Rice Lake RL1900 Series - Manual (Page 7)

5
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 (66
°
C). 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
excess cable and protect it 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.
4. Connect cables for standard RTI SSB and HBM SB3 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. If the wiring from the junction box to the indicator is longer than 25 feet, use
positive and negative remote sense lines for better performance.
LOAD CELL WIRE COLOR FUNCTION
Black
-SIG Red
- EXC
Green +EXC
White +SIG
SHIELD Gray or Bare
DRIP LOOP