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Ex protection

Ex protection for dial thermometers: New standard = new marking

10/24/2017 | Jürgen Reiser | Know-how
Atex_Old_New

Mechanical measuring instruments for use in explosive atmospheres can now be evaluated in accordance with a new standard: DIN EN ISO 80079-36/37 will replace EN 13463-1/5, with the transition period ending on 31 October 2019. For the first instruments, WIKA has …

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Mineral-insulated cables – a core component for the construction of electrical thermometers

08/28/2017 | Jochen Gries | Know-how
Mineral-insulated cables

Mineral-insulated cable, often also abbreviated to MI cable, consists of a metal sheath and ceramic-insulated internal conductors. The ceramic is a metal oxide powder (standard material is MgO) with a purity of > 99.0%, which ensures the insulation of the internal …

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Calibration with portable instruments in hazardous areas

06/19/2015 | Marco Wörner | Applications

When one looks at it objectively, most industrial plants constitute a hazardous zone. Many materials necessary for process operation, and also finished products, are flammable or explosive. The more of these materials are needed for the manufacturing process or are …

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Connection of an Ex nA digital indicator to an Ex i sensor

05/26/2015 | Stefan Heusel | Know-how

Is it possible to connect a non-incendive Ex nA digital indicator to an intrinsically safe Ex i sensor in hazardous areas? Very often, signals from pressure sensors that do not have a built-in digital indicator for the measured value are connected to external digital …

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Ex barrier and intrinsically safe pressure sensors – an inseparable pair

09/17/2014 | Stefan Heusel | Know-how
Intrinsically safe

Within the European Community, intrinsically safe pressure sensors may only be used in hazardous areas if they are installed in conjunction with an Ex barrier. The combination of pressure sensor and Ex barrier must meet the “ Proof of intrinsic safety ” in …

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Welcome to the WIKA blog

In our English-language blog you can expect many interesting articles on pressure, temperature, level and flow measurement, and also on the subject of calibration technology. Furthermore, there are various insights into the world of the WIKA group of companies – seen from different angles.

Most-read articles
  • Pt100, Pt1000 or NTC – which is the right measuring element?
  • Bourdon tube pressure gauge – operating principle
  • Differences between G1/4″ threads
Accuracy Electrical connection Ex protection Hydrostatic Hydrostatic level measurement International Measuring principles Measuring range Pressure gauge Pressure sensor Pressure switch Standards / approvals Switching function Temperature Type of pressure
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