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Innovation Center’s inauguration ceremony

WIKA has opened the Innovation Center in Klingenberg with a ceremony. The new building manifests the Group’s hopes for the future and, with its open architecture and new high-tech laboratories, it opens up new horizons.300 guests were invited to the opening, including the Bavarian Minister-President and other representatives from politics and trade associations. They were …

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Calibration / contamination control with a block and bleed valve and coalescing filter

When calibrating or testing a gauge or transducer with a pneumatic pressure controller you should protect the controller from any liquid contaminants which may be present in these devices under test (DUT). A block and bleed valve (BBV) in-line with a coalescing filter is an effective way to do that.The potential flow of containments is …

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Bourdon tube pressure gauge – functional principle

Bourdon tube pressure gauges are the most frequently used mechanical pressure measuring instruments. Their pressure element is often referred to as a Bourdon tube: The French engineer Eugène Bourdon made use of this functional principle in the middle of the 19th century. It is based on an elastic spring, a c-shaped, bent tube with an …

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Identification of absolute pressure and relative pressure measuring ranges for pressure sensors

How are absolute and relative pressure measuring ranges distinguished? There are pressure gauge octa . They can be explained in the following example:Europe: 0 … 10 bar / 0 … 10 bar absAmerica: 0 … 150 psig / 150 psiaIn Europe only the absolute measuring ranges are identified (by the abbreviation “abs” behind the unit). …

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Definition of the IP68 rating in theory and practice

Unfortunately, we are asked too rarely regarding the specification of the IP68 rating for our pressure sensors and submersible pressure transmitters, i.e. how deep such an instrument may be submersed. However, ไดอะแฟรม ซีล is not only a very meaningful question but also a mandatory one, because, contrary to almost all other IP ratings, the IP68 …

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Switch points in vacuum ranges: How are they set?

Setting the switch points of an electric pressure switch for an application in the vacuum range is not a self-explanatory task. The following article therefore explains what needs to be taken into account with this particular setting. It involves a pressure switch with a hysteresis function. Instruments with this configuration are most regularly installed in …

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