Description
This device operates an electrical contact when a certain set fluid pressure has been reached. The switch may be designed to make contact either rise or fall. They are widely used in industry to automatically supervise and control systems that use pressurized fluids.
There are two main types of pressure switches: mechanical and electronic.
- Mechanical pressure switches use a mechanical element, such as a bourdon tube, diaphragm, or piston, to sense the pressure of the fluid. When the pressure reaches the set point, the mechanical element moves and triggers the electrical contact.
- Electronic pressure switches use a pressure sensor to measure the pressure of the fluid.
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