-30...60°C - -20...70°C

The WIKA PSM-550 pressure switch is used in industrial control, monitoring and alarm applications. The PSM-550's switch point can be specified by the customer on-site. The instrument can switch electrical loads of up to AC 230 V, 10 A. The WIKA PSM-550 pressure switch offers many application possibilities with non-corrosive media like oil, water and air.

The mechanical WIKA PSM-700 pressure switch is designed for control and monitoring applications. The measuring element is a fully welded bellow made of stainless steel 316L. This corrosion-resistant pressure switch is suitable for a broad range of media used in the process industry. The case consists of a high-grade aluminium alloy with which the pressure switch can withstand the harsh operating conditions of the process industry. The WIKA PSM-700 pressure switch is equipped with UL listed micro switches to ensure high endurance with the durable operation and long service life. The WIKA PSM-700 pressure switch has a high switch point repeatability of 0.5 %, which enables reliable switching. Adjustable switch differential to a wide range of up to 60 % of the setting range to realise flexible on/off controls This wide setting range is often needed for the on/off control mode of cyclic applications. The switch point can be specified on site. With the tamper-proofing, which is available as an option, unauthorised adjustment of the switch point can be prevented.