What is the difference between Absolute Pressure and Gauge Pressure?
We have multiple versions of our pressure gauges and pressure calibrators to support applications requiring gauge pressure or absolute pressure.
Absolute pressure gauges display pressure relative to absolute zero. Pressure is displayed as psia, for example.
Gauge pressure gauges display pressure relative to atmospheric conditions. Because atmospheric conditions differ depending on elevation and latitude, gauge pressure devices must be zeroed before use to measure accurately.
Here are our pressure measurement devices and what they measure:
XP2i Digital Pressure Gauge -Measures gauge pressure
XP2i Absolute Pressure Gauge - Measures absolute pressure
m1 and m1M Pressure Gauge - Measures gauge pressure
nVision Reference Recorder - Measures gauge pressure as standard and absolute pressure with the optional BARO module
HPC50 Series Pressure Calibrator - Measures gauge pressure as standard and absolute pressure with the optional BARO module
HPC40 Series Pressure Calibrator - Measures gauge pressure as standard and absolute pressure with the optional BARO module
30 Series Pressure Calibrator - Measures gauge pressure