As 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 …
In so-called “gauge sensors” pressure is always measured relative to the currently prevailing ambient pressure. However, the ambient pressure is by no means constant. It is location- and height-dependent and changes with the weather. This means that for a …
Why are there no unified colour codes for cable wires of the pressure sensors? This question is entirely justified, because unified wire colours would simplify everything. Not only the manufacturer's different cable versions but also the documentation and installation …
How are absolute and relative pressure measuring ranges distinguished? There are considerable international differences. They can be explained in the following example: Europe: 0 … 10 bar / 0 … 10 bar abs America: 0 … 150 psig / 150 psia In …
For some years now, it has been possible to increasingly automate production processes, and by doing to to achieve substantial cost reductions in some cases. This raises the question: does it still make sense to use mechanical pressure measuring instruments? The …
