Description
Vitrek PA904AD Power Analyzer Repair
The Vitrek PA900-series (PA904AD) is a precision 4-channel power analyzer — it measures voltage, current, power, energy, and standby/low-power consumption with high accuracy across a wide bandwidth for power-conversion, efficiency, and standby-power testing. As a precision power-measurement instrument, its faults concentrate in the input channels, the current/voltage measurement front-ends, and the ADC/measurement system.
June Company repairs and calibrates the Vitrek PA904AD for power-electronics, efficiency, and standby-power test teams.
Common Vitrek PA904AD problems we fix
- Standby / low-power measurement out of spec — the sensitive low-power measurement drifting, recalibrated against standards.
- Input-circuit restoration — a voltage or current input damaged (often by an over-range event), repaired.
- Current-measurement drift — the current front-end, recalibrated.
- A channel dead — per-channel faults, repaired.
- Communication or display faults.
FAQs
My PA904AD standby-power readings are off — fixable? Yes. Input-circuit and measurement faults are repairable, then channels are recalibrated so power and standby measurements are accurate, with a NIST-traceable certificate.
Are all channels verified? Yes — each input is 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.






