Patent ID: 7186934
Filing Date: 2007-03-06
Classification: H01H

Abstract:
1. A pressure switch comprising: a first push-button switch, a second push-button switch, a pressure sensor, a display unit for displaying a set pressure indication, a storage device storing programs, and a CPU that executes instructions specified by the programs, increases a set pressure when the first push-button switch is operated, decreases the set pressure when the second push-button switch is operated, makes the display unit display the set pressure and provides a detection signal upon the coincidence of a measured pressure measured by the pressure sensor with the set pressure; wherein an indication turning push-button switch is connected to the CPU, the CPU turns the set pressure indication displayed by the display unit through an angle of 180° and executes, when the indication turning push-button switch is operated, a program for reversing function of the first push-button switch to increase the set pressure when the first push-button switch is operated and for reversing function of the second push-button switch to decrease the set pressure when the second push-button switch is operated.