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General & Technical FAQ

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Earth Testers

Insulation Testers

634960

2018-08-14
Repair
2018-08-14
Warranty Policy and Provision
2018-08-14
Repair after the warranty period has expired

Question before purchases

2018-08-14
Spare Parts Request
2018-08-14
Service & Calibration Manual Request

Question after purchases

2018-08-14
Display numerals change when the digital multi-meter is powered on.
2018-08-14
Clamp meter operating principles.
2018-08-14
Digital multi-meter measurement error calculation method
2018-08-14
What are the tester overvoltage categories?

Technical Queries