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Determining the Resistance for Adjustment of the Off-center Load
Determining Resistance Values
- Place the test weight on each load cell in turn and write down each displayed
value.
- Using the lowest displayed value as the basis, calculated the resistance values
for the other load cells in accordance with the following equation:
Equation:Equation:
Equation:Equation:
Equation:
RR
RR
R=
RR
RR
R(0) x
GG
GG
G(D) /
GG
GG
G(T)
RR
RR
R = required resistance (in ohms)
RR
RR
R(0) = Initial resistance in the load cell being adjusted (in ohms), (if not specified
in the specification sheet) measured between Signal + (OUT_POS, positive
measuring voltage) and Signal - (OUT_NEG, negative measuring voltage).
GG
GG
G(D) = Difference between lowest off-center loading error (from reference load
cell) and the off-center load value displayed for the weigh cell (in kg).
GG
GG
G(T) = Test weight applied (in kg)
- Solder the required resistor into the bridge of the load cell being adjusted.
- Then perform calibration/adjustment again.
Adjusting the Weighing Platform