof Type D O Preamp D5950127_R1 4 Terminal strip 6 CKT Explosion proof J box only 800 71 D O Interface Wall Mount Type D O Preamp D5950127_R2 1 Preamp holding bracket Terminal block 6 CKT Weatherproof wall mount J box only 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 www iccontrols com Page 55 Appendix F Serial Output IC Controls Appendix F Serial Output RS485
13. analyzer to be removed and the electrode tip placed in a beaker on the floor for cleaning or calibration Assume the safest place for the beaker is on the floor the service person stands on Horizontal separation between rows of analyzers should allow for electrode leads which need periodic replacement and the electrical conduit IC Controls recommends a minimum separation of 10 cm 4 in between rows columns As standard the 855 comes with four internal 0 43 cm 0 17 in holes for surface mounting screws spaced 18 8 cm 7 41 in wide and 8 8 cm 3 47 in high Case dimensions are 20 cm x 12 cm x 7 5 cm w h d or 7 87 in x 4 72 in x 2 75 in w h d as shown on drawing 04830022 Pipe mounting kit option 8 for 2 in pipe P N A2500255 is shown on drawing 04950053 It may also be used to surface mount the analyzer by removing the 2 inch U bolts and using the holes in the mounting plate for wall studs using customer supplied studs The mounting plate dimensions are 20 3 cm x 21 6 em 8 in x 8 5 in with elongated U bolt holes Panel mounting kit option 9 P N A2500201 is shown on drawing D4950054 It requires a customer supplied panel cut out 20 6 cm 8 1 in wide x 12 2 cm 4 8 in high with two 0 4 cm 0 15 in screw holes centered 22 6 cm 8 9 in apart and 6 1 cm 2 4 in below top of cutout The panel bezel dimensions are 24 1 cm x 15 9 cm 9 5 in x 6 25 in Wiring Power for the 855 analyzer is 115 230 x 10 sin
14. current state of each alarm and alarm contact In addition an alarm condition for an input will cause the sample display for that input to alternate with the alarm function either LO HI dEv or FLt This way the operator can quickly determine which alarm caused the alarm condition alarm or alarm B LED lighted and the type of alarm An LED that is blinking or on shows the alarm condition The status of the relay contact can also be determined at a glance as it is activated when the LED is on and deactivated while the LED is only blinking or off The alarm LED will blink while the alarm override is in MANUAL because this situation deactivates the alarm contacts Each alarm will simultaneously generate a caution OFF 9 no alarm candition number in the error menu Refer to Caution Messages for Alarms in the section entitled Error Messages fora description of each alarm caution The alarm cautions BLINK Ei Aessen gt will not cause the error LED to come on because the UU error LED only comes on if there are any errors To alarm condition view alarm caution s using the error menu select Err ON contact activated from the main menu then use the Up or Down arrow key to scroll through the list of errors and cautions if Illustration 24 Alarm status indication alarm LEDs any um 855 221 www iccontrols com Page 33 ALARM FUNCTIONS 1 Controls Alarm Override For normal alarm operation the alarms are
15. default are selected pressure is displayed in kPa When imperial units are selected psi are used Manual Pressure Compensation Atmospheric pressure is affected by altitude and weather conditions refer to illustration 19 as a guideline for adjusting pressure compensation for altitude Select d o Pr C from the menu Press SELECT to display a numeric value 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 16 a 94kPa ds 98 14 102 kPa 106 Dissolved Oxygen ppm o Yy lm alt E 0 10 20 30 40 50 Temperature Illustration 19 Effect of altitude on barometric pressure Page 24 www iccontrols com um 855 221 1 Controls D O CALIBRATION Calibration Procedure When executing the calibration procedure the analyzer will adjust the efficiency constant for the D O cell Before performing the calibration take the D O sensor and suspend it above water Select d o CAL from the menu The analyzer will show the D O reading using ppm units The display will be blinking to indicate that the analyzer is calibrating and testing for stability The calibration is automatic from here on As soon as the sensor reading
16. e y il R304 s PRES 2 o 5 amp 18303 9 TEMP 1 200 D20 2 e eo 21 HDSC30F 20 1 e 5 0 4 ch 200 201 gt COM 0 0 T 1 FOR DIRECT CONNECT USE J201 J203 2 FOR REMOTE USE J200 TEMPERATURE SENSOR 1000 OHM 1385 OHM 100 DEGREES J202 O DEGREES C C TB304 TB303 Xp I hum A 78L06AC TP30 g 12 34 K 5 51 Moltage Select e 230V 115V TB301 TB300 TB400 V802 onz 202 zoz rzo loy dote EF C 28 8 06 16 CONTROLS Orangeville Ontario Canada TITLE 855 WIRING amp COMPONENT LOCATION 989 05940109 scole 2 sheet D5940109 Page 59 www iccontrols com um 855 221 1 Controls ion lay Component Locati isp D DRAWINGS D5980176 9 ul pasn NOILVOO 1 LN3NOdNWOO AV IdSId SSW STOULNOD 86 2 243 Up AQ 6 NId CH o 91514 49 E 55 olo R68 SC 8S02E06W R67 O r d Hd t 0d dW31 9 0d
17. has stabilized sufficiently the display will stop flashing and the new sensor efficiency constant will be calculated The calibration setting will be based on the temperature used for temperature compensation and the pressure used for pressure compensation proper ppm D O reading is obtained from an internal table See Appendix C for a table of values used by the analyzer As soon as the display stops flashing the calibration will be completed It is possible to 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 D O reading Also the calibration may be redone or started over at any time Press CANCEL to display the frame then press SELECT to restart the calibration 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 has been retained Press any key to acknowledge the error message Take corrective action and redo the calibration Consult the error table in the Error Messages section for details Press any key to resume normal operation after an error message has appeared When the reading stops blinking the calibration has been completed The reading will be displayed using the new calibration value After a successful calibration select d o EFF from the menu to inspect the new c
18. in d o unit 12 Set preference for input damping if known default is 5 seconds 13 Install password security if desired 14 The unit is now ready for field installation um 855 221 www iccontrols com Page 11 INSTALLATION IC Controls 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 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
19. lav 1 GRND REF RED REF C Z RED PREAMP car yy v V V 0 ON CENTRE 3 3 3 REF OR SHIELD ON REF 516 4 4 4 DD DUTSIDE TINNED ENDS CBRN M 616 o LU 66152 79 SHLD A ei ca SERE REF DWG 05940094444 A FOR DIRECT CONNECT USE J201 J203 NOTES FOR REMOTE 800 I F USE J200 J202 FOR 800 INTERFACE BNC AND COAX CENTRE ARE Dia SHIELD IS REFERENCE D 0 date J CONTROLS A ANALYZER SHIPPED WITH 1100 OHM DUMMY T C REMOVE AND SAVE FOR FUTURE UsE dr 28 8 06 Orangeville Ontario Canada A CUSTOMER SUPPLIED RECOMMENDED CABLE BELDEN 9536 chk TITLE WIRING AVAILABLE FROM IC CONTROLS AS PN 49200007 2 7 6 99 800 INTERFACE AA TC IS 1000 OHM RTD 2500053 MODEL 855 ANALYZER A scole DRAWINGS DRAWINGS D5950127 Page 58 DRAWINGS 1 Controls ion amp Component Locat iring Wi HEADER CONNECTOR M9520045 0400 L1 MODEL 855 MAIN BOARD REV 2 0 TP 400 IC CONTROLS Xa408D X403D 401 8314 0302 8 hos DO F404 9 RE R300 TP 402 5VC 9 EE vole R301 6 VR300 e P403 H Se R e 9 ALARM A i C300 2 S sic 0 P 2 e R302 4 SIG D P 1 E U404 R306 NE
20. main menu again Change the displayed value to 0001 which is the level 1 password Press ENTER 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 set to 0000 again and password security is disabled Page 50 www iccontrols com um 855 221 IC Controls Appendix B Unit Conversion Appendix B Unit Conversion Relation of ppb ppm mg L saturation for D O 1000 ppb 1 ppm 1 ppb 0 001 ppm 1 ppm is approximately 1 mg L The 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 CO cp me32 gt F 32 F 2x C 32 Pressure Units kPa 6 895 kPa
21. manufacturer Hysteresis the reading at which an alarm is turned on is 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 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 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 settings are stored in RAM TC Temperature compensator Temperature compensation correction for the influence of temperature
22. or below If the prompt at the top the bottom 15 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 t SELECT MANUAL ENTER SAMPLE AUTO CANCEL Illustration 9 Analyzer keypad AUTO and MANUAL Keys The AUTO and MANUAL keys are used to implement the alarm override feature Refer to the Alarm Override heading in the Alarm Functions section for a description of these key functions Standby Mode In standby 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 The analyzer will not resume normal operation until the analyzer is taken out of standby While in standby the entire menu and all YES of the settings are accessible to the operator as before None of StbY the settings will take effect until the analyzer is returned to normal operation The standby feature is protected by security level 2 tanay meny Input Damping The dissolved oxygen and temperature measurements can be damped to provide the user with a means to alleviate rapidly varying or noisy signals The available damping range is 3 s to 99 5 with 0 s there would be no damping and each reading the analyzer made would be used to directly update the display and 4 mA to 20 mA
