It is referred to as pounds per square inch (gauge) or PSIG. The electrical output of a gauge
pressure transducer is 0 VDC at 0 PSIG (14.7 PSIA) and
full scale output (typically 5 VDC) at
full scale
pressure (in PSIG). Absolute
pressure is measured relative to high
vacuum (0 PSIA).Oct 1, 2015
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