Description
Megger SMRT1 Relay Tester Repair
The SMRT1 is the single-phase end of the SMRT family — a compact, lightweight relay test set carried by technicians who need one channel of clean voltage and current for routine overcurrent, timing, and pickup/dropout checks. Because it’s the unit that rides in the truck and gets used daily, the failures we see are field-wear failures, not lab failures.
June Company repairs and calibrates the SMRT1 for relay technicians and protection crews who rely on it as their everyday workhorse.
Common SMRT1 problems we fix
- Output won’t reach rated current — the single amplifier is the heart of a one-channel set; when it weakens, every test is off. We rebuild the output stage so it sources full rated current again.
- Pickup/dropout readings drift — sense-input or measurement-circuit drift that makes threshold tests unrepeatable, corrected and recalibrated.
- Won’t hold a charge / won’t run on battery — battery pack degradation on this portable unit, replaced and the charging circuit checked.
- USB or PC control dropped — interface fault that stops it talking to the test software.
- Front-panel or display issues — keypad and display wear from daily field handling.
FAQs
My SMRT1 output is weak — worth repairing? Yes. On a single-channel set the amplifier is the whole instrument, and rebuilding it is far cheaper than replacement. We restore full rated output and recalibrate.
Can you verify timing accuracy? Yes — pickup, dropout, and trip-time are checked against our reference 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.






