Temperature-compensated pressure gauge with a switch output

A monitoring device for a temperature-compensated monitoring of a pressure of a gas or a protective gas in a high-performance switching system, the monitoring device comprising:

• a pressure-sensing element that has a coupling section that is deflectable in response to a gas pressure variation;
• a temperature-sensing element that has a variable length between a first and a second connecting section in response to a temperature variation;
• a main segment rotatable about a main axis with an articulation section attached thereto, the temperature-sensing element with the first connecting section being coupled to the coupling section of the pressure-sensing element and acts with the second connecting section together with the articulation section to influence a rotational position of the main segment about the main axis;
• and
• at least one first switching unit comprising:
• a first electrical switching element that is actuated by a rotatable cam coupled to the main segment, the cam being rotatable about the main axis;
• and
• a first auxiliary segment that is rotatable about the main axis and to which the first electrical switching element is attached such that a relative position between the cam and the first electrical switching element is changed by changing the rotational position of the first auxiliary segment,
• wherein the cam and the first auxiliary segment are mounted coaxially on the main axis,
• wherein the first auxiliary segment is adapted to be engaged selectively with an adjustment gearing that is manually rotatable so that by rotating the adjustment gearing, a switch point of the first electrical switching element is adjusted with reference to the rotational position of the cam rotatable with the main segment, and
• wherein the adjustment gearing includes a toothed gear mounted on an adjustment axis that extends essentially parallel to the main axis, wherein teeth of the toothed gear of the adjustment gearing mesh with teeth of the first auxiliary segment.