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Summary of Contents for RKI Instruments 65-2400RK
- Page 1 65-2400RK Combustible Gas Transmitter Operator’s Manual Part Number: 71-0060RK Revision: C Released: 1/31/13 www.rkiinstruments.com...
- Page 2 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. 65-2400RK Combustible Gas Transmitter...
- Page 3 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.
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Page 4: Table Of Contents
Parts List ..............16 65-2400RK Combustible Gas Transmitter... -
Page 5: Overview
90% in 45 seconds WARNING: When using the 65-2400RK, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 65-2400RK and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the 65-2400RK as described in this manual. -
Page 6: Description
Flame Arrestor The porous flame arrestor allows the target gas to diffuse into the detector assembly and contact the sensing elements. The flame arrestor also contains sparks within the detector. 2 • 65-2400RK Combustible Gas Transmitter... -
Page 7: Amplifier
(see Figure 1). The test points produce a 100 to 500 mV output that is proportional to the transmitter’s 4 to 20 mA output. Use the test points and a voltmeter to measure the transmitter’s output during the start-up and calibration procedures. 65-2400RK Combustible Gas Transmitter • 3... -
Page 8: Junction Box
Use the junction box’s two mounting holes to mount the combustible gas transmitter to a vertical surface at the monitoring site. Use the cover on the front of the junction box to access the interior of the junction box. 4 • 65-2400RK Combustible Gas Transmitter... -
Page 9: Installation
At the monitoring site, use #10 screws through the junction box’s two mounting holes to secure the junction box to a vertical surface. CAUTION: Mount the combustible gas transmitter with the detector facing down (see Figure 2). 65-2400RK Combustible Gas Transmitter • 5... -
Page 10: Wiring The Combustible Gas Transmitter
CAUTION: Do not route power and transmitter wiring through the same conduit hub. The power cable may disrupt the transmission of the transmitter signal to the controller. Connect the wires to the applicable transmitter terminal strip at the controller as shown in Figure 3 below. 6 • 65-2400RK Combustible Gas Transmitter... - Page 11 10. If shielded cable is used, connect the cable’s drain wire to an available chassis ground at the controller. RKI controllers typically have a ground stud that can be used to ground the cable’s drain wire. 65-2400RK Combustible Gas Transmitter • 7...
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Page 12: Startup
The procedure below describes applying zero emission air, usually called zero air, using a calibration kit that includes a calibration cup, calibration gas, sample tubing, and a fixed flow regulator with an on/off knob. RKI Instruments, Inc. recommends using a 0.5 LPM (liters per minute) fixed flow regulator. -
Page 13: Maintenance
It describes the test using a calibration kit that includes a calibration cup, calibration gas, sample tubing, and a fixed flow regulator with an on/off knob. RKI Instruments, Inc. recommends using a 0.5 LPM (liters per minute) fixed flow regulator. - Page 14 Reinstall the junction box cover. When the controller display reading falls below the alarm setpoints, return the controller to normal operation. Quarterly Calibrate the combustible gas transmitter as described in “Calibration” on page 14 of this manual. 10 • 65-2400RK Combustible Gas Transmitter...
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Page 15: Troubleshooting
4. If the calibration/response difficulties • Transmitter requires continue, contact RKI for further frequent calibration. instruction. Note: Under “normal” circumstances, the transmitter requires calibration once every three months. Some applications may require a more frequent calibration schedule. 65-2400RK Combustible Gas Transmitter • 11... -
Page 16: Replacing Components Of The Combustible Gas Transmitter
Unscrew and remove the two screws that secure the amplifier to the junction box. The screws are at the top left and bottom right of the amplifier. Remove the amplifier. 12 • 65-2400RK Combustible Gas Transmitter... -
Page 17: Calibration Frequency
3 to 6 months is adequate for most combustible gas transmitter applications. 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 detection in a clean, temperature controlled environment where combustible gas is not normally present and calibration 65-2400RK Combustible Gas Transmitter •... -
Page 18: Calibration
It describes the test using a calibration kit that includes a calibration cup, calibration gas, sample tubing, and a fixed flow regulator with an on/off knob. RKI Instruments, Inc. recommends using a 0.5 LPM (liters per minute) fixed flow regulator. -
Page 19: Setting The Response Reading
When the display reading falls below the alarm setpoints, return the controller to normal operation. Verify that the controller display reading decreases and stabilizes at 0% LEL. Store the components of the calibration kit in a safe and convenient place. 65-2400RK Combustible Gas Transmitter • 15... -
Page 20: Parts List
61-0140RK Combustible gas detector 65-2400RK Combustible gas transmitter (includes detector and amplifier; specify target gas when ordering) 71-0060RK 65-2400RK Combustible Gas Transmitter Operator’s Manual (this document) 81-0007RK-01 Calibration cylinder (15% LEL Hexane; 34-liter) 81-0012RK-01 Calibration cylinder (50% LEL Methane; 34-liter)
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