초록 ▼

There is a plurality of probes electrically connected to a central controller. Each of the probes is capable of providing a hydrocarbon signal, a water signal and a dry signal upon sensing these respective environments. The controller includes an audible alarm transducer and a switch for activating

There is a plurality of probes electrically connected to a central controller. Each of the probes is capable of providing a hydrocarbon signal, a water signal and a dry signal upon sensing these respective environments. The controller includes an audible alarm transducer and a switch for activating circuitry providing either a first alarm mode which provides an alarm in response to a hydrocarbon signal or a second alarm mode which provides an alarm in response to a hydrocarbon signal and also a water signal. A continuous alarm tone is provided upon receiving a hydrocarbon signal while an intermittent alarm tone is provided upon receiving a water signal. A yellow label links a “water”sign and the transducer and a red label links an “oil”sign and the transducer. The yellow label encircles only a small portion of the transducer and the red label encircles the major portion of the transducer so as to provide a visual indication that the shorter, intermittent tone indicates water while the longer, continuous tone indicates hydrocarbon.

대표청구항 ▼

In a fluid detector of the type comprising a plurality of probe means for sensing their fluid environment and for providing a hydrocarbon signal indicative of the presence of hydrocarbon in the probe environment, a water signal indicative of the presence of water in the probe environment, and a dry

In a fluid detector of the type comprising a plurality of probe means for sensing their fluid environment and for providing a hydrocarbon signal indicative of the presence of hydrocarbon in the probe environment, a water signal indicative of the presence of water in the probe environment, and a dry signal indicative that the probe environment is dry, and a controller means responsive to said signals from said probe means for providing an alarm, the improvement wherein said controller means includes: a means for selecting between a first alarm mode in which said alarm is provided only in response to a hydrocarbon signal from one or more of said probes and a second alarm mode in which said alarm is provided both in response to a hydrocarbon signal from one or more of said probes and also to a water signal from one or more of said probes; and means for providing a first audible alarm in response to said hydrocarbon signal and a second audible alarm in response to said water signal.