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Advanced Instruments GPR-2500 Скачать руководство пользователя страница 3

 
 
 
 
 

GPR-2500 / GPR-2500MO 

Oxygen Transmitter 

 

 

 
 
 
 

 
 
 
 
 
 
 
 
 
 

Owner’s Manual 

 
 

2855 Metropolitan Place, Pomona, CA 91767 USA          

♦

          Tel: 909-392-6900, Fax: 909-392-3665, e-mail: [email protected], www.aii2.com 

Содержание GPR-2500

Страница 1: ...rity 1 of full scale Pressure Inlet regulate to 5 30 psig to deliver 1 2 SCFH flow vent atmospheric Power 18 24 VDC Response Time 90 of final reading in 13 seconds Sample System None Sensitivity 0 5 of FS range Sensor Model GPR 11 32 RTS for non acid CO2 gas streams XLT 11 24 RTS for gases containing 0 5 CO2 Sensor Life GPR 11 32 RTS 32 months in air at 25ºC and 1 atm XLT 11 24 RTS 24 months in ai...

Страница 2: ...aphical LCD 2 75 x 1 375 resolution 0 1 displays real time ambient temperature and pressure Enclosure Painted aluminum 4 x 9 x 3 8 lbs Flow Sensitivity Not flow sensitive 1 2 SCFH recommended Linearity 1 of full scale Pressure Inlet regulate to 5 30 psig to deliver 1 2 SCFH flow vent atmospheric Power 18 24 VDC two wire loop Response Time 90 of final reading in 13 seconds Sample System None Sensit...

Страница 3: ...GPR 2500 GPR 2500MO Oxygen Transmitter Owner s Manual 2855 Metropolitan Place Pomona CA 91767 USA Tel 909 392 6900 Fax 909 392 3665 e mail info aii2 com www aii2 com ...

Страница 4: ...e of Contents Introduction 1 Quality Control Certification 2 Safety 3 Features Specifications 4 Operation 5 Maintenance 6 Spare Parts 7 Troubleshooting 8 Warranty 9 Material Safety Data Sheets 10 Drawings A R ...

Страница 5: ...ed thoroughly by the manufacturer prior to shipment for best performance However modern electronic devices do require service from time to time The warranty included herein plus a staff of trained professional technicians to quickly service your transmitter is your assurance that we stand behind every transmitter sold The serial number of this transmitter may be found on the inside the transmitter...

Страница 6: ...PR 2500 A 1151 E L3 PCB Assembly Main Display GPR 2500MO Software rev Ranges GPR 2500 0 1 0 5 0 10 0 25 Range GPR 2500MO 0 100 Power 12 36V DC two wire loop power NEMA 4 rated wall mount enclosure Barometric pressure compensation Test Default zero without sensor Default span 40uA GPR 2500 or 20uA GPR 2500MO Analog signal output 4 20mA full scale Calibrates with adequate span adjustment within 10 5...

Страница 7: ...re intended to operate at positive pressure regulated to between 5 30 psig Caution If the GPR 2500 is equipped with the optional H2S sample system the inlet pressure must not exceed 30 psig Outlet Pressure The sample gas vent pressure should be atmospheric Installation Oxygen Sensor DO NOT open the sensor The sensor contains a corrosive liquid electrolyte that could be harmful if touched or ingest...

Страница 8: ...g sensors should be disposed of in accordance with local regulations Troubleshooting Consult the guidelines in Section 8 for advice on the common operating errors before concluding that your transmitter is faulty Do not attempt to service the transmitter beyond those means described in this Owner s Manual Do not attempt to make repairs by yourself as this will void the warranty as per Section 10 a...

Страница 9: ... involves expanding the operating temperature range for percentage range sensors from 30 C to 50 C Electronics The signal generated by the sensor is processed by state of the art low power micro processor based digital circuitry The first stage amplifies the signal The second stage eliminates the low frequency noise The third stage employs a high frequency filter and compensates for signal output ...

Страница 10: ...void generating a vacuum on the sensor as described above during operation always select and install the vent fitting first and remove the vent fitting last Application Pressure Positive A flow indicator with integral metering valve GPR 2500 2500MO option positioned upstream of the sensor is recommended for controlling the sample flow rate between 1 5 SCFH To reduce the possibility of leakage for ...

