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Document overview
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Technical content
Features
- One of the smallest in-duct CO2 transmitters on the market
- Simple installation (mounting hardware and instructions included)
- Ideally suited for OEM manufacturers that must accommodate smaller < 6 in (15.2 cm) 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 Amphenol Advanced Sensors
Description
Telaire Ventostat® T8031 CO2 duct mount transmitter is the smallest package available. The T8031 is a CO2 transmitter designed to be installed in HVAC return air ducts. The size of the board and the dimensions of the case have been optimized to place the transmitter in small, i.e. 6 inch [15.24 cm] diameter, return air ducts. This product offers a sleek design, a simple analog output, and it is easy to install. The transmitter includes mounting hardware and installation instructions. Measurement Range 0-2000 ppm factory calibrated Duct Air Velocity 0 to 1500 ft/min (0-450 meter/min) Temp Dependence 0.2% of full scale per ºC *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 *Calibration Sensors will be calibrated at zero and span at the factory. Calibration in the field will not be required. Sensors will be shipped with ABC Logic™ turned on. Response Time Three minutes typical for 90% step change at low duct speeds Warm-up Time < Two minutes (operational); 10 minutes to achieve maximum accuracy Operating Conditions
- Temperature: 0ºC to 50ºC (32ºF to 122ºF)
- Humidity: 0 to 95% relative humidity, non-condensing Storage Conditions -20ºC to 70ºC (-4ºF to 158ºF) Certifications RoHS compliance FCC Part 15,B CE EMC EN61000-6-2, class B, criterion B* *Deviations of the output signal may occur during strong electrical fast transients on the power line Enclosure flammability rating – UL94-5VA Output Analog 0 to 10 VDC (100 ohm output impedance) Power Supply Requirements 18 to 30 VAC RMS, 50/60 Hz or 18 to 42 VDC, polarity protected. Power Consumption Typical values (1.65 watts peak, 0.65 watts avg. @ 42 VDC) *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 a lifetime of more than 10 years. Physical Requirements Dimensions: Length: 3.83 in (9.72 cm) + 0.74 in (1.87 cm) mounting tab Width: 1.17in (2.97 cm) Height: 0.94 in (2.38 cm) Color: 701 Black Flammability Classification: UL 94V-5 AAS-920-377C-03/2014 www.amphenol-sensors.com © 2014 Amphenol Corporation. All Rights Reserved. Specifications are subject to change without notice. Other company names and product names used in this document are the registered trademarks or trademarks of their respective owners. Amphenol Advanced Sensors Sensor Optics µController T8031 CO2 Sensor Power Supply Red Wire Input Power
18 VDC to 42
18 VAC to 30 VAC
(0 to 10 VDC) (0 to 2000 PPM) Common Black Wire