Industrial Troubleshooting

Finding faults in control circuits, drives and power supplies quickly.

The problem

Faults in industrial plants often appear as intermittent trips, drives that fault, or control circuits that behave unpredictably. Quick, accurate readings shorten the search.

Measurement required

Voltage and current under load, frequency and duty cycle on control signals, diode and continuity checks, and sometimes a recorder output to log current over time.

Instrument type

A high-accuracy True RMS multimeter with frequency and filter functions, plus a clamp meter or fork tester for currents without breaking circuits.

Relevant Kyoritsu instruments

Listed because their documented specifications cover this measurement. Check the full specifications for your exact requirement.

High basic accuracy, 1000 V ranges and CAT IV 600 V rating.

AC/DC current on small conductors in tightly packed wiring.

Frequency, duty cycle and diode functions for control-circuit checks.

Recorder output for logging current over time.

Frequency, duty cycle and MIN/MAX functions; clamp-sensor input to 200 A.

How to choose

Look for True RMS, a low-pass filter if you work on inverter outputs, MIN/MAX capture for intermittent faults, and a fork or small-jaw tester for crowded wiring.

Safety considerations

Industrial panels can carry high fault energy. Use CAT III or CAT IV rated instruments and leads, and keep fingers behind the probe guards.

Other applications

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