How do contactless phase detectors work?
QHow can the contactless Phase Detector 3129 detect the phase without making contact with the conductor?
A
Select your region & language
Americas
Europe
East Asia
Southeast Asia, Oceania
India
Measurement frequency switching on earth testers
QThe Earth HiTester 3151 has frequency switch settings such as 3a and 3b. What are these? Which should I use in normal measurement?
A
Current dependency and voltage dependency
QWhat can you tell me about sample current and voltage dependency?
A
Is HIOKI’s optional PC card the only one I can use?
QCan I use any company’s PC card in my HIOKI power meter or Memory HiCorder?
A
Differences between the 3390 and 3390-10
QHow do the functions of the 3390 and 3390-10 differ?
A
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
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