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CM-1B Data Sheet



Carbon Monoxide Meter And Alarm

DESCRIPTION / OPERATION

The CM-1B is a Carbon Monoxide Meter, Alarm and Controller. It is an all electronic system using a microprocessor to measure the quantity of Carbon Monoxide (CO) and calculate the danger level, which is a combination of level of CO and time exposure.

A three digit lighted display on the CM-1B shows the current level of CO between 0 and 250 parts per million (PPM). The CM-1B continuously monitors the air, and updates the display every 2 1/2 minutes.

The microprocessor analyzes this data and compares it to the 10% Hemoglobin concentration, which is stored in the computer memory. If the danger level is exceeded, the alarm sounds and the alarm relay closes. The fan relay actuates if the average level of CO exceeds 35 PPM for 5 minutes.

FEATURES:

DIGITAL DISPLAY: Shows the current level of CO: 0-250 PPM LOW VOLTAGE OPERATION: Can be powered from most alarm control panels. 120 VAC U.L. LISTED POWER SUPPLY AVAILABLE. THE CM-1 CAN BE FIELD CALIBRATED. TEST SWITCH: The test switch provides a mode for the system to test itself. RELAYS: Close at 35 PPM after 5 minutes and at alarm level.

SPECIFICATIONS:

POWER: 3 Watts
VOLTAGE: 10 to 26 VAC or VDC
SIZE: 5 X 6 X 11/2 inches
SHIPPING WEIGHT: 2 lbs.
COLOR: Beige
ALARM SOUND LEVEL: 85db at 10 feet
ALARM RELAY RATING: 0.5 Amp, 200V, 1OVA
FAN RELAY RATING: 5 Amp, 240V
ALARM SETTING: Equivalent to 10% CO in Hemoglobin.
ACCURACY: 10% at 50 PPM CO
SENSOR MAINTENANCE: Not required

NOTE:
The CM-1 B Alarm actuation curve is a time weighted exposure that approximates the dosage to produce 10% of Carbon Monoxide in the blood hemoglobin. This CM-1 B curve meets both the OSHA STEL (Short Term Exposure Limit) of 200 PPM for 15 minutes, and the OSHA TWA (Time Weighted Average) of 35 PPM over 8 hours.


OPTIONS:

CMP: U.L. 120 VAC outlet mounted power supply w/ 10-foot cord.

CM-1 B-FCK: Field Calibration Kit.


MOUNT THE CM-1 B IN A CENTRAL LOCATION ON A WALL OR COLUMN







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