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Summary of Contents for RKI Instruments 35-3000RK-OXY
- Page 1 35-3000RK-OXY Oxygen Sample-Draw Detector Operator’s Manual Part Number: 71-0071RK Revision: P1 Released: 7/18/02 RKI Instruments Inc. 1855 Whipple Road Hayward, CA 94544 PH: 800-754-5165 Fax: 510-441-5650...
- Page 2 Product Warranty RKI Instruments, Inc., warrants gas alarm equipment sold by us to be free from defects in materials, workmanship, and performance for a period of one year from date of shipment from RKI Instruments, Inc. Any parts found defective within that period will be repaired or replaced, at our option, free of charge.
- Page 3 Parts List ..............19 35-3000RK-OXY Sample-Draw Oxygen Detector • 3...
- Page 4 Overview This instruction manual describes the 35-3000RK-OXY sample-draw oxygen detector. This manual also describes how to install, start up, maintain, and calibrate the sample-draw detector when using it with a gas monitoring controller. A parts list at the end of this manual lists replacement parts and accessories for the sample-draw oxygen detector.
- Page 5 Use the two conduit hubs on the bottom of the housing to make wiring connections. An aluminum subpanel is mounted to the interior of the housing. The sample-draw detector’s internal components are mounted to the subpanel. 35-3000RK-OXY Sample-Draw Oxygen Detector • 5...
- Page 6 Use a flat-blade screwdriver to adjust the bypass valve. NOTE: The bypass valve allows fine adjustments of the flow rate. For a wider range of adjustment, use the flow adjust potentiometer (see Figure 1.) 6 • 35-3000RK-OXY Sample-Draw Oxygen Detector...
- Page 7 The sensor leads are soldered to the male connector. Sensor leads Two color-coded leads extend from the connector. The leads allow you to connect the oxygen sensor to the main circuit board. 35-3000RK-OXY Sample-Draw Oxygen Detector • 7...
- Page 8 flow condition, the relay interrupts the signal from the sensor. The interrupted sensor signal causes a fail condition at the controller. NOTE: No relay contacts are available for use in controlling an external device. 8 • 35-3000RK-OXY Sample-Draw Oxygen Detector...
- Page 9 Are the flowmeter and status lights visible? 7.3 in. 6.5 in. 4.0 in. 3/4 in. conduit hub (total of 2 hubs) Note: The housing is 4.25 in. deep. Figure 3: Mounting the Sample-Draw Oxygen Detector 35-3000RK-OXY Sample-Draw Oxygen Detector • 9...
- Page 10 Connect the cable to the sample-draw detector’s interconnect terminal strip as shown in Figure 4. Close and latch the housing door of the sample-draw detector. 10 • 35-3000RK-OXY Sample-Draw Oxygen Detector...
- Page 11 Figure 4: Wiring the Sample-Draw Oxygen Detector to a Controller Connect the cable shield to an available chassis ground. The grounding screw on one of the controller’s grounded conduit hubs is an example of a chassis ground. 35-3000RK-OXY Sample-Draw Oxygen Detector • 11...
- Page 12 If the display reading is 20.9%, start up is complete. The sample-draw oxygen detector is in normal operation. If the display reading is not 20.9%, continue with step 3. Perform a zeroing operation at the controller. See the controller instruction manual for directions. 12 • 35-3000RK-OXY Sample-Draw Oxygen Detector...
- Page 13 NOTE: If the reading does not decrease, calibrate the sample draw detector as described in the “Calibration” section on page 17. Quarterly Calibrate the sample-draw detector as described in the “Calibration” section on page 17. 35-3000RK-OXY Sample-Draw Oxygen Detector • 13...
- Page 14 Calibrate the sample-draw detector as described in the Calibration section on page 17. If the fail condition continues, replace the oxygen sensor as described later in this section. If the fail condition continues, contact RKI Instruments, Inc., for further instruction. Slow or no response/difficult or unable to calibrate Symptoms •...
- Page 15 If you cannot set the correct flow rate, check the sample line for obstructions or kinks. If the calibration/response difficulties continue, replace the oxygen sensor as described later in this section. If the calibration/response difficulties continue, contact RKI Instruments, Inc., for further instruction. Replacing Components of the Oxygen Sample-draw Detector This section includes procedures to replace the sensor, filter, and ferrules.
- Page 16 If the low flow alarm is set too low, turn the low flow potentiometer slightly clockwise. Repeat steps 3 and 4 if necessary. Use the flow adjust potentiometer (VR1) to set the flow to 1.5 SCFH. Make sure the sample draw detector’s Fail light is off. 16 • 35-3000RK-OXY Sample-Draw Oxygen Detector...
- Page 17 Allow the sample-draw detector to draw out any residual gas in the gas collection bag. Disconnect the gas bag sample tubing from the inlet fitting, then close the tubing clamp. Unscrew the dispensing valve from the zero air calibration cylinder. 35-3000RK-OXY Sample-Draw Oxygen Detector • 17...
- Page 18 NOTE: If you do not allow the oxygen reading to return to normal, then unwanted alarms may occur. 13. Verify that the controller display reading stabilizes at 20.9%. 14. Store the components of the calibration kit in a safe and convenient place. 18 • 35-3000RK-OXY Sample-Draw Oxygen Detector...
- Page 19 30-0610RK Pump 33-0163RK Filter (Balston DFU9933-05-DQ) 65-0601RK Oxygen sensor (plug-in type) 71-0071RK Operator’s Manual, 35-3000RK-OXY Oxygen Sample-Draw Detector 81-0076RK-01 Zero air calibration cylinder (34 liter) 81-0076RK-03 Zero air calibration cylinder (103 liter) 81-0078RK Calibration cylinder (100% Nitrogen; 17 liter) 81-0078RK-01 Calibration cylinder (100% Nitrogen;...
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