Environment Projects
Description
Features
? Real-time detect CO2 level of indoor environment
? NDIR infrared CO2 sensor with Self-Calibration and up to 15 years lifetime
? Humidity and temperature detection optional
? Combined temperature and humidity sensor provide the highest accuracy in full range
? Wall mounting with the external sensor probe with the higher accuracy of measurements
? Backlit LCD display option can display CO2 measurement and temperature+ RH measurements
? Providing one or three 0~10VDC or 4~20mA or 0~5VDC analog outputs
? Modbus RS485 communication interface makes usage and test more convenient
? Smart structure with the simple installation and wiring
? CE-Approval
Typical Applications
? HVAC systems
? In BAS to detect the CO2 level and the data transmittance
? Ventilation control system
Specifications
CO2 Sensor Non-Dispersive Infrared Detector (NDIR)
Measurement Range 0~2000ppm (default)
0~5000ppm selectable
Accuracy ±50ppm + 3% of reading @22℃(72℉)
Stability <2% of full scale over the life of the sensor
Calibration Self-calibration system
Response Time <5 minutes for 90% step change at low duct speed
Non-linearity <1% of full scale @22℃(72℉)
Duct Air Velocity 0~450m/min
Pressure Dependence 0.135% of reading per mm Hg
Temperature Dependence 0.2% of full scale per oC
Warm up time 2 hours (first time)
2 minutes (operation)
Temperature & Humidity Sensor Temperature Relative Humidity
Sensing element: Band-gap-senor Capacitive humidity sensor
Measuring range 0℃~50℃(32℉~122℉) (default) 0 -100%RH
Accuracy ±0.4℃ (0℃~50℃) ±3%RH (20%-80%RH)
Display resolution 0.1℃ 0.1%RH
Stability ±0.1℃per year ±1%RH per year
General Data
Power supply 24VAC/24VDC
Consumption 1.8 W max. ; 1.0 W avg.
LCD display White backlit LCD display CO2 measurement
or CO2 + temperature& humidity measurements
Analog output 1 or 3 X analog outputs
0~10VDC(default) or 4~20mA (selectable by jumpers)
0~5VDC (selected at place the order)
Mo
Read More
Tongdy
CO2 sensor
Address: 3-3-5/F IN-DO MANSION, No.48-jia Zhichun Road, Haidian District,
Beijing, Beijing
China, 100098
Tel: 86-15101027950
Fax: 86-10-58731275
