Dwyer Instruments CMT-DN | Duct mount carbon monoxide transmitter | With 4-20 mA and 2-10 VDC outputs
The Dwyer CMT-DN is a duct-mount carbon monoxide transmitter measuring 0-125 ppm with field-selectable 4-20 mA and 2-10 VDC outputs for parking garage, loading dock and building automation applications. Genuine stock at General Tech Services LLC, UAE, with free UAE-wide shipping. Request a quote in under a minute - call +971 6 5436933.
Part No. CMT-DN
Product Overview
The Dwyer CMT-DN is part of the Series CMT Carbon Monoxide Transmitters, designed to accurately detect and transmit low concentrations of carbon monoxide in parking garages, loading docks and similar applications. The CMT-DN uses a duct-mount configuration for in-duct CO monitoring.
The transmitter provides field-selectable 4-20 mA and 2-10 VDC outputs, making it compatible with most common building management and automation controllers. It measures carbon monoxide from 0-125 ppm with an accuracy of ±2.5% of reading and ±1% repeatability.
The CMT-DN typically responds in less than 60 seconds to a 90% step change and can be field calibrated using internal potentiometers. Set points and other configuration settings are password protected. A single transmitter can cover an area of up to 7,500 ft².
The CMT-DN-D provides the same core transmitter configuration with an integral display.
Key Benefits
- Duct-mount configuration for in-duct CO monitoring
- Measures carbon monoxide from 0-125 ppm
- Field-selectable 4-20 mA or 2-10 VDC outputs
- ±2.5% of reading accuracy
- ±1% repeatability
- Response time under 60 seconds for a 90% step change
- Field calibration using internal potentiometers
- Password-protected set points and configuration settings
- Coverage of up to 7,500 ft²
- CMT-DN-D version available with an integral display
- Genuine Dwyer stock with free UAE-wide shipping
Who This Product Is Best For
- Parking garages requiring duct-based carbon monoxide monitoring
- Loading docks requiring in-duct CO detection
- Building automation systems using 4-20 mA or 2-10 VDC CO signals
- HVAC and ventilation control systems
- Installations requiring password-protected set points
- Applications requiring a compact electrochemical CO transmitter
How to Specify & Commission It
- Confirm the application requires duct-mounted carbon monoxide monitoring and select a suitable installation location.
- Install the CMT-DN in the duct according to the manufacturer's installation instructions.
- Select either the 4-20 mA or 2-10 VDC output and connect the 24 VDC/VAC power supply.
- Wire the selected analog output to the building management or control system.
- Configure the required set points and field calibrate the transmitter using the internal potentiometers.
- Verify the CO readings and controller response before placing the system into service.
Frequently Asked Questions
What range does the Dwyer CMT-DN measure?
The CMT-DN measures carbon monoxide from 0-125 ppm.
What outputs are available?
The transmitter provides field-selectable 4-20 mA and 2-10 VDC outputs.
How accurate is the CMT-DN?
The specified accuracy is ±2.5% of reading with ±1% repeatability.
How quickly does the transmitter respond?
The typical response time is less than 60 seconds for a 90% step change.
Does the CMT-DN have an integral display?
No. The CMT-DN does not include an integral display. The CMT-DN-D is the corresponding version with an integral display.
Can the CMT-DN be field calibrated?
Yes. Field calibration can be performed using the internal potentiometers.
What is the coverage area of the CMT-DN?
A single unit can cover up to 7,500 ft², depending on the application and installation conditions.
What type of sensor does the CMT-DN use?
The transmitter uses an electrochemical carbon monoxide sensor with a typical expected life of 2 to 3 years.
Is genuine stock available with UAE shipping?
Yes. Genuine Dwyer stock is available from General Tech Services LLC with free UAE-wide shipping. Call +971 6 5436933 for pricing and current availability.
Request a Quote Today
For pricing or to place an order, contact General Tech Services LLC.
Call +971 6 5436933 | www.generaltechshop.ae
