Gas and Specialty Sensors

GMD20, GMW86 Series



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GMD20, GMW86 Series

Vaisala Carbon Dioxide Sensors GMD20, GMW86 Series

Vaisala Carbon Dioxide Sensors

 

The Vaisala GMW86 and GMD20 Series Carbon Dioxide Sensors with transmitter capabilities are specially designed for demand-controlled ventilation in building automation systems, BAS. The CO2 transmitters use the silicon-based CARBOCAP gas sensor. The simple structure and reference measurement capabilities make these single-beam, dual-wavelength NDIR CO2 sensors extremely stable and reliable. The temperature and flow dependence is negligible. Models are available with a temperature output.


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QtyModelDescriptionIn StockList PriceInternet Price
GMD20 CO2 DUCT SENSOR ANALOG OUTPUT In Stock925.00740.00
GMD20D CO2 DUCT SENSOR ANALOG OUTPUT RELAY DISPLAY In Stock999.00799.20
GMR20 RELAY OPTION FOR GMW21 OR GMD20 INFO196.00156.80
GMW83 CO2 WALL TEMP TRANSMITTER 0-10V INFO483.00386.40
GMW83A CO2 WALL TEMP TRANSMITTER 0-10V LED INFO551.00440.80
GMW83D CO2 WALL TEMP TRANSMITTER 0-10V DISPLAY INFO585.00468.00
GMW83DRP CO2 WALL RH/ TEMP TRANSMITTER 0-10V DISPLAY INFO722.00577.60
GMW83RP CO2 WALL RH/ TEMP TRANSMITTER 0-10V INFO655.00524.00
GMW83T CO2 WALL TEMP TRANSMITTER 0-10V STPT INFO495.00396.00
GMW86P CO2 WALL TEMP TRANSMITTER In Stock483.00386.40
GMW86PT CO2 WALL TEMP TRANSMITTER W/SETPOINT INFO464.00371.20
GMW93 CO2 WALL TEMP XMTR VOLT OUTPUT INFO1,150.00920.00
GMW93D CO2 WALL TEMP XMTR VOLT OUTPUT DISPLAY INFO1,150.00920.00
GMW93RD CO2 WALL TEMP HUM XMTR VOLT OUTPUT DISPLAY INFO1,300.001,040.00
GMW94 CO2 WALL TEMP XMTR 4-20 OUT INFO1,150.00920.00
GMW94D CO2 WALL TEMP XMTR 4-20 OUT DISPLAY INFO1,150.00920.00
GMW94RD CO2 WALL TEMP HUM XMTR 4-20 OUT DISPLAY INFO1,300.001,040.00
GMW95 CO2 WALL TEMP MODBUS/BACNET INFO1,150.00920.00
GMW95D CO2 WALL TEMP MODBUS/BACNET DISPLAY INFO1,150.00920.00
GMW95R CO2 WALL TEMP HUM MODBUS/BACNET INFO1,300.001,040.00
GMW95RD CO2 WALL TEMP HUM MODBUS/BACNET DISPLAY INFO1,300.001,040.00

Accessories

No accessories found
Features
  • Silicon-based NDIR sensor
  • Excellant long-term stability
  • Negligible temperature dependence
  • Easy installation
  • Five-year recommended calibration interval
  • Duct sensor measurement in the duct
Specifications

Supply Voltage:

GMD20:24 VAC @ 2.5 VA or 24 VDC @ 104 mA

GMW86:24 VAC @ 1 VA or 18-35 VDC @ 45 mA

Accuracy:2% of reading ±30 ppm

Signal Output:

GMD20:0/4-20 mA @ 600Ω, and 0-10 VDC @ 1kΩ minimum

GMW86:Temp. 1000Ω 385 RTD, 32° to 122℉ (0° to 50℃)

 :Humidity 4-20 mA or 0-10 VDC

Linearity:±1% FS

Stability:<5% FS for 5 years

Air Velocity:0-2000 fpm (0-10 mps)

Measurement Range:0-2000 ppm

Warm Up Time:15 minutes

Response Time:1 minute

Relay Type:SPST, 50 VAC/VDC @ 0.5 A

Relay Setpoint:1000 ppm (adjustable with calibration software

Operating Temperature:23° to 113°F (-5° to 45°C)

Operating Humidity:0% to 85% non-condensing

Enclosure Rating:NEMA 1, ABS Plastic

Weight:

Wall:0.25 lb (0.11 Kg)

Duct:0.75 lb (0.34 Kg)

Approvals:CE

Warranty:2 years

Certifications