OPERATING INSTRUCTION MANUAL MODEL
Contents
1. Temperature output 100 point in the Utility Menu See table in 7 2 2 Now use the arrow button to show 45 0 on the display Press ENTER The display will flash until ENTER is pressed again to confirm entry c Press CALL to indicate OUTPUT LOW which is the Temperature output 0 point in the Utility Menu See table in 7 2 2 Now use the arrow buttons to show 10 0 on the display Press ENTER twice as above d Press RUNto return to on line or press CALL to proceed to another item in the Utility Menu 7 4 Adjust 0 1 mA 0 5 Vdc Output 7 4 1 Model 2200D P91 It may be desirable to fine tune the 0 1 mA 0 5 Vdc output to take into account the characteristics of your particular loop The following method involves a high and low calibration and requires the use of a digital multi meter DVM Proceed as follows ignoring the instrument display a Turn off the power to the instrument Connect your DVM to the 0 5 Vdc output terminals on the power supply board b Turn on the power Enter the Utility Menu as described in 7 2 1 c Press CALL to indicate sat ppm which is 0 1 mA 0 5 Vdc output adjust low in the Utility Menu See table in 7 2 2 Use the arrow keys to make your DVM read 1 25V Press ENTER twice to confirm d Press CALL to indicate TEST which is 0 1 mA 0 5 Vdc Output adjust high in the Utility Menu See table in 7 2 2 Use the arrow keys to make your DVM read 3 75V Press ENTER twice to con2. the circuit board 9 4 Sensor Fault 9 4 1 If the membrane of the sensor cartridge is pierced the alarm relay contacts will close and the FAIL LED For Model 2200D X 1 and STATUS LED For Model 2200D X 2 will be illuminated However it may be difficult to see the leakage with the naked eye A slight pressure on the membrane with a finger will produce a drop of liquid The cartridge must be replaced See Section 9 4 3 9 4 2 With operating time silver oxide will build up on the anode silver wire When the anode becomes brown as a result of the deposit it is time to replace the sensor cartridge 9 4 3 To replace the sensor cartridge unscrew the retaining nut remove and discard the spent cartridge and replace with a new cartridge AquaMetrix Part No P91 D 9 5 Relay Replacement 9 5 1 The relays are plugged into the power supply board just above the terminals Be sure all the power including independent power to the relay is off Unplug the relay in question and replace with a new relay AquaMetrix Part No 17 38 Model 2200D P91 Page 23 9 6 Customer Service 9 6 1 If a problem has not been resolved with the above procedures a telephone consultation with your Aquametrix representative or directly with Water Analytics will provide the answer Water Analytics Inc Tel 978 749 9949 100 School Street Fax 978 749 9961 Toll free 855 747 7623 Andover MA 01810 Email support WaterAnalytics com 9 7 Parts and Accessories 9
3. 2200D P91 Page 9 4 6 Analog Outputs 4 6 1 4 6 2 The analog output signals consist of a non isolated 0 1 mA 0 5 Vdc and isolated 4 20 mA signals From the factory all of the analog outputs have a linear range corresponding to the full range of the instrument The 4 20 mA output can be programmed to another linear range by entering two values Output High This is the D O value at which you wish to have 100 output Output Low This is the D O value at which you wish to have 0 output When programming you must ensure that the output range has a span of at least 10 of the full range of the instrument For applications that require the output to decrease as the process value increases i e an inverted output the Output High value will be less than the Output Low See Section 5 4 The instrument may be used to measure the temperature of the process either in Celsius or in Fahrenheit The 2200D does not control temperature but the 0 5 Vdc and 0 1 mA analog outputs can be dedicated to follow the process temperature See Sections 5 6 4 7 Operation Menu 4 7 1 4 7 2 4 7 3 4 7 4 Model 2200D P91 The operation menu allows the user to recall and to adjust the parameters required by the analyzer functions When the analyzer is powered up the program will display D O readings None of the LEDs in the operation menu will be illuminated Five buttons on the panel are used to operate the menu Use the CALL button
4. 7 1 The major parts are listed below When ordering parts please use the complete part number Description Part Sensor P91 Sensor Cartridge P91 D Fuse 0 25A Quantity of 5 35 72 Relay Quantity of 1 for Model 2200D X 1 17 38 And Quantity of 3 for Model 2200D X 2 Power Supply Circuit Board Assembly C13 103A Microprocessor Circuit Board Assembly C13 96 9 8 Instrument Return 9 8 1 If you are returning the instrument for service please enclose a written description of the problem and a purchase order to cover the repair Be sure to pack the instruments adequately because Water Analytics will not be responsible for shipping damage For safety reasons Water Analytics cannot accept instruments and sensors for repair that have not been thoroughly cleaned of process materials STATEMENTS OF CONFORMITY FROM THE MANUFACTURER U S A WARNING This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions manual may cause interference to radio communications It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules which are designed to provide reasonable protection against such interference when operated in a commercial environment Canada This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the radio interference regul
