Macurco/3M CM-4, Analog CO Transducer for Control Units

Special Order - May Require 2-3 Weeks to Ship
(see our Special Orders policy)

The Macurco CM-4 replaces the discontinued SS102HC-1 and CS102A. It is the only current unit that will work with the SS103 control panels.

Carbon Monoxide Transducer for use with the Macurco SS103-3A, SS103-10A (DC Voltage)or DVP-120 (4-20 mA) control panels, Building Automation Systems and any controller that accepts analog input.
Microcomputer controlled operation.
Dual output (4-20 mA Constant Current Loop or DC Voltage), internal switch.
Re-calibration in the field with optional kit.
Every unit factory calibrated.
Operational status LED light

Internal combustion engines (cars, forklifts, etc.) produce carbon monoxide (CO), an odorless, colorless and deadly gas. Operators of enclosed parking garages, warehouses, maintenance facilities, etc., can protect people by either ventilating, continuously or installing automatic fan control systems like the Macurco SS103 & DVP-120 Systems.

Automatic fan control systems in parking garages normally have a short payback, because fans operate 1 to 2 hours a day rather than 24 hours a day. The CM-4 is powered from Macurco or other controllers, and provides a linear output to the controller.

The CM-4 conforms to the specifications of most building codes, ASHRAE standards, and occupational health regulations. Typical codes require that CO exposure be 1:35 ppm or less on the TWA (Time Weighted Average) basis over 8 hours, and 2:200 ppm or less on the STEL (Short Term Exposure Limit) basis over a one hour period. Typical coverage is 5000 sq. ft. (464.5 sq. meters) per unit.

The CM-4 uses a long life solid-state sensor (7 – 10 year), which does not require regular re-calibration. The CM-4 replaces the SS102HC-1.

CO Range	0-250 ppm
Output Range	1.00-2.88 VDC or 4-24 mA for 0-250 ppm of CO
Output Type	DC Voltage or 4-20 mA constant current loop
Required Power Supply	12-24 VDC or 12-24 VAC
Power Consumption	2.2 W @ 24 VDC
Operating Temperature Range	0-125°F
Size	4.5 x 4.5 x 2.1 inches
Weight	1 pound
Color	Gray

Macurco CM-4 Cut Sheet

Macurco CM-4 Operating Instructions

Accessories designed for use with this product - To add any of these accessories to your order, simply fill in the quantity you want and click the large "Add to Cart" button above

Product Name/Description	Price	Quantity

	Macurco/3M SS103-3A, Automatic Exhaust Fan Controller	$480.30
	The 3M/Macurco SS103-3A is an exhaust fan controller, which, in conjunction with CM-4 Carbon Monoxide detectors, provide automatic controls to ensure a safe environment in parking garages or maintenance facilities.

	Macurco/3M CMS-FCK, CO Field Calibration Kit for Single Point Calibration	$350.28
	The CMS-FCK Macurco carbon monoxide field calibration kit is used to test or calibrate 3M/Macurco Fixed Gas Detectors requiring single point calibration (CM-4, CM-2B, CM-21A, CM-1B and SS102HC)

	Macurco/3M CANN50PPM, CO Calibration Gas, 17L, 50 ppm CO/Air	$68.49
	17 liter, 50PPM CO replacement calibration gas cylinder used to field test the 3M/Macurco carbon monoxide fixed gas detectors.

	Macurco/3M CANN200PPM, CO Calibration Gas, 17L, 200 ppm CO/Air	$68.49
	17 liter, 200PPM CO replacement calibration gas cylinder used to field test the 3M/Macurco carbon monoxide fixed gas detectors.

	Macurco/3M CANN300PPM, CO Calibration Gas, 17L, 300 ppm CO/Air	$68.49
	17 liter, 300PPM CO replacement calibration gas cylinder used to field test the 3M/Macurco carbon monoxide fixed gas detectors.

	Macurco/3M CANN400PPM, CO Calibration Gas, 17L, 400 ppm CO/Air	$66.17
	17 liter, 400PPM CO replacement calibration gas cylinder used to field test the 3M/Macurco carbon monoxide fixed gas detectors.

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