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Specifications; Operating Conditions; Measurement Range; Power Supply Requirements - GE Telaire Ventostat T8041 User Instructions

Co2 duct mount sensors



Measurement Range

0-2000 PPM factory calibrated
Duct Air Velocity
0 to 1500 ft/min (0 to 450 meter/min)
Temperature Dependence
0.2% of full scale per ºC
<2% of full scale over the life of the sensor (10 years typical)
±40 ppm +3% of reading @ 22ºC (72ºF) when compared with a factory
certified reference
<1% of full scale @ 22ºC (72ºF)
Pressure Dependence
0.13% of reading per mm of mercury
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 a 90% step change at low duct speeds
Sampling Rate
Every two seconds
Warm-up Time
< two minutes (operational); 10 minutes to achieve maximum accuracy
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
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Operating Conditions

Temperature: 0ºC to 50ºC (32ºF to 122ºF)
Humidity: 0 to 95% relative humidity, non-condensin
Storage Conditions
-40ºC to 70ºC (-40ºF to 158ºF)
Voltage 0 to 10 VDC; 0 to 2000 ppm CO

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
Physical Requirements
Probe Length: T8041 4.09 in (10.38 cm)
T8042 8.07 in (20.51 cm)
Probe Diameter: 1.24 in (3.15 cm)
Junction Box Depth: 1.58 in (4.02 cm)
Junction Box H x L: 3.05 in x 3.05 in (7.46 cm x 7.46 cm)
Color: Grey (GY6275)
Installation Kit
Included with the transducer are wire nuts, mounting screws and
installation instructions.
Telaire Ventostat™ T8041/T8042 Series
(100 ohm output impedance)



This manual is also suitable for:

Telaire ventostat t8042