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PAt tester - tester
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<blockquote data-quote="Mr Sworld" data-source="post: 24422" data-attributes="member: 184"><p>They are in a way. It's just that the PAT is testing a precise and known value for each of the tests. The results of what the PAT displays are recorded and compared to the known test values.</p><p></p><p>So a known resistance of 0.1056ohm is tested by the PAT for earth bond and the PAT displays 0.9ohm. Now you can calculate how acurate the PAT is and if it is within the calibration percentage.</p><p></p><p>We calibrate the tester once a year and just keep the results on file. I'm not sure if there is anything to say you must but you need to be confident that the results are true.</p></blockquote><p></p>
[QUOTE="Mr Sworld, post: 24422, member: 184"] They are in a way. It's just that the PAT is testing a precise and known value for each of the tests. The results of what the PAT displays are recorded and compared to the known test values. So a known resistance of 0.1056ohm is tested by the PAT for earth bond and the PAT displays 0.9ohm. Now you can calculate how acurate the PAT is and if it is within the calibration percentage. We calibrate the tester once a year and just keep the results on file. I'm not sure if there is anything to say you must but you need to be confident that the results are true. [/QUOTE]
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