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5.5. Simpified Measurement
The 4 wires measurement has many advantages. The errors
due to the resistance of the test leads and the contacts as well
as R
and R
are eliminated. However, in some cases, for
A
B
example when using the high resistance range (2000 ohms) the
four wires method is not necessary to still have a good
percentage of accuracy (compared to the full scale). The
simplified method of two wires can be used without too much
problems, C
and P
can be shorted as well as C
and P
.
1
1
2
2
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