pressure switch

pressure switch
A switch used to turn an electrical device on or off when a specified fluid pressure is reached. For example, a pressure switch in some hydraulic systems comes into operation when the hydraulic pressure drops to a cut-in pressure value. Pressure switches are also used in aircraft starting systems and engine-hour meters.

Aviation dictionary. 2014.

Look at other dictionaries:

  • pressure switch — Switch operated by a rise or drop in pressure. See oil pressure switch …   Dictionary of automotive terms

  • Pneumatic pressure switch — A pneumatic pressure switch is a form of switch that makes electrical contact when a certain set pressure has been reached on its input. This is used to provide on/off switching from a pneumatic source. References this is wrong …   Wikipedia

  • oil pressure switch — A switch which indicates a drop to below the minimum permissible oil pressure by illuminating the oil pressure warning light …   Dictionary of automotive terms

  • fuel-pressure switch — A device that does not permit application of full current to the electric starter until fuel pressure has reached a predetermined level …   Aviation dictionary

  • Switch — For other uses, see Switch (disambiguation). Electrical switches. Top, left to right: circuit breaker, mercury switch, wafer switch, DIP switch, surface mount switch, reed switch. Bottom, left to right: wall switch (U.S. style), miniature toggle… …   Wikipedia

  • switch — A device that opens and closes an electric circuit. See actuating switch ambient temperature switch authority Limit Switch battery master switch dimmer switch dipper switch door pillar switch fuel cut off switch fuel pump shut off switch …   Dictionary of automotive terms

  • Pressure sensor — Digital air pressure sensor Compact digital barometric pressure sensor A pressure sensor measure …   Wikipedia

  • pressure — [1] The force due to the weight of a substance exerted over the area the substance occupies. In metric measure, it is the force acting on each square metre. To calculate pressure, divide the force (in newtons) by the area (in square metres). It… …   Dictionary of automotive terms

  • pressure differential switch — A hydraulic pressure operated switch (often included in a combination valve) which activates the brake failure warning light when one of the brake circuits (in a dual circuit system) falls due to a system leak and associated pressure drop …   Dictionary of automotive terms

  • pressure sensing switch — Device, used on some late model GM and Ford vehicle, which cycles compressor operation in accordance with pressure changes sensed at the accumulator …   Dictionary of automotive terms

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