This Carbon Dioxide transmitter, using Non Dispersive Infrared (NDIR) sensing technology with a patented automatic background calibration (ACDL) mechanism, is designed to measure the CO2 concentration in such typical applications as regular office space and HVAC ventilation duct.
Features
NDIR sensing technology
• Gold plated sensor for long term stability
• Automatic background re-calibration algorisms
• Threshold alarm relay output
• 15+ years life expectance
• Selectable 0-10V and 4-20mA
• AC/DC adaptable power supply
Spec.
Range (ppm): 0-1000, 0-2000 (default), 0-5000
Temp. Dependency: 0.2% FS/℃
Long Term Stability: < 2%
Accuracy: ±30ppm ± 5% of Measured Value
Non-linearity: <1% of FS（25ºC ）
Calibration: ACDL Self Re-calibration
Sampling Interval: 3S
Step Response Time (90%): 60S
Warm Up Time: < 120S， 10min. to max. accuracy.
Operating Temperature: 0ºC - 50ºC
Operating Humidity: 0 - 95% RH (Non-condensing)
Storing Temperature: -20ºC-70ºC
Output Signal: 0-10V/2-10V (100 Ω Impedance)
4-20mA/0-20mA
Power Supply: 18-30Vdc, 20-24Vac
Max. Power Consumption: 100mW
Working Current: Avg. 25ma/h, Peak 350ma(10ms)
Sensing Coverage: 100 m²
Order Code
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Code
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Description
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GSCO21
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Space CO2 Sensor
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GSCO22
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Duct CO2 Sensor
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