Product Description
Metrix 5485C‑007‑010‑M1377 high‑temperature moving‑coil velocity transducer, self‑generating seismic sensor with no external power supply. Widely deployed for casing‑vibration monitoring on GE heavy‑duty gas turbines Frame 5/6/7/9.
Model code breakdown
‑ 5485C: High‑temperature velocity transducer series, max surface temperature 375℃
‑ 007: Sensitivity 150 mV/ips, coil resistance 105 Ω
‑ 010: Integral armored high‑temp cable length 10 ft (≈3 m)
‑ M1377: Factory‑special revision code, 4‑hole flange base, integral armored cable, hermetically‑sealed stainless‑steel housing, hazardous‑area approvals.
Zero‑friction spring‑suspended moving‑coil design with electromagnetic damping. Output AC signal proportional to vibration velocity. Welded hermetic sealing for hot casing measurement. Signal feeds into TSI/vibration monitor systems. OEM available; new‑original, surplus and calibrated refurbished units available.
Technical Specifications
| Item | Specification |
|---|---|
| Full Model | 5485C‑007‑010‑M1377 |
| Product Type | Self‑Generating Moving‑Coil High‑Temperature Velocity Transducer |
| Sensitivity | 150 mV/ips (±5% @100 Hz) |
| Coil Resistance | 105 Ω @25℃ |
| Frequency Response | 15 Hz‑2000 Hz (±3 dB) |
| Operating Temperature | ‑54℃ ~ +375℃ |
| Max Acceleration | 50 g |
| Max Peak‑Peak Displacement | 1.8 mm (70 mils pk‑pk) |
| Cross‑Axis Sensitivity | ＜10 % |
| Sensitivity Temp Drift | ≤‑0.02 %/℃ |
| Cable | Integral stainless‑steel armored high‑temperature cable, 10 ft (≈3 m) |
| Housing Material | 416 stainless‑steel, hermetically welded seal |
| Mounting | 4‑hole flat flange base |
| Certifications | UL / CSA / ATEX Ex ia IIC T1‑T6; Class I Div 1/2, Zone 0/1/2 (requires safety barrier)ManualsLib |
| Weight | Sensor body approx.0.2 kg; cable approx.0.2 kg/m |
| Storage Temperature | ‑55℃ ~ +400℃ |
| Country of Origin | USA |
Product Application
- Casing vibration measurement for industrial gas‑turbines & steam‑turbines; standard for GE Frame‑series gas turbines.
- Vibration monitoring for high‑temperature fans and furnace fans.
- Interface with Bently / Metrix TSI systems for machinery vibration protection & interlock.
- Spare‑part replacement for thermal‑power & combined‑cycle power‑plants.
Related Series Models
‑ 5485C‑002‑XXX: 105 mV/ips sensitivity variant
‑ 5485C‑004‑XXX: 145 mV/ips sensitivity variant
‑ 5485C‑006‑XXX: 200 mV/ips sensitivity variant
‑ 5485C‑XX‑XX‑MXXXX: M‑suffix denotes factory‑custom build
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