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Company logo of BlowerDoor GmbH
BlowerDoor GmbH

New at BlowerDoor GmbH: Fan Calibration according to Manufacturer's Specification

New at BlowerDoor since April 2023 is the calibration (1-point) according to manufacturer's specification for the BlowerDoor Standard measuring fan (model 4). One measured value is calibrated per measuring orifice. The requirement of ISO 9972 for the accuracy of the measuring systems of ± 7 % is assessed. A previous basic maintenance and functional test is included. We calibrate according to date request and ask for registration, in order to ensure short calibration times of max. 5 working days.

read more on blowerdoor.com

Energy / Environment
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Company logo of Scalefree International GmbH
Scalefree International GmbH

Implementing Data Vault 2.0 Zero Keys

As discussed in the previous part of this series, a ghost record is a dummy record in satellite entities containing default values. Simply put, zero keys are the entry in each hub and link entity that is a counterpart to the satellite’s ghost record containing its hash key. In this manner, the term “zero key” is oftentimes used to describe the ghost record’s hash key, which might show up in other Data Vault entities such as in Point-in-Time (PIT) tables or links.

read more on blog.scalefree.com

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The publisher indicated in each case (see company info by clicking on image/title or company info in the right-hand column) is solely responsible for the stories above, the event or job offer shown and for the image and audio material displayed. As a rule, the publisher is also the author of the texts and the attached image, audio and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.