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 …
Standards/approvals/directives
When does a sensor modification require changes to the approval?
Stefan Heusel | Know-howGenerally, all pressure sensors which are distributed in the EU market have to comply with the requirements of the “ pressure equipment directive ” as well as the EMC directive 2004/108/EC. Depending on the application or location of operation, a variety of …
Use of pressure sensors in medical oxygen applications – What should be considered?
Stefan Heusel | ApplicationsIn order to use pressure sensors/pressure transmitters in oxygen applications, the cleanliness of all parts in contact with the medium needs to fulfil certain standards. This is due to the fact that increased pressure or an increased oxygen content in the medium can …
Objectives of the VDMA specification sheet for fluid sensors, Part 1 pressure switches
Jürgen Reiser | PressureAs WIKA representative, I have made a contribution to the preparation of the “VDMA Specification Sheet for Fluid Sensors 24574-1 Part 1 Pressure Switches”. What were the objectives of this VDMA committee? Very simple: The objective of the VDMA specification is to …
Analogue output signals of pressure sensors 1: 4 … 20 mA
Stefan Heusel | PressureIn industrial automation and in pressure sensors in particular, the current signal of 4 ... 20 mA is the most frequently used signal for analogue transmission of values. The wide use of this signal is due to its ease of handling and especially its interference …