Страница 11: ...pressure unless done gradually Avoid excessive flow rates above 5 SCFH which generate backpressure on the sensor Avoid sudden releases of backpressure that can severely damage the sensor Avoid the collection of particulates liquids or condensation collect on the sensor that could block the diffusion of oxygen into the sensor If the transmitter is equipped with an optional integral sampling pump po...

Страница 12: ...nstant 2 5 per ºC A temperature compensation circuit employing a thermistor offsets this effect with an accuracy of 5 or better and generates an output function that is independent of temperature There is no error if the calibration and sampling are performed at the same temperature or if the measurement is made immediately after calibration Lastly small temperature variations of 10 15º produce 1 ...

Страница 13: ...ure suitable for wall mounting For optimum accuracy zero and calibrate a ppm transmitter after it has been allowed to stabilize typically 24 36 hours after installation Assuming the initial zero is performed according to the procedure described herein the analyzer should not require zeroing again until the either the sensor is replaced or a change is made to the sample system or gas lines Followin...

Страница 14: ...libration Users are responsible for certified span gas cylinder regulator and flow control valve Mounting the Transmitter The GPR 2500 2500MO enclosure is 4 Wx9 Hx3 D configuration is designed to be mounted directly to any flat vertical surface wall or bulkhead plate with the appropriate screws To facilitate servicing the interior of the transmitters position it approximately 5 feet off the floor ...

Страница 15: ...f controlling the flow rate of the sample gas A flow rate of 2 SCFH or 1 liter per minute is recommended for optimum performance Caution Do not place your finger over the vent it pressurizes the sensor to test the flow indicator when gas is flowing to the sensor Removing your finger the restriction generates a vacuum on the sensor and may damage the sensor voiding the sensor warranty Procedure 1 C...

Страница 16: ... are connected to the appropriate terminals of the barrier strip as marked 6 Connect the shielding of the cable to the copper ground screw inside the junction box 7 Replace the junction box cover ensuring the gaskets are in place and tighten the four 4 screws 8 Tighten the cable gland to maintain NEMA 4 rating Hazardous Area Installation The GPR 2500 2500MO transmitters may be installed in a hazar...

Страница 17: ...he negative terminal from the power source and measure the voltage across the resistor 5 Example To convert the 4 20mA current for output to a PLC requiring 1 5V follow the above procedure using a 250Ω resistor RL Hazardous Area Operation When used in conjunction with the optional MTL 702 third party certified intrinsic safety barriers the design of the GPR 1500 2500 Series Oxygen Transmitters mee...

Страница 18: ... flow is from pin 1 to pin 2 and from pin 2 to ground through the external load To check the signal output of the 4 20mA E I integrated circuit connect an ammeter as illustrated below as the measuring device and confirm the output is within 0 1mA of 4mA Power 12 36V DC To Transmitters Terminal Strip Caution To assure proper grounding connect the 4 20mA signal output to the external device PLC DCS ...

Страница 19: ...not change the factory settings until instructed to do in this manual Integral Oxygen Sensor 1 Remove the four 4 screws securing the top section of the enclosure set them aside for reinstallation and raise the hinged top section 180º until it locks in place 2 Caution Do not remove or discard the gaskets from either the enclosure or junction box Failure to reinstall either gasket will void the NEMA...

Страница 20: ... appropriate type and length secure the sensor flow housing to a flat surface the position illustrated at the right is recommended for optimum performance 4 Remove the oxygen sensor from the bag 5 Screw the oxygen sensor into the sensor flow housing equipped with elbows and tubing finger tighten plus one half 1 2 turn to ensure a good seal from the o ring affixed to the sensor 6 Remove the shortin...

Страница 21: ... Suitable fitting and 1 8 dia metal tubing to connect from the flow meter vent to tube fitting designated SAMPLE IN on the GPR 1200 Procedure 1 With the span gas cylinder valve closed install the regulator on the cylinder 2 Open the regulator s exit valve and partially open the pressure regulator s control knob 3 Open slightly the cylinder valve 4 Loosen the nut connecting the regulator to the cyl...

Страница 22: ...forms several diagnostic system status checks termed START UP TEST as illustrated below START UP TEST ELECTRONICS PASS LOOP POWER PASS TEMP SENSOR PASS BAROMETRIC SENSOR PASS REV 1 61 Note The transmitter display defaults to the sampling mode when 30 seconds elapses without user interface 3 3 AUTO SAMPLING 10 RANGE 24 5 C 100 KPA Menu Navigation The four 4 pushbuttons located on the front of the t...

