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 …
Pressuresensor Know-how
Unified colour codes and cable assignment for cable wires of pressure sensors
Michèle BeyerWhy 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 …
Identification of absolute pressure and relative pressure measuring ranges for pressure sensors
Michèle BeyerHow 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 …
Electronic pressure sensor/pressure transmitter or mechanical pressure indicator?
Stefan HeuselFor 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 …
Analogue output signals of pressure sensors 2: DC 0 … 10 V, DC 1 … 5 V, DC 1 … 10 V
Stefan HeuselApart from the current signals described in the article "Analogue output signals of pressure sensors 1", the voltage signals 0 … 10 V, 1 … 5 V and 1 … 10 V are used in industrial automation for the transmission of measured values. As with the current signals, …