What are PI (polarization index) and DAR (dielectric absorption ratio) values? (High Voltage Insulation Tester)

QWhen is the PI (Polarization Index) and DAR (Dielectric Absorption Ratio) of the High Voltage Insulation Tester IR3455 used? Also, how is it calculated?

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Resistance Measurement Range Settings, Communication Commands

QI’m communicating the Resistance HiTester RM3543 with the RS-232C interface, but it does not work even if I set the command (message) of "Measurement range". What are the possible causes?

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Unable to install the application software "LR5000 Utility"

QCannot install the application software "LR5000 Utility" which comes with Hioki's data logger. How can I install it? My PC is Windows 10.

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Can Clamp on Power Meters be used to measure the secondary side of an inverter?

QMeasured the power consumption of a motor powered by an inverter with a Clamp on Power Meter, but the measured values are not what I expected. Why is this?

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Calibration of models LR8520 and LR8514

QWhy does the Wireless Fungal Logger LR8520 and Wireless Humidity Logger LR8514 not require calibration? Do I only need to calibrate the Humidity Sensor Z2010 and Z2011?

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  • Auto-range Integration (Power Meter)

    QPower Meter PW3335 has an auto-range integration function that allows integration measurements with the current range switched to "Auto (Automatic)." Can the same integration measurements be made with the PW3336 and PW3337 power meters for three-phase lines?

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