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Standards/approvals/directives

Repeal of EC79/2009 for hydrogen-powered vehicles: Impact on pressure sensors

Christian Wirl | Know-how
EC79/2009: Existing certificates remain valid

Components in a hydrogen-powered vehicle must have an application-specific safety approval, for which the European Union issued regulation EC79/2009. Although this regulation expired in July 2022, it has not lost its relevance - manufacturers and users will continue to …

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Not the same: temperature range and temperature limit

Michèle Beyer | Know-how
Temperature range and temperature limit are two different things.

Temperature range and temperature limit for pressure sensors – is there a difference? My intuitive answer would be: Yes! The first term describes a section and the second its border. On second glance, however, I have to conclude that both words ultimately express the …

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WIKA develops pressure sensor for hydrogen-powered vehicles

Christian Wirl | Applications
Hydrogen-powered vehicle (forklift truck)

Due to customers‘ demand for greater safety, eco friendliness, performance and efficiency, manufacturers of mobile working machines, trucks and buses are increasingly interested in hydrogen as a fuel source. In hydrogen-powered vehicles, the gas in the H 2 storage …

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Why the calibration of (force) measuring instruments is important

Markus Heidl | Calibration, Products
Calibration on the Tira4

Everyone involved in measurement technology knows the somewhat flippant – but very catchy – statement: “If you measure a lot, you measure nothing!” What is meant by this is: You can measure a lot. But the values are only useful if you can validate them. In …

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Flame arrester protects sewage vacuum truck tanks

Jing Lyu | Applications
Flame arrester also in the vacuum truck

A pre-volume deflagration flame arrester or – simplified – a flame arrester prevents flame transmission, through a measuring instrument, into a zone 0 (gas) hazardous area. This protective function, therefore, plays an important role, especially in process …

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