초록 ▼

Apparatus for monitoring the diaphragm integrity in a diaphragm pump. A single continuous circuit trace is supported on a pump diaphragm. An electrical circuit is connected to the continuous circuit trace for measuring both the continuity and a potential ground fault condition between the circuit tr

Apparatus for monitoring the diaphragm integrity in a diaphragm pump. A single continuous circuit trace is supported on a pump diaphragm. An electrical circuit is connected to the continuous circuit trace for measuring both the continuity and a potential ground fault condition between the circuit trace and pumping liquid. The circuit trace is formed in a configuration which resists the effects of strain induced by continuous flexing of the diaphragm.

대표청구항 ▼

An apparatus for determining a pump diaphragm failure comprising: a single continuous circuit trace supported by said diaphragm, and insulated therefrom, and from a pumping medium, traversing substantially the entire surface area of said diaphragm; an electrical circuit means connected to said conti

An apparatus for determining a pump diaphragm failure comprising: a single continuous circuit trace supported by said diaphragm, and insulated therefrom, and from a pumping medium, traversing substantially the entire surface area of said diaphragm; an electrical circuit means connected to said continuous circuit trace for measuring both circuit trace continuity and a ground fault condition between said circuit trace and a pumping environment, whereby a diaphragm failure is detected when either said circuit trace electrical continuity is broken or said pumping environment comes into contact with said continuous circuit trace; and, an alarm connected to said electrical circuit for indicating said diaphragm failure. A method for detecting a failure of a diaphragm separating two liquid mediums, comprising: disposing a continuous circuit trace over a major portion of said diaphragm; measuring the continuity of said circuit trace; measuring a current flowing between said circuit trace and one of said liquid mediums; and indicating a failure when either said continuity of said circuit trace changes or said current flowing between said circuit trace and said liquid medium changes.