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CONTAINMENT MONITORI y` g Alarm Contact Input Module/Model X76AM The X%AM Alarm Module provides for up to three contact inputs typically from the horizontal liquid level sensor LS-7, the Iis . vertical level sensor IS-3,the hydrostatic leak sensors LS-10 and LS-20 and/or the pressure decay sensor JT-2.The sensor contacts transfer if liquid is present in the annular space of a double-wall © °-•, tank,secondary containment pipes,manhole or caisson compartments.The alarm module monitors the status of the contacts and,should an abnormal condition occur.the front panel a.t . mounted LEDs will flash for visual alarm indication and the audible ® +' alarm turns on.The system ACK pushbutton allows the operator to µ silence the audible alarm and changes the flashing light to steady on,The green LED shows availability of power to the module and ♦�'' a ..', . the contacts.The module's integral switches allow selecdon of normally open(sensor contact open with no liquid)or normally closed(sensor contact closed with no liquid)sensor input signals r. to the alarm module. Liquid Level Sensor/Model LS-7 The Model LS-7 Liquid Level Sensor is designed for horizontal orientation applications where access is difficult, such as the bottom of dual-wall fiberglass ranks.The custom engineered unit provides highly reliable point level sensing.The plastic protected Reed switch guarantees long,trouble-free performance and compatibility with all hydrocarbon liquids. d i Liquid Level Sensor/Model LS-3 The Model LS-3 Liquid Level Sensor is most suitable for applications in steel and double-wall ranks.The sensor is positioned vertically,close to the bottom of the tank annulus or at maximum fuel level inside of the tank to prevent overflow.The all polysulfone level switch housed in a stainless steel outer Jacket features a totally sealed single pole,single throw contact a -i actuated by a float. J, 4