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Summary of Contents for RKI 65-2397RK
- Page 1 65-2397RK Transmitter Operator’s Manual Part Number: 71-0185RK Revision: A Released: 4/12/11 RKI Instruments, Inc. www.rkiinstruments.com...
- Page 2 Typical calibration frequencies for most applications are between 6 and 12 months, but can be required more often or less often based on your usage. 65-2397RK CO 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 ..............18 65-2397RK CO... -
Page 5: Overview
± 5% of reading or ± 2% of full scale (whichever is greater) WARNING: When using the 65-2397RK, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 65-2397RK and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the 65-2397RK as described in this manual. -
Page 6: Description
Strip - Test Point J-Box IR CO2 Detector Figure 1: CO Transmitter Component Location Infrared CO Detector The CO detector consists of the detector housing body, detector housing cap, cap gasket, and the plug-in sensor. 2 • 65-2397RK CO Transmitter... -
Page 7: Amplifier
The amplifier converts the electrical output from the detector to a 4 to 20 mA signal that corresponds to the detection range and transmits the signal to a gas monitoring controller. A foam gasket that orients the amplifier and keeps it from rotating is installed on the 65-2397RK CO Transmitter • 3... -
Page 8: Junction Box
4 • 65-2397RK CO Transmitter... -
Page 9: Installation
IR CO2 Detector 1 1/2-20 Thread for Calibration Cup Figure 3: Mounting the CO Transmitter At the monitoring site you select, hang or mount the junction box with the detector facing down (see Figure 3). 65-2397RK CO Transmitter • 5... -
Page 10: Wiring The Co 2 Transmitter
CAUTION: Do not route power and transmitter wiring through the same controller conduit hub. The power cable may disrupt the transmission of the transmitter signal to the controller. 11. Connect the wires to the applicable detector/transmitter terminal strip at the controller as shown in Figure 4. 6 • 65-2397RK CO Transmitter... - Page 11 Transmitter to a Controller 12. If shielded cable is used, connect the cable’s drain wire to an available chassis (earth) ground at the controller. RKI controllers typically have a ground stud that can be used to ground the cable’s drain wire.
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Page 12: Startup
The procedure below describes applying 100% nitrogen 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
NOTE: The following procedure assumes the use of a calibration kit which includes a calibration gas cylinder, a 0.5 LPM fixed flow regulator with an on/off knob, a calibration cup for the detector, and a length of sample tubing. 65-2397RK CO Transmitter • 9... - Page 14 When the controller display reading falls below the alarm setpoints, return the controller to normal operation. 10. Store the components of the calibration kit in a safe place. Biannually Calibrate the CO transmitter as described in “Calibration” on page 16 of this manual. 10 • 65-2397RK CO Transmitter...
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Page 15: Troubleshooting
6 5. If the calibration/response difficulties months. continue, contact RKI for further instruction. Some applications may require a more frequent calibration schedule. 65-2397RK CO Transmitter • 11... -
Page 16: Replacing Components Of The Co 2 Transmitter
4-20 mA output is stabilizing and may be above the controller alarm points or well below zero momentarily. RKI controllers have a one minute warmup period when the controller does not display any gas reading or give any alarm indication. - Page 17 4-20 mA output is stabilizing and may be above the controller alarm points or well below zero momentarily. RKI controllers have a one minute warmup period when the controller does not display any gas reading or give any alarm indication.
- Page 18 4-20 mA output is stabilizing and may be above the controller alarm points or well below zero momentarily. RKI controllers have a one minute warmup period when the controller does not display any gas reading or give any alarm indication.
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Page 19: Calibration Frequency
4-20 mA output is stabilizing and may be above the controller alarm points or well below zero momentarily. RKI controllers have a one minute warmup period when the controller does not display any gas reading or give any alarm indication. -
Page 20: Calibration
Allow the gas to flow for one minute and verify a reading of 100 mV (±2 mV). If necessary, use the zero pot on the amplifier to adjust the reading to 100 mV (±2 mV). Turn the regulator’s on/off knob clockwise to close the regulator. 16 • 65-2397RK CO Transmitter... -
Page 21: Setting The Response Reading
The 0-50 %volume and 0-100 %volume detectors will not display a reading in fresh air because their ranges are too large. Store the components of the calibration kit in a safe and convenient place. 65-2397RK CO Transmitter • 17... -
Page 22: Parts List
Steel calibration cylinder, 100% nitrogen, 34-liter 81-1050RK Regulator, 0.5 liter/minute; with pressure gauge and flow control knob, for 17 liter and 34 liter steel calibration cylinders 81-1117RK Calibration cup 82-0006RK Pot adjust screwdriver, for calibration 18 • 65-2397RK CO Transmitter...
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