Description
Fluke 125B ScopeMeter Repair
The Fluke 125B is a 40 MHz two-channel handheld industrial ScopeMeter (120B series) with isolated inputs, bus-health testing, and Connect-and-View triggering for industrial and automation troubleshooting. With fully isolated inputs for safe floating measurements, its faults concentrate in the isolated input front-ends, the display, and the battery/power section.
FlukeServiceCenter.com repairs and calibrates the Fluke 125B for industrial electricians, automation technicians, and field-service engineers.
Common Fluke 125B problems we fix
- Input-channel restoration — a dead, noisy, or inaccurate channel from isolated front-end damage, repaired and recalibrated.
- Trigger-system faults — unstable or wrong triggering, corrected.
- Battery-cell failure — won’t hold a charge, the battery rebuilt or replaced.
- Display failure — blank, dim, or cracked display, repaired.
- Won’t power on or hold a charge — battery and power faults, serviced.
FAQs
A channel on my 125B is off — fixable? Yes. Isolated-input and trigger faults are repairable, then every channel is recalibrated so measurements are accurate, with a NIST-traceable certificate.
Are the inputs recalibrated? Yes — each channel is checked against our standards.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or request service.





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