TDFi-RT Fan Inlet Airflow and Temperature Measurement Station Electronic Thermal Dispersion Sensing
The TDFi-RT is a unique electronic thermal dispersion type fan inlet air measurement device for reporting airflow and air temperature. The TDFi-RT host reads from one or two sensors and up to 16 additional clients to collect a maximum of 32 velocity and temperature readings from one or more fans. Each fan has one or two sensors located in the fan’s inlet. The sensor’s design ensures the lowest pressure drop in the industry when compared to other after-market fan inlet air measurement devices. Each sensor has a heated and passive thermistor. Up to 16 clients with two sensors per client can be connected to one host. The airflow and temperature information from each sensor is configured to correspond to the fan on which it is installed. This feature makes it possible to use only one Host as the interface point for processing air measurement from multiple fans on one or more AHU’s or RTU’s. The host will average up to 32 sensors on 16 fans when installed and configured as one air measurement station. The total distance between the host and the sum of all clients cannot exceed 500 feet. The TDFi-RT Host has a two-line, 16 character, display for setup and configuration and will show both airflow and temperature.