Shop | On-Line Help Desk

02392 321712

Absolute Calibration

Calibration : Pressure & Vacuum

Pressure & Vacuum

The pressure laboratory is equipped with a 0.008% air dead weight tester with a range from -1 to 25bar and a 0.008% hydraulic dead weight tester with a range of 0 to 700bar with an oil/water converter.

This equipment gives us the ability to calibrate a wide range of precision pressure transducers, transmitters, digital and analogue pressure gauges, vacuum gauges, barometers and multifunction pressure calibrators to a best uncertainty of 0.008%.

We also have a 0.04% pressure calibration system with a range of 0.95 to 200bar with oxygen free nitrogen.

Calibration of low pressure measuring instruments is achieved using a Furness PPC500 which covers pressure between the ranges of 200microbar to 20 mbar with uncertainities of (0.11% +0.3microbar).

Pressure Calibration Budenburg Air Dead Weight Tester

 UKAS Pressure Uncertainties

Measured Quantity Calibration & Measurement Capability
Gas Pressure (Gauge)
-100 kPa to -10 kPa 0.010%
-10 kPa to -3.5 kPa 0.020%
-3.5 kPa to -1.5kPa 0.020% + 1.5 Pa
-1.5 kPa to 0 kPa 0.050% + 82 Pa
0 kPa to 1.5 kPa 0.050% + 42 Pa
1.5 kPa to 3.5 kPa 0.020% + 1.5 Pa
3.5 kPa to 2.5 MPa 0.0080%
2.5 MPa to 6 MPa 0.050% + 2.7 kPa
6 MPa to 25 MPa 0.050% + 13 kPa
Hydraulic Pressure (Gauge)
0 to 600 kPa 0.050% + 810 Pa
600 kPa to 6 MPa 0.010%
6 MPa to 70 MPa 0.010%

Back Link to UKAS Schedule 0078