23. page 3 the areas shaded in dark gray indicate program settings which can be changed by the user Menu areas shaded in light gray are view only menus Page 14 www iccontrols com um 855 221 1 Controls EASY MENU EASY MENU The layout of the program is shown in the 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 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 display Home Base Press Sample home base From anywhere in the menu the SAMPLE key can be used to return to displaying dissolved oxygen The program will safely abort whatever it was doing at the time and return to displaying the SAMPLE dissolved oxygen reading The dissolved oxygen display is the default sample display for the analyzer The analyzer s inputs dissolved oxygen and temperature are arranged underneath each other at the left hand side of the menu 4 Use the Up or Down arrow key to display each of the readings in turn ES b d 2 7 c 8 250 Illustration 7 Home base Main Menu Display Features 1 The analyzer has built in timer which returns the program to displaying dissolved oxygen if no key is p
24. 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 instruction 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 conf
25. said to operate in auto mode If the operator wishes to intervene and switch off the alarm contacts temporarily while attending to a problem the alarms can be switched to manual override using the MANUAL key In AUTO mode the green AUTO LED is on and the analyzer alarms will activate and deactivate the relay contact as programmed Press the MANUAL key to temporarily deactivate the alarm contacts In MANUAL mode the green AUTO LED will m alarms or blink The relay contacts are deactivated but the analyzer in STANDBY mode alarm LEDs continue to indicate alarm condition s Press the AUTO key to return to AUTO mode BLINK Cl MANUAL made immediately and reactivate the relays If no key is pressed for 15 minutes the 15 minute timeout will ALTO mode return the alarms to AUTO mode Illustration 25 Alarm override status AUTO LED Delayed Activation Alarm relay activation by default is immediate upon alarm condition Alarm relay activation may be delayed Activation delay gives the operator a chance to correct alarm situations before the relay contacts activate or can eliminate alarms based on temporary or spurious changes in the process The delay time is programmable by the operator To change view the delay time select ALAY from the alarm menu The default value of 0 seconds is for immediate contact activation The delay time can be set from O s to 9 999 s Unit Selection The alarm module does no
26. 39 9 21 9 03 8 87 8 70 8 55 8 39 8 25 8 10 7 79 7 84 771 7 58 7 46 7 34 7 22 7 11 7 00 6 89 6 78 6 68 6 57 6 47 6 37 6 27 10 08 9 87 9 67 9 47 9 30 9 12 8 96 8 79 8 64 8 48 8 33 8 18 8 05 7 91 7 78 7 65 7 53 7 41 7 30 7 18 7 07 6 95 6 85 6 74 6 64 6 53 6 43 6 33 53 Appendix D Default Settings IC Controls 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 20 00 100 0 ON OFF switch ON ON Units 1E 6 ppm Automatic range indication OFF Alarms Alarm A Alarm B Input for alarm dissolved oxygen dissolved oxygen Alarm function High Low ON OFF switch OFF OFF Set point 10 0 1 0 Differential 0 05 0 05 Delayed activation 08 08 Units 1E 6 ppm 1E 6 ppm Global units Metric units D O concentration in ppm parts per million temperature in degrees Celsius pressure in kPa Alarm contacts Configured normally open Security Not enabled Temperature compensation Automatic TC using temperature input Pressure compensation Manual pressure compensation to 101 3 kPa 14 69 psi Input damping Signal damping for Dissolved oxygen 5 seconds Temperature 5 seconds Page 54 www iccontrols com um
27. 47 Normally open 37 47 Output channels 29 Output hold 25 Password 48pp Pressure units 24 51 Pressure compensation 24 54 Process control 36 Range indication alarm contacts 31 output 2 32 Range switching automatic 30 IC Controls enabling 30 output signals 30 range indication 31 Re initializing settings 37 Real time clock 19 Relays 44 SAMPLE key 15 Security access levels 48 access level 48 disabling 49 enabling 48 password 38 48 password 1 48 password 2 48 time out 15 Simulated current output 29 Specifications 7 8 Standby mode 16 Start up diagnostics 13 error checking 13 procedure 13 settings 14 Temperature current output 29 error messages 28 input calibration 42 units 19 51 Temperature compensation 23 47 54 Timer 15 minute time out 15 15 minute timeout 34 security time out 15 Troubleshooting 41 Units conversion 51 DO 51 display 19 output 32 pressure 24 51 temperature 19 51 Wiring 9 Zero oxygen standard 22 Page 66 www iccontrols com um 855 221
28. 9 Current output 29 calibration 43 default settings 54 displaying 43 enabling auto ranging 30 hysteresis 30 um 855 221 www iccontrols com INDEX output hold 25 range indication 31 reversing 29 settings 29 simulating 29 span 29 standby mode 16 testing relay outputs 44 units 32 0 calibration 22 25 detection circuit 42 display units 19 error messages 27 measurement 21 output hold 25 output signals 29 pressure compensation 52 temperature compensation 22 troubleshooting 41 units 51 zero oxygen standard 22 Damping of inputs 16 Default settings 54 Delayed alarm activation 34 Diagnostics memory test 13 startup procedure 13 Display prompts 45p Edit Mode change settings 17 example 17 key functions 18 numeric values 17 Electrode assembly 40 cleaning 39 maintenance 39 troubleshooting 41 Electronic alignment 42 Error messages 26 sign 26 sign 26 acknowledging 26 alarm 28 65 INDEX clearing 26 D O 27 temperature 28 Fahrenheit 19 Fault alarm 35 Home base 15 Hysteresis 35 47 Imperial units 19 Input on off switch 37 Input damping 16 Installation 9p Keypad arrow keys 16 AUTO key 16 CANCEL key 18 DOWN key 17 ENTER key 17 MANUAL key 16 SELECT key 18 UP key 17 LED 26 33 47 MANUAL key 16 34 Manual pressure compensation 24 Manual temperature compensation 23 Membrane selection 38 Menu edit settings 17 home base 15 Menu Layout 3 Metric units 19 Normally closed 37
29. D O reading and function normally program settings calibration settings and default values will have been retained by the analyzer as the memory has battery backup Start up Procedure 1 Install the model 855 analyzer according to the instructions in Installation section Verify power supply has been wired for proper voltage and instrument is suitably grounded 2 Turn on flow at sample inlet or insert sensor into sample 3 Power up the 855 analyzer 4 The startup procedure will begin by alternately flashing tESt and while performing the memory tests 5 The analyzer will display in sequence the analyzer model number in this case 855 and the program version number eg 2 20 6 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 7 If the analyzer passes all the tests then the hardware is functioning properly and the analyzer will proceed to display dissolved oxygen 8 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 scale or is not connected properly If the error LED remains lighted then go to the error display section by selecting Err from the main menu to see what errors have been detected by the analyze
30. 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 Editing a Numeric Value Numeric values such as an alarm set point are adjusted by going into edit mode and then adjusting each digit until the new value is displayed Use and keys to move between digits and use the 1 and keys to adjust each digit When ENTER is pressed to go into edit mode two things will happen First the last digit will start blinking to show that this digit can be changed Second any blank spaces will change to zeros and a plus or minus sign will appear Now each digit can be accessed Change between positive and negative numbers by switching between plus and minus sign using the 1 or key when the plus minus segment is blinking Press ENTER again to leave edit mode Before the new value is changed the analyzer will check the new value to make sure that it is within range If the new value is lower than the lowest value allowed for that frame then the analyzer will use the lowest allowable value instead of the new value entered Likewise if the new value entered is higher than allowable then the highest allowable value is used instead The analyzer will display whatever value it has stored in memory Example Change the low output setting from 0 ppm to 2 ppm From the menu select out LO The current set point e g 0 00 will be displayed Press ENTER to s
31. Down arrow keys Errors and cautions cannot be removed from this list directly each error or caution will be removed automatically when appropriate eg errors associated with improper calibration will be cleared after a successful calibration Error messages are numbered Errors are identified as En e where n is the input number and e is the error number For example E1 1 is error 1 for the dissolved oxygen input Input Source Input Number for Error and Caution Messages D O 1 2 Off scale errors for dissolved oxygen not numbered and are identified as Err and Err depending on Alarm A T whether the input is at the top or the bottom of the scale Alarm B 8 The off scale error is displayed instead of the sample reading and does not show up in the error menu with the Table 1 Input numbers numbered error messages if any Error message indicators can be annoying when one has already been made aware of them A method has been provided to turn off the error LED and the fault alarm for a particular error message Refer to the heading Acknowledging an Error Message for the exact procedure The error LED will remain on as long as there is an unacknowledged error or caution 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 If no electrode or sensor is attached to an input it may be most convenient to turn off the input For example
