Hoefer Scientific Intruments PS500XT Power Supply

The Hoefer Scientific PS500XT is a 500 V/400 mA (200 W) DC power supply with eight programmable outputs, dual LED display for voltage and current, and an integrated timer and cooling fan. Common failure points on this model include capacitor degradation in the high‑voltage filter bank, fan motor burnout, and output voltage drift due to aging rectifier diodes or transformer winding loss. First‑check diagnostics: verify that the unit receives 115 V/60 Hz input and that the internal fuse (if present) is intact; inspect the cooling fan for operation and clean any dust buildup; measure each port’s output voltage and current against set values, noting any deviation beyond ±5 %.[oss-gpt-20b] Post Comment

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