Differential Pressure Sensor

Differential pressure sensor High and low pressures are separated by a sensor assembly consisting of a magnet, pistons, Teflon seal and range spring. The difference in pressure causes the sensor assembly to move in proportion to the change against a range spring.A rotary magnet, located in a separate body compartment and isolated from the acting pressures, is rotated by magnetic coupling as per the linear movement of the sensor assembly A pointer attached to the rotary magnet indicated differential pressure on the dial