...
Usually all pressure gauges are calibrated to show "0" value at 1 bar so that:
Pressure (gauge) = Pressure (absolute) - 1 bar
and
Pressure (absolute) = Pressure (gauge) - 1 bar
In order to discriminate gauge pressure values from the absolute pressure, the gauge pressure units are usually augmented with suffix "g":
| barg | psig |
|---|---|
| in Oil Metric System | in Oil Field System |
See also
...
Natural Science / Physics / Measurement
...