32. EL 2 TWO S L CUTOUT 810W X 4 80H INCH CREW HOLES APROX 0 15 DIA AT SIDES 2 40 FROM TOP OF CUTOUT CENTERED 8 90 INCH APART um 855 221 3 MOUNTING SCREWS 6 32 20 8750 Tp CONTROLS Orangeville Ontario Canada TITLE PANEL MOUNTING KIT 655 455 ETC BEZEL pew DRAWINGS www iccontrols com code Zug 4950054 RE V Page 63 INDUSTRIAL PRODUCTS WARRANTY IC Controls 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 and 45 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
33. LSd Normally closed alarm contact CONF Configuration of program menu Cont Continue internal data log when buffer full cur Signal output in mA or current dA Damping of input signal dAtE Date Real time clock setting for day of the month dAY Day day of the week real time clock setting dEv Deviation alarm dFLt Default diFF Differential dLAY Alarm activation delay d o Dissolved oxygen input do Do press ENTER to execute the reset clear action donE Done reset clear action has been taken EFF D O cell efficiency constant adjusted via calibration Err Error or warning number Er 94 RAM checksum failed Some settings may be lost F Temperature in degrees Fahrenheit use imperial units FASt Fast response membrane FLt Fault alarm FrEq Frequency of internal data log updates in seconds FULL Full What to do when internal data log is full continue or stop HI High alarm high limit 20 mA for 4 mA to 20 mA output window Hold Output hold during calibration hour Hour Real time clock setting hund Hundredth of a second Real time clock display Internal data log in Input OR Minute real time clock setting kPa kilopascal kPa units for pressure LO Low alarm low limit 4 mA for 4 mA to 20 mA output window NodE Node number for IC Net communications um 855 221 www iccontrols com Page 45 DISPLAY PROMPTS 1 Controls NO NC OFF OFFS on ON OF onth O
34. MEASUREMENT 855 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 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 Galvanic Measuring Cell The 855 dissolved oxygen measuring sensor is an electrochemical cell similar to a battery that produces a current when oxygen is present By using carefully selected electrodes in contact with an appropriate electrolyte a chemical reaction occurs that uses electrons gained from oxygen molecules to produce a galvanic current directly proportional to the concentration of oxygen present Illustration shows how such an electrode system works in a simple laboratory test Illustration 15 shows how these scientific principles can be implemented into a working dissolved oxygen electrode 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 855 uses a
35. O 5 LO 5 Number HI 5 HI 5 HI 1 HI 0 the range number in ArnG ON OF on OUT2 OFF 400 4 00 400 4 00 Also set the HI and LO parameters to indicate which values represent 4 00 mA and 20 00 mA 200 Table 3 shows the relationship between the range 2 10 40 8 00 16 00 16 80 number and some of the possible LO HI settings 3 13 60 12 00 12 00 13 60 Table 3 Using output 2 for range Unit Selection The output module will be using different units for the high and low settings depending on the input selected Select unit from the output menu to display the units in use for this output The temperature input will use different units depending on whether metric or imperial units are selected Celsius units are used for metric and Fahrenheit units are used for imperial units The choice between metric or imperial units is made in the configuration menu Refer to Configuration of Program section for further details The D O input allows the user to select between ppm ppb and saturation units Edit the unit setting to choose the desired units for the HI and LO settings Page 32 www iccontrols com um 855 221 1 Controls ALARM FUNCTIONS ALARM FUNCTIONS em Two alarms alarm A and alarm B a standard PI 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 oth
36. PEN out out 1 out 2 PAS 1 PAS 2 PASS PPb Pr C PSI rnG rtc rugg SAt SEC SEr SEt StAr StbY Std StOP t c unit YEAr Page 46 Normally open Normally closed Off Offset On On off switch Month Real time clock setting Normally open alarm contact Output menu First 4 mA to 20 mA analog output channel Second 4 mA to 20 mA analog output channel Set password 1 operator access Set password 2 complete access Enter password to change access level Parts per billion ppb D O unit selection Pressure compensation setting Pounds per square inch psi units for pressure Analyzer dissolved oxygen input range selection Range number Real time clock Rugged membrane Percent saturation D O unit selection Seconds Real time clock setting Serial communications menu Set point Select manual compensation Start internal data log Standby mode for analyzer Standard response membrane Stop internal data log Temperature compensation setting Display setting of units Year Real time clock setting www iccontrols com um 855 221 1 Controls GLOSSARY 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
37. USER MANUAL MODEL 855 ppm DISSOLVED OXYGEN ANALYZER um 855 221 E SENT ANALYZER jJ sss INTELLIGENT ANAS 52 e ppm 0 0 1 CONTROLS CONTENTS CONTENTS um 855 221 aret RERO ERE rri 2 855 MENUS 3 INTRODUCTION eese eene 6 Feat te8 ciet lee ee TRE 6 Specifications ine pese noon eg 7 INSTALEATION eet 9 Analyzer 9 hope E 9 Sensor 10 Sensor Wiring eei 11 Instrument Shop Test Startup 11 STARTUP iege 13 Start up Procedure 13 Start up 14 Changing 14 EASY LE UNE 15 Remembers Where You 15 Home Base Press Sample 15 Display FeatureS 15 Keys inerte ede ues 16 AUTO and MANUAL 16 Standby 16 Input D mpting nene 16 EDIT MODE 17 Editing by Selecting Setting 17 Editing a Numeric sues 17 Summary of Key Functions in Edit Mode 18 Metric or Imperial UnitS eee eee eee eneeeee 19 Real Time 19 Display Be GE 19 855 D O 21 Introduction cocer ette 21 Galvanic Measuring 21 D O
38. alibration value This value is used internally to determine the analyzer gain A good functioning sensor will have an efficiency greater than 5096 When leaving the calibration display the analyzer will again display D O using the units used before doing the calibration If ppb was being used then the analyzer will again display the D O reading as ppb when you press SAMPLE or leave the calibration display using the arrow keys Output Hold The 855 allows the user to hold the output for dissolved oxygen Output hold affects both 4 mA to 20 mA outputs and alarms which monitor the D O 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 their existing on off condition The output hold remains in effect until the operator changes the d o 4 setting to no or until no key has been pressed for 15 minutes The 15 minute timeout ensures that output hold for D O will not remain in effect for longer than 15 minutes if the analyzer is left unattended um 855 221 www iccontrols com Page 25 ERROR MESSAGES 1 Controls ERROR MESSAGES Detected errors and or cautions are displayed by the analyzer From the main menu select Err If there are no error or caution messages NONE will be displayed otherwise scroll through the error list using the Up and
39. by the Federal Communications Commission helpful How to Identify and Resolve Radio TV Interference Problems This booklet is available from 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 Page 12 www iccontrols com um 855 221 1 Controls STARTUP STARTUP If the analyzer is new and has not been installed then follow the procedures described in Installation Electronic Hardware Alignment and Configuration of Program before mounting Mounting and wiring procedures for new installations vary with equipment options refer to drawing section for instructions If the analyzer has been previously installed all that is required is to attach the sensor to the analyzer and then turn on the power The analyzer will go through its automatic startup procedure any time power to the analyzer is lost for more than a few seconds The startup procedure will initialize the analyzer program perform error checks and then proceeds to display the
40. cally we still need to be able to indicate to a recorder or a digital control system which range number output 1 is on This task can be accomplished either by using the alarm contacts or by using the second 4 mA to 20 mA output The analyzer will also allow both methods to be used simultaneously Using the Alarm Contacts The alarm contact method uses the two alarm contacts to distinguish between ranges With two contacts there are four possible combinations The on off combinations for the A and B contacts are shown in table 2 Set up the alarm contacts for range indication by selecting CONF AL ALA or Al b FUNC from the menu and editing the setting to show mG While the alarm contacts are being used for remote range indication of output 1 the alarms will continue to function as normal i e LED indication and alarm type display in SAMPLE frame will continue It is not possible to use an alarm contact for alarm indication and range indication at the same time Also note that while the alarm contacts are being used for range indication the normally open normally closed configuration will be observed Consult Configuration of Program section for further details um 855 221 www iccontrols com Page 31 OUTPUT SIGNALS 1 Controls Using the Second 4 mA to 20 mA Output A more versatile method for indicating the range number for output 1 remotely is to use output 2 The following settings for output 2 will transmit Range LO 0 LO 1 L
