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0 <br /> PLLD Site Prep and Installation Guide PLLD Interface Module <br /> 0 <br /> Note: Throughout this manual, when mentioning any cable or wire being used for PLLD transducer-to-console wiring,it <br /> will be referring to shielded cable. <br /> Alternate Wiring Type-When Approved by the Local Authority Having Jurisdiction! <br /> #22 AWG stranded copper,shielded cable(REQUIRED)and manufactured with a material suitable for the environment, <br /> such as Belden 88761.Wiring to be installed as a Class l circuit with the following provisions: <br /> • Wire run must not exceed 750 feet to meet intrinsic safety requirments, <br /> • Capacitance does not exceed 100 pF/ft, <br /> • Inductance does not exceed 0.2µH/ft. <br /> Splices <br /> Veeder-Root recommends that no splices be made in the wire run between a PLLD transducer junction box and the <br /> console.Each splice degrades signal strength and could result in poor system performance. <br /> PLLD Interface Module <br /> 1. Run conduit from the Intrinsically Safe bay of the console to each STP manhole with a PLLD transducer installed. <br /> There are knockouts for 3/4-inch, 1-inch or 1'/4-inch conduit in the console's enclosure. When deciding on the size and <br /> number of conduits required,consider the number of wires entering the console. <br /> 2. Install a weatherproof electrical junction box with a Basketed cover for each PLLD transducer. <br /> IMPORTANT!The junction box in the STP manhole must be within 4-feet of the PLLD transducer.The junction box <br /> interior must be a minimum of 16 cubic inches with 1/2-inch NPT threads. <br /> 3. Pull shielded cable designed for use in the presence of gasoline and oil,from each PLLD transducer to the console <br /> (Figure 3-1). <br /> 4. Use gasketing or sealing compound at each entry to the junction box to keep it waterproof.Use a watertight cord grip <br /> at the PLLD transducer cable entry into the junction box. <br /> 5. IMPORTANT! Seal the conduit between the console and the PLLD transducer junction box within the submersible <br /> pump manhole and the boundary where they pass from a Class I,Division I area into a nonhazardous area in <br /> accordance with the National Electrical Code(NFPA 70)and the Automotive and Marine Service Station Code <br /> (NFPA 30A). <br /> 3-2 <br />