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35-3001-06H-DIL

Hydrogen/Oxygen

Sample-Draw Detector

Operator’s Manual

Part Number: 71-0346

Revision: A

Released: 8/7/17

Summary of Contents for 35-3001-06H-DIL

Page 1: ...www rkiinstruments com 35 3001 06H DIL Hydrogen Oxygen Sample Draw Detector Operator s Manual Part Number 71 0346 Revision A Released 8 7 17...

Page 2: ...th 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 up...

Page 3: ...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 REPRESENT...

Page 4: ...g the Zero Reading 12 Maintenance 13 Preventive Maintenance 13 Troubleshooting 14 Replacing Components of the Sample Draw Detector 16 Adjusting the Low Flow Setting 17 Removing the Particle Filter s T...

Page 5: ...sample through the dilution fitting Because of this it is important when calibrating the detector head to apply the calibration gas to the sample line inlet if a sample line is installed In addition b...

Page 6: ...001 06H DIL and to minimize the risk of personal injury Be sure to maintain and periodically calibrate the 35 3001 06H DIL as described in this manual Maximum Recommended Inlet Exhaust Line Length for...

Page 7: ...ution Fitting LEL Flow Block LEL Sensor W AMP AMP 2 S Sensor Flow Control Valve Fail LED Pilot LED Pump Reset Switch Pressure Switch Adjustment Screw behind PCB Flowmeter W B G Interconnect Terminal S...

Page 8: ...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 but it...

Page 9: ...t board See the Installation section on page 8 for all wiring procedures related to the sample draw detector Pump Connector The pump connector is the two point connector below the oxygen terminal stri...

Page 10: ...hobic 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 damaging the flow and detecti...

Page 11: ...to the detector On the other end five pins extend from the sensor and plug into the socket connector The connector allows you to replace the sensor without disconnecting the wiring Four leads extendin...

Page 12: ...lect 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 start up maintena...

Page 13: ...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 used RKI Instruments Inc recommends using either 1 4 O D x 1 8 I...

Page 14: ...ng 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 5 for the arrangement of the fitting components 4 Route...

Page 15: ...lded 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 wire...

Page 16: ...itch and plug the open end of the sample line with your thumb If the sensor flowmeter indication drops noticeably the instrument goes into a low flow alarm and the Fail LED turns on the incoming sampl...

Page 17: ...hecks 1 Verify that the Pilot LED is on 2 Verify that the flowmeter indicates a flow rate of approximately 0 8 SCFH If necessary use the sensor flow control valve to adjust the flow rate to 0 8 SCFH T...

Page 18: ...kit in a safe place 10 Exhale into the sample draw detector s inlet line 11 Stop exhaling into the sample line then verify that the oxygen reading at the controller decreased 12 If the reading does no...

Page 19: ...inues contact RKI Instruments Inc for further instruction Slow or No Response Difficult or Unable to Calibrate Symptoms The sensor responds slowly or does not respond during the monthly response test...

Page 20: ...or to warm up for 5 minutes before you continue 12 Calibrate the replacement sensor as described in Calibration LEL Sensor on page 19 Replacing the Oxygen Sensor 1 Turn off the controller 2 Turn off p...

Page 21: ...tub 3 Install the new particle filter onto the tubing stub Be sure the arrow on the particle filter is pointing toward the inlet fitting 4 Reinstall the tubing routed to the sampling area 4 If the par...

Page 22: ...n the reset switch is pressed and released 5 Decrease the flow very slowly using the inlet line flowmeter s adjustment valve and verify that the low flow alarm is 1 0 SCFH 0 1 at the inlet line flowme...

Page 23: ...te for most sample draw detector applications Unless experience in a particular application dictates otherwise RKI Instruments Inc recommends a calibration frequency of every 3 months If an applicatio...

Page 24: ...egulator from the zero air calibration cylinder Setting the Response Reading 1 Screw the fixed flow regulator into the hydrogen calibration cylinder 2 Attach the gas bag tubing to the regulator on the...

Page 25: ...on the zero air calibration cylinder NOTE A demand flow regulator cannot be used for calibration 2 Turn the regulator s on off knob clockwise to open it Fill the gas bag 3 Turn the regulator s on off...

Page 26: ...r s inlet fitting 11 Empty the gas bag 12 Reconnect the incoming sample line to the inlet line 13 Unscrew the fixed flow regulator from the calibration cylinder Returning to Normal Operation 1 Wait 1...

Page 27: ...rticle filter 61 0155RK Hydrogen sensor plug in type LEL range 71 0346 Operator s Manual 35 3001 06H DIL Sample Draw Detector 81 0002RK 01 Calibration cylinder 50 LEL hydrogen in air 34 liter steel 81...

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