Macurco CM-6/CM-12 Manual (Rev-1.1) Eng
1 General Safety Information
The following instructions are intended to serve as a guideline for the use of the Macurco CM-6 and CM-12 Carbon Monoxide
Detector. This manual will refer to these devices as CM-xx unless content is specific to a model. This manual is not to be
considered all-inclusive, nor is it intended to replace the policy and procedures for your facility. If you have any doubts about
the applicability of the equipment to your situation, consult an industrial hygienist or call Technical Support at 1-844-325-3050.
1.1 General Description
The Macurco CM-xx is a dual relay Carbon Monoxide (CO) detector, controller, and transducer. Available in both a low voltage
(CM-6) and line voltage (CM-12) option. The CM-xx has selectable 4-20 mA output, buzzer and digital display options. It is an
electronic detection system used to measure the concentration of Carbon Monoxide and provide feedback and automatic
exhaust fan control to help reduce CO concentrations in parking garages, maintenance facilities or other commercial
applications. The CM-xx is a low-level meter capable of displaying in the range 0-200 ppm (parts per million) of Carbon
monoxide. The CM-xx is factory calibrated and 100% tested for proper operation but can also be calibrated in the field.
1.2 List of warnings and Cautions
Each person using this equipment must read and understand the information in this user manual
before use. Use of this equipment by untrained or unqualified persons or use that is not in
accordance with this user manual, may adversely affect product performance.
Use only for monitoring the gas which the sensor and monitor is designed to detect. Failure to
do so may result in exposures to gases not detectable and cause serious injury or death. For
proper use, see supervisor or user manual, or contact Technical Support at 1-844-325-3050.
This equipment may not function effectively below 0°F or above 125°F (-18°C or above 52°C).
Using the detector outside of this temperature range may adversely affect product performance.
This detector helps monitor for the presence and concentration level of a certain specified
airborne gas. Misuse may produce an inaccurate reading, which means that higher levels of the
gas being monitored may be present and could result in overexposure and cause serious injury
or death. For proper use, see supervisor or User manual, or contact Technical Support at 1-844-
325-3050.
High voltage terminals (120/240 VAC) are located within this detector, presenting a hazard to
service technicians. Only qualified technicians should open the detector case and service the
internal circuits. Ensure power is de-energized from the detector relays prior to servicing the
unit. Failure to do so may result in electrical shock.
Do not disassemble unit or attempt to repair or modify any component of this instrument. This
instrument contains no user serviceable parts, and substitution of components may impair
product performance.
Using a certified gas with a concentration other than the one listed for this detector when
conducting a calibration or calibration verification test (bump test) will produce inaccurate
readings. This means that higher levels of the gas being monitored may be present and could
result in overexposure. For proper use, see supervisor or User manual, or contact Technical
Support at 1-844-325-3050.
REV – 1.1
WARNING
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