The device that senses pressure and controls the compressor cycling is called a?

The device that senses pressure and controls the compressor cycling is called a?

• A. Pressure Switch
• B. Pressure Regulator
• C. Flow meter
• D. Filter

Answer: (A)

In a pneumatic system, the device that senses the system pressure and automatically starts and stops the compressor is the pressure switch. It monitors the air pressure in the reservoir and uses that signal to energize or de-energize the compressor. Typically it sets two thresholds: when pressure drops to the lower set point, the compressor starts; when pressure rises to the upper set point, the compressor stops. This keeps the system pressure within a desired range without manual intervention. The other devices have different roles: a pressure regulator maintains a set downstream pressure but doesn’t control when the compressor turns on or off; a flow meter measures how much air is moving through the system; a filter removes contaminants from the air.

In a pneumatic system, the device that senses the system pressure and automatically starts and stops the compressor is the pressure switch. It monitors the air pressure in the reservoir and uses that signal to energize or de-energize the compressor. Typically it sets two thresholds: when pressure drops to the lower set point, the compressor starts; when pressure rises to the upper set point, the compressor stops. This keeps the system pressure within a desired range without manual intervention.

The other devices have different roles: a pressure regulator maintains a set downstream pressure but doesn’t control when the compressor turns on or off; a flow meter measures how much air is moving through the system; a filter removes contaminants from the air.