PURPOSE: To provide a detection switch capable of easily and correctly setting a judgment level.
CONSTITUTION: This switch has a pressure detecting means 14 for detecting the pressure value of fluid to generate a detection level signal in accordance with this detected value, a pressure setting means 21 for generating a pressure level signal in accordance with a given set pressure value set by the setting means, and a pressure display part 3 for displaying a set pressure value by an index; and moreover a signal outputting means 26 for outputting a control signal controlling a control circuit, and a correcting means 23 for generating a correction signal so that a pressure level signal can be in accordance with an actual pressure value displayed on the pressure displaying part 3. Then a pressure level signal, generated by the pressure setting means 21, is corrected by a correction signal in a microcomputer 20 to calculate a correction pressure level; and when a pressure value, detected by the pressure detecting means 14, becomes this correction pressure level, the signal outputting means 26 is actuated.
MATSUSHIMA AKIO
TOMITA TSUNEISHI
IGUSHI HIROAKI
SUNX LTD