5. factory Relay A is configured to control decreasing D O However you may change the direction of control by changing the position of DIP switch 4 Bank S1 Please refer to Section 4 8 5 8 2 The relay setpoint may be at any place on the scale To establish the setpoint proceed as follows a Press CALL to enter the MENU If the PASSWORD function is enabled enter the password then press CALL to illuminate the sat ppm indicator If the PASSWORD function is not enabled sat ppm will illuminate at the first press of CALL b Use the down arrow button to illuminate the PPM LED located to the right side of the display Model 2200D P91 Page 15 c Press CALL the required number of times until RELAY A SETPOINT is indicated Now use the arrows to make the display read the desired value Press ENTER The display will flash until ENTER is pressed again to confirm entry A LED above the display indicates when Relay A is activated d Press RUN to place the instrument on line or press CALL for another menu selection 5 9 Relay A Deadband For Model 2200D X 2 only 5 9 1 If you have configured the instrument with the DIP switch on the back of the panel for falling D O you will wish to have the deadband sometimes called hysteresis at a higher value than the setpoint If you have established a setpoint of 3 ppm you may wish the deadband to be between 6 ppm and 3 ppm Proceed as follows a Enterthe menu and press CALL the requ
6. menu and check your settings A convenient way to do this is to call TEST See Section 5 5 If your 2200D appears dead or intermittent check the breaker make sure that the instrument is set up for the available line voltage and make sure the line voltage is actually available at the terminals Now measure that sufficient voltage is available at all times it should be 98 Vac to 132 Vac or 187 Vac to 243 Vac respectively Shut line power off making sure it is off CAUTION Power to the relays may be supplied from a separate source shut it off too Check and if necessary replace the internal 0 25A fuse Push the connector of the ribbon cable firmly into its socket If these steps do not solve the problem it may be necessary to replace the power supply board See Section 9 3 1 below If the process value seems wrong clean the sensor as described in Section 6 1 3 Inspect the sensor wire terminal block connections and interconnections Calibrate and resume operation To find out whether the problem is in the sensor or in the analyzer use the self testing features Leave the instrument in RUN mode and proceed as follows a Move the slide switches S40 and S41 on the back of the swing out panel from position ON LINE to position TEST b Press CALL to enter the menu and go to sat ppm c Set the D O simulation DIP switch Bank S42 switch No 1 On Switches No 2 3 and 4 Off The display should show 4 ppm 5 d Now procee
7. AQUametrix by Wa Water Analytics OPERATING INSTRUCTION MANUAL MODEL 2200D P91 DISSOLVED OXYGEN SYSTEM REV 8 0 Water Analytics Inc 978 749 9949 100 School Street Toll free 855 747 7623 855 pHProbe Andover MA 01810 Fax 978 749 9961 www WaterAnalytics net TABLE OF CONTENTS GENERAL INFORMATION SPECIFICATIONS INSTALLATION DESCRIPTION OF FUNCTIONS START UP AND OPERATION OPERATING HINTS UTILITY MENU DIAGNOSTICS TROUBLESHOOTING AND SERVICE 12 17 18 20 21 1 0 MODEL 2200D DISSOLVED OXYGEN ANALYZERS AND MODEL P91 DISSOLVED OXYGEN SENSOR INSTRUCTION MANUAL GENERAL INFORMATION The AquaMetrix Model 2200D Dissolved oxygen analyzer is a versatile industrial microprocessor based instrument Outputs are programmed through the menu with push buttons on the face of the instrument Calibration is also accomplished through the front panel menu The instrument must be used in conjunction with the AquaMetrix Model P91 dissolved oxygen sensor The instrument provides non isolated 0 5 Vdc 0 1 mA and isolated 4 20 mA analog outputs The analog outputs may be programmed to represent any segment of the measuring scale A membrane perforation alarm is provided which gives early warning of a membrane failure The instrument can also be used to take a temperature reading and one of the non isolated analog outputs can be used to give a continuous temperature signal The integrity of the system is ensured with a watch dog ti
8. ELAY High Low with fixed deadband of 2 of full scale Normal or fail safe operation Rating 5A 115 230 Vac 5A 30 Vdc SPDT RELAY INDICATORS Three LEDs indicate status or the three relays P91 SENSOR Page 2 TEMPERATURE RANGE 0 40 C 32 to 104 F WETTED MATERIALS PVC and Teflon F E P FAILURE ALARM 5A SPDF relay closes if membrane is punctured LED on panel is illuminated CABLE Integral 8 m 26 ft Maximum distance to analyzer 300 m 1000 ft REPLACEMENT CARTRIDGE Part No P91 D Hermetically sealed MOUNTING HARDWARE FLOTATION MOUNTING Model MHBF consists of ball float extension pipe swivel bracket junction box and 50 feet of interconnect cable SUBMERSION MOUNTING Model MHDS consists of 5 ft PVC pipe junction box and 50 feet of interconnect cable FLOW THROUGH ASSEMBLY Model MHFT Pipe connections are 2 NPT Model 2200D P91 Page 3 3 0 INSTALLATION 3 1 Location 3 1 1 Locate the instrument within the reach of the cable provided for the P91 sensor 3 1 2 Select an installation site which is free of mechanical vibrations reasonably clean and dry protected from falling corrosive fluids within the ambient temperature and humidity specifications remote from high voltage relay and power switches 3 2 Type of Mounting 3 2 1 If the instrument is to be pipe or panel mounted a special hardware kit will be required For panel mount order part number C35 68 For pipe mount orde
