In high-value resistance measurements, the use of incorrect type connecting cables can lead to measurement errors.
For resistance measurements above 1 MOhm, it is important to use the correct type of connection cables.
PVC INSULATED connecting cables create additional resistance. This resistance is important for measurements above 1 MOhm. The connecting cables run parallel to the resistance to be measured, resulting in lower resistance.
COAXIAL SCREENED connecting cables provide shielding and great insulation resistance, so accurate measurements of more than 1 MOhm can be made. Examples of incorrect and correct connection cables for high resistance measurements:
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