Why is the accuracy specified as ±5% of rdg even for the digital insulation testers ?
Descriptions in the catalogs and other sales literatures have been made based on JIS standards. Therefore, the term of “accuracy” which is generally used in the test and measuring instruments is not used for resistance measurements, but specified as “tolerance” instead. The term “rdg” means the value indicated by the instrument, and ±5% of rdg means there is allowable error of ±5% of ｔhe value displayed.