41. cation port Its microprocessor intelligence 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 855 is one of a series of 115 230 VAC process analyzers supplied in a corrosion resistant IP65 NEMA 4X water and dustite case These analyzers are also available 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 855 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 Stores 12 calibration records Stores alarms caution and error messages Stores running 1 000 minute dissolved oxygen trend Two programmable 4 mA to 20 mA outputs Two programmable alarms 10 Serial digital output and for remote operation 11 Optional auto chemical cleaning 12 Two level securit
42. com um 855 221 IC Controls 855 MENUS 855 MENUS CALIBRATE C F kPa PSI main menu effciency 15 min timeout if no key pressed saturation See list of error and caution messages for conductivity display iome tase See Internal Data Log Menu list of available SAMPLE inputs available units depend on type of input selected unit sat 2 9 3 c turn automatic range switching on off range number for automatic range switching See Alarm Menu See Serial Menu See Configuration Menu Accessible only when function is activated Illustration 1 Menu overview um 855 221 ww iccontrols com Page 3 855 MENUS z E a g z o 5 d a 000 0000 Illustration 2 Configuration menu Page 4 selectable only if security enabled 1 Controls alarm indication output range number indication Input damping sec Membrane Compensation Factor NONE No membrane compensation FASt Fast response membrane Std Standard membrane no dash option Ruggedized membrane D O Input VDC input damping sec CALIBRATE Temp Offset C F Temp metric or imperial unit selection setpoint list of available inputs ppb available units
43. depend on type m da of input selected sat deviation Context sensitive menu item Accessible only when SUE function is activated alarm activation delay sec Illustration 3 Alarm menu WWW Accontrols com um 855 221 1 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 internal data log menu while logging input being logged d o 60 frequency of log update in seconds continue logging overwriting oldest data stop logging when buffer full number of data points currently in buffer Simultaneous serial ASCII output of all inputs No ASCII serial output Illustration 4 Internal data log menu um 855 221 WW iccontrols com 855 MENUS FF BH 1200 2400 4800 9600 29 Illustration 5 Serial menu Page 5 INTRODUCTION 1 Controls INTRODUCTION The model 855 is IC Controls industrial quality remote operational dissolved oxygen analyzer designed to give maximum flexibility reliability and ease of use The model 855 is shipped from the factory calibrated at 0 ppm to 20 ppm and 4 mA to 20 mA and should not require recalibration It has two isolated 4 mA to 20 mA outputs two 10 A SPDT relays plus a serial communi
44. e entered by selecting PASS directly from the main menu ENTERING A PASSWORD Table 4 Access levels 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 35 to determine how the program validates a password Master access to all settings Usage configuration of analyzer installation management Passwords can 2 be changed 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 d
45. e level 2 access to the program Select CONF PAS 2 from the menu then press ENTER when the program displays 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 55 55 55 55 LEVEL 0 LEVEL 0 LEVEL 1 LEVEL VIEW ONLY VIEW ONLY OPERATOR COMPLETE DISPLAY DISPLAY DISPLAY DISPLAY Illustration 35 Password validation um 855 221 www iccontrols com Page 49 Appendix Security IC Controls PASSWORD EXAMPLE 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 0 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
46. eamplifier Security Alarms Controls Outputs Communication Page 8 IC Controls Operational Data CHARACTERISTIC Dissolved Oxygen 2 reading or 0 02 mg L whichever is greater Temperature 0 1 Dissolved Oxygen 1 digit or 0 01 mg L whichever is greater Temperature 0 1 90 within 5 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 Require model 800 interface for sensor separation greater than 100 ft 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 alarm relays SPDT Form C rated 10 A 115 V 5 A 230 V Single PID optional standard pump pulser or time proportional Two continuous assignable programmable 4 mA to 20 mA or mA to 20 mA outputs isolated max load 600 Q Convertible from 1 VDC to 5 VDC or 0 VDC to 5 VDC Via 5485 bidirectional serial data port require IC Net 2000 software 5 855 1 www iccontrols com um 855 221 1 Controls INSTALLATION INSTALLATION Analyzer Mounting The dissolved oxygen sensor is typically supplied with at least a 1 5 meter 5 feet lead as standard The 855 analyzer should be kept within the sensor lead length and mounted on a wall ideally at eye level Position the analyzer to allow the sensor still connected to the
47. elect edit mode The display will change to 00 00 and the last digit will start blinking Press twice to move left two digits The third digit from the end will now be blinking Press the 1 key to change 40 to 2 Press ENTER again and the display will change from 400 00 to 02 00 indicating that the new value has been stored in memory The 4 mA to 20 mA low set point has now been changed from 0 00 ppm to 2 00 ppm Press lt key to display LO out etc um 855 221 www iccontrols com Page 17 EDIT 1 Controls Summary of Key Functions in Edit Mode ENTER SELECT 4 _ CANCEL 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 0 is displayed then the digit will loop around to show 9 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 Numeric values move left one digit If blinking is at the sign then blinking goes to last character Settings restore the initial value if it was changed Otherwise leaves edit mode
48. enu set to 1E 6 to display ppm dissolved oxygen Page 27 ERROR MESSAGES Error Messages for Temperature Error E2 1 E2 2 Description Causes Temperature reading off Temperature is lower than 5 C scale less than 5 Temperature reading off Temperature compensator TC not scale greater than 105 Electronic calibration needed attached Temperature is higher than 105 Electronic calibration needed Caution Messages for Alarms Caution Number Page 28 7 6 CA7 7 CA7 8 CA7 9 CA8 6 CA8 7 8 8 8 9 Description Alarm A High alarm Alarm A Low alarm Alarm A Deviation alarm Alarm A Fault alarm Alarm B High alarm Alarm B Low alarm Alarm B Deviation alarm Alarm B Fault alarm www iccontrols com IC Controls Solutions Verify process and sensor location Follow procedure in Hardware Alignment section Attach temperature compensator Turn off temperature input Follow Input On Off Switch procedure in Software Configuration section 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 um 855 221 1 Controls OUTPUT SIGNALS 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 o
49. er Li Either alarm can monitor the dissolved oxygen ME or the temperature input i E available units Each alarm features an adjustable set point user mn selectable alarm type adjustable differential sat 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 ej 0 Sak Context sensitive menu 9 999 ppm or Oppb and 9 999 ppb for the 5 stern een dissolved oxygen input or 5 and 105 for y alarm activation delay sec the temperature input Illustration 23 Alarm menu Use of Alarm Contacts By default the alarm contacts will be used to indicate alarm conditions If there is an alarm condition then it will be indicated using both the LED and the alarm contact This function of the relay contacts can be selected by setting CONF or Al b FUNC to AL The alarm 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 alarm contact This usage of the alarm contacts is selected by setting CONF AL Al b FUNC to Remote range indication is described in the Output Signals section Alarm Indication The A and B LEDs on the front panel show the
50. erial cable 2 Bring the RS485 cable into the analyzer through the center hole Wire the RS485 cable into the terminal block located on the display board Connect the black to terminal B red to terminal A and the clear to EARTH 3 Connect the converter to a free COM port on your laptop computer 4 Insert the cable s RJ11 connector into the converter Making a Custom Cable Illustration 38 Wiring RS485 cable A cable has been provided with the adapter If this cable is not long enough use the following information to create your own cable Connect shield at one end only Converter Signal RJ11 Pin Number Ve Data 2 wm A RED Data B 5 CONNECTOR EARTH SHIELD O 51 gnal Ground 4 sd WITH RS 485 EARTH Wes Illustration 39 Wiring RJ11 Ens LET Plug Ered 11 Conductor um 855 221 www iccontrols com Page 57 1 Controls iring SENSOR REMOTE INSTRUMENT um 855 221 www iccontrols com 800 Interface W IF SENSOR DOES NOT HAVE AUTO TC SELECT MANUAL AND SET VALUE USING MICROPROCESSOR FOR 800 INTERFACE ANALYZER MUST HAVE J200 J202 INSTALLED Zug 05950127 IREV sheet of 1 4 INPUT 00 PUT D D SENSOR CABLE ENDS D I D O D D av 1 1
