Summary of Contents for RKI Instruments 35-3001A-02
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35-3001A-02 Oxygen Sample-Draw Detector Operator’s Manual Part Number: 71-0308RK Revision: A Released: 8/8/17 www.rkiinstruments.com...
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Typical calibration frequencies for most applications are between 3 and 6 months, but can be required more often or less often based on your usage. 35-3001A-02 Oxygen Sample-Draw Detector...
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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.
WARNING: When using the 35-3001A-02, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 35-3001A-02 and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the 35-3001A-02 as described in this manual.
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The flowmeter is mounted to the right side of the flowmeter circuit board. You can see it through the window in the door. A ball in the flowmeter column indicates the flow rate to the sensor. The 4 • 35-3001A-02 Oxygen Sample-Draw Detector...
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The leads extending from the sensor are factory wired to the oxygen sensor terminal strip. 35-3001A-02 Oxygen Sample-Draw Detector • 5...
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The black test point in the upper left corner is the negative (-) test point and the red test point to the left of the zero and span pots is the positive (+) test point. 6 • 35-3001A-02 Oxygen Sample-Draw Detector...
Are the flowmeter and status LEDs visible? 6.50 Ø .30 x .50 (4X) M OUNTING 1.13 4.00 Pilot Fail Sample Drawing Gas Detector 8.88 8.50 35-3001 www.rkiinstruments.com 4.50 NOTE: Housing is 4.3 inches deep Figure 4: Outline and Mounting Dimensions 35-3001A-02 Oxygen Sample-Draw Detector • 7...
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.D. or 1/4” O.D. x 0.170” I.D. tubing based on your length requirements. See “Specifications” on page 1 for maximum tubing lengths based on tubing size.
Push 1/4” O.D. rigid polypropylene or rigid Teflon sample tubing into the fitting until it stops. Flexible polyurethane tubing may be used with an appropriate insert. RKI Instruments, Inc. recommends using either 1/4” O.D. x 1/8” I.D. or 1/4” O.D. x 0.170” I.D. tubing based on your length requirements.
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Connect the wires to the applicable detector/transmitter terminal strip at the controller as shown in Figure 5. Refer to the controller operator’s manual and the controller detector head specification sheet for the 35-3001A-02 for detector/terminal strip connections specific to the controller.
Plug the voltmeter leads into the test points on the amplifier. Plug the positive lead into the red (+) test point; plug the negative lead into the black (-) test point. Verify a voltmeter reading of 434 mV (± 2 mV). 35-3001A-02 Oxygen Sample-Draw Detector • 11...
Open the housing door, then plug the voltmeter leads into the test points on the amplifier. Plug the positive lead into the red (+) test point; plug the negative lead into the black (-) test point. 12 • 35-3001A-02 Oxygen Sample-Draw Detector...
If the fail condition continues, replace the sensor(s) as described in “Replacing Components of the Sample-Draw Detector” on page 14. If the fail condition continues, contact RKI Instruments, Inc. for further instruction. Slow or No Response/Difficult or Unable to Calibrate Symptoms •...
If you cannot set the correct flow rate, check the sample line for obstructions or kinks. If the calibration/response difficulties continue, replace the sensor as described later in this section. If the calibration/response difficulties continue, contact RKI Instruments, Inc. for further instruction. Replacing Components of the Sample-Draw Detector This section includes procedures to replace the oxygen sensor, amplifier, hydrophobic filter, and particle filter.
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11. Turn on the controller and place it into normal operation. 12. Allow the sample-draw detector to warmup for 5 minutes. 13. Calibrate the sample-draw detector as described in “Calibration” on page 18 of this manual. Replacing the Hydrophobic Filter Turn off the controller. 35-3001A-02 Oxygen Sample-Draw Detector • 15...
NOTE: The pressure switch adjustment screw is accessible through a circular cutout in the flowmeter circuit board. Slowly turn the pressure switch adjustment screw counterclockwise just until the sample-draw detector goes into low flow alarm. 16 • 35-3001A-02 Oxygen Sample-Draw Detector...
“Parts List” on page 20 for the spare part numbers. Push the new tubing up through the inlet fitting tube nut and replace the ferrule set and the O- ring, if it came out, in the orientation shown in Figure 6. 35-3001A-02 Oxygen Sample-Draw Detector • 17...
Although there is no particular calibration frequency that is correct for all applications, a calibration frequency of every 3 months is adequate for most oxygen sample draw detector applications. Unless experience in a particular application dictates otherwise, RKI Instruments, Inc. recommends a calibration frequency of every 3 months for the oxygen sample draw detector.
Remove the voltmeter leads from the amplifier test points. Close the housing door. Follow the instructions in the controller’s operator’s manual to exit the calibration mode. Store the components of the calibration kit in a safe and convenient place. 35-3001A-02 Oxygen Sample-Draw Detector • 19...
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