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A <br />Features <br />71� <br />O Up to 4 Input Modules with <br />LED Indicators <br />O Audible and Visual Alarms <br />O Intrinsically Safe Interface <br />to Sensor <br />O Field -Proven Circuit Design <br />O NEMA Type 1 Enclosure <br />O Rugged Mechanical Design <br />O Liquid Level Sensors <br />• High Reliability <br />• UL Listed <br />• Compatible with Hydrocarbons <br />• Maintenance Free <br />O Alarm Contact Output per Sensor <br />for Remote Indication or <br />Telemetering <br />O Hydrostatic Leak Detector for <br />Double-wall Tanks <br />O Positive Pressure Sensor for <br />Pressurized Double-wall Tanks <br />0 * <br />Approved Listed 48R0 <br />11 <br />• <br />Irmo <br />he Model X76S Leak Detector System continuously <br />monitors underground storage tank installations for <br />leakage of gasoline, diesel oil, waste oil and other <br />hydrocarbons. <br />Two types of Liquid Level Sensors are horizontally or <br />vertically positioned in the normally dry annular space of <br />double -walled tanks. Upon accumulation of product due <br />to a leak, the sensor will provide an audible and visual <br />alarm. <br />Hydrostatic and air pressure sensors can provide <br />monitoring of both the outer or inner shell of a double- <br />wall tank. <br />The sensor's outputs are continuously supervised by <br />individual alarm modules via FM approved intrinsically <br />safe barriers. This allows installation of the sensors in <br />Class 1, Division 1, Groups C, or D areas as defined in <br />the National Electrical Code, without using costly <br />conduits, conduit seals and explosion proof junction <br />boxes. <br />The X76S provides up to four sensor alarms. <br />