8.4
Probe & Sensor Conduits
All installations must be carried out in accordance with local regulations.
Rigid steel conduit, which may or may not be required, should be used
whenever possible.
Each VSmart Module is equipped with four (4) ½- to ¾-inch (13 to 19
mm) knockouts to accommodate conduit for probe cables and sensor
wiring. Additional knockouts are provided for power and
communication wiring conduits.
Refer to the following table to determine the number and size of
conduits required between each VSmart Module and its corresponding
probes and sensors. Probe and sensor wires must be grouped into
single dedicated conduits for each barrier.
8.4.1 Circuit Breaker Conduits
Run ½-inch (13 mm) conduit from the power knockout in the console
to the circuit breaker box. Run a corresponding ½-inch (13 mm)
conduit from the power knockout in each VSmart Module to the circuit-
breaker box. This conduit may also contain Petro-Net™ wiring.
8.4.2 RS-232 Communications Conduits
If a terminal or PC located more than 6 feet (1.8 m) from the console is
to be connected, conduit must be installed to accommodate the RS-
232 cable.
This cable must be no longer than 50 feet (15.2 m). The maximum
runs are 5,000 feet (1,524 m) for RS-485 communication cables,
and 300 feet (100 m) for Ethernet communication cables.
Run ½-inch (13 mm) conduit from a knockout on the SiteSentinel®
console to a knockout on the VSmart Module for communication
wiring.
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