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Summary of Contents for RKI Instruments 65-2438
- Page 1 65-2438 Carbon Monoxide Detector Operator’s Manual Part Number: 71-0343 Revision: 0 Released: 1/21/20 RKI Instruments, Inc. 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. 65-2438 CO Detector...
- 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 65-2438 CO Detector... -
Page 5: Overview
WARNING: When using the 65-2438, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 65-2438 and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the 65-2438 as described in this manual. -
Page 6: Description
The disc-shaped charcoal filter is secured to the face of the CO sensor with a rubber boot. The charcoal filter prevents interference gases (hydrogen sulfide [H S] and certain hydrocarbons) from producing false CO readings. 6 • 65-2438 CO Detector... -
Page 7: Installation
Figure 2: Outline & Mounting Dimensions 2. At the monitoring site, install the detector in the bottom conduit hub of a junction box: CAUTION: Mount the CO detector with the detector facing down (see Figure 2). 65-2438 CO Detector • 7... -
Page 8: Wiring The Co Detector To A Controller
CAUTION: Do not route power and detector wiring through the same conduit hub. The power cable may disrupt the transmission of the detector signal to the controller. 8. Connect the wires to the applicable controller terminal strip. See the controller operator’s manual and the controller’s detector head specification sheet. 8 • 65-2438 CO Detector... - Page 9 Controller Detector Terminals Black Figure 3: Wiring the CO Detector to a Controller 9. Connect the cable’s drain wire to an available chassis ground at the controller. 10. Reinstall the junction box cover. 65-2438 CO Detector • 9...
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Page 10: Startup
If the display reading is 0 ppm CO, start up is complete. The detector is in normal operation. If the display reading is not 0 ppm CO, continue with step 3. 3. Perform a zeroing operation at the controller. See the controller operator’s manual for directions. 10 • 65-2438 CO Detector... -
Page 11: Maintenance
• The detector’s zero described later in this section. reading is low 5. If the fail condition continues, enough to cause a contact RKI for further fail condition. instruction. • The detector is malfunctioning. 65-2438 CO Detector • 11... -
Page 12: Replacing Components Of The Co Detector
3. Unscrew the detector housing cap from the detector housing body. Make sure not to lose the cap gasket. 4. Unplug and remove the CO sensor with the boot and charcoal filter attached. 5. Remove the rubber boot and charcoal filter from the old sensor. 12 • 65-2438 CO Detector... - Page 13 9. Carefully plug the replacement sensor into the four-socket pattern that is located in the detector housing. 10. Make sure the cap gasket is in place and screw the detector housing cap back onto the detector housing body. 11. Turn on or plug in power to the controller. 65-2438 CO Detector • 13...
- Page 14 Although there is no particular calibration frequency that is correct for all applications, a calibration frequency of every 3 months is adequate for most CO detector applications. Unless experience in a particular application dictates otherwise, RKI Instruments, Inc. recommends a calibration frequency of every 3 months for the CO detector.
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Page 15: Calibration
It describes calibration 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 16: Parts List
33-7101RK Charcoal filter disk 65-2438 CO replacement detector assembly (includes sensor) 71-0343 65-2438 CO Detector Operator’s Manual (this document) 81-0064RK-01 Calibration cylinder, 50 ppm CO in air, 34 liter steel 81-0064RK-03 Calibration cylinder, 50 ppm CO in air, 103 liter...
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