9. and every time the instrument 4 8 3 DIP Switch Bank S1 o Y O Ol AR ON Dip Switch Bank S2 ONDQDUIDSDWVNE Model 2200D P91 is taken into the menu mode Therefore after changes to the DIP switch settings you must take the unit offline by pressing CALL in order for the instrument to scan the new DIP switch values The following table describes the use of the 16 DIP switches Switch Switch Description of Use OFF ON Selects temperature unit E C Enables use of Password Feature YES NO Fail Safe mode for Relay A NO YES for Model 2200D X 2 only Direction of Control Relay A Rising Falling for Model 2200D X 2 only Alarm Relay to Activate for Memory Loss YES NO Fail Safe mode for Alarm Relay NO YES Auto Return from menu if no button pressed NO YES 0 5 Vdc 0 1 mA selector Temperature D O Fail safe for Relay B NO YES Direction of Control for Relay B Rising Falling Reserved Reserved Reserved Reserved Reserved Reserved Page 11 4 9 Output Hold 4 9 1 Output hold is a function which freezes all output signals at the last value to prevent the occurrence of wild distortions during programming and maintenance 4 9 2 When the Operation Menu is entered by pressing CALL the alarm relays and the analog outputs are automatically placed on hold and remain on hold until the instrument returns to on line The output hold will remain for a maximum of 10 minutes after the last button was pressed if this feature has been
10. as above c The analog output will now be at 4 mA when the D O of the solution is 5 ppm and will increase to 20 mA when the D O of the solution is 10 ppm d Press RUN to place the instrument on line or press CALL for another menu selection e To invert the output i e decreasing output for increasing process value simply adjust for 4 mA on OUTPUT HIGH and for 20 mA on OUTPUT LOW NOTE A range expand of less than 10 of full scale is an invalid entry which will be indicated by the LED flashing when you return to RUN To correct return to the menu and correct the output settings 5 5 Test 5 5 1 To test your setup press CALL the number of times required to indicate TEST Now by using the arrow buttons you can sweep through the digital display 5 5 2 With the instrument in TEST you can check the analog output at any desired reading with a meter connected to the appropriate output terminals 5 5 3 Another use of this feature is to check the stability of the system When in TEST use the arrow buttons to select any value say 10 ppm Now return online by pressing RUN Return to the meter some hours or days later Press CALL to indicate TEST If the instrument is still in calibration and if no one has interfered the meter should read 10 ppm 5 6 Temperature 5 6 1 The temperature of the process can be read at any time by entering the menu and calling for TEMPERATURE Either C or F will be indicated depending on the position
11. ate the CALIBRATION indicator g Use the arrow buttons to make the display read 100 0 h Press ENTER as soon as the reading stabilizes The display will flash until ENTER is pressed again to confirm entry i If you wish to change the measuring unit to ppm press CALL a number of times to return to sat ppm and change ppm with the down button j Press RUN to return to on line measurement NOTE If a major change is necessary to make the display read 100 the display will flash when you press ENTER This is to warn that you may have made a mistake such as using stale water If you are confident your procedure was correct press ENTER a second time Otherwise repeat the calibration procedure by pressing CALL a sufficient number of times to go through the menu and return to CALIBRATION Model 2200D P91 Page 13 5 4 Analog Output Range Expand 5 4 1 The 4 20 mA isolated analog output may be spread over any section of the scale as long as that section is at least 10 of full scale The best way to describe this setup is by example Suppose you wish the 4 20mA output to span 4 ppm to 10 ppm Proceed as follows a Press CALL as many times as required until OUTPUT HIGH is indicated Now use the arrows to make the meter read 10 ppm Press ENTER The display will flash until ENTER is pressed again to confirm entry b Press CALL once to indicate OUTPUT LOW Now use the arrow buttons to make the meter read 5 ppm Press ENTER twice
12. ations of the Canadian Department of Communications Model 2200D P91 Page 24
13. d as follows a Enter the menu and press CALL until ALARM HIGH is indicated With the arrow buttons make the display read the desired alarm value Press ENTER The display will flash until ENTER is pressed again to confirm the entry b Press RUN to place the instrument on line or press CALL for another menu selection 5 13 Alarm Low For Model 2200D X 2 only 5 13 1 a Press CALL until ALARM LOW is indicated With the arrows make the meter read the desired value Press ENTER The display will flash until ENTER is Model 2200D P91 Page 16 pressed a second time to confirm entry b Press RUN to place the instrument on line or press CALL for another menu selection NOTE A low alarm point higher than the high alarm point is an invalid entry which is indicated by the LED flashing when you return to RUN To correct return to the menu and reset the alarm points 6 0 OPERATING HINTS 6 1 Cell Care 6 1 1 If the sensor membrane is exposed to the atmosphere for more than 24 hours the electrolyte inside the membrane can dry out If this occurs the cartridge will need to be replaced To avoid membrane dry out place the sensor in a container of clean drinking water until it can be reinstalled into the aeration basin 6 1 2 Sensor cartridges can be stored for up to 5 years if the seal on its storage container is not broken and the temperature is between 70 F and 80 F with 50 to 80 humidity Do not store sensor cartridges at tempera
