Macurco/3M CM-21A, 12/24V AC/DC CO Detector and Controller

Macurco/3M CM-21A, 12/24V AC/DC CO Detector and Controller

Manufacturer:Macurco
Manufacturer Part#:CM-21A
Our Part#:MA-CM21A
Stock Status: Not for Sale
Retail Price:$387.53
Discontinued

Feature:

Macurco/3M

Feature:

CM-21A

Feature:

Yes

Feature:

783748814206

Feature 5

Yes

On November 15, 2011, 3M discontinued model CM-21A. The direct replacement is model CM-6. Click here to view the CM-6 product page

Features

  • CM-21A provides CO detection and automatic exhaust fan control for automotive maintenance facilities, enclosed parking garages, warehouses with forklifts, etc.
  • Selectable fan and alarm relay activation
  • 5 amp SPDT fan relay controls starters of exhaust fans
  • 1/2 amp N.O. or N.C. alarm relay connects to warning devices or control panels
  • CM-21A mounts on a standard 4x4 electrical box and becomes cover for the box
  • Supervised system: any internal detector problem will cause the fan relay to activate
  • CMS-FCK calibration kit is available. One screw allows access for calibration.

Description

The CM-21A is a low voltage, dual relay Carbon Monoxide (CO) detector and Automatic ventilation controller. The CM-21A uses a microcomputer controlled, electronic system to measure the concentration of CO and calculates when the relays should be actuated. The CM-21A is low maintenance with no periodic calibration needed and a long life (7 to 10 years) solid-state sensor.

Specifications

Power 3W from 12-24 VAC or VDC
Current 12V - 0.25 A, 24 V - 0.12 A
Size 4 1/2" x 4" x 2 18"
Connections 7 each #20 wires, 6 inches long
Mounting Box (not included) 4 x 4 electric
Fan Relay 5A, 240 VAC, pilot duty, SPDT
Fan relay actuation Selectable at 25ppm, 35ppm (default), 50ppm or 100ppm CO within 5 minutes
Alarm Relay 0.5A 200 V, 10 VA
Alarm relay actuation Selectable at 100ppm CO within 3 hours or 200ppm CO within 10 minutes
Operating Environment 0-125°F, 10 to 90% RH
The CM-21A is a carbon monoxide detector and controller with dual relays.
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
Macurco CANN50PPM, CO Calibration Gas, 17L, 50 ppm CO/Air
17 liter, 50PPM CO replacement calibration gas cylinder used to field test the Macurco carbon monoxide fixed gas detectors.
Price
$72.03
Quantity
Macurco CANN200PPM, CO Calibration Gas, 17L, 200 ppm CO/Air
17 liter, 200PPM CO replacement calibration gas cylinder used to field test the Macurco carbon monoxide fixed gas detectors.
Price
$72.03
Quantity
Macurco CANN300PPM, CO Calibration Gas, 17L, 300 ppm CO/Air
17 liter, 300PPM CO replacement calibration gas cylinder used to field test the Macurco carbon monoxide fixed gas detectors.
Price
$72.03
Quantity
Macurco CANN400PPM, CO Calibration Gas, 17L, 400 ppm CO/Air
17 liter, 400PPM CO replacement calibration gas cylinder used to field test the Macurco carbon monoxide fixed gas detectors.
Price
$72.03
Quantity

You May Also Like...

Recently Viewed Items