RKI Instruments 65-2438 - Manual (Page 5)

65-2438 CO Detector • 1
Overview
This manual describes the 65-2438 carbon monoxide (CO) detector. This manual also
describes how to install, start up, maintain, and calibrate the detector when it is used with
a gas monitoring controller. A parts list at the end of this manual lists replacement parts
and accessories for the CO detector.
Specifications
WARNING: Do not use this product in a manner not specified in this instruction
manual.
Table 1 lists specifications for the CO Detector.
NOTE: The following symbol on the detector label is a caution to the user to refer to this
documentation for installation and operation instructions:
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.
Table 1: Specifications
Target Gas Carbon monoxide (CO)
Area Classification* Explosionproof for Class I, Groups B, C, and D
Temperature Code T6
Installation Category Installation Category 1. Signal level, special equipment or parts of
equipment, telecommunication, electronic, etc., with smaller
transient overvoltages than Installation Category (Overvoltage
Category) II (ref. IEC 664).
Sampling Method Diffusion
Signal Output 4 to 20 mA
Detection Range 0 to 100 ppm (parts per million)
CO Detector Signal Output 0.3 mA at 0 ppm CO nominal
2.5 mA at 300 ppm CO nominal
Response Time 90% in 30 seconds
Accuracy ± 5% of reading or ± 5 ppm CO (whichever is greater)
Operating Temperature 23°F to 104°F (5°C to 40°C)
* This area classification only applies if the detector is installed using a Killark HKB junction box and a
Killark HFC, HK2D, or HK4D cover.
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