14. d to turn each of the other S42 switches On with the remaining switches Off The display should read within 5 of 10 ppm with switch 2 On 16 ppm with switch 3 On and 20 ppm with switch 4 On If this is the case the analyzer is in order and the problem is with the probe e Return S40 and S41 to On line and ensure that all S42 switches are Off a To check the temperature channel move the slide switches S40 and S41 from position On line to position TEST b Set the DIP switch 1 Bank S1 On c Goto the TEMPERATURE menu item d Set the temperature simulation DIP switch Bank S43 switch No 1 On switches No 2 and 3 Off The display should show 10 degrees Celsius 5 e Now proceed to turn each of the other S43 switches On with the remaining switches Off The display should read within 5 of 25 C with Switch 2 On and 35 C with Switch 3 On If this is the case the analyzer is in order and the problem is in the sensor Otherwise the problem is in the analyzer f Return S40 and S41 to On line and ensure that all S43 switches are Off Page 21 9 2 Escape 9 2 1 9 2 2 9 2 3 9 2 4 9 2 5 If the instrument appears to be DEAD for example not responding to the buttons or not performing on line measurement and control always try the reset feature first as described in 6 3 1 a The ESCAPE procedure is to be used normally at the factory only when the unit is powered with a new MCU As a res
15. e into the flotation ball and fasten it to the end of adapter pipe This will extend the sensor s membrane 12 inches below the flotation ball NOTE Extender pipe supplied only when ordered 2 With the sensor membrane FLUSH WITH BOTTOM of flotation ball Disregard using extender pipe and proceed with Step e e Route sensor cable through assembled pipe sections starting from bottom section and fasten sensor to pipe CAUTION Do not remove measuring cell cartridge from hermetically sealed package until it is to be used in step f Membrane will dry out and damage measuring cell f Install measuring cell cartridge Unfasten union nut from sensor and make sure to remove any moisture from cavity area and brass contact strips Insert cartridge in its correctly keyed position Fasten union not tightly so that O ring compresses to create an effective water tight seal g Calibrate system in accordance with the procedure described in Section 5 3 before placing sensor into operation h Install pivot mounting bracket and mount junction box on the bracket Insert pipe sensor assembly through the bracket to the desired position Tighten pipe locking screw 3 6 Sensor Installation Submersion Mounting 3 6 1 a Refer to diagram below and proceed as follows Model 2200D P91 Page 6 3 6 2 b Route sensor cable through pipe and fasten sensor to pipe The use of thread sealant Teflon tape on all mounting hardware and sensor threads is
16. e swing out board being sure to match colors as printed on the board Connect the shield to the terminal post located above the terminal strip Running the sensor and interconnect cable in 1 2 metal conduit for protection against moisture and mechanical damage is recommended Do not run power or control wiring in the same conduit electrical noise may interfere with sensor signal Page 7 4 0 DESCRIPTION OF FUNCTIONS 4 1 Overview 2200D RELAY A RELAY B STATUS LARM sat o C D O o ppm O HOLD fa _____ ARROWS ADJUST O PASSWORD CONTROL RELAY A O ak ppm O SETPOINT Sii pg DISPLAY VALUE O TEST O DEADBAND e WHEN IN MENU o fewer a ji O ine O SETPOINT O Grut GER O DEADBAND RUN PLACES THE O OUTPUT LOW ALARMRELAY gt INSTRUMENT IN O ALARM HIGH RUN 2 THE RUN MODE O ALARM LOW J II MENU ENTER x A 7 ENTER ACCEPTS THE DISPLAY VALUE WHEN MENU PLACES THE IN MENU MODE 2200D IN MENU MODE AND STEPS THROUGH THE MENU WITH EACH PRESS 4 1 1 The Model 2200D is a microprocessor based dissolved oxygen analyzers are Model 2200D P91 designed for industrial applications They operate in conjunction with the AquaMetrix P91 sensor The software in the unit makes the instrument very easy to operate and maintain The outputs include voltage free relay contacts and industry standard analog transmission signals A re
17. eading for variation in the temperature of the process 4 4 Relay Outputs Model 2200D X 2 only 4 4 1 Three SPDT relays are provided The normally open contacts NO are open when no alarm or control is active 4 4 2 The two control relay can be programmed to close on either rising or falling D O They can be set to close at any point on the scale The deadband sometimes termed hysteresis defines the point at which the relays open See Sections 4 8 5 8 and 5 9 4 4 3 The third relay functions as a high low alarm lt has two programmable setpoints high and low The deadband is fixed at 2 of full span This relay is also activated in the event of a perforated membrane See Section 4 5 The alarm contact can be programmed to also signal memory loss in the 2200D controller See Section 4 8 5 12 and 5 13 4 4 4 All relays can be programmed for fail safe operation which reverses the normal operation of the relay In this mode the relays will fail safe transfer in the event of power failure 4 5 Membrane Alarm Relay 4 5 1 A single pole double throw relay is provided to give an output in the event of a perforated membrane This relay is also the high low alarm relay in the Model 2200D X 2 4 5 2 This relay can be programmed to also signal memory loss See Section 4 8 4 5 3 When this relay is activated the contacts will close and FAIL LED for Model 2200D X 1 and STATUS LED for Model 2200D X 2 will be indicated on the panel Model
