Portable gas pressure monitor with independently adjustable high

Details Portable gas pressure monitor with independently adjustable high Portable gas pressure monitor with independently adjustable high

1994-10-17

1996-08-06

Brock, Michael J.

Measuring and testing

With fluid pressure

Leakage

340626, G01M 328

Patent

active

055422870

ABSTRACT:
A portable gas pressure monitor includes a pressure sensor which may be coupled to a pipeline tap downstream of a work area, and first and second comparator circuits receiving the signal from the pressure sensor and comparing the pressure signal with a low pressure set point and a high pressure set point. The two set points define a safe range for the pressure of the gas being monitored. If the sensed gas pressure falls below the low set point one audible signal is generated, and if the sensed pressure exceeds the high set point, a distinctly different audible signal is generated, thus immediately and unequivocally alerting operating personnel of the nature of any alarm. The pressure is also displayed for the operator.

REFERENCES:
patent: 4091658 (1978-05-01), Covington et al.
patent: 4100537 (1978-07-01), Carlson
patent: 4187842 (1980-02-01), Schreiber
patent: 4598279 (1986-07-01), Nowacki et al.
patent: 4990894 (1991-02-01), Loescher et al.
patent: 5057822 (1991-10-01), Hoffman
patent: 5230563 (1993-07-01), Shalvi

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