The commutator motors are tested at the end of the production line. They have to meet the required performance and obtain a label with basic data (model, connection voltage, serial number, etc.). For this purpose, a measuring and marking device is being used in the production, but they wear out over time and have to be replaced. The replacement of the measuring and marking device is the reason for my analysis. I analysed the specific meters on which the measurements are performed, tested the reproducibility of the measurements and attempted to determine interruptions that cause any possible non-repeatable measurements.
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