Description
The CMD series carbon monoxide detector uses an electrochemical sensor to monitor the carbon monoxide level and outputs a factory calibrated 4-20 mA or 0-10 Vdc (Please specify on any order), or optional Modbus signal. Optionally, the device may be configured with an alarm relay.
Features
- 0-300 ppm CO range
- Electrochemical sensing element
- 4-20 mA or 0-10Vdc output, 2 wire (looped powered) or 3 wire
- Powered by either AC or DC source
- Optional on board relay
- Easy to calibrate in the field
Specifications
- MEASUREMENT Electrochemical
- SAMPLE METHOD Diffusion
-
MEASUREMENT RANGE
Analog: 0-300 ppm
Modbus: 0-500 ppm -
ACCURACY ±5 ppm or ±5% of reading (whichever is greater)
0 to 50°C (32 to 122°F), 15 to 95 %RH - AGENCY APPROVALS Sensor is UL Recognized for ASNI/UL-2034 and UL-2075, E240671
- OPERATING CONDITIONS -20 to 50°C (-4 to 122°F), 15 to 90 %RH, 0.9-1.1 atm
- STABILITY <5% signal loss/year
- RESPONSE TIME <35 seconds for 90% step change
- LIFE EXPECTANCY 7 years in air
- TYPICAL COVERAGE AREA 700m2 (7500ft2 ) or 15m (50ft) radius
- WIRING CONNECTIONS Screw terminal block (14 to 22 AWG)
- ENCLOSURE ABS, UL94-V, IP65 (NEMA 4X)
- ENCLOSURE DIMENSIONS 71mm W x 104mm H x 48mm D (2.8” x 4.1” x 1.9”)
- COUNTRY OF ORIGIN Canada
-
NON-RELAY MODEL
Power Supply: 24 Vdc ±20% or 24 Vac ± 10% (non-isolated half-wave rectified)
Consumption: 20 mA max
Output Signal: 4-20 mA loop-powered or 0-10 Vdc (factory calibrated)
Output Drive Capability @ 24 Vdc: Current - 550Ω max, Voltage - 10,000Ω min -
RELAY MODEL
Power Supply: 24 Vdc ±20% or 24 Vdc ±10% (non-isolated half-wave rectified)
Consumption: 40 mA max
Output Signal: 4-20 mA sourcing or 0-10 Vdc (factory calibrated)
Output Drive Capability @ 24 Vdc:, Current - 550Ω max, Voltage - 10,000Ω min - Relay Contacts: Form C contacts (N.O. and N.C.), 5 Amps @ 250 Vac, 5 Amps @ 30 Vdc
- Relay Trip Point: 25, 60 and 150 ppm - jumper selectable
- Relay Hysteresis: 3% or 9 ppm