Duct CO2 Transmitter with Temp.&RH

Short Description:

Model: TG9 Series
Key words:
CO2/Temperature/Humidity detection
Duct Mounting
Analog linear outputs

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.

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Brief Introduction

Product Tags

FEATURES

Real time carbon dioxide detection in air duct
High accuracy temperature and relative humidity
with extendable air probe into air duct
Equiped With the water-proof and porous film around the sensor probe
Up to 3 analog linear outputs for 3 measurements
Modbus RS485 interface for 4 measurements
With or without LCD display
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