How do clamp on earth testers make measurements?
QClamp on earth testers measure grounding resistance by clamping the ground line. How do they calculate the resistance value?
A
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Please tell me about the internal resistance of analog testers.
QThe specifications of the HiTester 3030-10 and Multi Tester 3008 indicate an internal resistance of 20 kΩ/V. Please tell me about the effects of the tester’s internal resistance.
A
Difference between a Memory HiCorder’s maximum rated voltage to earth and its maximum input voltage
QIn the specifications for a Memory HiCorder input unit, a maximum rated voltage to earth as well as a maximum input voltage are listed. What is the difference between these two characteristics?
A
There’s a difference between the measured value and the inverter’s display value.
QI measured the secondary side of an inverter with a 3285 (3284), but the measured value differs from the value displayed on the inverter.
A