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The WIKA 432.56 / 433.36 gauges with diaphragm pressure elements are gaseous and liquid aggressive media, also in an aggressive ambience. The 432.56 and 433.36 are specially developed for measuring points with increased overpressure. Dependant upon the pressure range and the instrument model, overpressure safety of 3 x or 5 x full-scale value is possible as standard. For unique designs, an overpressure safety of 10, 40, 100 or 400 bar is possible, with the measuring accuracy maintained. Liquid filling the case ensures a precise instrument display, even with high dynamic pressure loads and vibrations. Special wetted parts materials are available as options. Ask our product specialist for further personalised information. Wherever the process pressure has to be indicated locally and, at the same time, circuits need to be switched, the model 432.56 or 432.36 switchGAUGE finds its use. Switch contacts (electrical alarm contacts) close or open circuits dependent upon the pointer position of indicating measuring instruments. The switch contacts are adjustable over the full extent of the scale range (see DIN 16085), and are mounted predominantly below the dial, though also partly on top of the dial. The instrument pointer (actual value pointer) moves freely across the entire scale range, independent of the setting. The set pointer can be adjusted using a removable adjustment key in the window. Switch contacts consisting of several contacts can also be set to a single set point. Contact actuation is made when the actual value pointer travels beyond or below the desired set point. The pressure gauge is manufactured in accordance with DIN 16085 and fulfils all requirements of the relevant standards (EN 837-3) and regulations for the on-site display of the working pressure of pressure vessels. As switch contacts magnetic snap-action contacts, reed switches, inductive contacts – for requirements to ATEX – or electronic contacts for triggering a PLC are available. For further information on the different switch contacts please see data sheet AC 08.01.