Differential pressure calibration techniques are very similar to those used in Absolute and Gauge pressure, with the exception that, instead of being at vacuum or atmosphere, the reference ports of all devices are exposed to a common, controlled pressure that may be higher or lower than the calibration pressure.

Chell are, we believe, the only calibration laboratory in the World to have two accredited Schwien Merco-Master manometers working side-by-side. This facility affords us the ability to both measure and generate differential pressures over the range +/- 190 kPa with uncertainties below 30ppm.

The high integrity of our standards allows us to provide a calibration service for the highest echelon of safety critical calibration instruments used to calibrate devices such as

• Airspeed indicators
• Altimeters
• Rate of Climb (or Vertical Speed) Indicators
• Ps channels of Air Data Test Sets and Pitot Static Testers
  
  … .. as well as differential pressure transducers, transmitters and dp cells

If you have any questions or would like to know more details about our calibration laboratory and the service it provides, please do not hesitate to contact us.

Email address
Telephone 01692 500555
Fax number 01692 500088