51. g exposure of the cable s internal shield wire will greatly increase the chances of system malfunction at any future time Avoid excessive twisting or coiling of all instrument cable to minimize possibilities for broken wire Make sure all connections are clean and tight Instrument Shop Test Startup 1 Apply 115 230 VAC power to the analyzer 2 Hook up the sensor and remove orange protective cap Keep for future use 3 Rinse the sensor in deionized water and blot tip dry beaker full with tap water and place sensor 1 inch above water surface 4 855 should come up reading around 8 ppm to 9 ppm depending on the temperature and barometric pressure Refer to Appendix C for saturated D O values at various temperatures and pressures 5 Perform a calibration Allow 30 minutes warm up time for electronics to stabilize 6 Check the calculated efficiency sensor efficiency should be greater than 50 7 To check for general performance place the sensor in zero D O standard P N A1100193 The display should read near 0 ppm within a few minutes 8 Before placing the analyzer into operation verify settings to ensure that they coincide with the intended setup Refer to Appendix D Default Settings section 9 For the 4 mA to 20 mA output set high limit and low limit 10 Set preference for temperature units as or F in CONF unit 11 Set preference for dissolved oxygen units as ppb ppm or percent saturation
52. galvanic cell separated from the sample by an oxygen permeable PTFE teflon membrane The cell has a gold cathode in close contact with the membrane where oxygen gains electrons is reduced to become hydroxyl ions OH and a lead Pb anode that produces a fixed potential regardless of oxygen concentration to complete the circuit The chemical reactions within the cell are At the cathode O 2H O 4e 40H At the anode 2 Pb 2Pb 4e Overall 2 2 Pb 2Pb 0H Voltmeter Gold Cathode 02 2 20 46 gt d Cathode Tefion Membrane _ Lead Anode TJ Pb gt PB2 2 r l Lead Anode P Fill Solution Electrolyte 2 D Sensor Body Solution Insulator Illustration 15 Galvanic dissolved oxygen sensor Illustration 14 Basic galvanic cell um 855 221 www iccontrols com Page 21 DO CALIBRATION 1 Controls DO CALIBRATION Saturated Air Calibration Technique 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 ox
53. gle phase 50 60 Hz and 0 25 A Connections are made at TB400 inside the instrument enclosure refer to drawing 05940109 The microprocessor requires a suitable ground to ensure stable operation A power line with the third wire connected to earth ground should be adequate however a local earth rod may prove more fitting There are three 2 0 cm 0 875 in holes for 0 5 inch conduit in the bottom of the enclosure IC Controls recommends that AC be brought in through the right hand entrance for power and alarms 4 mA to 20 mA and digital low voltage wiring be brought in through the center entrance and sensor leads be passed through the left hand entrance Conduit should be flexible watertight and sealed using a gasket to maintain environmental integrity within the enclosure Connect the two relay alarm contacts Alarm A contact TB300 Alarm B contact TB301 Connect the two isolated 4 mA to 20 mA outputs Output 1 contact TB303 Output 2 contact TB304 um 855 221 www iccontrols com Page 9 INSTALLATION 1 Controls Sensor Mounting It is recommended that the sensor be located as near as possible to the D O analyzer to minimize any effects of ambient electrical noise interference Flow and insertion sensors can be in any orientation but should be mounted tip down at an angle anywhere from 15 degrees above horizontal to vertical 15 degrees above horizontal is best because air bubbles will rise to the top and debris will sink both bypas
54. hich is 1 of full scale For dissolved oxygen this means that with full scale setting of 20 ppm the output will automatically switch down to range 3 which represents 0 ppm to 0 2 ppm 0 to Illustration 21 Output without range 200 ppb While automatic range switching is most practical for the D O input the concept will work for the temperature input as well 96 OUTPUT hysteresis is built into the output logic to avoid having the output switch between ranges too frequently thereby painting the chart recorder The output will stay on the current range if the output level is between 9 5 and 10096 of the current scale The output will not switch downscale to the next highest range number until the output reaches 9 5 of the current scale The output will switch upscale again when the output reaches 10046 of the current scale Enabling Automatic Range Switching Only output 1 has automatic range switching available From the menu select out out1 ArnG then edit the setting to show YES A common setting for LO is 0 which is the lowest possible value for the D O input Set the HI value to the full scale value for range 1 The unit selection for D O should be 1E 6 which represents ppm 2 e TYPICAL 4 20 mA OUTPUT With automatic range switching for output 1 enabled one WITH AUTOMATIC RANGE SWITCHING can observe at the analyzer which range output 1 is on by selecting
55. 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 Refer to the Configuration of Program section Acknowledging an Error Message 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 26 www iccontrols com um 855 221 1 Controls Error Messages Dissolved Oxygen Error 1 0 Description Reading off scale Display shows Err Electrode has not stabilized after 5 minutes of calibration E1 2 Electrode efficiency would be less than 2046 Previous setting retained E1 3 Electrode efficiency would be greater than Causes The internal A D converter is at the top of the scale The analyzer cannot measure higher dissolved oxygen va
56. isplay to the desired password for level 2 You can press SAMPLE at any time to safely cancel password entry 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 Page 48 www iccontrols com um 855 221 IC Controls Appendix Security 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 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 password you must first hav
57. issolved oxygen The unit setting allows the analyzer to display the dissolved oxygen reading using either ppm parts per million ppb parts per billion or percent saturation units parts per million parts per billion saturation Illustration 12 Display units menu The terms parts per million and parts per billion are not part of the International System of Units SD These units are in common usage in many parts of the world In the United States the translation to SI units for concentrations in liquid is as follows parts per thousand 1 ppt 1 g L parts per million 1 ppm 1mg L parts per billion 1 ppb 1 ug L A problem with the use of these units is that their meaning is language dependent In the U S a billion refers to a thousand million whereas in Britain a billion is typically understood to mean a million million For scientific purposes the meaning of a billion is ambiguous Additionally the term ppt could equally well refer to parts per thousand or parts per trillion Add the language ambiguity to the thousand vs trillion ambiguity and ppt can mean any of parts per thousand parts per 10 or parts per 105 This manual uses the term billion to mean a thousand million so that ppb is denotes parts per 10 um 855 221 www iccontrols com Page 19 EDIT 1 Controls The percent saturation unit displayable by the analyzer displays the calculated percent of maximum concentration of diss
58. ltimeter Fluke 8051A or equivalent to read VDC Use the D O sensor connection TB200 terminal 4 and sensor TB200 terminal 2 as common Refer to drawing 105940109 for component location Set the D O efficiency constant to 10046 by selecting d o EFF from the menu and editing the value to read 100 096 Adjust the electronic standardize with blue trimpot VR200 located mid board above the D O terminal block refer to drawing D5940109 Adjust the trimpot to a reading of 2 575 VDC at TP200 while inputing 0 180 VDC through a 200K 1 resistor Under these conditions the 0 180 VDC input simulates 0 9 microamp sensor signal for 8 24 ppm D O at approximately 100 efficiency atmospheric pressure and 25 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 The temperature input of the 855 microprocessor analyzer requires 1000 TC in the sensor Adjusting Electronic Calibration 1 5 6 dis 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 Set up a precision multimeter Fluke 8051A or equivalent to read VDC Use the TEMP sensor connection TB201 terminal 2 as common Place a 1000 1 resistor acr