18. enabled See Section 4 8 4 10 Parameter and Operation Checking 4 10 1 The instrument continuously checks all parameters in its memory while taking D O readings When it detects an invalid value it flashes the LEDs in the operation menu to indicate the parameter is at fault You must then access the operation menu to take corrective actions 4 11 Simulated Input for Testing 4 11 1 TEST is function for test and diagnostic purposes Values can be simulated internally and adjusted with the arrow buttons to set display reading and analog outputs to any desired value without disrupting instrument calibration 4 12 Utility Menu 4 12 1 The Utility Menu is provided to enable authorized personnel to change the range and fine tune the analog See Section 7 0 4 13 Watchdog Timer and Self Diagnostics 4 13 1 The 2200D continuously monitors the condition of all key components of the measuring system to ensure that the measurements are reliable Invalid entries and memory loss are indicated on the panel See Section 8 0 5 0 START UP AND OPERATION 5 1 Password 5 1 1 To enter the menu press CALL then PASSWORD will be indicated With each press of CALL you will step through the menu When the last item is reached the menu wraps around to sat ppm If you have enabled PASSWORD by placing DIP Switch 2 Bank S1 in the off position you must enter the password 6 when PASSWORD is indicated if you wish to change any stored value You do no
19. eveal the terminal strip on the power supply circuit board and the smaller terminal strip on the back of the swing out board Model 2200D P91 Page 4 POWER SUPPLY BOARD o O O 5 Plug In RELAYS O i O O CON ALM CON LJ O TROL TROL O B A RB KR Kl TB1 FUSE ele 20 19 118 117 116 14 113 112111 11019118 171615 1413 12 1 t lt 2 ss gt Nl J g U O J 2 Q Ssyssyssy 28522 zo o E nl l O E CONTR ALM CONTR OUT a 3 gt es RELAY RLY RELAY PUT B A INPUT ETEN LINE OUTPUTS VOLTAGE 3 5 Sensor Installation Flotation Mounting 3 5 1 Refer to diagram below and proceed as follows a Fasten elbow to 90 inch long pipe NOTE Thread sealant Teflon tape is recommended on all mounting hardware and sensor threads to avoid leaks b Fasten adapter pipe with union to elbow c Insert adapter pipe with union into flotation ball and tighten union lock ring to secure float assembly Model 2200D P91 Page 5 INTERCONNECT _ CABLE SWING OUT LIFT OFF MICROPROCESSOR BOARD 2200D 2 JUNCTION BOX SENSOR TEST A BUTTON YZ SENSOR 59 RESET d The sensor may be attached to float assembly in one of two ways 1 With sensor EXTENDED FROM BOTTOM of flotation ball Insert 12 inch long extender pip
20. firm Page 18 8 0 e Press RUN to return to on line or press CALL to proceed to another item in the Utility Menu 7 5 Adjust 4 20 mA Output 7 5 1 It may be desirable to fine tune the 4 20 mA isolated output to take into account the characteristics of your particular loop Before deciding that the adjustment is necessary be aware of the Output High and Output Low settings you may have programmed as described in Section 5 4 The following method involves a high and low calibration and requires the use of a Digital Multimeter DVM Proceed as follows ignoring the instrument display a Turn off the power to the instrument Connect your DVM to the 4 20 mA output terminals on the power supply board b Turn on the power Enter the Utility Menu as described in 7 2 1 c Press CALL to indicate CALIBRATION which is 4 20 mA Output adjust low in the Utility Menu See table in 7 2 2 Now use the arrow keys to make your DVM read 8 mA Press ENTER twice to confirm d Press CALL to indicate TEMPERATURE which is 4 20 mA Output adjust high in the Utility Menu See table in 7 2 2 Now use the arrow keys to make your DVM read 16 mA Press ENTER twice to confirm e Press RUN to return to on line or press CALL to proceed to another item in the Utility Menu 7 6 Altitude Compensation 7 6 1 The instrument can be compensated for the altitude at which it is located by the following procedure a Goto the UTILITY MENU as desc
21. g Adjust the temperature output range Adjust the offset and span of the 0 1 mA 0 5 Vdc output Adjust the offset and span of the 4 20 mA output Perform the altitude compensation Model 2200D P91 Page 17 7 2 Access to Utility Menu 7 2 1 7 2 2 Display LED Output High Output Low Sat ppm Test Calibration Temperature Status The Utility Menu is protected by password To access the Utility Menu press and hold both RUN and ENTER for five seconds until the PASSWORD LED illuminates The RUN LED will flash to warn that Utility Menu is in use Now with the arrow keys make the display read the password 7 Press ENTER The Utility Menu is entirely separate from the Operation Menu but uses the same LED display Press CALL to step through the menu items Below is the cross reference between menu items Meaning in Utility Menu Temperature Output 100 5 Vdc Temperature Output 0 0 Vdc 0 1 mA 0 5 Vdc Output Adjust Low 0 1 mA 0 5 Vdc Output Adjust High 4 20 mA Output Adjust Low 4 20 mA Output Adjust High Altitude Compensation 7 3 Temperature Output 7 3 1 The 0 5 Vdc and 0 1 mA outputs may be programmed to track the temperature of the process The factory outputs have a linear range corresponding to 0 C to 40 C or 32 F to 104 F Suppose you wish the output to span 10 C to 45 C Proceed as follows a Enter the Utility Menu as described in 7 2 1 b Press CALL to indicate OUTPUT HIGH which is the
22. ired number of times to indicate RELAY A DEADBAND Use the arrow buttons to make the display read the desired value in this example 6 Press ENTER The display will flash until ENTER is pressed again to confirm the entry b In this example after the instrument has been returned to RUN the relay will be energized when the D O falls to 3 ppm and will remain energized until the reading rises above 6 ppm c When Relay A is activated a LED above the display will be illuminated d Press RUN to place the instrument on line or press CALL for another menu selection 5 10 Relay B Setpoint For Model 2200D X 2 only 5 10 1 Relay B Setpoint is configured in the same way as Relay A Setpoint See Section 5 8 A LED above the display indicates when Relay B is activated 5 11 Relay B Deadband For Model 2200D X 2 only 5 11 1 Relay B Deadband is configured in the same way as Relay A Deadband See Section 5 9 NOTE A deadband setting on the wrong side of the setpoint in an invalid entry which will be indicated by the LED flashing when you return to RUN To correct return to the menu and change the deadband setting or if the direction of control is the problem change the position of the relevant DIP switch See Sections 4 8 and 5 9 5 12 Alarm High For Model 2200D X 2 only 5 12 1 The instrument is fitted with a relay which is set to activate on both high and low alarm conditions The deadband is factory set To set the ALARM HIGH procee
