Pressure Calibration - UKAS
Pressure Gauge Calibration - Instrument Calibration Services
Our UKAS pressure calibration laboratory is well equipped with a wide range of standards from precision digital barometers to primary sources such as pressure balances. We can generate and accurately measure pressures from about 0.001mbar right up to 4,000bar with low uncertainties.
This puts the calibration of most types of pressure instrument within our scope, including instruments with an electrical, frequency or charge output.
Low and Medium Gas Pressure Instrument Calibration (Gauge, Differential and Absolute Mode)
Suitable for the UKAS Calibration of...
Gauge or Differential Pressure: 2Pa to 2MPa
Absolute Pressure: 0.001mbar to 20bar
Typical UKAS Pressure Calibration Uncertainties...
Gauge or Differential:
±0.06Pa at 10Pa
±0.2Pa at 100Pa
±0.5Pa at 1000Pa
±0.0085% from 7kPa to 2MPa
Absolute:
±0.13mbar at 1mbar
±0.15mbar at 100mbar
±0.12mbar at 1000mbar
Also applies to "negative gauge" instrument calibration.
High Gas Pressure Instrument Calibration (Gauge and Absolute Mode)
Suitable for the UKAS Calibration of...
Gauge or Absolute Pressure: 20bar to 250bar
Typical UKAS Pressure Calibration Uncertainties...
Gauge or Absolute Pressure:
From approximately ±13mbar at 25bar
to approximately ±50mbar at 250bar
Hydraulic Pressure Instrument Calibration (Gauge and Absolute Mode)
Suitable for the UKAS Calibration of...
Gauge or Absolute Pressure: 5bar to 4,000bar
Typical UKAS Pressure Calibration Uncertainties...
Gauge or Absolute Pressure:
±0.011% from 5bar to 70bar
±0.009% from 70bar to 1,100bar
±0.024% from 1,100bar to 4,000bar
This puts the calibration of most types of pressure instrument within our scope, including instruments with an electrical, frequency or charge output.
Low and Medium Gas Pressure Instrument Calibration (Gauge, Differential and Absolute Mode)
Suitable for the UKAS Calibration of...
- Air data test set
- Blood pressure monitor
- Manometer or micro-manometer (incl. magnehelic)
- Pressure gauge or transducer
- Pressure calibrator
- Switch
- Transmitter
- Vacuum gauge or transducer
Gauge or Differential Pressure: 2Pa to 2MPa
Absolute Pressure: 0.001mbar to 20bar
Typical UKAS Pressure Calibration Uncertainties...
Gauge or Differential:
±0.06Pa at 10Pa
±0.2Pa at 100Pa
±0.5Pa at 1000Pa
±0.0085% from 7kPa to 2MPa
Absolute:
±0.13mbar at 1mbar
±0.15mbar at 100mbar
±0.12mbar at 1000mbar
Also applies to "negative gauge" instrument calibration.
High Gas Pressure Instrument Calibration (Gauge and Absolute Mode)
Suitable for the UKAS Calibration of...
- Pressure gauge or transducer
- Pressure calibrator
- Switch
- Transmitter
Gauge or Absolute Pressure: 20bar to 250bar
Typical UKAS Pressure Calibration Uncertainties...
Gauge or Absolute Pressure:
From approximately ±13mbar at 25bar
to approximately ±50mbar at 250bar
Hydraulic Pressure Instrument Calibration (Gauge and Absolute Mode)
Suitable for the UKAS Calibration of...
- Pressure gauge or transducer
- Pressure calibrator
- Switch
- Transmitter
Gauge or Absolute Pressure: 5bar to 4,000bar
Typical UKAS Pressure Calibration Uncertainties...
Gauge or Absolute Pressure:
±0.011% from 5bar to 70bar
±0.009% from 70bar to 1,100bar
±0.024% from 1,100bar to 4,000bar
Gauge, Absolute & Differential Pressure
Gauge pressure is the deviation of a particular pressure away from atmospheric pressure. It can be positive or negative.
Eg. A dial pressure gauge whose pointer reads zero when no pressure is applied would usually measure gauge pressure.
Absolute pressure is a measurement of pressure relative to a complete or absolute vacuum. It will always be positive.
Eg. A barometer measures absolute pressure.
Differential pressure is the measurement of any pressure relative to another pressure. It can be positive or negative.
Eg. A manometer used to measure the pressure drop accross an air filter is measuring differential pressure.
