Description
Applications
- Pressure monitoring and control of processes
- Safety-critical applications in general process instrumentation, especially in the chemical and petrochemical industries, oil and gas industries, power generation incl. nuclear power plants, water/wastewater industries, mining
- For gaseous and liquid, aggressive, highly viscous or contaminated media, also in aggressive ambience
- For measuring points with limited space, e.g. control panels
Special Features
- Compact design
- Robust switch enclosure from aluminium alloy or stainless steel with identical dimensions, IP66, NEMA 4X
- Setting ranges from 0.2 … 1.2 bar to 200 … 1,000 bar, vacuum range -1 … -0.2 bar
- Intrinsic safety Ex ia available
- High switching power and large selection of contact variants and electrical connections
Description
The pressure switches have been developed especially for safety-critical applications with limited space. The great advantage of mechanical pressure switches is that no supply voltage is required for the switching process. In production, the switches are traced by quality assurance software at every step and subsequently are 100 % tested.
The robust switch enclosure from aluminium alloy or stainless steel 316 can withstand the rough and corrosive operating conditions of the process industry with working ranges of up to 1,000 bar. To adjust the set point simply open the access cover plate. The access to the terminal block for the electrical connection is protected by a screw-on lid, which is secured with a screw-type lock against unauthorised intervention.
A micro switch integrated in the instrument enables the direct switching of an electrical load of up to AC 250 V, 15 A.
Depending on the application, the appropriate variant for the contact version and the electrical connection can be selected; e.g., hermetically sealed micro switches are suitable for corrosive ambient conditions and DPDT contact versions for two separate circuits.
By using a diaphragm element with antagonist spring as sensor element, the model PCS pressure switch is extremely robust and guarantees optimal operating characteristics. For safety applications, the pressure switch is optionally available in a SIL 2 qualified or a SIL 3 qualified version.
Selected documents
