GPR-2500A Oxygen Transmitter Owner’s Manual 2855 Metropolitan Place, Pomona, CA 91767 USA ♦ Tel: 909-392-690
10 Calibration & Accuracy Single Point Calibration: As previously described the galvanic oxygen sensor generates an electrical current sen
11 Example: As illustrated by Graph A any error, play in the multi-turn span pot or the temperature compensation circuit, during a span a
12 ¾ Pressure & Flow: As described above. ¾ Moisture & Particulates: Prevent water and/or particulates from entering the sample system
13 Gas Connections: The GPR-2500A with its standard flow through configuration is designed for positive pressure samples and requires connections
14 7. Assure the keyway registration of the female plug on the cable and male receptacle on the sensor match up. 8. Push the female plug (inclu
15 Electrical Connections: Electrical connections to the GPR-2500A are made at two different locations within the transmitters. Power requirements
16 The 4-20mA signal output, power fail, alarm relay contacts, and, output connections are made to a terminal block mounted on a PCB located in th
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18 Installing the Oxygen Sensor The GPR-2500/2500MO ppm Oxygen Transmitter is normally equipped with an integral oxygen sensor. It has been tested
19 6. Remove the shorting device (looped wire) from the receptacle located at the rear of the sensor. Minimize the time the sensor is exposed to
2 Table of Contents Introduction 1 Quality Control Certification 2 Safety 3 Features & Specifications 4 Operation 5 Maintenance 6 Spar
20 Span Gas Preparation One of the most accurate, reliable and inexpensive means of calibrating the GPR-2500A is to expose the sensor to the 20.9
21 Establishing Power to the Electronics: Once the two wires of the shielded cable are properly connected to the terminals inside the junction box
22 Main Menu: Access the MAIN MENU by pressing the MENU key: MAIN MENU AUTO SAMPLE MANUAL SAMPLE CALIBRATE 24.5 C
23 Procedure - Manual Sampling: 1. Access the MAIN MENU by pressing the MENU key. 2. Advance the reverse shade cursor using the ARROW keys to h
24 Zero Calibration In theory, the oxygen sensor produces no signal output when exposed to an oxygen free sample gas. However, the transmitter wil
25 6. Press the ENTER key to calibrate or MENU key to abort and return to SAMPLING mode. 0.000 ZERO CALIBRTION ENTER TO CALIBRATE MENU TO ABO
26 Span Calibration Maximum drift from calibration temperature is approximately 0.11% of reading per °C. The transmitter has been calibrated at th
27 7. 1/8” male NPT to tube adapter fitting to connect the 1/8” dia. metal tubing from the flow meter vent to the mating male quick disconnect fi
28 11. Regulate the pressure and control the flow rate as described above at 5-30 psig and a 2 SCFH flow rate. 12. Allow the span gas to flow for
29 PASSED CALIBRATION OR FAILED CALIBRATION 25. If the calibration is successful, the transmitter returns to the SAMPLING mode a
3 1 Introduction Your new oxygen transmitter incorporated an advanced electrochemical sensor specific to oxygen along with state-of-the-art digit
30 5. For sample gases under positive pressure the user must provide a means of controlling the inlet pressure between 5-30 psig and the flow of
31 6 Maintenance Generally, cleaning the electrical contacts or replacing filter elements is the extent of the maintenance requirements of this t
32 6. Unscrew the old sensor from the sensor flow housing and dispose of it according to local regulations for batteries. 7. Remove the oxygen s
33 9. Screw the knurled lock nut attached the cable onto to the male connector attached to the sensor, tighten finger tight plus ¼ turn. 10. Conn
34 8 Troubleshooting Symptom Possible Cause Recommended Action Reading does not reflect expected values Sensor was not calibrated at the p
35 9 Warranty Policy What is covered: Any defect in material and workmanship from normal use in accordance with the Owner’s Manual. This warra
36 to province. What is not covered: This warranty does not cover installation; defects resulting from accidents; damage while in transit to our
37 10 Material Safety Data Sheet ( MSDS ) Product Identification Product Name Oxygen Sensor Models CAD, GPR, PSR, SAF, 67013 Synonyms Galvan
38 General Requirements Use Potassium Hydroxide - electrolyte, Lead - anode Handling Rubber or latex gloves and safety glasses Storage Indefini
39 Eye Electrolyte is corrosive and eye contact could result in permanent loss of vision. Skin Electrolyte is corrosive and skin contact could r
4 2 Quality Control Certification Date: Customer: Order No.: Pass Model: GPR-2500
40 Product Identification Product Name Oxygen Sensor Models XLT Synonyms Galvanic Fuel Cell, Electrochemical Transducer Manufacturer Analytic
41 Fire and Explosion Data Flash and Fire Points Not applicable Flammable Limits Not flammable Extinguishing Method Not applicable Special Fir
42 Medical Conditions Aggravated None Carcinogenic Reference Data NTP Annual Report on Carcinogens - not listed; LARC Monographs - not listed;
5 3 Safety General This section summarizes the essential precautions applicable to the GPR-2500A Oxygen Transmitter. Additional precautions speci
6 Maintenance Serviceability: Except for replacing the oxygen sensor, there are no parts inside the transmitter for the operator to service. Only
7 5 Operation Principle of Operation The GPR-2500A oxygen transmitter incorporates a variety of advanced galvanic fuel cell type sensors. The tr
8 Pressure & Flow All electrochemical oxygen sensors respond to partial pressure changes in oxygen. The inlet pressure must always be higher
9 To avoid erroneous oxygen readings and damaging the sensor: ¾ Do not place your finger over the vent (it pressurizes the sensor) to test the fl
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