




Dwyer Instruments CMT200 | Carbon Monoxide Transmitter | 0 to 200 PPM CO | 4 to 20 mA/2 to 10 VDC outputs.
In subterranean parking garages, car repair shops, or mechanical rooms, the Model CMT200 Carbon Monoxide Transmitter offers a field-selectable current or voltage output that is proportionate to the gas concentration. When calibrated properly, an electrochemical sensor that can be replaced in the field can yield accurate data for up to four years. The on board span and zero potentiometers, the Model A-507A calibration adaptor, and the Model GCK-200CO-2000CO2 calibration gas can all be used for field calibration.

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- Specifications
- Features
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Accuracy | +/-2% FS at the time of calibration |
Approvals | CE |
Connection | Electrical: Removable terminal block, includes two PG11 and one PG 16 knockouts for conduit fitting |
Coverage Area | 5000 to 7000 sq. ft. typical |
Housing | UV resistant polycarbonate |
Humidity | Limits: 15 to 90% RH constant 0 to 99% RH intermittent |
Maximum operating temperature | -4 to 122°F (-20 to 50°C) |
Output | Drift: <5% per year in air |
Output | Jumper selectable 4 to 20 mA (loop powered) or 2 to 10 V (load must be >50 k¢ž¦) |
Power | Current Output: 18 to 28 VDC Voltage Output: 18 to 28 VDC/VAC, reverse polarity protected |
Range | 0 to 200 ppm |
Response Time | <45 s. to 90% of final value |
Sensor Type | Field replaceable electrochemical, 4 year typical lifespan |
Storage Temperature | For best sensor life, 32 to 68°F (0 to 20°C) |
Weight | 0.28 lb (0.11 kg) |
- Selectable outputs of voltage or current in the field.
- Sensor that is replaceable.
- Kits for field calibration.
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