co2 transmitter with adown probe, China co2 transmitter with adown probe Supplier

co2 transmitter with adown probe - TGP

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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

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Tongdy

Address: 3-3-5/F IN-DO MANSION, No.48-jia Zhichun Road, Haidian District, Beijing, Beijing, China, 100098
Tel: 86-15101027950
Tongdy Control Technology Co., Ltd., founded in 1999 in Beijing China, is a leading hi-tech company engaged in design and manufacture of control products for BAS and HVAC systems. With more than 10 years?experience in product design and research, now Tongdy's product range has covered programmable and non-programmable digital room thermostats for HVAC systems, digital humidity detectors and controllers, and various IAQ detectors and controllers like say for carbon dioxide (CO2), carbon monoxide (CO), ozone (O3) and VOC. All above Tongdy products are available with options like Modbus RS485 interface and some of the thermostats can be provided with BACnet protocol. USB data logging and Zigbee wireless communication are also selectable for some of our IAQ products. With a team of highly talented and experienced engineers, Tongdy is capable of providing the best products possible with excellent performance, super reliability, and competitive prices, and creating new product lines constantly. In addition, Tongdy offers customized services to meet special requirements. Our ODM services have received positive feedbacks due to our accurate understanding and following up of customer抯 requirements. Now Tongdy抯 market has reached not just the Europe, North America, but also the South America, Asia Pacific and the Gulf Area. Our sales volume has increased for more than 30% each year during the last three years. And with the expectation of an even prosperous future, we are about to move in our own building located in the Environment Protection Park in Northwest Beijing!