Load Cell Wiring
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Rice Lake Weighing Systems
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7
3.0
Load Cell Wiring
1. Route the load cell cables so they will not be damaged or cut. Cable should
not be routed near heat sources greater than 150 °F.
Do not shorten any
load cell cable.
The load cell is temperature compensated with the supplied
length of cable. Cutting the cable will affect temperature compensation. Coil
and protect excess cable so it will not be mechanically damaged or be sitting
in water.
2. Provide a drip loop in all cables so that water or other liquids will not run
directly down the cables onto either the load cells or the junction box. Attach
load cell cable to the dead structure, not the vessel.
3. If conduit protection is necessary against mechanical or rodent damage to
the load cell cables, use flexible conduit and conduit adapters at the load
cells. Conduit can also provide protection against moisture ingress into the
load cell.
4. Connect cables for standard RL70000, RL70000SS, RTI 5103, RTI 9103
load cells or RL72010MH hermetically sealed load cells to the summing
board in the junction box according to the guide shown below and the labels
on the terminal strips of the junction box. To verify the wiring scheme, see the
certification shipped with each load cell.
5. For better performance, use positive and negative remote sense lines if the
wiring running from the junction box to the indicator is longer than 25 feet.
Load Cell Wire Color
Function
Red
+EXC
Black
–EXC
Green
+SIG
White
–SIG
Gray or Bare
SHIELD
Table 3-1. Load Cell Wiring
Drip
Loop
