In 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 …
Standards/approvals/directives
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 …
Definition of the IP68 rating in theory and practice
| Michèle Beyer | GeneralUnfortunately, 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, this is not only a very meaningful question but also a …