Страница 23: ...asuring range of 0 100 accordingly there is no difference between auto and manual sampling Procedure Auto Sampling 1 Access the MAIN MENU by pressing the MENU key 2 Advance the reverse shade cursor using the ARROW keys to highlight AUTO SAMPLE 3 Press the ENTER key to select the highlighted menu option 4 The display returns to the sampling mode MAIN MENU AUTO SAMPLE MANUAL SAMPLE CALIBRATE 24 5 C ...

Страница 24: ... the highlighted menu option 7 The following display appears with the range selected and oxygen concentration of the sample gas 3 3 MANUAL SAMPLING 10 RANGE 24 5 C 100 KPA 8 The display will not shift automatically Instead when the oxygen reading actually the sensor s signal output exceeds 110 of the upper limit of the current range an OVER RANGE warning will be displayed 13 00 OVERRANGE MANUAL SA...

Страница 25: ...dition exceeds 101 0 the LCD displays the OVERRANGE warning in a reversed black background This condition indicates an error introduced during the previous calibration at this point the analyzer should be calibrated Note To enhance viewing the LCD display all analyzers and transmitters are equipped with a backlit LCD display Due to the limited power availability of the GPR 2500 series of two wire ...

Страница 26: ...tter 24 hours with flowing zero gas to determine the true zero offset a stable reading evidenced by a horizontal trend on an external recording device of the system before conducting the zero calibration Note 24 hours is required for the sensor to consume the oxygen that has dissolved into the electrolyte inside the sensor while exposed to air or percentage levels of oxygen Thus for the reasons ab...

Страница 27: ...libration adjustment permitted is 60 of the lowest full scale range available which normally is 1 ppm Thus the maximum zero calibration adjustment or zero offset is 6 ppm oxygen Accordingly the transmitter s ZERO has not been adjusted prior to shipment because the factory conditions are different from the application condition at the user s installation The maximum zero calibration adjustment perm...

Страница 28: ...mbient or instrument air 20 9 or 209 000 ppm is recommended when installing a new sensor or when a certified gas is not available GPR 2500 General Service In standard configuration the GPR 2500 can be calibrated by exposing the sensor to the readily available cost effective and reliable 20 9 209 000 ppm oxygen concentration of ordinary atmospheric air or a certified span gas with an oxygen concent...

Страница 29: ...the ARROW keys to highlight MANUAL SAMPLE 3 Press the ENTER key to select the highlighted menu option 4 The following displays appears MAIN MENU AUTO SAMPLE MANUAL SAMPLE CALIBRATE 24 5 C 100 KPA CALIBRATION SPAN CALIBRATE ZERO CALIBRATE DEFAULT SPAN DEFAULT ZERO 24 5 C 100 KPA Manual Span The user must ascertain that the oxygen reading actually the sensor s signal output has reached a stable valu...

Страница 30: ...n and a 0 1 0 5 or 0 10 measuring range Select as described above Note The GPR 2500MO has a single 0 100 range and should be calibrate in accordance with the application as described above 1 Access the MAIN MENU by pressing the MENU key 2 Advance the reverse shade cursor using the ARROW keys to highlight AUTO SAMPLE 3 Press the ENTER key to select the highlighted menu option 4 The following displa...

Страница 31: ...sing the ARROW keys to highlight the desired GAS CONCENTRATION 18 Press the ENTER key to select the highlighted menu option GAS CONCENTRATION PERCENT PPM 19 The following displays appear 00 00 PRESS UP OR DOWN TO CHANGE VALUE SELECT TO SAVE ESC TO RETURN 08 00 SPAN CALIBRATION ENTER TO CALIBRATE MENU TO ABORT 20 Press the UP DOWN ARROWS to enter the first digit of the span value 21 Press the ENTER...

Страница 32: ...d proceed to sampling Sampling GPR 2500 2500MO Oxygen Transmitter requires positive pressure to flow the sample gas by the sensor to measure the oxygen concentration in a sample gas If not available see Pressure Flow section Note Prematurely zeroing the transmitter can cause the transmitter to display a negative reading in both the ZERO and SAMPLE modes Procedure Following calibration the transmit...

Страница 33: ... sensor Do not place your finger over the vent it pressurizes the sensor to test the flow indicator when gas is flowing to the sensor Removing your finger the restriction generates a vacuum on the sensor and may damage the sensor voiding the sensor warranty Assure there are no restrictions in the sample or vent lines Avoid drawing a vacuum that exceeds 14 of water column pressure unless done gradu...

