Dwyer Instruments SERIES CMT Catalog Page

2X 5/16 [7.94]

[101.6]

3-31/64

[88.5]

[76.2]

4-9/16

[115.89]

2-3/4

[69.85]

1-31/64 [37.70]

1-27/64

[36.12]

Series

CMT

Carbon Monoxide Transmitter

Current/Voltage Output, 125 PPM Range

3-1/2 [88.90]

6 [152.40]

Wall Duct

The Series CMT Carbon Monoxide Transmitter accurately detects and transmits

low concentrations of carbon monoxide inside a parking garage or loading dock. Transmitters can be ordered in wall mount or duct mount configurations. Universal current and voltage outputs are field selectable and match most common building management controllers. Optional relay and alarm buzzers are available on the wall mount models to directly connect to a warning light or exhaust fan. The Series CMT can be field calibrated using internal potentiometers. Software settings such as set points for optional relay outputs are password protected.

Model CMT-WN CMT-WN-WP CMT-WR-WP CMT-WN-D CMT-DN CMT-DN-D

Configuration

Wall NEMA 4X Wall NEMA 4X Wall Wall Duct Duct

External Display

No No No Yes No Yes

Alarm/Buzzer

No No Yes No No No

146

1-3/32

[27.69]

SPECIFICATIONS Range: 0 to 125 PPM CO. Accuracy: ±2.5% of reading. Repeatability: ±1% of reading. Response Time: Less than 60 seconds typical for 90% step change. Ambient Operating Temperature: -4 to 104°F (-20 to 40°C). Ambient Operating Humidity: 15 to 90% non-condensing. Power Requirements: 24 VDC/VAC at 100 mA. Internal Display: Two line 8-digit alphanumeric LCD. Sensor: Electrochemical (2 to 3 year expected life typical). Output: Current/voltage: 4 to 20 mA and 2 to 10 VDC; Optional relay: (2) SPDT 1

Amp dry contact; Buzzer: 85 dB @ 1 foot.

Coverage Area: 7500 square feet (max). Weight: 5.7 oz (161.6 g).

1-19/32 [40.31]