Rice Lake TradeRoute HL Series - Installation and Service Manual (Legal-for-Trade) - Manual (Page 25)

Cell #2
Cell #1
Cell #3
Cell #4
Scale Installation 21
Figure 2-22. Load Cell Numbering for Four-Point System
2.12.1 Load Cell Connections
1. The load cell wires need to be routed from the modules to the indicator. The junction box must be mounted
where it is easily accessible and in a location that protects it from the elements.
2. Measure lengths of conduit to pass the load cell wires through. The conduit must reach from near the load
cell to the junction box. See Section 2.10 for installation of the conduits connectors.
3. Feed load cell wires through conduit. The load cell wires must have a small amount of loose wire between
the conduit and the load cell. The load cell wire must be loose to allow the scale to swing freely.
4. Wire load cell wires to the circuit board in the weigh center. Load cell wires may be cut to reduce the
amount of wire looped inside the weigh center.
Important
Load cell wires must not be cut closer than six feet away from the load cell (i.e. at least 6 feet of wire must
be left attached to the load cell). The scale must be balanced and calibrated AFTER cutting load cell
wires.
5. For each load cell, attach the load cell cable to the junction box according to Table 2-1. The wiring color
code for the load cells is also shown.
6. The indicator connection must also be completed if using a junction box. Route conduit and scale cable
from the junction box to the indicator.
2.12.2 Junction Box Connection
The indicator terminal strip is used to connect the main cable to the indicator which is shown in Figure 2-22.
Determine the indicator’s load cell input connections from the operating manual. Run a cable from your indicator
terminal into the junction box and make the connections. The following table shows the correct junction box
connections using the cable color code.
Table 2-1. Junction Box Connections
Cable Color Code Junction Box
Red + Excitation
Black - Excitation
Green + Signal
White - Signal
Brown Shield
Yellow + Sense
Blue - Sense