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 …
In certain applications, the current or voltage signal of a pressure transmitter must not exceed and/or drop below a critical value. This can be ensured with the aid of so-called signal limiting. If the pressure on a pressure transmitter lies within the nominal …
Within the selection criteria for pressure gauges, type of pressure takes top priority. The measurement of gauge pressure, in fact, reliably fulfils the purpose with the majority of processes. However, for numerous applications in industry, pressure gauges for absolute …
A pressure switch with the “change-over” switching function represents a special version of a pressure switch with two switching outputs acting oppositely to switch two circuits. A “change-over” closes one circuit and simultaneously opens a second circuit. Thus …
In temperature calibration technology, there are two methods of calibration - the comparative calibration and the fixed point calibration. The method of calibration to be used will be defined through the demands on the accuracy and the type of test instrument. The …
