APT Air Pressure Transmitter
Available from Tesco Controls Inc.
The APT pressure transmitter provides accurate linear pressure sensing in ranges from 0 – 1.3 to 0 – 15 PSI. A solid-state piezoresistive silicon element into which a Wheatstone bridge has been diffused offers a high degree of accuracy and long term stability. High resistance burden compensation and 12-98 VDC loop power design allows the APT to be remotely located, several miles from the receiver/source, without degrading accuracy or operation. A unique 12 stage lightning/surge protection circuit, TESCO TRANS-TRAP, may be incorporated to provide optimum circuit protection in harsh environments where lightning protection is a serious concern. Multiple APT’s can be direct panel mounted on 2 inch centers, with front panel adjustments, eliminating the requirement for external transmitter enclosures and costly field wiring.