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Sensor Installation <br /> 1. Turn Off power to the console. <br /> 2. Make sure no liquid is present in the annular space. Do not install the sensor if any liquid is present in the <br /> annular space. <br /> AFailure to remove any liquid in the annular space will lead to an alarm. <br /> 3. Measure the length of the riser pipe as shown in Figure 2. <br /> Weatherproof Junction box with <br /> 14" min. dia. 1/2-inch N.P.T. threads (16 Cubic <br /> manhole inch volume minimum) <br /> Cord grips <br /> a . P F <br /> Seal-off <br /> �- 1/2" rigid conduit <br /> (to Console) <br /> Riser length <br /> 4" dia. riser <br /> Part number <br /> Sensor Switch must -q, Fiberglass tank <br /> reach bottom of tan <br /> Figure 2. Example Sensor Installation <br /> 5 <br />