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f r <br /> t <br /> SiteSentinel iTouch Controller Tank Monitoring System 65 <br /> Disconnecting the sensor should trigger a high-level alarm. Shorting the sensor should <br /> generate a low-level alarm. Check all wiring and junction boxes to ensuring continuity <br /> without shorts. <br /> 30-3221 -1 A, -113 Interstitial <br /> Level Sensors <br /> About the 30-3221-1 A, 1 B <br /> j. <br /> Part# 30-3221-1 A Part# 30-3221-1 B <br /> The two types of interstitial level sensor are used primarily in the interstitial area of a <br /> double walled tank. The sensorcontains a float switch that activates in the presence of a <br /> liquid. The 30-3221-1A is constructed from chemical resistant non-metallic material <br /> and the 30-32214B is constructed from brass. <br /> It can also be used in sumps,dispenser pans and other locations where the presence of a <br /> liquid could indicate that a leak has occurred. In combination with a vapor sensor,this <br /> sensor can be used to monitor wet wells to ensure that a liquid is normally present. In <br /> the event of a break in the cable the sys-tem will activate the alarm. <br /> Specifications <br /> Operating Temperature —200C to +50°C (-4°F to +122°F) <br /> Dimensions 30-3221-1A 3.4 cm (1.3 in)dia.x <br /> 10 cm (3.9 in) long <br /> Dimensions 30-3221-1B 3.5 cm (1.4 in)dia.x <br /> 9.0 cm (3.5 in) long <br /> Cable 4.5 m (15 ft) gas &oil resistant <br /> To ensure safe operating conditions the sensor has been designed to connect to <br /> OPW Fuel Management Systems systems only. <br /> 8114109 <br /> Sensors:30-3221-1A,-1B Interstitial Level Sensors Sensors:30-3221-2 Dual-Level Reservoir Sensor <br />