Esterline Angus MS401C chart recorder

The MS401C is a rack‑mounted analog chart recorder used for continuous data logging in industrial process control. Common failure points on this class of equipment include power supply degradation (especially the 12 V DC regulator), worn or corroded input/output contacts, and mechanical wear of the recording pen or carriage. First‑check diagnostics: verify that the unit receives proper mains voltage and that the internal DC supply outputs correct levels; inspect all I/O connectors for loose or oxidized pins; visually examine the pen mechanism and paper path for obstructions or damage.[oss-gpt-20b]

Need your Esterline Angus repaired or tested?

We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.

⚙️ Fast Diagnostics – Same-day evaluation available
🔁 Reliable Turnaround – Most jobs ship within 5–10 business days
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