KYOWA WGA-120A Instruction Manual page 56

① Calculate the cable resistance value.
Two-way cable resistance r (ohm) =
L: Cable length (m)
ρ: Cable resistivity (ohm・m)
S: Cable cross section(mm
When using Kyowa's extension cables (N-81 to 85, N-100), ρ is 1.7×10
② Calculate the correction value.
Correction value =
r: Two-way cable resistance (ohm)
A: Calibration constant
Table 4-2 Bridge resistance and A: Calibration constant
Bridge resistance (ohm) 87.5
A: Calibration constant
③ Multiply the measured value by correction value.
True value = Measured value × Correction value
2 × L ×ρ
S
2
)
r × A +1
120 350
0.0255 0.0177 0.0059 0.0020
-51-
6
× 10 (Formula 4-2)
-8
(ohm・m).
1000
(Formula 4-3)