Environment Projects
Description
Features
Special used to real-time detect CO2 level in air ducts.
? NDIR infrared CO2 sensor inside with Self-Calibration and up to 15 years lifetime
? High accuracy humidity and temperature detection&display optional
? With LCD or without LCD selectable
? Providing one dry contact output with presetting the setpoint
? Modbus RS485 communication interface optional
? Wireless of ZigBee protocol optional
? Smart structure with easier wire connection through the external pipe
? Provide four types: wall mounted, duct mounted, split and plug & play
? For plug & play type, special design a photosensor inside to detect
day/night and change the working mode of the CO2 generator
? For duct probe type, special the 180° rotatable fastness position of the
probe can be used in two directions of air flow.
? Replaceable filter in the probe and extendable probe length
? Design the convenient and easier buttons for operation
? CE-Approval
Specifications
CO2 Sensor Non-Dispersive Infrared Detector (NDIR)
Measurement Range 0～2,000ppm (default)
0～5,000ppm (preset)
Accuracy ±40ppm + 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
Warm up time 2 hours (first time)
2 minutes (operation)
Split CO2 sensor 2 meter cable connection between the senor and the controller
Temperature & Humidity Detection&Display (optional) Temperature Relative Humidity
Sensing element: Band-gap-senor Capacitive humidity sensor
Measuring range -20℃~60℃ 0 -100%RH
Accuracy ±0.5℃ (20~40℃) ±4.5%RH (25℃, 15%-85%RH)
Display resolution 0.1℃ 0.1%RH
Stability ±0.1℃per year ±1%RH per year
General Data
Power supply 24VAC/24VDC or 100VAC~240VAC
Consumption 1.8 W max. ; 1.0 W avg.
LCD display Display CO2 measure
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
