-20...60°C - 10...100°C

The WIKA 990.30 diaphragm seal is a unique development for homogeniser machines in sanitary applications. This diaphragm seal is available with process connections in various designs and is thus suitable for all common measuring points. The diaphragm seal systems ensure reliable measurements, even with high loading through vibrations and pressure spikes. Mounting of the diaphragm seal to the measuring instrument may be made via a direct connection or a flexible capillary. For the material selection, WIKA offers a variety of solutions, in which the upper body of the diaphragm seal and the wetted parts can be made of identical or different materials.

Wherever very low pressures have to be indicated locally and, at the same time, a signal transmission to the central control or remote centre is desired, the WIKA PGT63HP.100 / PGT63HP.160 pressure gauge intelliGAUGE® (patent, property right: e.g. DE 202007019025) can be used. The robust capsule measuring system has an overload safety of up to 50 times the full-scale value. An electronic angle encoder, proven in safety-critical automotive applications, determines the position of the pointer shaft “ it is a non-contact sensor and therefore completely free from wear and friction. From this, the electrical output signal proportional to the pressure, e.g. 4 … 20 mA, is produced. The measuring span (electrical output signal) is adjusted automatically along with the mechanical display, i.e. the scale over the full display range corresponds to 4 … 20 mA. The electrical zero point can also be set manually. The electronic WIKA sensor, integrated into the high-quality capsule pressure gauge, combines the advantages of electrical signal transmission with a local mechanical display that remains readable during a power failure. An additional measuring point for mechanical pressure display can thus be saved.