-30...85°C - -40...75°C

The WIKA high-quality MA diaphragm pressure switch is developed for safety-critical applications. The high quality of the WIKA MA diaphragm pressure switch is following ISO 9001, which ensures reliable monitoring of your plant. In production, the switches are traced by quality assurance software at every step and subsequently are 100 % tested. All wetted materials are from stainless steel as a standard. To ensure as flexible operation as possible, the pressure switches are fitted with micro switches, which enable the switching of an electrical load of up to AC 250 V, 20 A directly. For lower switching power ratings, such as for PLC applications, argon gas-filled micro switches with gold-plated contacts can be selected as an option. For applications with special requirements on the wetted parts, versions with materials from PTFE, Monel or Hastelloy are available. By using a diaphragm measuring system, the model MA pressure switch is extremely robust and guarantees optimal operating characteristics. For setting ranges from 4 … 40 bar a piston replaces or completes the diaphragm as a measuring element. The wetted parts of this variant from stainless steel are particularly suited for liquid media.

The WIKA E-10 and E-11 flameproof pressure transmitters have been designed specifically for the high demands of industrial oil and gas applications. These pressure transmitters can be delivered with various analogue signals from 4 … 20 mA to a low-power version with DC 1 … 5 V. They feature exceptionally high resistance to vibration, pressure spikes and moisture ingress. Furthermore, these pressure transmitters fulfil IP 67 (NEMA 4x) ingress protection. On each instrument, comprehensive quality control and calibration is performed, so that an accuracy of 0.5 % can be ensured. Temperature compensation guarantees accuracy and long-term stability, even with strong fluctuations in the ambient temperature. The WIKA E-10 and E-11 are suitable for sour gas applications and feature particularly high resistance against sulphide stress cracking when in contact with sulphurous gases. The pressure transmitters are approved as œexplosion-proof for class I, II, III, div. 1 hazardous areas to FM and CSA as well as œflameproof for II 2 G Ex d II C to ATEX.