Differential Pressure Calibration

The Mensor Calibration Laboratory is fully equipped with state of the art calibration standards capable of performing differential pressure calibrations.

  • Pneumatic Pressure Media: differential pressure calibration
  • Hydraulic Pressure Media: differential pressure calibration

Mensor's lab is accredited to ISO 17025 by A2LA.

Gauge pressure is a special case of differential pressure in that the low side (the reference) of a gauge sensor is exposed to atmospheric pressure, while the high side (pressure port) is exposed to a different pressure. Differential pressure is similar to gauge pressure in that it also has two sides, called the low side and the high side. However, the low side (sometimes called the line pressure) is not always atmospheric pressure.The low side can be atmospheric or any other pressure along a limited spectrum. The high side can be higher than the low side resulting in a positive differential, or lower than the low side resulting in a negative differential. This is complicated by the fact there may be an offset at different line pressures. 

A good example of this type of sensor is the Qc sensor in Mensor's CPA8001 Air Data Test Set. It is calibrated to compensate for different line pressures.

Differences between the various types of pressure are described in the video below.

To request a quotation for differential pressure calibration, fill out the Calibration Quote Request form.

Pressure Calibration Quote Request
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