Description
Megger 247000 Low Resistance Ohmmeter Repair
The Megger 247000 (DLRO-series) is a digital low-resistance ohmmeter — it passes a known test current through a connection and measures micro-ohm-level resistance to verify breaker contacts, joints, bonds, and cable connections in substations and industry. Its character is current sourcing plus precision low-resistance measurement, so faults concentrate in the current source, the sense amplifier/measurement front-end, and the connections.
June Company repairs and calibrates the Megger 247000 for substation, switchgear, and maintenance crews.
Common Megger 247000 problems we fix
- Current-source recalibration — the test-current source out of spec or weak, repaired and recalibrated.
- Sense-amplifier faults — the micro-ohm sense/measurement front-end drifting or failing, repaired.
- Resistance readings out of spec — measurement drift, recalibrated against standards.
- Test-lead / connection faults — the current and sense connections, serviced.
- Display or power faults.
FAQs
My 247000 readings drift or the current is low — fixable? Yes. Current-source and sense faults are repairable, then recalibrated so micro-ohm readings are accurate at test current, with a NIST-traceable certificate.
Is the test current verified? Yes — checked along with the measurement against our standards.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.





