AST Pressure Sensor Blog

4-20mA Differential Pressure Transmitter up to 5,000 PSI Line Pressure

Nov 15th 13

4-20mA differential pressure transmitterThe AST5400 differential pressure transmitter is now available with a 4-20mA two wire output signal. The addition of the two wire output signal opens new markets and applications for the DP, which was traditionally used on off-road filtration systems and SCADA telemetry units requiring a voltage output signal. The 4-20mA output signal is more popular among test stand and OEM designs. It allows for long transmissions with greater noise immunity.

The differential pressure transmitter is available with line pressures up to 5,000 PSI (350 bar) and is typically packaged with a measurement range of 1/10 to 1/15 it's line pressure. AST can customize the measurement range to each customer's exact specifications.

For OEM applications, the AST5400 is available with an additional output signal from the transmitter. In addition to differential pressure, the AST5400 can also produce a line pressure output signal from the high pressure port or a temperature output signal. These additional outputs reduce the number of overall sensors and can add safety and reliability features previously not used.

For more information on the AST5400, visit: Wet / Wet Differential Pressure Transducer


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