Functional test and adjustment included. The firmware of older DG-700 devices will be updated free of charge.Please note:The calibration certificate contains the information as to whether your measuring device fulfills or does not fulfill the requirements of the standards ISO 9972, FD P50-784 and RE2020 (statement of conformity). The decision criterion for conformity is based on Regulation 4.2.2 of ILAC-G8:09/2019. Please let us know if you would like a different decision criterion: We will be happy to provide you with a customised quote.

Functional test and adjustment included. The firmware of older pressure gauges is updated free of charge. The accuracy of our digital pressure gauge DG-700 is ± 1 %. The working standards applied by BlowerDoor are based on national and international standards. For each differential pressure channel, we calibrate 24 measuring values in the range from ±1,220 Pa in the range from ± 1,220 Pa . At BlowerDoor GmbH, the incoming calibration is followed by the adjustment of the pressure gauges so that deviation errors can be corrected as necessary. The outgoing calibration documents the optimized measuring accuracy of the adjusted pressure gauge. The preceding functional test also checks the tightness of the pressure sensors, the control of the BlowerDoor fan, and the overlay. Recommended calibration interval: 2 years