Страница 34: ... regulations Procedure 1 Remove the four 4 screws securing the hinged front panel of the transmitter and raise it up 180º until it locks into position 2 Caution Do not remove or discard the gaskets from the enclosure Failure to reinstall the gasket will void the NEMA rating 3 Unscrew the knurled lock nut connecting the cable to the sensor 4 Disconnect and remove the female plug including the knurl...

Страница 35: ... XLT 11 24 4 Oxygen Sensor GPR 2500 GPR 11 120 OP Oxygen Sensor GPR 2500MO Other spare parts Item No Description FITN 1018 Connector SS 1 8 MNPT to 1 8 Tube FITN 1039 Elbow SS 1 8 A 3051 Housing Flow Adaptor BARR 1001 Intrinsic Safety Barrier MTR 1011 Meter Digital Panel LCD Backlight A 1151 E L2 PCB Assembly Main Display GPR 2500 2500MO ...

Страница 36: ...nd of its useful life Replace sensor see Section 6 Maintenance Slow response time Erratic oxygen reading No oxygen reading Liquid covering sensing membrane Presence of interference gases Unauthorized maintenance Defective electrical connection Sensor failure Gently remove with alcohol and lint free towel Consult factory replace sensor and see Section 6 Maintenance Use voltmeter and determine uA or...

Страница 37: ...lace it with a new or reconditioned one of the same or upgraded design Limitations Implied warranties including those of fitness for a particular purpose and merchantability an unwritten warranty that the product is fit for ordinary use are limited to one year from the date of shipment by manufacturer or purchase from a distributor with proof of purchase Advanced Instruments Inc will not pay for l...

Страница 38: ...l assist you in diagnosing the problem and arrange to supply you with the required parts Service from Distributors If warranty service is provided by a distributor Advanced Instruments Inc will provide all required parts under warranty at no charge to you but the distributor is an independent business and may render a service charge for their services Advanced Instruments Inc will not reimburse yo...

Страница 39: ...s to electrolyte unless otherwise noted Specific Generic Ingredients Carcinogens at levels 0 1 None Others at levels 1 0 Potassium Hydroxide Lead CAS Number Potassium Hydroxide KOH 1310 58 3 Lead Pb 7439 92 1 Chemical Synonym and Family Potassium Hydroxide KOH Base Lead Pb Metal Physical Properties Boiling Point Range 100 to 115 C Melting Point Range KOH 10 to 0 C Lead 327 C Freezing Point 40 to 0...

Страница 40: ...aterial is released Sensor is packaged in a sealed protective plastic bag check the sensor inside for electrolyte leakage If the sensor leaks inside the protective plastic bag or inside the transmitter sensor housing do not remove it without rubber or latex gloves and safety glasses and a source of water Flush or wipe all surfaces repeatedly with water or wet paper towel Use a fresh towel each tim...

Страница 41: ... plenty of cold water Seek medical attention immediately Skin Contact Wash affected area repeatedly with plenty of water Remove contaminated clothing If burning persists seek medical attention Eye Contact Flush repeatedly with plenty of water for at least 15 minutes Seek medical attention immediately Inhalation Liquid inhalation is unlikely Special Protection Information Ventilation Requirements N...

Страница 42: ...None Others at levels 1 0 Acetic Acid Lead CAS Number Acetic Acid 64 19 7 Lead Pb 7439 92 1 Chemical Synonym and Family Acetic Acid CH3CO2H Acid Lead Pb Metal Physical Properties Boiling Point Range 100 to 117 C Melting Point Range Acetic Acid not applicable Lead 327 C Freezing Point 40 to 10 C Molecular Weight Acetic Acid not applicable Lead 207 Specific Gravity 1 05 20 C Vapor Pressure 11 4 20 C...

Страница 43: ...ransmitter sensor housing do not remove it without rubber or latex gloves safety glasses and a source of water Flush or wipe all surfaces repeatedly with water or wet paper towel Use a fresh towel each time Waste Disposal Method In accordance with federal state and local regulations for battery disposal Health Hazard Information Primary Route s of Entry Ingestion eye and skin contact Exposure Limi...

Страница 44: ...ash affected area repeatedly with plenty of water Remove contaminated clothing If burning persists seek medical attention Eye Contact Flush repeatedly with plenty of water for at least 15 minutes Seek medical attention immediately Inhalation Liquid inhalation is unlikely Special Protection Information Ventilation Requirements None Eye Safety glasses Hand Rubber or latex gloves Respirator Type Not ...

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