GP1 thermal dispersion duct and plenum airflow/temperature probes relate the heat transfer rate of a heated element to the airflow rate. As the velocity across the sensor increases, the heat transfer rate increases. Each sensor is computer calibrated at 16 airflow rates between 0 and 5,000 fpm (0 and 25.4 m/s) in a wind tunnel calibrated to NIST-traceable airflow standards.

GP1 sensor probes use two “bead-in-glass” thermistors to determine the airflow rate and temperature at each sensing point location. Accuracy is percent of reading (not percent of full scale). Performance is assured throughout the entire calibrated range. Probes are connected to a GTx116 transmitter that sums individual airflow and temperatures prior to averaging and outputs both to your host control system.

GP1 probes are ideal for applications requiring accurate and repeatable airflow measurement with no field adjustment or calibration. Thermal dispersion technology can accurately determine airflow in traditionally difficult locations since each sensor independently determines the airflow rate prior to averaging. Laboratory test data demonstrates that EBTRON’s thermal dispersion airflow measurement can be applied closer to disturbances, such as duct fittings, than any other technology*.

* Contact EBTRON for more information.