RKI Instruments 35-3001A-12-02 Operator'S Manual Download Page 1

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35-3001A-12-02

Carbon Dioxide/Hydrogen Sulfide

Sample-Draw Detector

Operator’s Manual

Part Number: 71-0497

Revision: P1

Released: 6/7/19

Summary of Contents for 35-3001A-12-02

Page 1: ...www rkiinstruments com 35 3001A 12 02 Carbon Dioxide Hydrogen Sulfide Sample Draw Detector Operator s Manual Part Number 71 0497 Revision P1 Released 6 7 19...

Page 2: ...riodic calibration and maintenance of the detector is essential for proper operation and correct readings Please calibrate and maintain this detector regularly Frequency of calibration depends upon th...

Page 3: ...eplacement costs local repair costs transportation costs or contingent expenses incurred without our prior approval THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY AND ALL OTHER WARRANTIES AND REPRESENTATIO...

Page 4: ...he Zero Reading 16 Maintenance 17 Preventive Maintenance 17 Troubleshooting 18 Replacing Components of the Sample Draw Detector 19 Adjusting the Low Flow Setting 22 Removing the Particle Filter s Tubi...

Page 5: ...n and periodically calibrate the 35 3001A 12 02 as described in this manual Table 1 Specifications Target Gases and Detection Range Carbon Dioxide 0 5 000 ppm parts per million Hydrogen Sulfide 0 100...

Page 6: ...W R S IG G B IR CO2 Sensor PCB IR CO2 S ensor inside block IR CO2 Flow B lock R S AMP OXY AMP 2 S Pilot LED Fail LED Pressure S witch Adjustment S crew behind PCB Pump Reset Switch AMP 2 S G B S AMP 1...

Page 7: ...d tubing See the Installation section on page 12 to connect tubing to the sample fittings Particle Filter A particle filter with a tubing stub on one end is shipped with the instrument but it is not f...

Page 8: ...sample draw detector Pump Connector The pump connector is the two point connector below the oxygen terminal strip in the upper right corner of the main circuit board Use the pump connector to connect...

Page 9: ...on occurs the pump will be shut off To reset the low flow condition and start the pump again press and hold the pump reset switch for about 2 seconds then release Hydrophobic Filter The hydrophobic fi...

Page 10: ...s adjustment screw and adjust the amplifier s gas response output during the calibration procedure Turn the adjustment screw clockwise to increase the span output and counterclockwise to decrease the...

Page 11: ...stment screw and adjust the amplifier s zero output during the start up and calibration procedures Turn the adjustment screw clockwise to increase the zero output and counterclockwise to decrease the...

Page 12: ...ng when you select the mounting site Is there enough room to open the housing door and make wiring and tubing connections at the bottom of the housing Make sure there is sufficient room to perform sta...

Page 13: ...ng components 4 Connect a length of sample tubing to the other side of the particle filter and route it to the sampling area 1 4 O D rigid polypropylene Teflon or flexible polyurethane tubing may be u...

Page 14: ...insert to seal the connection between the tubing and the inlet fitting 3 Hand tighten the nut on the exhaust fitting so the ferrules clamp on the tubing If the tube nut is removed see Figure 7 for the...

Page 15: ...shielded cable is used connect the cable s drain wire to an available chassis earth ground at the controller RKI controllers typically have a ground stud that can be used to ground the cable s drain...

Page 16: ...rforming this test 7 Verify that the incoming sample line is not leaking To test the sample line press and hold the reset switch and plug the open end of the sample line with your thumb If the flowmet...

Page 17: ...enance This section describes maintenance procedures It includes preventive maintenance procedures This section also includes procedures to troubleshoot the sample draw detector replace components of...

Page 18: ...le Draw Detector to a Controller on page 14 describes sensor wiring connections 4 Calibrate the sample draw detector as described in Calibration IR CO2 Sensor on page 24 and Calibration H2S Sensor on...

Page 19: ...nsor PCB 6 Verify that you are using the correct replacement sensor then plug the sensor into the IR CO2 sensor PCB 7 Place the sensor and sensor PCB in the IR CO2 sensor cavity 8 Secure the sensor PC...

Page 20: ...Sensor 1 Turn off the controller 2 Turn off power to the controller 3 Open the housing door of the sample draw detector 4 Unscrew the two screws in the upper right and lower left corners of the H2S fl...

Page 21: ...ock with the two screws you removed in step 5 10 Reconnect the wires coming from the H2S amplifier to the AMP 2 position on the detector amp terminal strip Connect the red wire to the terminal Connect...

Page 22: ...nal alarms before performing this test The factory set low flow setting is 0 6 SCFH 0 1 To adjust the low flow setting 1 Use the sensor flow control valve to set the flow to 0 6 SCFH Turn the valve s...

Page 23: ...ome out with the tube nut Be careful not to lose the O ring that may come out with the tubing stub If you do lose the O ring or if it is damaged see Parts List on page 28 for the spare part number 3 P...

Page 24: ...necessary Calibration IR CO2 Sensor This section describes how to calibrate the IR CO2 sensor of the sample draw detector It includes procedures to prepare for calibration set the zero reading set the...

Page 25: ...etting the Response Reading 1 Screw the regulator into the carbon dioxide calibration cylinder 2 Connect the sample tubing from the demand flow regulator to the sample draw detector s inlet line 3 All...

Page 26: ...s on the H2S amplifier Plug the positive lead into the red amplifier test point plug the negative lead into the black amplifier test point 6 Use the following formula to determine the correct test poi...

Page 27: ...pan potentiometer on the amplifier to adjust the reading to match the correct response reading 6 Disconnect the sample tubing from the sample draw detector s inlet fitting 7 Reconnect the incoming sam...

Page 28: ...7 Operator s Manual 35 3001A 12 02 Sample Draw Detector 81 0070RK 01 Calibration cylinder 2000 ppm CO2 in N2 34 liter steel 81 0070RK 03 Calibration cylinder 2000 ppm CO2 in N2 103 liter 81 0076RK 01...

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