Description
Fluke 1577 Insulation Multimeter Repair and Calibration
The Fluke 1577 is an insulation multimeter — it combines a digital multimeter with a 500 V/1000 V insulation resistance tester in one handheld, for electricians who need both functions. Its accuracy depends on the DMM measurement circuitry and the insulation-test high-voltage generator, so both are the focus of service and calibration.
June Company repairs and calibrates the Fluke 1577 for electricians and maintenance technicians.
Common Fluke 1577 problems we fix
- Insulation test won’t reach voltage — the 500/1000 V generator failing, repaired so insulation tests run at full voltage.
- DMM readings inaccurate — measurement-circuit drift, recalibrated against standards.
- A function dead — input or range faults, often after an overload, repaired.
- Input protection blown — fuse/protection repair.
- Display or battery faults.
FAQs
My 1577 insulation test won’t run — fixable? Yes. The insulation-test HV generator is repairable, then both the DMM and insulation functions are recalibrated, with a NIST-traceable certificate.
Do you calibrate both functions? Yes — multimeter and insulation-resistance ranges are checked against our standards.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.




Reviews
There are no reviews yet.