Description
Keithley 2601B Source Measurement Unit Repair
The Keithley 2601B Source Measurement Unit is a multi-product calibrator – it sources voltage, current, resistance and other quantities to calibrate a bench of instruments. Because each capability runs through its own output stage, a fault normally removes one function and leaves the rest working perfectly.
Certified technicians at June Company service the Keithley 2601B Source Measurement Unit for calibration laboratories, instrument workshops, and in-house metrology programs. Every instrument is repaired at component level and verified against reference standards before it ships back, with the measured results documented.
Common Keithley 2601B Source Measurement Unit problems we fix
- One function failing while the others work – the characteristic pattern, and the reason a single failed output rarely means a failed instrument.
- Readings drifted out of tolerance – corrected and verified against reference standards.
- Current output stage failure.
- Resistance or capacitance synthesis faults.
- Range switching and relay faults.
- Cooling fan or thermal shutdown.
- Internal power supply faults.
- GPIB, LAN, USB or remote-control faults – which breaks automated test sequences while the instrument still works from the front panel.
- Display, keypad or front-panel faults.
FAQs
Only one output function is wrong. Smaller repair? Usually. The output stages are largely independent, so a single failing function tends to be contained.
Do you verify every function or just the reported one? Every function. Checking only the reported fault is how a second drifting output leaves undetected.
Every repair carries a 90-day parts-and-labor warranty, with a firm quote before any work begins. Email us or submit a service request.







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