59. lues Poor electrode performance sample is not stable interference Improper electrode setup or electrode failure No D O signal or signal from sensor is very weak 30096 Previous setting retained 1 5 Temperature Sample outside of TC operating compensator TC is off range of 5 C to 105 scale 1 6 dissolved oxygen There is no dissolved oxygen measurement CA1 7 Display shows Err reading is too high for display 855 221 Display shows 0 00 ppm TC not connected Sensor reading is below measuring capability of analyzer Dissolved oxygen displayed using ppb units and dissolved oxygen is greater than 9 999 ppb www iccontrols com ERROR MESSAGES Solutions The analyzer is at the limit of it s measuring capability Check the sensor setup to ensure sensor is functioning properly Service or replace the sensor if necessary The analyzer needs electronic adjustments Arrange for servicing Check electrode and setup until stable reading is achieved redo calibration Setup electrode then redo calibration Refer to Troubleshooting section Check electrode connection then redo calibration Refer to Troubleshooting section Use manual temperature compensation Check TC connections or install TC Sensor is not connected or there is a bad connection Connect the D O sensor or check connections Display D O using ppm units Select d o unit from m
60. m The differential provides a digital equivalent of a hysteresis HIGH ALARM LOW ALARM differential differential C N SETPOINT alarm on SETPOINT sample sample alarm off time Illustration 27 High alarm Illustration 26 Low alarm time 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 or temperature The set point and differential for the alarm have no effect when the alarm is used as a fault alarm um 855 221 www iccontrols com Page 35 ALARM FUNCTIONS IC Controls 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 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 HIGH CONTROL sample sample
61. ng to show OFF Illustration 30 Configuration menu Re initializing All Settings Occasionally it may be desirable to reinitialize all of the program settings 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 Auto Ranging Dissolved Oxygen The analyzer program allows the user to select either manual or automatic ranging By default the analyzer will automatically switch between ranges Refer to the section entitled Automatic Range Switching for further details um 855 221 www iccontrols com Page 37 CONFIGURATION OF PROGRAM IC Controls 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 acce
62. ntrols com 98 0 9 31 9 12 8 93 8 75 8 59 8 42 8 26 8 11 7 96 7 82 7 68 7 55 7 42 7 29 7 17 7 05 6 94 6 82 6 71 6 60 6 50 6 40 6 30 6 20 6 10 6 00 5 91 5 82 99 0 9 41 9 21 9 03 8 84 8 67 8 51 8 35 8 19 8 04 7 90 7 76 7 63 7 50 7 37 7 25 7 13 7 01 6 90 6 79 6 68 6 57 6 46 6 36 6 26 6 16 6 06 5 97 5 88 Appendix C Saturated D O Values 100 0 101 0 101 3 9 50 9 30 9 12 8 93 8 76 8 59 8 44 8 28 8 13 7 98 7 84 7 70 7 57 7 44 7 32 7 20 7 09 6 97 6 86 6 75 6 64 6 53 6 43 6 33 6 23 6 13 6 04 5 94 9 60 9 40 9 21 9 03 8 85 8 68 8 52 8 36 8 21 8 06 7 92 7 78 7 65 7 52 7 40 7 28 7 16 7 05 6 93 6 83 6 71 6 61 6 50 6 40 6 30 6 20 6 10 6 01 9 63 9 43 9 24 9 06 8 88 8 71 8 55 8 39 8 24 8 09 7 95 7 81 7 68 7 55 7 42 7 30 7 18 7 07 6 95 6 84 6 73 6 63 6 52 6 42 6 32 6 22 6 13 6 03 102 0 103 0 104 0 105 0 106 0 9 70 9 50 9 31 9 12 8 95 8 77 8 61 8 45 8 30 8 15 8 01 7 87 7 73 7 60 7 48 7 35 7 23 7 12 7 00 6 89 6 78 6 68 6 57 6 47 6 37 6 27 6 17 6 08 9 79 9 59 9 40 9 21 9 04 8 86 8 70 8 53 8 38 8 23 8 09 7 95 7 81 7 68 7 55 7 43 7 31 7 19 7 07 6 96 6 85 6 74 6 64 6 53 6 43 6 33 6 24 6 14 9 89 9 68 9 49 9 30 9 13 8 95 8 79 8 62 8 47 8 31 8 17 8 02 7 89 7 16 7 63 7 50 7 38 7 26 7 15 7 03 6 92 6 81 6 71 6 60 6 50 6 40 6 30 6 20 9 99 9 78 9 58 9
63. oint 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 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 CALIBRATE C F kPa PSI effciency 15 min timeout if no key pressed ppm saturation Illustration 18 Dissolved oxygen menu um 855 221 www iccontrols com Page 23 DO CALIBRATION 1 Controls Barometric Pressure Compensation The 855 uses manual pressure compensation by way of a manual pressure compensation set point When the analyzer is calibrated the specified pressure is used to determine the concentration of dissolved oxygen The 100 saturation reading is affected both by temperature and by pressure While the barometric pressure only affects the 100 saturation reading at calibration its use reduces calibration errors that could cause readings to be off by as much as 2 When metric units the
64. olved oxygen at the current temperature and pressure For example at 25 77 F and 101 3 kPa 1 atmosphere 14 69 psi the maximum amount of oxygen that be dissolved in water is 8 24 ppm If at this temperature and pressure the analyzer is measuring 2 0 ppm the percent saturation would be 2 00 100 24 3 Switch between display units by changing the setting in d o unit The options are 1E 6 for ppm 1E 6 is scientific notation for millionth PPb for ppb equivalent to 1E 9 and SAt for percent of saturation The conversion between ppm and ppb is as follows 1 ppm 1 000 ppb 1 1 PPb The conversion between ppm ppb to percent saturation is somewhat more complicated because this conversion is not a simple multiplication factor but depends on the temperature and pressure of the solution Illustration 13 shows the D O concentration at various temperatures and pressures Both the temperature and the atmospheric pressure need to be known in order to accurately calculate the percent saturation of the solution 7 94 kPa e 98 102 106 kPa A N L Dissolved Oxygen ppm Illustration 13 ppm D O values at various temperatures and pressures Page 20 www iccontrols com um 855 221 1 Controls 855 D O
65. on the sensing electrode The analyzer reads out concentration as if the process were at 25 or 77 F regardless of actual solution temperature um 855 221 www iccontrols com Page 47 Appendix Security IC Controls 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 access to all analyzer settings available through the menu as described in this manual access level description View only access Usage operator and for information only Having security disabled gives the user the same access to the program as being at access level 2 at all 0 times Access to editable settings calibration setpoint span etc except for configuration menu Usage calibration and technical adjustments With security enabled anyone can view settings anywhere the program When you do not have proper access rights the program will display PASS for 2 seconds indicating that a proper password must be entered before being allowed to proceed 1 This appendix contains instructions for setting passwords in the configuration section of the menu Daily usage of the analyzer by the operator does not require knowledge of setting passwords in the configuration section since all passwords ar
66. orming 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 with 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 Page 64 www iccontrols com um 855 221 1 Controls INDEX Accesslevels 48 Acknowledging error messages 26 Alarms 33 caution messages 26 default settings 54 delayed activation 34 deviation 33 35 differential 33 36 fault 33 35 function 33 high 35 indication of 33 low 35 manual override 34 on off control 36 relay contacts 37 sensitivity of 35 set point 33 units 34 use of contacts 33p wiring 34 AUTO key 16 34 Automatic range switching 30 Automatic temperature compensation 23 Battery backup 13 Calibration D O 25 D O input circuit 42 electronic 43 output 43 temperature input circuit 42 zero oxygen standard 22 Caution messages 26 28 Celsius 19 Configuration defaults 54 input on off switch 15 37 re initializing 37 units 1
67. osed configuration selected will remain in effect even when the alarm contacts are used to indicate the range number for the first 4 mA to 20 mA output Page 34 www iccontrols com 855 221 1 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 2 0 ppm and 4 0 ppm then we would set in to d o Func to dEv SEt to 3 0 and dEv to 0 5 Effectively a high alarm at 4 0 ppm and a low alarm at 2 0 ppm has been set The differential setting will continue to function as for high and low alarms High or Low Alarm A high alarm is set when the value of the dissolved oxygen or temperature rises above the set point and is cleared when the dissolved oxygen or temperature drops to below the set point minus the differential refer to illustration 27 A low alarm is set when the value of the dissolved oxygen or temperature drops below the set point and is cleared when the dissolved oxygen or temperature rises to above the set point plus the differential refer to illustration 39 The differential has the effect of setting the sensitivity of the alar
68. oss T and T terminals Adjust blue trimpot VR202 for a reading of 0 200 VDC at TP202 Refer to drawing D5940109 for component locations Place a 1385 1 resistor across T and T terminals Adjust blue trimpot VR203 for a reading of 4 85 VDC at TP202 Refer to drawing D5940109 for component locations Close the case and press SAMPLE followed by the Down arrow key to display the temperature reading Re insert the 1000 1 resistor and adjust VR202 until the display reads 0 0 C 0 1 C Re insert the 1385 1 resistor and adjust VR203 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 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 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 Page 42 www iccontrols com um 855 221
69. output The factory default of 5 s adds the next four seconds worth of readings to the first and divides by five this provides a fast response Selecting 99 s adds the readings for 99 s and divides by 99 providing smooth damping out of turbulent readings Any selection between 3 s and 99 s can be made Select CONF in from the menu Use the up or down arrow key to select the input to be adjusted then select the dA frame Press ENTER to edit the input damping to the selected seconds Press ENTER to leave edit mode Page 16 www iccontrols com um 855 221 1 Controls EDIT 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 Editing a value is like picking an option from a list only one item on the list can be seen at a time 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 Al 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
