RKI Instruments 35-3001A-10 Operator'S Manual Download Page 1

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35-3001A-10

Oxygen/Carbon Monoxide

Sample-Draw Detector

Operator’s Manual

Part Number: 71-0558

Revision: P1

Released: 5/3/21

Summary of Contents for 35-3001A-10

Page 1: ...www rkiinstruments com 35 3001A 10 Oxygen Carbon Monoxide Sample Draw Detector Operator s Manual Part Number 71 0558 Revision P1 Released 5 3 21...

Page 2: ...eath 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...

Page 3: ...al 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 REPRES...

Page 4: ...etting the Zero Reading 17 Maintenance 18 Preventive Maintenance 18 Troubleshooting 19 Replacing Components of the Sample Draw Detector 20 Adjusting the Low Flow Setting 23 Removing the Particle Filte...

Page 5: ...rget Gases and Detection Range Oxygen 0 25 volume Carbon Monoxide 0 300 ppm Input Power 24 VDC Nominal 18 5 VDC 30 VDC Construction housing Fiberglass polyester NEMA 4X Dimensions 8 5 in H x 6 5 in W...

Page 6: ...sing the 35 3001A 10 you must follow the instructions and warnings in this manual to assure proper and safe operation of the 35 3001A 10 and to minimize the risk of personal injury Be sure to maintain...

Page 7: ...O XY T O XIC SIG PW R S Oxygen Sensor B G CO Flow Block S AMP AMP 2 S OXY R Pilot LED Sensor Flow Control Valve Fail LED Pressure Switch Adjustment Screw behind PCB Pump Reset Switch Flowmeter R 3 4 C...

Page 8: ...housing The sample fittings accept 1 4 in rigid tubing See page 13 for instructions to connect tubing to the sample fittings Particle Filter A particle filter with a tubing stub on one end is shipped...

Page 9: ...ner of the main circuit board Use the interconnect terminal strip to connect the sample draw detector to a controller Oxygen Sensor Terminal Strip The oxygen sensor terminal strip is a two point termi...

Page 10: ...e Fail LED to turn on and interrupts the signal from the detector The interrupted detector signal causes a fail condition at the controller The low flow level is factory set at 0 6 SCFH 0 1 SCFH See p...

Page 11: ...rclockwise to decrease the fresh air output CAUTION The amplifier includes an additional pot It is factory set Do not adjust it Controller and Detector Terminal Strips The controller terminal strip an...

Page 12: ...justment 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 th...

Page 13: ...ollowing 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 perfo...

Page 14: ...arrangement of the 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 poly...

Page 15: ...ert 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 ar...

Page 16: ...or s manual and the controller detector head specification sheet for the 35 3001A 10 for detector terminal strip connections specific to the controller Figure 6 Wiring the Sample Draw Detector to a Co...

Page 17: ...est will cause a low flow condition at the sample draw detector and a fail condition at the controller Be sure to put the controller into its calibration program or disable external alarms before perf...

Page 18: ...Close the housing door Maintenance This section describes maintenance procedures It includes preventive maintenance procedures This section also includes procedures to troubleshoot the sample draw det...

Page 19: ...aw Detector to a Controller on page 15 describes sensor wiring connections 4 Calibrate the sample draw detector as described in Calibration Oxygen Sensor on page 25 and Calibration CO Sensor on page 2...

Page 20: ...replacement sensor in the oxygen flow block then position the retaining plate on the two standoffs 7 Secure the retaining plate to the standoffs with the two screws you removed in step 4 8 Guide the w...

Page 21: ...eft corner of the amplifier 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 amplifie...

Page 22: ...sensor from the CO amplifier 7 Plug the CO sensor into the new CO amplifier 8 Place the sensor and amplifier in the CO sensor cavity 9 Secure the CO amplifier on the flow block with the two screws yo...

Page 23: ...nlet line 5 Turn on power to the controller 6 Turn on the controller Adjusting the Low Flow Setting NOTE Adjusting the low flow setting will cause a low flow alarm at the sample draw detector and a fa...

Page 24: ...Figure 7 Inlet Fitting with Tubing Stub CAUTION Do not pull the tubing stub downward to remove it 1 Remove the particle filter s tubing stub 2 Unscrew the outside inlet fitting tube nut from the fitti...

Page 25: ...zero reading and return to normal operation NOTE Calibrating the sample draw detector may cause alarms Be sure to put the controller into its calibration program or disable external alarms before cont...

Page 26: ...etector to draw the calibrating sample for 1 minute 4 Verify a voltmeter reading of 100 mV 2 mV 5 If necessary use the zero potentiometer on the amplifier to adjust the reading to 100 mV 2 mV 6 Discon...

Page 27: ...t sample Output mV calibrating sample fullscale X 400 100 For example with a test sample of 50 ppm and a fullscale setting of 300 ppm the correct output is 167 mV 167 mV 50 300 X 400 100 Setting the Z...

Page 28: ...rect response reading 6 Disconnect the sample tubing from the inlet line 7 Unscrew the regulator from the CO calibration cylinder Returning to Normal Operation 1 Wait approximately one minute to allow...

Page 29: ...K CO amplifier 57 1064RK 11 Oxygen amplifier 71 0558 Operator s Manual 35 3001A 10 Sample Draw Detector 81 0064RK 01 Calibration cylinder 50 ppm CO in air 34 liter steel 81 0064RK 03 Calibration cylin...

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