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- Contact Person : Ms. Tian Maggie
- Company Name : Tongdy Control Technology Co., Ltd.
- Tel : 86-10-58731276,58731277,58731278
- Fax : 86-10-58731275
- Address : Beijing,Beijing,3-3-5F, IN-DO Mansion, No.Jia 48 ZhiChun Road Haidian District, Beijing. China
- Country/Region : China
- Zip : 100098
0~10V/4~20mA CO2 transmitter for duct mounting
CO2 Sensor | Non-Dispersive Infrared Detector (NDIR) | |
Measurement Range | 0~2,000ppm (default) 0~5000ppm/0~20,000ppm (selectable in the order) | |
Accuracy | ±40ppm + 3% of reading @22°C(72°F) | |
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°C | |
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 | 24 hours (first time) 10 minutes (operation) | |
Temperature & Humidity Sensor | Temperature | Relative Humidity |
Sensing element: | Band-gap-senor | Capacitive humidity sensor |
Measuring range | -20°C~60°C(default) 0~60°C selectable in order | 0 -100%RH |
Accuracy | ±0.4°C (25°C) | <±3%RH (25°C, 40%-60%RH) |
Display resolution | 0.1°C | 0.1%RH |
Stability | ±0.1°Cper 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 | 1x0~10VDC or 4~20mA output for CO2 3x 0~10VDC or 4~20mA outputs for CO2+ Temperature +RH The voltage output or current output can be selectable by jumpers | |
Modbus RS485 Interface | 19200bps, 15KV antistatic protection. | |
Operation conditions | -0°C~50°C(32~122°F); 0~95%RH, non condensing | |
Storage conditions | -20~70°C(-40~158°F) | |
Net weight | 320g | |
IP class | IP54 | |
Standard Approval | CE-Approval | |
Features
1 Special used to real-time detect CO2 level in air ducts.
2 NDIR infrared CO2 sensor inside with Self-Calibration and up to 15 years lifetime
3 Humidity and temperature detection optional
4 Combined temperature and humidity sensor provide the highest accuracy in full range
5 LCD display option can display CO2 measurement and temperature+ RH measurements
6 3-color backlit LCD indicates the CO2 level more clearing and alarm function
7 Providing one or three 0~10VDC or 4~20mA analog outputs
8 Modbus RS485 communication interface makes usage and test more convenient
9 Smart structure and attractive housing provide you a unique operation feeling
10 Simple and skillful design and installation with a take-down and replacing filter to provides dust-proof protection
11 Special a 180° rotatable fastness position for the probe can change the direction of air detection.
12 All housing and probe are IP54 class
13 CE-Approval
0~10V/4~20mA CO2 transmitter for duct mounting