23. lay to indicate a perforated membrane is provided The analog output signals transmit low power signals to peripherals such as data recorders or control systems The software is designed for ease of operation It uses a simple menu with all items indicated on the panel The user interface consists of six buttons on the front panel The buttons are scanned and responded continuously In addition an extensive system checking for values and parameters is performed by the software All of the epee parameters are stored in non volatile memory without the need of a attery The Model 2200D operates like a normal analog converter with a number of additional functions made possible by the microprocessor in the instrument Page 8 Some of these are Recall and easy adjustment of relay and output parameters Push button calibration A HOLD function for outputs Continuous sensor check during measurement Continuous self check and watch dog timer to ensure correct operation Password protection of stored values Temperature Output Simulated input for testing 4 2 Calibration 4 2 1 The 2200D is calibrated at the factory with the sensor purchased with the instrument However the system should be field calibrated when installed and from time to time thereafter The calibration procedure is given in Section 5 3 4 3 Temperature Compensation 4 3 1 A temperature sensor in the P91 sensor provides the means of continually compensating the D O r
24. mer and system alarm A password feature protects the stored values The instrument is housed in a NEMA 4X enclosure The standard unit is provided with mounting hardware for surface mount applications Both panel and pipe mount kits can be ordered separately Model 2200D P91 Page 1 2 0 SPECIFICATIONS DISPLAY 3 1 2 digit LED 1 2 high digits MEASURING RANGES D O 0 20 00 ppm and 0 100 saturation switch selectable Temperature 0 40 C 32 to 104 F POWER REQUIREMENTS 98 132 Vac 50 60 Hz less than 10 VA Optional 196 264 Vac 50 60 Hz AMBIENT CONDITIONS 30 to 50 C 22 to 122 F 0 to 90 R H non condensing ANALOG OUTPUTS Non isolated 0 1 mA 100 ohms maximum load Non isolated 0 5 Vdc 1000 ohms minimum load Isolated 4 20 mA 800 ohms maximum load The isolated output is isolated from the input ground line power and all other outputs Range Expand The 4 20 mA analog output can be made to represent any segment of the measuring scale Minimum segment is 10 of full scale Output Hold The analog outputs are automatically placed on hold during calibration or other setup operations Temperature Output The 0 5 Vdc output can be programmed to follow either the process temperature or dissolved oxygen TEMPERATURE COMPENSATION Automatic 0 to 100 C 32 to 212 F ALTITUDE COMPENSATION Automatic 0 to 40 C 32 to 104 F DIAGNOSTICS When system erros is indicated call STATUS to obtain condition code O
25. n board simulated input to aid in troubleshooting to obtain condition code MEMBRANE ALARM A relay activates if membrane is perforated TEST Display value and analog outputs can be set manually to any value for testing and diagnostic purposes This feature allows the outputs to be tested independently of process value SAFETY amp SECURITY Non volatile memory EEPROM Passcode protected if selected Watch dog timer monitors microprocessor Model 2200D P91 Instrument automatically returns to on line operation if accidentally left in menu mode This feature may be held disabled if desired ACCURACY Saturation 1 Ppm 0 1 Temp 0 2 C STABILITY 0 1 of span per 24 hrs non cumulative RESOLUTION Saturation 0 1 Ppm 0 01 Temp 0 1 C REPEATABILITY 0 1 of span or better RESPONSE TIME 20 seconds to 90 of value upon step change at 20 C ENCLOSURE NEMA 4X fibreglass reinforced polyester enclosure with four 1 2 conduit holes and mounting feet for surface mount MOUNTING CONFIGURATIONS Standard is surface mount Optional panel mount hardware Part No 35 68 Optional pipe mount hardware Part No 35 69 NET WEIGHT 3 1 2 lbs 1 6 kg MODEL 2200D X 2 X ADDITIONAL FEATURES CONTROL RELAYS Two relays can be independently set for operation in response to rising or falling value and for fail safe operation Deadband hysteresis independently adjustable Rating 5A 115 230 Vac 5A 30 Vdc SPDT ALARM R
26. of DIP switch No 1 Bank S1 See Section 4 8 5 6 2 The 0 5 Vdc and 0 1 mA analog outputs can be dedicated to follow the process temperature by simply placing DIP switch No 8 in the off position The temperature span of the output is set to the utility menu See Section 4 8 and 7 4 Model 2200D P91 Page 14 5 7 Status 5 7 1 The 2200D continuously checks the integrity of all stored data and monitors the condition of the measuring system If a fault is detected the FAIL LED above the display will turn red The STATUS in the operation menu will provide a numerical code giving a possible cause and a suggested remedy 5 7 2 The following table shows the display codes causes and remedies Code Possible Cause Suggested Remedy 0 Normal Condition No action required 1 Reserved 2 Temperature Sensor off Scale Verify process Check for open or short connections 3 D O reading off Scale Verify process Check for open or short connections 4 Memory Loss Call your Aquametrix representative 5 Reserved 6 Sensor Fault Check probe membrane for perforation 7 Factory Setting in force as a Perform procedure according to Section 9 2 result of the ESCAPE procedure NOTE Code 4 could be a serious failure so the alarm relay will in addition to the red illumination of the FAIL LED for Model 2200D X 1 and STATUS LED for Model 2200D X 2 if DIP switch 5 Bank S1 is OFF 5 8 Relay A Setpoint For Model 2200D X 1 only 5 8 1 As shipped from the
