Dry calibration is used when hydraulic calibration e.g. is not possible due to the lack of a suitable measuring shaft or a lack of storage space.
If hydraulic calibration is not possible, the technical information on throttle calibration, Part 1: Hydraulic calibration of throttle devices No. 5.6, can be used to check the actuating movement in accordance with the SüwVO Abw. and RdErl.
Proper hydraulic calibration of the throttle device takes into account the operating conditions at the installation site.