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w <br />Hydrostatic Sensor Installation Guide Single -Point Hydrostatic Sensor Installation <br />Single -Point Hydrostatic Sensor Installation <br />1. Turn Off power to the console. <br />2. Riser Cap Installation <br />a. If you have the plastic riser cap kit <br />Place the cord grip bushing into either of the threaded fittings in the plastic cap and screw the cord grip <br />nut over the bushing. With the nut loose, push the end of the sensor cable through the cord grip - don't <br />tighten the cable cord grip at this time. Place the cap in the riser and snap down the cap lever to seat the <br />gasket against the inside of the pipe. Screw the vent cap down snugly onto the other threaded fitting on <br />the riser cap. <br />b. If you have the metal riser cap and vent tube <br />Install the vent tube into one of the cord grips in the metal riser cap (ref. Figure 5) and tighten the cord <br />grip. Loosen the other cord grip and push the sensor cable through it - don't tighten the cable cord grip at <br />this time. Place the cap in the riser and snap down the cap lever to seat the gasket against the inside of the <br />pipe. <br />3. Install the cord grip from the Sensor Install Kit into the field junction box. Push the sensor cable into the <br />junction box through the cord grip. Using the wire nuts from the Sensor Install Kit, connect the sensor cable <br />to the console cable as shown in Figure 3. Tighten cord grip. <br />4. Seal wire nuts with epoxy sealant following the instructions in the Dual -Point Hydrostatic procedure (Step 6. <br />) above. <br />5. Turn On power to the console. <br />6. With the sensor resting on the top of the tank, mark the cable position at the riser cap with a piece of tape. <br />7. Pull the sensor up until it triggers an alarm on the console. Mark the cable position at the top of the cap with <br />a piece of tape. <br />8. Lower the sensor until the riser cap is halfway between the taped marks on the cable. <br />9. Secure the sensor in position by tightening the cable cord grip in the cap (see Figure 5). <br />Figure 5. Single -Point Sensor Installation (shown with metal riser cap and vent tube) <br />7 <br />14" min. dia. <br />Vent tube - CAUTION <br />tube must remain clear. <br />manhole I Cord grip <br />I <br />Concrete slab <br />or packed earth <br />- b <br />per NFPA SO <br />Riser pipe cap <br />Seal -off <br />Adjustable lead cable <br />1i2" rigid conduit <br />(to Console) <br />Single -point <br />hydrostatic sensor <br />`-- Weatherproof field <br />Riser pipe wiring junction box <br />Brine level <br />Reservoir <br />Double-wall <br />Double -wail tank <br />6enso*%hs1 eflf.e0a <br />Figure 5. Single -Point Sensor Installation (shown with metal riser cap and vent tube) <br />7 <br />