27. op See Sections 7 3 7 4 and 7 5 b Calibrate the system as described in Section 5 3 c Setup the user values for Output High and Low See Section 5 4 For Model 2200D X 2 Control Relay See Sections 5 8 and 5 9 Alarm Relay See Sections 5 12 and 5 13 d After all the above operations are performed the FAIL LED will turn off For Model 2200D X 1 and STATUS LED will turn green For Model 2200D X 2 and Status 0 should be obtained e The unit may be tested now using the TEST menu item See Section 5 5 or the built in self testing feature See Section 9 1 4 f Bring the unit on line for measurement and control 9 3 Printed Circuit Board Replacement 9 3 1 Model 2200D P91 a To replace printed circuit boards or relays shut off all power to the 2200D including any independent power to the relay contacts Make a record of the external wiring then disconnect the wires Unplug the ribbon cable connector Page 22 b The power supply circuit board is fastened to the back of the enclosure by four screws remove the screws and the board is free Reverse the procedure to mount a replacement board c The microprocessor circuit board is located on the swing out assembly behind the door Swing the assembly out lift it up to unseat the lower hinge pin the upper hinge pin is spring loaded The assembly is now free The circuit board is fastened to the front panel by three screws Remove the screws to release
28. r part number C35 69 Instructions for both types of mounting will be included with the kits 3 2 2 For surface mounting four feet brackets together with fastening screws are provided with the instrument These should be fastened to the back of the instrument and then it may be screwed or bolted in the selected location 3 3 Conduit Connections 3 3 1 Four 1 2 conduit holes are provided in the bottom of the enclosure One of these is fitted with an approved water tight plug To maintain NEMA 4 integrity approved conduit hubs must be used to connect conduit The hubs must be connected to the conduit before being connected to the enclosure Any unused conduit holes must be closed with water tight plugs or connectors 3 3 2 For convenience of internal connections the right conduit hole viewed from the front should be used for power connection the next hole to the left for relay outputs the next hole to the left for analog outputs and finally the fourth hole for sensor input 3 4 Electrical Connections CAUTION The instrument operates from line voltage This constitutes a possible shock hazard Ensure that line power is removed before attempting connections Note A separate source of line power may have been connected to the floating relay contacts 3 4 1 To access the terminal strips open the door of the instrument and then unscrew the captive retaining screw near the upper right hand corner of the panel Now swing open the panel to r
29. recommended to avoid leaks CAUTION Do not remove measuring cell cartridge from hermetically sealed package until it is to be used in step b Membrane will dry out and damage measuring cell c Install measuring cell cartridge Unfasten union nut from sensor and make sure to remove any moisture from cavity area and brass contact strips Insert cartridge in its correctly keyed position Fasten union tightly so the O ring compresses to create an effective water tight seal d Mount the junction box within reach of the sensor cable e Calibrate system in accordance with the procedure described in Section 5 3 before placing sensor into operation The terminal strip on the power supply board at the back of the instrument is labeled for power supply relay outputs and analog outputs Connect wiring in accordance with this labeling CAUTION Connecting the line voltage power supply to incorrect terminals may cause serious damage 3 7 Probe Connections 3 7 1 3 7 2 3 7 3 Model 2200D P91 The interconnect cable as supplied will normally be connected to the sensor cable in the junction box If this is not the case connect the six wires and the shield of the extension cable to the numbered wires in the junction box as shown below Extension Cable Junction Box Blue Red Black Green White Yellow Shield Unnumbered DIAON Green Yellow Connect the six wires of the interconnect cable to the terminal strip on th
30. ribed in 7 2 1 b Press CALL to indicate STATUS which is ALTITUDE COMPENSATION in the Utility Menu c Adjust the display to your altitude in thousands of feet For example 0 34 on display corresponds to an altitude of 340 feet Press ENTER The display will flash until ENTER is pressed again to confirm entry d The supported altitude range is from 1 000 to 30 000 ft 305 to 9 144 m or 1 00 to 30 00 on the display As shipped from the factory the altitude is set to zero i e sea level e Press RUN to go on line or CALL to proceed to another Utility Menu item DIAGNOSTICS 8 1 Description 8 1 1 The 2200D has diagnostic features which alerts the operator to invalid entries and memory loss Invalid entries are indicated by the flashing of the appropriate menu LED The flashing will commence after RUN is pressed and will continue until the errors are corrected Memory loss is indicated by the flashing of TEST and by the alarm relay if enabled by DIP Switch No 5 of Bank S1 See Section 4 8 3 8 2 Invalid Output 8 2 1 Model 2200D P91 Invalid output will be indicated if the expanded range is less than 10 of full scale To correct refer to Section 5 4 Page 19 Model 2200D P91 Page 20 9 0 TROUBLESHOOTING AND SERVICE 9 1 Isolate the cause 9 1 1 9 1 5 Model 2200D P91 When a measurement problem occurs the first step is to try to isolate the cause If the 2200D is powered go through the
