7
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.
4.
Connect cables for standard RL70000, RL70000 SS, RTI 5103, RTI 9103 load cells
or RL71000HE 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
Black
+EXC
Red
- EXC
Green
+SIG
White
- SIG
SHIELD
Gray or Bare
DRIP
LOOP
3. 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.
4. Junction Box Connections, Adjustments & Calibration
1.
Refer to Junction Box manual for trimming details.
2.
Refer to indicator manual or “Technical Information” section in Rice Lake Weigh-
ing Systems’ Load Cell Product Selection Guide for system calibration details.