70. p beaker so that it is 2 inches to 3 inches below the surface of the liquid refer to illustration 17 Provide slow gentle movement to ensure the oxygen present is consumed D O sensor should rapidly fall to 0 1 ppm to 0 2 ppm levels confirming operation of the sensor Keep about 2 or 3 inch below surface Illustration 17 Zero test setup Page 22 www iccontrols com um 855 221 1 Controls D O CALIBRATION Temperature Compensation Almost all industrial applications encounter fluctuating temperature and need rapidly responding automatic compensation 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 855 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 or 77 F is normally used Selecting Manual Temperature Compensation To see the current temperature compensation method used by the 855 analyzer during calibration and for calculation of percent saturation select d o tc from the menu refer to illustration 18 Either Auto for automatic temperature compensation SEt for manual temperature compensation set p
71. r 9 After completing the above steps the analyzer is now in normal operational mode Analyzer settings and parameters can be viewed and or changed at any time using the keypad um 855 221 www iccontrols com Page 13 STARTUP 1 Controls Start up Settings The 855 dissolved oxygen analyzer uses a sensor with a galvanic cell which has an electrochemical zero current output at 0 ppm dissolved oxygen Full scale calibration is easily done using atmospheric air as the oxygen standard The 855 needs only to have the operator remove the cell expose it to air plus enter the calibrate command stabilization temperature and pressure compensation plus calibration adjustments are automatic Temperature plays a major role in dissolved oxygen readings The 855 has stored temperature vs dissolved oxygen tables in it s 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 855 also has pressure vs dissolved oxygen at saturation tables stored in it s memory Refer to Appendix C for a table of saturated D O values at various temperatures and pressures Refer to Appendix D for a list of all analyzer default settings Changing Settings Analyzer settings and parameters can be viewed and or changed at any time Refer to the menus starting on
72. ressed for 15 minutes This time out has the same effect as pressing the SAMPLE key If rr 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 iLOG access The user will have to enter an appropriate password to go DN to a higher access level out 2 When the sample value is displayed pressing the Left arrow key will show which of dissolved oxygen or temperature is displayed Pressing Right arrow key displays the sample reading again SEr b 3 Each input can be turned off and thereby effectively disappear from the menu if it is turned off in the configuration menu To change the configuration refer to On Off Switch in the Configuration of Program section PASS 4 The main sample ie the input that is displayed first when the SAMPLE key is pressed can be changed By default the main StbY b input is d o Change the default in CONF in dFLt Refer to Configuration of Program section for details Illustration 8 Main menu um 855 221 www iccontrols com Page 15 EASY MENU 1 Controls 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 8 will be displayed Use the Up or Down arrow keys to display the prompt above
73. rols com Page 43 ELECTRONIC HARDWARE ALIGNMENT IC Controls Testing Relay Outputs 1 Relay output operation can be verified by testing for contact closure or continuity at each relay To activate 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 closed contact should open and open contact should close 2 Repeat step 1 for the Alarm B contact 3 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 Page 44 www iccontrols com um 855 221 1 Controls DISPLAY PROMPTS DISPLAY PROMPTS 1E 6 Dissolved oxygen units in parts per million ppm from E 6 millionth SVDC D O input voltage ACC n Access level for security Displayed after password entered by user AL Alarms AL A Alarm A AL b Alarm B ArnG Automatic range switching for 4 mA to 20 mA output ASCI ASCII serial output log Auto Automatic BAud Baud rate for serial communications C Temperature in degrees Celsius use metric units CAL Calibrate analyzer CHIP Chip Is this analyzer equipped with a real time clock chip CF Compensation factor membrane CLr Clear the internal data log cnt Count of number of readings in internal data log C
74. rom 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 um 855 221 www iccontrols com Page 29 OUTPUT SIGNALS 1 Controls 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 ppm to 20 ppm As soon as the D O level drops below about 1 ppm a typical recorder would be able to show very little resolution refer to illustration 21 The alternative of having an operator change the scale adjustment is impractical in most cases Automatic range switching will automatically expand the RANGE SWITCHANG span adjustment by a factor of 10 each time the output level is within the bottom 10 of the scale With automatic range switching in effect for output 1 the output will adjust automatically over 3 ranges moving from range 1 which is 100 of full scale to range 3 w
75. rovided 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 IMPORTANT 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 Monthly Maintenance Certain applications may require occasional sensor cleaning A monthly maintenance check is recommended by visual examination of the sensor cell area If needed a soft wipe can be used to blot the area plus detergent and water can be used to remove any deposits Rinse thoroughly after cleaning with water Perform a calibration and if the sensor efficiency is above 50 return to service Black or red discoloration inside the sensor cap may not cause problems However if after calibration the electrode response is slow replace the electrolyte and wipe the coils and surface lightly using a soft wipe or a little more vigorous cleaning can be done using a toothbrush Recharge with fresh electrolyte Calibrate and return the sensor to service Yearly Maintenance Replace the membrane module and electrolyte Unscrew the electrode cap and dump the contents Flush the cell internals with deionized water and rinse with electrolyte Examine the lead coils for black or red discoloration or heavy gray coating Such coatings should be remo
76. s from 1200 to 38400 baud can be selected the default is 9600 baud For RS485 systems with automatic send data control the lowest baud rate that can be used 1s 9600 5 To enable serial transmission by the analyzer set the serial ON OFF switch to ON select SEr ON OF and edit to display on 6 Turn on ASCII output select ILOG ASCH and edit to display on DB 9 Connector 5 1 B BLACK 9 3 EARTH SHIELD J Pin Assignments Pin 1 RD A Analyzer Pin 2 TD B C Pin 3 TD A RE Pin 5 COM Pin 9 RD B Illustration 36 RS485 wiring Page 56 www iccontrols com um 855 221 IC Controls Appendix F Serial Output Portable Laptop Hookup RS232 to RS485 Converter The P N A7900015 is a port powered half duplex RS232 to RS485 converter unit supports two wire RS485 communications The converter handles the enabling and disabling of the transmitter This works regardless of the operating system or program you are running The RS232 side has a DB9 female connector The RS485 side has a six position RJ11 connector Illustration 37 RS232 to RS485 converter Material List P N A7900015 RS232 to RS485 converter P N A2500192 10 foot cable with RJ11 connector at one end data wires at other end Installation 1 It is good practice to first turn off the analyzer before connecting a s
77. sese 22 Saturated Air Calibration 22 Zero Test Techmgue 2 22 Temperature 23 Selecting Manual Temperature Compensation 23 Barometric Pressure Compensation 24 Manual Pressure 24 Calibration Procedure sees 25 Output 25 ERROR MESSAGES eee 26 Acknowledging an Error 26 Error Messages for Dissolved Oxygen 27 Messages for Temperature Input 27 Error Messages for 28 IC Controls Caution Messages for 28 OUTPUT SIGNALS esee 29 Reversing the 4 mA to 20 mA Output 29 Simulated 4 mA to 20 mA Output 29 Automatic Range Swtrchng 30 Enabling Automatic Range Switching 30 Range Switching for D O Input 30 Remote Indication of Range Number 31 Using the Alarm Contact 31 Using the Second 4 mA to 20 mA 32 Unit 32 ALARM PUNCTIONS eee 33 Use of Alarm Contact 33 Alarm Indication nee 33 Alarm Override sese 34 Delayed 34 Unit Selection E 34
