Description
Kikusui Hipot Tester Repair
A Kikusui hipot tester (TOS-series safety tester) performs dielectric-withstand (hipot), insulation-resistance, and — on combined models — ground-bond testing for production safety compliance, applying high voltage and measuring leakage current to pass/fail products against a test timer and interlock. June Company repairs and calibrates Kikusui safety testers across the TOS range; tell us your exact model and we’ll confirm the repair.
Whatever the model, a Kikusui hipot tester combines an HV source with leakage metering, so faults span both the HV output and the measurement side.
Common Kikusui hipot tester problems we fix
- Timer-circuit faults — the test timer not running or wrong, repaired so dwell times are correct.
- HV output-stage failure — won’t reach test voltage or output unstable, rebuilt for stable rated output.
- Leakage-current measurement off — the metering your pass/fail depends on, recalibrated against standards.
- Ground-bond or IR function faults — restored where fitted.
- Interlock or control faults.
FAQs
Which Kikusui testers do you repair? Most of the TOS safety-tester range. Tell us the exact model and symptom and we’ll confirm the repair and turnaround.
Is the leakage metering recalibrated? Yes — HV output and leakage measurement are checked against our standards with a NIST-traceable certificate.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.









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