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FISite Preparation and In ation Instructions TLS-350 UST Monitorinstem ifCAUTION: DO NOT ALLOW PROBE TO FREEFALL AND/OR SHARPLY IMPACT THE BOTTOM OF THE TANK SHOCK TO THE PROBE FOOT WILL RE- SULT IN SEVERE PROBE DAMAGE. 7. Cut a length of flexible conduit leaving enough slack to remove the riser cap. 8. Remove cable bushing nut. Feed the two -wire probe cable up through the riser pipe cap bushing and adaptor. (See Figure 40, "Riser Pipe Cap Bushing and Adaptor.") FLEXIBLE METAL CONDUIT N." i (SUPPLIED WITH AST KIT) i 2 -WIRE CABLE I i STRAIGHT LIOUIDTIGHT i (SUPPLIED WITH PROBE) CONNECTOR -N." (SUPPLIED WITH AST KIT) ADAPTER (SUPPLIED WITH AST KIT) REMKE CORD GRIP TYP RSR6 (SUPPLIED WITH PROBE) O Figure 40. Riser Pipe Cap Bushing and Adaptor 9. Connect the adaptor to the cable bushing but do not tighten. 10. Continue to feed the cable through the conduit and conduit connectors. Leave enough slack in the cable between the cap and junction box to allow the cap to easily reach the riser pipe. In addition, leave enough slack under the riser cap to allow the probe to rest on the bottom of the tank. 11. Using wiring nuts, connect wires from the probe cable to the probe field wires in the junction box (see Figure 41). Be sure to observe proper polarity between the probe and monitor wiring during installation. The conduit must be properly sealed in accordance with the National Electrical Code (NFPA 70) and the Automotive and Marine Service Station Code (NFPA 30A) since they pass from a Class I, Division I or Division II area into a non -hazardous area. WEATHERPROOF JUNCTION BOX (1 PER PROBE) 1/2" RIGID CONDUIT y BIK • TO FROM MONITOR PROBE • + Wht Figure 41. Two -Wire Probe Field Wiring Installation Diagram 28 0 12. Seal wire nuts with epoxy sealant furnished with each probe, using one bag for two wire nut connec- tions. (Refer to Figure 26, "Epoxy Sealant for Two - Wire Connections.") 16 CAUTION: IF MORE THAN TWO WIRE NUT CONNECTIONS SHARE AN EPDXY SEALANT BAG, THE CONNECTIONS WILL RESULT IN INACCURATE PROBE READINGS AND POSSI- BLY FALSE ALARM CONDITIONS. WARNING: EPDXY SEALANT MAY BE IRRI- TATING TO EYES AND SKIN. MAY CAUSE SKIN SENSITIZATION IN SUSCEPTIBLE IN- DIVIDUALS. MAYBE ABSORBED THROUGH THE SKIN. EPDXY SEALANT CONTAINS EP- OXY RESIN AND VINYL CYCLOHEXENE DI- OXIDE. VINYL CYCLOHEXENE DIOXIDE HAS CAUSED SKIN CANCER IN ANIMAL TESTS. PRECAUTIONS: AVOID EYE AND SKIN CON- TACT. WEAR IMPERVIOUS GLOVES AND SAFETY GLASSES. USE ONLY IN WELL VEN- TILATED AREAS. 13. Tighten the cable bushing nuts on the probe riser cap and junction box to ensure a water -tight seal at the probe cable entry. (See Figure 42, "Junction Box Liquidtight Connector.") 14. Secure the riser locking cap to the top of the riser pipe. A padlock may be installed for added security. J -BOX STRAIGHT LIQUIDTIGHT CONNECTOR N." (SUPPLIED WITH AST KIT) Figure 42. Junction Box Liquidtight Connector SECTION 7. INTERSTITIAL LIQUID SENSOR INSTALLATION A. EQUIPMENT PREPARATION. WWARNING: TO AVOID ELECTRICAL SHOCK WHICH COULD KILL YOU, BE SURE AC POWER TO THE MONITOR IS OFF DURING INSTALLATION. 1. Turn OFF power to the TLS -350 system.