78. sing the sensor Submersion sensors should not be mounted where a lot of air bubbles rise in the tank they will cause spikes in the D O readout Removal of the Dissolved Oxygen Sensor Flow and Insertion Type 1 Stop the sample flow to the dissolved oxygen sensor and vent the sample line to atmosphere 2 If installed by insertion directly into a tank wall ensure the level in the tank is below the sensor before removing sensor 3 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 levels Parting the membrane will cause dissolved oxygen sensor failure 4 When the dissolved oxygen sensor has been fully removed wipe the sensor clean and then proceed to the calibration procedure or monthly yearly maintenance as necessary D O Sensor Insertion 1 Inspect the inside of the flow cell and or insertion fitting for any foreign matter and wipe out any dirt which may be inside It should appear clean shiny and bright 2 Feed the sensor cable through the union nut and collar if not already assembled 3 Insert the assembled and calibrated D O sensor into the flow cell or vessel Gently rock the sensor back and forth to pass the O rings through the flow cell or vessel 4
79. ss 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 Refer to Appendix A for details on how to enable and or disable security Membrane Selection Dissolved oxygen sensor models 802 and 825can be ordered with a choice of membranes Standard membrane no dash option specified Fast response membrane thinner and less durable specified with 4 option Ruggedized membrane thicker and slower response specified with 5 option For more accurate response the analyzer configuration should be adjusted to reflect the membrane used by the sensor From the menu select CONF in d o CF then select the appropriate membrane Membrane Compensation Factor NONE No membrane compensation Fast response membrane Standard membrane no dash option Ruggedized membrane Illustration 31 Membrane compensation factor menu 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 Page 38 www iccontrols com um 855 221 1 Controls SENSOR MAINTENANCE SENSOR MAINTENANCE The dissolved oxygen sensors p
80. t 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 The alarm module will be using different units for the settings depending on the input selected Select unit from the alarm menu to display the units in use for this alarm The temperature input will use different units depending on whether metric or imperial units are selected For temperature the unit selection can be viewed only The choice between metric or imperial units is made in the configuration menu Refer to Configuration of Program section for further details The D O input allows the user to select between ppm ppb and percent saturation units Edit the unit setting to choose the desired units for alarm settings 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 To edit the configuration select CONF from the menu The normally open normally cl
81. take off point or by installing a knock out pot Alternatively a dirty water sample system may be needed Readings consistently low or spike low Characteristic of wiring problems between the analyzer and the sensor an open circuit in the field wiring will result in zero cell current and a very low reading Review the installation instructions 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 the sensor will need to be cleaned Refer to the Chemical Cleaning Maintenance section in this manual Readings at maximum Err message under all conditions Usually an indication that the D O sensor is in air but still set to display in ppb oxygen Caution 1 7 will appear in the error menu Select d o unit from the menu then set units to ppm 1E 6 frame With units as ppm displayed readings can be greater than 10 ppm 9 999 ppb message means off scale high 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 a high surge that slowly falls over some hours may be observed Correct by finding air in leakage point and stopping leak um 855 221 www iccontrols com Page 41 ELECTRONIC HARDWARE ALIGNMENT IC Controls ELECTRONIC HARDWARE ALIGNMENT Alignment of Dissolved Oxygen Detection Circuit 1 25 Set up a precision mu
82. utput channel Each output channel can be independently configured to transmit the dissolved oxygen or temperature signal 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 list of available inputs available units depend on type of input selected To adjust the output span 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 amc E ac automatic range switching on o 20 mA output The analyzer will automatically scale the output mG ki range number for automatic range switching according to the new settings Illustration 20 Output menu Reversing the 4 mA to 20 mA Output The low scale setting will normally be lower than the 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 F
83. ved for best performance Note 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 Remove the old membrane module from the cell and replace with a new Re assemble the cell calibrate check efficiency and if above 50 return to service Chemical Cleaning Maintenance 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 Unscrew the tip retainer exposing the coils and gold tip 2 Immerse in cleaning solution refer to illustration 32 for 5 minutes to 10 minutes or until deposits disappear ensor 3 Remove and rinse in deionized water use a soft cloth to wipe in direction of coils or a toothbrush to speed removal Keep coils below 4 Repeat steps 2 amp 3 until coils and look clean and coils surface have a gray shine Illustration 32 D O sensor cleaning um 855 221 www iccontrols com Page 39 SENSOR MAINTENANCE 1 Controls 5 Re assemble the D O
84. without doing anything Illustration 11 Edit keys Page 18 WWW Accontrols com um 855 221 1 Controls EDIT 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 Using metric units the pressure is displayed as kPa The analyzer can also use imperial units For 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 In this instruction manual the temperature input is always identified as C throughout the menus To select imperial units for the analyzer select unit from the configuration menu then go into edit mode and change the setting to F Since this is a global setting both the units for temperature and pressure will change Real Time Clock The analyzer clock is 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 Intelligent Access Program which is available as option 35 Analyzers purchased with option 34 have a real time clock which will maintain the correct time and date even when the analyzer power is turned off Display Units By default the 855 analyzer will come up reading parts per million d
85. y to protect settings 13 Durable housing IP65 NEMA 4X Page 6 www iccontrols com um 855 221 1 Controls Specifications PROPERTY Display Display Ranges Keypad LED s Case Dimensions Weight Shipping Weight Shipping Dimensions PROPERTY Temperature Environment Ratings Electrical Ratings Electrical Requirements um 855 221 INTRODUCTION Physical Data CHARACTERISTIC Four and one half LCD digits 1 5 cm 0 6 in displays for dissolved oxygen temperature efficiency error codes prompts and diagnostic information back lit display optional Dissolved Oxygen 0 00 mg L to 20 00 mg L or 0 00 ug L 9 999 ug L or 0 00 to 100 0 saturation Temperature 5 0 C to 105 C 23 0 F to 221 F 8 pushbutton entry keys 2 alarms A and B 1 auto 1 error 12 0 H x 20 0 W x 7 5 D 4 7 in H x 7 9 in W x 3 0 in D 1 1 kg 2 5 Ib 2 3 kg 5 0 Ib 30 x 23 cm x 23 12 in x 9 in x 9 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 F 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 es 655 1 ww iccontrols com Page 7 INTRODUCTION Specifications PROPERTY Accuracy Precision Response Time Temperature Compensation Pr
86. ygen in air saturated with water vapor The 855 has a microprocessor memory programmed with all the values plus automatic temperature compensation 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 tap water This calibration technique will give a 100 saturation reading for the temperature and pressure which the Sai 855 will display as ppm dissolved oxygen actual dissolved oxygen table values listed in Appendix To calibrate D O sensor suspend the probe above water a beaker and let the analyzer auto calibrate refer to illustration 16 Illustration 16 Calibration setup Zero Test Technique The best way to zero check at the point of use is to use a zero oxygen standard sodium sulfite oxygen scavenger with a cobalt chloride catalyst available from IC Controls as P N A1100193 in a 500 mL bottle or as a 6 pack as P N A1100193 6P Caution If zero standard gets on hands wash with running water Preparation of Zero Oxygen Standard To 1 liter of distilled water add 20 grams of NaSO and 10 milligrams of and mix thoroughly Make sure that the zero standard is used within 8 hours because the oxygen scavenger will be used up quickly with exposure to air Submerge the D O sensor in a dee
87. yte until the center cavity 15 full Tilt at about 30 degrees from vertical and add an extra 1 8 inch of electrolyte observing that the crack around the membrane module fills with electrolyte Next hold the cap like a cup refer to illustration 34 and slowly lower the electrode coils vertically down into the cap until the threads touch 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 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 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 gold electrode should be clear There should be no lines from trapped bubbles between the membrane and the gold electrode If there are no visible problems the D O sensor is ready to be put into service Page 40 www iccontrols com um 855 221 1 Controls TROUBLESHOOTING TROUBLESHOOTING 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 In this case the problem may be alleviated by changing the

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