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V Site Preparation and Int 'ation Instructions <br /> TLS-350 UST Monitoring __stem <br /> PRECAUTIONS:AVOID EYE AND SKIN CON- <br /> TACT. WEAR IMPERVIOUS GLOVES AND <br /> SAFETY GLASSES.USE ONLY IN WELL VEN- SENSOR WELL CAP <br /> TILATED AREAS. THREADED LOCKING HANDLE <br /> � o <br /> SECTION 13. GROUNDWATER SENSOR RETAINER SENSOR WELL CAP <br /> WATER-TIGHT SEAL <br /> INSTALLATION <br /> EXTRA SENSOR <br /> ( I LENGTH SHOULD <br /> WARNING:AVEEDER-ROOT GROUND- ) ( NOT EXCEED 2' <br /> WATER SENSOR SHOULD BE IN- <br /> STALLED ONLY IN WET WELLS I i <br /> WHERE: <br /> I I <br /> PRELIMINARY TESTING HAS DE- <br /> TERMINED THAT WATER IN THE i <br /> WELL IS NOT CONTAMINATED,OR SENSORPERFORATED PVC <br /> I I <br /> CONTAMINATED WATER HAS BEEN I I--MONITORING WELL <br /> REMEDIATED AND IS NOW CLEAN. I I HOUSING <br /> I I <br /> I I <br /> WARNING: TO PROTECT YOURSELF AND <br /> OTHERS FROM BEING STRUCK BY VE- <br /> HICLES DURING WORK, BLOCK OFF YOUR I I <br /> WORK AREA DURING INSTALLATION AND WATER FLOAT I I <br /> (2"-4"ABOVE <br /> SERVICE. BOTTOM OF WELL) <br /> I � <br /> WARNING: TO AVOID ELECIAICAL SHOCK <br /> WHICH COULD KILL YOU, BE SURE AC <br /> POWER TO THE TIS MONITOR IS OFF DUR- <br /> ING INSTALLATION. <br /> 1. Turn OFF AC power to the TLS system. Figure 67. Groundwater Sensor Installation. <br /> 2. Remove any existing cap from the monitoring well. (A <br /> new cap is supplied with the Veeder-Root Groundwater <br /> Sensor.) <br /> 3. Lower the groundwater sensor into the monitoring well <br /> until the water float touches the bottom of the well. FUEL RED <br /> • <br /> 4. Raise the sensor 2"to 4"from the bottom of the well and TO GROUND BLACK GROUND- <br /> mark the sensor with a piece of tape at the point evenCOTILS WATER <br /> NSOLE • SENSORwith the top of the well casing. WATER • WHITE <br /> 5. Secure the sensor at the point marked with the tape to <br /> the retainer under the sensor well cap. Allow any <br /> JUNCTION BOX <br /> excess sensorlength(should be no more than 2')to hang <br /> loosely from the retainer.See Figure 67,"Groundwater Figure 68. Groundwater Sensor Field Wiring Diagram. <br /> Sensor Installation." <br /> must be properly sealed in accordance with the Na- <br /> b. Press the sensor well cap into the top of the well with the tional Electrical Code (NEPA 70)and the Automotive <br /> excess sensor length hanging inside the well housing. and Marine Service Station Code (NFPA 30A) since <br /> 7. Pass the end of the three-wire sensor cable in through they pass from a Class I,Division I or Division 11 area <br /> the cable bushing nut of the sensor junction box. into a non-hazardous area. <br /> NOTE: The groundwater sensor comes equipped 9• Seal wire nuts with epoxy sealant usingone bag for two <br /> with a cable and plug-in connector.If the cable is not wire nut connections and another bag for the third wire <br /> installed on the sensor well cap, plug it into the <br /> nut connection.(Refer to Figure 58,"Epoxy Sealant for <br /> Three-Wire Connections.") <br /> mating connector on top of the cap and lock in <br /> position. CAUTION: IF MORE THAN TWO WIRE NUT <br /> 6 CONNECTIONS SHARE AN EPDXY SEALANT AM= <br /> 8. Using wiring nuts, connect the wires from the sensor BAG,THE CONNECTIONS WILL NOT BE PROP- _N'm <br /> cable to the sensor field wires in the junction box(see ERLY SEALED, IMPROPER SEALING OF THE <br /> Figure 68, "Groundwater Sensor Field Wiring Ilia- CONNECTIONS WILL RESULT ININACCURATE <br /> gram").Be sure to observe proper polarity between the SENSOR READINGS AND POSSIBLY FALSE <br /> sensor and monitor wiring installation. The conduit ALARM CONDITIONS. <br /> 40 <br />