In duct air quality sensor transmitter with CO2 and TVOC
FEATURES
Designed for real time detecting carbon dioxide, temperature or relative humidity in air ducts.
NDIR infrared CO2 sensor inside with special Self Calibration and up to 15 years’ lifetime. It makes CO2 measurement more accurate and reliable.
Combined temperature and humidity digital sensor provide a high accuracy measurement in full range.
Provide up to 3 analog outputs (0~10VDC or 4~20mA or 0~5VDC) for CO2 temperature and relative humidity.
Optional Modbus RS485 communication interface.
The end user can adjust CO2/Temp. range which correspond with the analog outputs Via Modbus, also can preset the direct proportion or inverse proportion for different applications.
With LCD or without LCD selectable
LCD display real-time measurements of CO2, temperature and relative humidity.
Simple and smart design and installation of sensor probe with a water-proof and porous film
Extendable probe meets more air duct systems
24VAC/VDC power supply.
EU standard and CE-approval.
TECHNICAL SPECIFICATIONS
| Monitoring parameters |
CO2 |
Temperature |
Relative humidity |
| Sensing element | Non-Dispersive Infrared Detector (NDIR) | Digital combined temperature and humidity sensor | |
| Measuring range |
0~2000ppm(default) 0~5000ppm (selectable in the order) |
0℃~50℃(32℉~122℉) (default) | 0~100%RH |
| Display Resolution |
1ppm |
0.1℃ |
0.1%RH |
| Accuracy@25℃(77℉) | ±60ppm + 3% of reading |
±0.5℃ (0℃~50℃) |
±3%RH (20%-80%RH) |
|
Life time |
15 years (normal) |
10 years |
|
| Calibration cycle | ABC Logic Self Calibration |
—— |
—— |
| Response Time | <2 minutes for 90% change | <10 seconds to reach 63% | |
| Warm up time | 2 hours (first time)2 minutes (operation) | ||
|
Electrical Characteristics |
|||
| Power supply | 24VAC/VDC | ||
| Consumption | 3.5 W max. ; 2.5 W avg. | ||
|
Outputs |
Two or three analog outputs0~10VDC(default) or 4~20mA (selectable by jumpers) 0~5VDC (selected at place the order) | ||
| Modbus RS485 interface (optional) | RS-485 with Modbus protocol, 19200bps rate, 15KV antistatic protection, independent base address | ||
|
Conditions of Using and Installation |
|||
| Operation conditions | 0~50℃(32~122℉); 0~95%RH, non condensing | ||
| Storage conditions | 0~50℃(32~122℉)/ 5~80%RH | ||
|
Weight |
320g | ||
| Installation | Fixed on the air duct with 100mm installation hole size | ||
| IP class of the housing | IP50 for no LCD IP40 for with LCD | ||
| Standard | CE-Approval | ||
Write your message here and send it to us