31. t need to enter the password to proceed to other items in the menu for recall of stored values If PASSWORD has not been enabled you do not need to enter the password to change stored values Model 2200D P91 Page 12 5 2 Percent Saturation ppm 5 2 1 The instrument provides measurement of dissolved oxygen in either percent saturation or ppm In ppm measurement the reading is automatically compensated for temperature changes in the medium a To select units of measurement enter the menu by pressing CALL to indicate sat ppm b Press the UP arrow button to select sat or the DOWN arrow button or select ppm c Press RUN to return to on line or press CALL for another menu selection 5 3 Calibration 5 3 1 To calibrate the instrument you will need a container of fresh clean water For best results a bubbler such as that used in a tropical fish tank should be in the container a Clean the sensor with a soft cloth and mild soap solution b Place the sensor over the water container for a few minutes There is no need to remove it from the float if so installed c Press CALL to enter the menu d If the password function is enabled enter the password then press CALL to illuminate the sat ppm indicator If the password function is not enabled sat pprr will illuminate at the first press of CALL e Use the UP arrow button to illuminate the sat LED located to the right of the display f Press CALL twice to illumin
32. to step through the items in the menu one ata time The red LEDs beside each item makes it very easy to follow the menu The function of the RUN button is to return to the on line D O display from anywhere in the menu The analyzer has a built in timer which when enabled by DIP Switch 7 Bank S1 Section 4 8 returns the program to RUN mode if no button has been pressed for 10 minutes This time out has the same effect as pressing the RUN button When in the menu mode the display initially shows the current value of the parameters such as the Setpoint of the control relay while putting all of the outputs on hold The two arrow buttons are used to adjust the display value up or down To accept the new value press ENTER twice While the value on the display is being changed the relay outputs and the analog outputs remain on hold The items that appear in the operation menu are Password Sat ppm Test Calibration Temperature Status Output High Output Low In addition Model 2200D X 2 has the following items Relay A Setpoint Relay A Deadband Relay B Setpoint Relay B Deadband Alarm Relay High Page 10 Alarm Relay Low 4 8 DIP Switches 4 8 1 4 8 2 The controls which are frequently used in the normal operation of the instrument are all accessible on the control panel Some switches which are infrequently used are located on the back of the swing out board The DIP switches are scanned on RESET power up
33. tures below freezing point 32 F The electrolyte solution will crystallize at 25 30 F 6 1 3 Cleaning the sensor membrane before each calibration is recommended Use soft cloth and mild soap solution to remove material from the membrane When cleaning take care to avoid puncturing the sensor membrane Should this occur the complete sensor cartridge must be replaced 6 2 Calibration 6 2 1 Depending on the application system calibration should be performed periodically to maintain measurement accuracy Frequent checks are suggested until the operational history indicates the optimum period between checks 6 3 Reset 6 3 1 The instrument can be reset without losing calibration or any of the stored values by pressing and releasing the S9 reset button located at the bottom of the board near the center This action is equivalent to turning the power off and on 6 4 Output Hold 6 4 1 It may be useful during some system maintenance procedures to place the relay and analog outputs on hold To accomplish this simply press CALL To return to on line operation press RUN NOTE To safeguard against the operator forgetting to press RUN the instrument will automatically go back on line ten minutes after the last button was pressed provided this feature has been enabled by placing DIP switch No 7 Bank S1 in the ON position 7 0 UTILITY MENU 7 1 Utility Menu Functions 7 1 1 The Utility Menu enables authorized personnel to perform the followin
34. ult the internal non volatile memory EEPROM is FORMATTED and the factory values are loaded into it b The ESCAPE procedure is to be used if a unit is serviced for a new MCU insertion in case where the MCU was not calibrated at Water Analytics or in case of a memory loss problem when so advised by Water Analytics service support Before performing the ESCAPE procedure it is important to know that this procedure provides the option to erase all programmed values and replace them with the factory set default values This is also true for the control setpoints and deadbands then alarm settings and the analog outputs scaling Also the temperature and the D O calibration points will be set to their initial values This means that the temperature and the D O calibration must be performed after an ESCAPE procedure After that all the control alarm and scaling parameters mentioned above must be set to the user values To perform the ESCAPE proceed as follows a Turn off the power b Press and hold the RUN button for about 3 seconds while turning on the power The FAIL LED will turn on For Model 2200D X 1 only and STATUS LED will become red For Model 2200D X 2 only and status code 7 will be obtained to show that the ESCAPE procedure was just performed After the ESCAPE procedure it is necessary to do the following a Tune the analog outputs and the temperature output span to suit your particular application and lo
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