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III. Critical Maintenance Specifications
| Magnetic bearing axial runout | ≤2μm | Laser vibrometer (ISO 2954) |
| Oil filter differential pressure | ≤0.5bar | Digital manometer (±0.1% FS) |
| Pressure switch response | ≤50ms | PCIe-1840 data acquisition card |
| Source: 2025 ASME Compressor Maintenance Standards35 |
