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.
Applications
- Reactive Air® and bubbler applications
- Anywhere continuous air pressure monitoring is needed
Standard Features
- Ambient compensated 40 – 160 degrees F
- Current compensated 0 – 4000 ohms
- High voltage loop power design 12-98 VDC
- Non-interacting zero and span adjustments
- Reverse polarity input protection.
- Corrosion-resistant conformal coating
- Two to one zero offset
| Class: | 72-501 – Model APT |
| Overall Accuracy: | 0.25 % |
| Temperature Range: | 0 – 200 degrees F 10 |
| Loop Power: | 12 – 98 VDC |
| Output: | 4- 20 mA |
| Loop Burden at 96 VDC: | 4000 ohms |
| Air Pressure Ranges: | 1.3, 5, 10, 15 PSI |