Granville-Phillips 354006-YM-T Micro Ion Gauge

The Granville‑Phillips 354006‑YM‑T is a Micro‑Ion vacuum gauge module that provides pressure measurement from <1×10⁻⁹ Torr to 5×10⁻² Torr with an RS‑485 digital interface and optional analog output. Common failure points for this class of ion gauges include degradation of the ionization chamber (contamination or sputtering), loss of vacuum seal leading to leakage, and aging of the high‑voltage power supply causing drift or shutdown. First‑check diagnostics should verify that the module’s 48 V DC input is present and stable, confirm RS‑485 communication by reading status registers, inspect the gauge housing for cracks or residue, and review any error codes returned via the digital interface.[oss-gpt-20b]

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