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35-3001A-07-03

Methane/Hydrogen Sulfide

Sample-Draw Detector

Operator’s Manual

Part Number: 71-0391

Revision: 0

Released: 8/8/17

Содержание 35-3001A-07-03

Страница 1: ...www rkiinstruments com 35 3001A 07 03 Methane Hydrogen Sulfide Sample Draw Detector Operator s Manual Part Number 71 0391 Revision 0 Released 8 8 17...

Страница 2: ...death Periodic calibration and maintenance of the detector is essential for proper operation and correct readings Please calibrate and maintain this detector regularly Frequency of calibration depend...

Страница 3: ...val or replacement 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 REPRE...

Страница 4: ...tting the Zero Reading 12 Maintenance 13 Preventive Maintenance 13 Troubleshooting 15 Replacing Components of the Sample Draw Detector 16 Adjusting the Low Flow Setting 19 Removing the Particle Filter...

Страница 5: ...injury Be sure to maintain and periodically calibrate the 35 3001A 07 03 as described in this manual Table 1 Specifications Target Gases and Detection Range Methane 0 100 volume Hydrogen Sulfide 0 10...

Страница 6: ...B H2S Flow Block IR CH4 S ensor inside block Sensor Current 148mA Sensor Flow Control Valve Pilot LED Fail LED Flowmeter Pump Reset Switch G B AMP 1 AMP 2 S W G OXY S R AMP OXY AMP 2 This End To Inlet...

Страница 7: ...pt 1 4 in rigid tubing See the Installation section on page 8 to connect tubing to the sample fittings Particle Filter A particle filter with a tubing stub on one end is shipped with the instrument bu...

Страница 8: ...n of the 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...

Страница 9: ...flow condition 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 hy...

Страница 10: ...pan pot 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 decre...

Страница 11: ...t s adjustment 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 decre...

Страница 12: ...following 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 per...

Страница 13: ...he fitting 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...

Страница 14: ...ropriate 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...

Страница 15: ...r to a Controller 9 If 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 gro...

Страница 16: ...e press and hold the reset switch and plug the open end of the sample line with your thumb If the flowmeter ball drops to the bottom of the flowmeter the incoming sample line is not leaking 8 Remove y...

Страница 17: ...wise to decrease the flow 3 Verify a display reading of 0 vol for the methane channel and 0 ppm for the hydrogen sulfide channel at the controller Investigate significant changes in the display readin...

Страница 18: ...d flow regulator 5 Remove the voltmeter leads from the IR CH4 amplifier 6 Plug the voltmeter leads into the test points on the H2S amplifier Plug the positive lead into the red test point plug the neg...

Страница 19: ...trol valve 2 If you cannot set the correct flow rate check the sample lines for obstructions or kinks 3 Verify that the sensor wiring is correct and secure Wiring the Sample Draw Detector to a Control...

Страница 20: ...emove the four screws that secure the IR CH4 sensor PCB then lift the IR CH4 sensor PCB and sensor off of the flow block There is a gasket at the bottom of the flow block Be sure the gasket stays in p...

Страница 21: ...and place it into normal operation 12 Allow the sample draw detector to warmup for 5 minutes 13 Calibrate the IR CH4 sensor as described in Calibration IR CH4 Sensor on page 21 Replacing the H2S Sens...

Страница 22: ...the sensor from the H2S amplifier 7 Plug the H2S sensor into the new H2S amplifier 8 Place the sensor and amplifier in the H2S sensor cavity 9 Secure the H2S amplifier on the flow block with the two...

Страница 23: ...he low flow setting will cause a low flow alarm at the sample draw detector and a fail alarm at the controller Be sure to put the controller into its calibration program or disable external alarms bef...

Страница 24: ...2 Unscrew the outside inlet fitting tube nut from the fitting body The tubing stub should come out with the tube nut Be careful not to lose the O ring that may come out with the tubing stub If you do...

Страница 25: ...libration IR CH4 Sensor This section describes how to calibrate the IR CH4 sensor of the sample draw detector It includes procedures to prepare for calibration set the zero reading set the response re...

Страница 26: ...calibration cylinder Setting the Response Reading 1 Screw the regulator into the methane calibration cylinder 2 Connect the sample tubing from the demand flow regulator to the sample draw detector s i...

Страница 27: ...st points 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...

Страница 28: ...se the span 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 inco...

Страница 29: ...K CH4 Infrared CH4 sensor plug in type vol range 71 0391 Operator s Manual 35 3001A 07 03 Sample Draw Detector 81 0013RK 01 Calibration cylinder 50 volume methane in nitrogen 34 liter steel 81 0013RK...

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