Electronic digital pressure switch
AssigneeSanyo Electric Co., Ltd.
InventorsYoshio Miyamoto, Tsutomu Yamaguchi
Life of this patent
Estimating the term…
Abstract
An electronic digital pressure switch for detecting gas pressures features improved safety. The digital pressure switch that detects gas pressures and generates outputs has a housing provided with pinholes that allow a gas to pass therethrough. With this arrangement, even if a gas should leak into the housing, the leakage gas is let out through the pinholes. Thus, when the pressure of a flammable gas is detected, it is possible to eliminate the danger of an explosion caused by the flammable gas accumulating in the housing.
Claims10
An electronic digital pressure switch for detecting a gas pressure comprising:
- a housing having a ventilating portion allowing a gas to pass therethrough;
- and
- a pressure sensor inside the housing to detect pressure of a gas supplied to the housing and to generate an output representing the detected pressure,
- wherein the output generated by the pressure sensor is used to control the pressure of the gas supplied to the housing.
An electronic digital pressure switch for detecting pressures and generating outputs, comprising:
- a contact output that turns ON/OFF according to detected pressures and that allows ON and OFF values to be set;
- a display means that digitally displays detected pressures and also digitally displays ON/OFF values of the contact output by switching an operation mode;
- and
- an analog output that changes its output values according to detected pressures.
An electronic digital pressure switch for detecting pressures and generating outputs, comprising:
- a contact output that turns ON/OFF according to detected pressures and that allows ON and OFF values to be set;
- a display means that digitally displays detected pressures and also digitally displays ON/OFF values of the contact output by switching an operation mode;
- a terminal board for connecting an external wire to the contact output;
- and
- an analog output that changes its output values according to detected pressures,
- wherein the analog output is directly drawn out from a substrate.
An electronic digital pressure switch for detecting a gas pressure and generating an output, comprising:
- a housing that has a ventilating portion allowing a gas to pass therethrough,
- wherein the ventilating portion is provided at an upper position of the housing when detecting the pressure of a gas that is lighter than air, while the ventilating portion is provided at a lower position of the housing when detecting the pressure of a gas that is heavier than air.
Dependencies are inferred from the claim text.