Telaire T8041/T8042 Ventostat | CO2 Duct Probe Transmitter

Telaire Ventostat T8041 CO2 Duct Probe Transmitter The Telaire Ventostat T8041/T8042 CO2 Duct Probe Transmitter is suitable for indoor air quality and energy conservation applications, offering accuracy and versatility at an affordable price. This exceptional product line touts an unobtrusive form factor that is easy to install, simple to use, and remains accurate over the expected life of the device using Telaire’s patented ABC Logic™ (Automatic Background Calibration) technology.

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Applications

CO₂ transmitters can be used in a broad range of applications including air quality monitoring in buildings.
CO₂ concentration levels in buildings are monitored to provide an indication of occupancy and to drive a ventilation control strategy. An effective DCV (Demand Controlled Ventilation) strategy will conserve energy and maintain indoor air quality.

Features

Simple installation (mounting hardware and instructions included)
Ideally suited for larger HVAC return air ducts
Offers standard 0-10 volt output Patented absorption infrared/gas sensing engine provides high accuracy in a compact low cost package
Patented ABC Logic™ self-calibration system eliminates the need for manual calibration in most applications
Gas permeable, water resistant diffusion filter prevents particulate and water contamination of the sensor
Lifetime calibration guarantee
Two probe lengths avaliable

Specifications

Measurement Range	0-2000 PPM factory calibrated
Duct Air Velocity	0 to 1500 ft/min (0 to 450 meter/min)
Temp Dependence	0.2% of full scale per ºC
Stability	<2% of full scale over the life of the sensor (10 years typical)
Accuracy*	±40 ppm +3% of reading @ 22ºC (72ºF) when compared with a factory certified reference
Non-Linearity	<1% of full scale @ 22ºC (72ºF)
Pressure Dependence	0.13% of reading per mm of mercury
Response Time	3 minutes typical for a 90% step change at low duct speeds
Sampling Rate	Every two seconds, 25% duty cycle
Operating Conditions	Temperature: 0ºC to 50ºC (32ºF to 122ºF) Humidity: 0 to 95% relative humidity, noncondensing
Storage Conditions	-20ºC to 70ºC (-40ºF to 158ºF)
Note:	The Telaire product line offers patented ABC Logic™ software for self-correction of drift to better than ±20 ppm per year. The system is virtually free of maintenance and typically has than 10 years.