System Hardware and Installation Tunnel Master
Jr. User Manual—Version 3.0
22 January 2016
GATE SWITCH (ELECTRIC EYE) WIRING
See the wash equipment provider for location of this relay.
The following diagram to the Smart Relay Box starts at the control relay for
the sensing device being used. The diagram shows how to wire the Gate
(electric eye) switch into the Relay B
ox.
!
IMPORTANT: The Gate switch is the second critical input
device to the Relay Box. It is usually an electric eye system or
some type of vehicle position detector located just before
the first piece of wash equipment. This switch signals the
Controller that a
vehicle is starting through the tunnel. All
equipment turn on points are measured from this switch to
the particular piece of equipment.
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