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Testermeter-TG9 Duct CO2 Transmitter with Temp.&RH
overview
| In-duct real time detect carbon dioxide, with optional temperature and relative humidity. A special sensor probe with the water-proof and porous film can be easily installed into any air duct. LCD display is available. It has one, two or three 0-10V / 4-20mA linear outputs. The end user can change CO2 range which correspond with the analog output via Modbus RS485, also can preset the inverse proportion liner outputs for some different applications. |
Features
Real time carbon dioxide detection in air duct |
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 | ||
