What is “gauge reference?
Most gauges are referenced to ambient pressure which is called Gauge reference. The readings are not affected by atmospheric pressure changes. This means that the gauge will read zero with no pressure applied and continue to read zero as atmospheric pressure changes. Gauges 1000 psi and over use sealed reference transducers which are referenced to a fixed value of 14.7 psia (normal atmospheric pressure). At these higher pressures there is no noticeable difference in operation.
Related Questions
- The DSM reference gauge has a liquid reservoir open to the atmosphere. How can the atmosphere, which acts on the surface of the liquid in the reservoir, affects the settlement readings?
- Why is an absolute pressure transducer more expensive than a gauge reference equivalent?
- How do we establish a point of reference to gauge the net benefits of an offset project?
