中文版
Description
Technical Specifications
| Product Model | **Bently Nevada 3500/15 129478-01** |
| Part Number | 129478-01 |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Product Type | Dual Proximitor® Power Supply Module (3500 Series Rack) |
| Input Voltage | +24 VDC (from 3500 Rack) |
| Output Voltage | -18 VDC (Dual Isolated, ±0.5% Stability) |
| Load Capacity | Supports up to 12 Proximitor® Sensors |
| Certifications | ATEX, IECEx, ISO 9001 |
Key Features & Advantages
The **Bently Nevada 3500/15 129478-01** is a compact power supply module (“小卡”) designed for critical proximity sensor systems. It provides redundant -18 VDC power to eddy-current probes (5 mm/8 mm) with galvanic isolation between channels. Features automatic load sharing and fault detection for open/short circuits. Integrated LED status indicators (Power OK, Channel Fault) enable rapid diagnostics. Compatible with Bently’s System 1® for predictive maintenance analytics.
129478-01
Supports hot-swapping in 3500 racks without shutdown. Conformal coating option (129478-02) protects against humidity and chemical exposure. Meets API 670 standards for machinery protection.
Applications
Essential in **gas turbines** for shaft displacement monitoring. **Oil refineries** use it for compressor thrust position sensing. **Hydroelectric plants** deploy it for generator air gap measurement. **Offshore platforms** rely on its reliability for pump bearing health monitoring. Also used in **steam turbines** and **rotating equipment** requiring ISO 13373 vibration analysis.
Related Products
**3500/25**: Vibration Monitor Module.
**3500/32M**: Relay Interface.
Installation & Maintenance
**Installation**: Insert into 3500 rack slot (4-slot configuration). Use shielded 18 AWG cables for probe connections; max cable length 300 m. **Calibration**: Verify -18 VDC output with ±0.1 V tolerance using Fluke 87V. **Maintenance**: Clean terminals annually with contact cleaner. Replace after 10 years service or if channel fault LED persists. Backup configuration via 3500/20 Rack Interface.
Product Assurance
Tested to MIL-STD-810G for shock/vibration resistance. 50,000+ hours MTBF. Includes 2-year warranty with 15-year lifecycle support. Complies with NEMA TS1 and ISO 10816-3. Bently Nevada’s Asset Condition Monitoring services provide calibration traceability to NIST standards.
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