XS series operating manual
XS user manual v0.55 - 139 -
Precautions to be observed
The measured resistance values being very low (< 1 ohm), it is necessary to perform the measurement
in using the 4 wire method to avoid the measurement lead parasitic resistance (interfaces, adapters , ...)
It is necessary to warrant this measurement principle when connecting the measurement unit to the test
points.
If specific connections have to be done, it is necessary to use correctly rated cables (at least 5A/mm
2
) for
the current and to connect voltage measurement cables as close as possible to the measured points.
During the test time, it is advised not to move the probe to avoid breaking the current flowing which will
produce sparks. This can modify the real total test time and can alter the contact surface of the
specimen.
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