Description
Fluke 1577 Insulation Tester Repair
The Fluke 1577 is an insulation multimeter — it combines insulation resistance testing (to 1000 V) with true-RMS multimeter functions (AC/DC voltage, resistance, continuity) in one handheld tool for electricians and maintenance technicians. Its accuracy depends on the HV insulation generator and the multimeter measurement circuitry, which is where service and calibration focus.
FlukeMeterRepair.com repairs and calibrates the Fluke 1577 for electricians and maintenance crews.
Common Fluke 1577 problems we fix
- Insulation-test / HV faults — won’t reach test voltage or the insulation function reads wrong, repaired.
- Multimeter function faults — a voltage/resistance/continuity function dead, often after an overload, repaired.
- Readings out of spec — measurement-circuit drift, recalibrated against standards.
- Display or battery faults — repaired.
- Input protection blown — repaired after a miswire.
FAQs
My 1577 insulation or meter function is off — fixable? Yes. HV and measurement faults are repairable, then the tester is recalibrated so insulation and multimeter functions read accurately, with a NIST-traceable certificate.
Do you calibrate both functions? Yes — insulation and multimeter ranges are checked against our standards.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or request service.
Hank Green –
Our Fluke 1577 stopped powering up even when we changed batteries. June Company repaired and calibrated our meter the same week. Great job.