Rice Lake TradeRoute HL Series - Low Profile Installation and Setup for Models from 2011 and Older 128406 - Manual (Page 26)

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Figure 15 – Reed Switch and Magnet Location
15.7 Set Point Relay (Optional)
The Set Point relay allows the operator to select a target weight (or set point) to be
delivered. The indicator and control box then controls the delivery pump, shutting the
pump off when a target weight has been unloaded or loaded.
The connections for the Set Point Relay are found on cable 42760-04. Cable 42760-04 is
connected to the 10 pin header on the circuit board. It will have 2 conductors, a red
and a black, with spade terminals on the end that are unconnected inside the box. The
red conductor is the hot line and the black conductor is ground. Connect a cable to the
red and black conductors. Route this cable out of the Control Box to the coil of the
Relay that will be used to activate the delivery pump. Mating spade terminals can be
purchased from Rice Lake Weighing Systems (Norac P/N 105952). Below is a schematic
of how the relay should be connected to the Control Box. It would be a good idea to
include a diode (if relay does not include one) across the coil leads to prevent voltage
spikes onto the system that could damage the Control Box.
Note: It is strongly recommended that a delivery switch is installed. If there
is no delivery switch, the pump could start before the user is ready to
deliver. This can cause improper dispensing of product.
Note: It is strongly recommended that a manual override switch is installed.
If there is no manual override switch, and the relay fails during a delivery, the
delivery pump will stop running.