How often should I have my PAT tester calibrated?


The IEE code of practice recommends calibration of a PAT tester be peerformed on an annual basis on in accordance with the manufacturer's instructions.

Howeverm for low usage equipment, the on-going accuracy of test equipment can be assessed using either a reference circuit or checkbox and records are maintained. If regular checks are carried out and there is no deviation in performance then these results could be used as justification for extending the calibration interval.

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