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Veeder-Root TLS-IB User Manual

Veeder-Root TLS-IB
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17
Site Prep - U.S and Canadian Installations
National Electrical Code Compliance
The following information is for general reference and is not intended to replace recommended National Electric Code
(NEC) procedures. It is important f or the installer to understand that electrical equipment and wiring located in Class I,
Division 1 and 2 installations shall comply with the latest appropriate Articles found in the National Electric Code
(NFPA 70) and the Automotive and Marine Service Station Code (NFPA 30A).
PROBE-TO-CONSOLE WIRING
Wire Type
To ensure the best operating systems available, Veeder-Root
REQUIRES
the use of shielded cable for all probes
regardless of conduit material or application. In these installations, shielded cable must be rated less than 100 picofarad
per foot and be manufactured with a material suitable for the environment, such as Carol™ C2534 or Belden 88760,
8760, or 8770.
Note: Throughout this manual, when mentioning any cable or wire being used for probe-to-console wiring, it will be
referring to shielded cable.
Wire Length
Improper system operation could result in undetected potential environmental and health hazards if the probe-to-console
wi re run s ex c ee d 1000 fe et . Wire run s m u st be less th a n 1000 fee t to m ee t in t rin si c safe ty requ iremen t s.
Splices
Veeder-Root recommends that no splices be made in the wire run between a probe junction box and the console. Each
splice degrades signal strength and could result in poor system performance.
Wire Gauges - Color coded
Shielded cable must be used in all installations. Wires should be #14-#18 AWG stranded copper wire and installe d as a
Class 1 circuit. As a alternate method when approved by the local authority having jurisdiction, 22 AWG wire such as
Belden 88761 may be suitable in installations with the following provisions:
-
Wire run is less than 750 feet
-
Capacitance does not exceed 100 pF/foot
-
Inductance does not exceed 0.2
μ
H/foot
Total cable length per installation 22,000 feet.
POWER WIRING
Wires carrying 120 or 240 Vac from the power panel to the console should be #14 AWG (or larger) copper wire for line,
neutral and chassis ground (3); and #12 AWG copper wire for barrier ground.
PROBE JUNCTION BOXES
Weatherproof electrical junction boxes with a gasketed cover are required on the end of each probe conduit run at the
manhole or monitoring well location. Gasketing or sealing compound must be used at each entry to the junction box to
ensure a waterproof junction. The interior volume of each junction box must be a minimum of 16 cubic inches.
Veeder-Root recommends the f ollowing junction boxes or equivalent:
Appleton Electric Co. - JBDX junction box, JBK-B cover, and JB-GK -V gasket.

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Veeder-Root TLS-IB Specifications

General IconGeneral
BrandVeeder-Root
ModelTLS-IB
CategoryControl Systems
LanguageEnglish

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