The Panametrics MIS1‑211‑100000‑00 is a multichannel Moisture Image Series 1 analyzer that measures moisture, temperature, and pressure in non‑aqueous liquids or gases, with optional oxygen sensing. Common failure modes for this class include power supply instability (especially the 48 V DC rail), degraded sensor card connections or failed auxiliary input cards, and drift of internal calibration due to long‑term use or exposure to harsh chemicals. First‑check diagnostics: verify that the unit receives the correct input voltage and that the main power LED is solid; inspect all sensor and auxiliary card connectors for corrosion or loose contacts; review any error codes displayed on the front panel or in the log file for indications of card failure or calibration errors.[oss-gpt-20b]