Greystone CMD5B Carbon Monoxide Transmitter

Product Id : 4299


Greystone CMD5B Carbon Monoxide Transmitter utilizes a superior electrochemical sensor for reliability and accuracy in even the most critical applications. The standard product features a 2-wire loop-powered output. Optionally, the device may be designed with an alarm relay that works in 3-wire sourcing mode and/or with Modbus communications.
Applications: Industrial and laboratory, HVAC, and Duct Units.


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Country : United States

Product Description

Greystone CMD5B Carbon Monoxide Transmitter uses an electrochemical sensor to monitor the carbon monoxide level and outputs a field-selectable 4-20mA or voltage signal
Features Of Greystone Carbon Monoxide Transmitter

  • 0-300 ppm CO range Electrochemical sensing element 4-20 mA output
  • 2 wire (looped powered) or 3 wire Powered by either AC or DC source Optional onboard relay
  • Easy to calibrate in the field

Additional Information

Weight 1.5 kg
Manufacturer Greystone
Model No CMD5B4
Target Gases Carbon Monoxide (CO)
Range 0-100, 150, 300, 400, or 500 PPM (Selectable)
Accuracy_1 ±5 PPM or 5% of reading (whichever is greater)
Resolution_1 10 bit PWM (±0.4 ppm)
Display .Displays PPM and menu parameters 1 PPM resolution, 35 mmW x 15 mm H (1.4” x 0.6”) Alpha-numeric 2 line X 8 character with backlight
Operating Temperature -20˚ to 50˚C
Operating Humidity 15 to 95% RH
Sample Method Diffusion or flow through sample tube for duct mounted models
Stability <5% signal loss/year
Status LED indicator 2 color (red/green) on front pane
Response Time <35 seconds for 90% step change
Buzzer .85 db @ 10 feet
Power Supply 24 Vdc ± 20% or 24 Vac ± 10% (non-isolated half-wave rectied)
Output 4-20 mA (Active), 0-5 or 0-10 Vdc (Selectable)
Weight 500 grms


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