The AirSafe consists of a flow duct and an integral triboelectric dust sensor. A current of air is drawn through the duct at approximately 100 m3/h. Particles carried in the air current pass through the sensor, this generates a charge transfer, which is used as the measurement signal. This signal is converted to electrical process outputs which could be used for display or control.
The output from the transmitter is a standard 4 . . . 20 mA process output.
Global Technology Systems