RKI Instruments 35-3001A-01 Operator'S Manual Download Page 1

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35-3001A-01

Combustible Gas Sample-Draw Detector

Operator’s Manual

Part Number: 71-0306RK

Revision: A

Released: 8/7/17

Summary of Contents for 35-3001A-01

Page 1: ...www rkiinstruments com 35 3001A 01 Combustible Gas Sample Draw Detector Operator s Manual Part Number 71 0306RK Revision A Released 8 7 17...

Page 2: ...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 depends upon...

Page 3: ...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 REPRESENTAT...

Page 4: ...Sample Draw Detector to a Controller 9 Start Up 11 Introducing Incoming Power 11 Setting the Zero Reading 11 Maintenance 12 Preventive Maintenance 12 Troubleshooting 13 Replacing Components of the Com...

Page 5: ...proper and safe operation of the 35 3001A 01 and to minimize the risk of personal injury Be sure to maintain and periodically calibrate the 35 3001A 01 as described in this manual Table 1 Specificati...

Page 6: ...ow Block Pilot LED Fail LED Sensor Flow Control Valve Pump Reset Switch Flowmeter W Interconnect Terminal Strip AMP 2 S S AMP 1 R W G OXY G Hydrophobic Filter Particle Filter B LEL IR Flowmeter Circui...

Page 7: ...mple fittings accept 1 4 in rigid tubing See the Installation section on page 7 to connect tubing to the sample fittings Particle Filter A particle filter with a tubing stub on one end is shipped with...

Page 8: ...ight corner of the main circuit board Use the pump connector to connect the pump to the main circuit board NOTE The pump is factory wired to the main circuit board See Installation on page 7 for all w...

Page 9: ...econds then release Hydrophobic Filter The hydrophobic filter is located toward the bottom left of the main circuit board The filter prevents particulates and water in the incoming gas sample from dam...

Page 10: ...located below the zero pot see Figure 3 Use a small flat blade screwdriver to turn the span pot s adjustment screw and adjust the amplifier s gas response output during the calibration procedure Turn...

Page 11: ...he 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 p...

Page 12: ...ting 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...

Page 13: ...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 6 for the arrang...

Page 14: ...gure 5 Wiring the Sample Draw Detector 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...

Page 15: ...ng 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 flowmeter bal...

Page 16: ...a display reading of 0 LEL at the controller or a reading of 100 mV at the amplifier test points Investigate significant changes in the display reading Monthly Response Test This procedure describes a...

Page 17: ...afe place Quarterly Calibration Calibrate the sample draw detector as described in Calibration on page 18 Troubleshooting The troubleshooting guide describes symptoms probable causes and recommended a...

Page 18: ...se a different demand flow regulator to determine if the original one is functioning properly 3 If necessary set the correct flow rate with the sensor flow control valve 4 If you cannot set the correc...

Page 19: ...ifier and remove the screw lock washer and flat washer Be careful not to lose any of these parts 6 Remove the old amplifier from the main circuit board 7 Install the new amplifier in the same orientat...

Page 20: ...fy that the flow rate is approximately 1 0 SCFH then close the housing door Replacing the Particle Filter 1 Turn off the controller 2 Turn off power to the controller 3 If the particle filter is insta...

Page 21: ...ow until the unit is out of low flow alarm when the reset switch is pressed and released 4 Decrease the flow very slowly by turning the sensor flow control valve s knob clockwise and verify that the l...

Page 22: ...ations Unless experience in a particular application dictates otherwise RKI Instruments Inc recommends a calibration frequency of every 3 months If an application is not very demanding for example det...

Page 23: ...alibration cylinder to set the zero reading proceed to step 5 If you verified a fresh air environment proceed to the next section Setting the Response Reading 5 Disconnect the sample tubing from the i...

Page 24: ...Manual 35 3001A 01 Sample Draw Detector 81 0002RK 01 Calibration cylinder 50 LEL hydrogen in air 34 liter steel 81 0002RK 03 Calibration cylinder 50 LEL hydrogen in air 103 liter 81 0007RK 01 Calibrat...