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The Telaire Ventostat T8041/T8042 CO2 Duct Probe Transmitter is a duct-mounted carbon dioxide transmitter for indoor air quality and energy conservation applications. Mounted in HVAC return air ducts, the Telaire Ventostat T8041/T8042 CO2 Duct Probe Transmitter measures CO2 in the airstream so ventilation can be matched to occupancy, which avoids the energy waste of over-ventilation while keeping indoor air quality within target levels.
Measurement uses a patented absorption infrared gas sensing engine, factory calibrated over a range of 0 to 2000 ppm with a standard 0 to 10 volt output. Accuracy is plus or minus 40 ppm plus 3% of reading at 22 degrees C against a factory certified reference, with non-linearity under 1% of full scale and a typical response time of 3 minutes for a 90% step change at low duct speeds. The patented ABC Logic self-calibration system of the Telaire Ventostat T8041/T8042 CO2 Duct Probe Transmitter corrects for drift to better than plus or minus 20 ppm per year, eliminating manual calibration in most applications and carrying a lifetime calibration guarantee. A gas permeable, water resistant diffusion filter protects the sensor from particulate and water contamination.
The Telaire Ventostat T8041/T8042 CO2 Duct Probe Transmitter is rated for duct air velocity up to 450 metres per minute and operates from 0 to 50 degrees C at 0 to 95% relative humidity, non-condensing. The Telaire Ventostat T8041/T8042 CO2 Duct Probe Transmitter is well suited to larger HVAC return ducts, ships with mounting hardware and instructions, and is available in two probe lengths. Supplied by BAMR, South Africa's authorised distributor.
Telaire Ventostat T8041/T8042 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.
- Simple installation mounting hardware and instructions included
- Ideally suited for larger HVAC return air ducts
- 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 available
Specifications
- Part Number
- T8041 & T8042
- Measurement Range
- 0-2000 PPM factory calibrated
- Duct Air Velocity
- 0 to 450 meter/min
- Temp Dependence
- 0.2% of full scale per °C
- Stability
- <2% of full scale over the life of the sensor (10 years typical)
- Accuracy
- ±40 ppm +3% of reading @ 22°C when compared with a factory certified reference
- Non-Linearity
- <1% of full scale @ 22°C
- 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: 0°C to 50°C; Humidity: 0 to 95% relative humidity, noncondensing
- Storage Conditions
- -20°C to 70°C B22
- 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.
Specifications
Specifications
- Part Number
- T8041 & T8042
- Measurement Range
- 0-2000 PPM factory calibrated
- Duct Air Velocity
- 0 to 450 meter/min
- Temp Dependence
- 0.2% of full scale per °C
- Stability
- <2% of full scale over the life of the sensor (10 years typical)
- Accuracy
- ±40 ppm +3% of reading @ 22°C when compared with a factory certified reference
- Non-Linearity
- <1% of full scale @ 22°C
- 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: 0°C to 50°C; Humidity: 0 to 95% relative humidity, noncondensing
- Storage Conditions
- -20°C to 70°C B22
- 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.
Downloads
Frequently asked questions
Does the T8041/T8042 require recalibration during operation?
ABC Logic™ automatically corrects for sensor drift to better than ±20 ppm per year, eliminating the need for manual recalibration over the typical 10-year sensor life.
What accuracy should I expect from the T8041/T8042?
Accuracy is ±40 ppm plus 3% of the reading at 22°C when compared to a factory certified reference.
How quickly does the transmitter respond in a duct environment?
Response time is 3 minutes typical for a 90% step change at low duct speeds, with sampling every two seconds.
Will sensor drift affect long-term performance?
Stability is better than 2% of full scale over the sensor's typical 10-year life. ABC Logic™ automatically compensates for drift.
What are the operating environmental conditions?
The transmitter operates from 0°C to 50°C at humidity levels up to 95% (non-condensing). It supports duct air velocities from 0 to 450 metres per minute.
What maintenance is required?
The system is virtually free of maintenance and requires no regular servicing over its typical 10-year lifespan.
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Tell us about your application and we will send a quote with lead time and accessories.