The comparative measurement for the calibration of pressure sensors is performed with electronic pressure controllers and high-precision deadweight testers by using known mass pieces.
Here the comparative measurement is performed in stirred, temperature-controlled liquid baths by using high-precision reference temperature sensors.
Depending on the medium, the comparative measurement is performed by using high-precision reference flow devices and critical nozzles.
The comparative measurement is performed by using a secondary calibration solution.
The calibration is performed by ifm as an accredited laboratory by means of a comparative measurement according to guideline DKD-R 5-1(09/2018) “Calibration of Resistance Thermometers” or guideline DKD-R 6-1 (03/2014) “Calibration of Pressure Gauges” or guideline KV-F001 (2017-06) “Internal calibration method for flow sensors”.
They are traceable to national standards of the Physikalisch-Technische Bundesanstalt (PTB) or other national standards. In contrast to DAkkS calibration certificates, factory certificates are not accepted as traceability proof.