Are ammeters and voltmeters subject to mandatory calibration or self-checking, and what is the calibration interval?
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This post was last edited by WANGJIABAO on 2016-6-2 at 15:50. Are the ammeter and voltmeter on welding machines subject to mandatory calibration or self-checking, and what is the calibration interval?
The ammeter and voltmeter on the welding machine serve for monitoring purposes; they are not metering devices subject to mandatory calibration. The calibration interval can be determined based on the level of usage, and it is generally 1 to 2 intervals longer than what is specified in the calibration regulations.