CO2+Air Quality Duct Transmitter

Product Detailed

Real time probe detect carbon dioxide and air quality (VOC)
of an air duct
Up to 3xanalog linear outputs
Modbus RS485

Monitoring parameters		CO2		Air Quality (VOC)	Temperature	Relative humidity
Sensing element		Non-Dispersive Infrared Detector (NDIR)		Semiconductor mix gases sensor	Digital combined temperature and humidity sensor
Measuring range		0~2000ppm(default) 0~5000ppm (selectable in the order)		0~30ppm	-20~60°C	0~100%RH
Display Resolution		1ppm		5ppm	0.1°C	0.1%RH
Accuracy@25°C(77°F)		±40ppm + 3% of reading		±10%	±0.5°C	±3%RH
Life time		15 years (normal)		5~7 years	10 years
Calibration cycle		ABC Logic Self Calibration		——	——	——
Response Time		<2 minutes for 90% change		<1 minute (for 10ppm hydrogen, 30ppm ethanol) <5 minute (for a cigarette) in 20m2 room	<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 outputs 0~10VAC or 4~20mA selectable by jumpers
Modbus RS485 interface (optional)			RS-485 with Modbus protocol, 19200bps rate, 15KV antistatic protection, independent base address
Conditions of Using and Installation
Operation conditions	-10~50°C(14~122°F); 0~95%RH, non condensing
Storage conditions	-40~70°C(-40~158°F)/ 5~95%RH
Weight	320g
Installation	Fixed on the air duct with 100mm installation hole size
IP class of the housing	PC/ABS IP54 for without LCD models; IP40 for with LCD models
Standard	CE-Approval

1.Designed for real time detecting carbon dioxide, air quality, temperature or relative humidity in air ducts.

2.NDIR infrared CO2 sensor inside with special Self Calibration and up to 15 years’ lifetime. It makes CO2 measurement more accurate and reliable.

3.Mix gases sensor with high sensitivity for VOCs results from new furnishings, wall coverings, office equipment, body odor, tobacco smoke, etc.

4.Combined temperature and humidity digital sensor provide a high accuracy in full range.

5.Provide up to 3 analog outputs (0~10VDC or 4~20mA) for CO2, air quality (VOC) and temperature or relative humidity.

6.Optional Modbus RS485 communication interface.

7.With LCD or without LCD selectable

8.LCD display real-time measurements of CO2, air quality (VOC), temperature and relative humidity.

9.Simple and smart design and installation of sensor probe with a water-proof and ventilated filter

10.Extendable probe meets more air duct systems

11.24VAC/VDC power supply.

12.EU standard and CE-approval.

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