Description
Key Technical Specifications
- Product Model: BENTLY 3500/22M 288055-01
- Manufacturer: Bently Nevada
- Product Type: Transient Data Interface (TDI)
- Communication: 10Base-T/100Base-TX Ethernet (Auto-detect)
- Fiber Option: 100Base-FX Input/Output
- Configuration Port: USB-B (Front Panel)
- Power Consumption: 10.5 Watts
- Rack Position: Slot 1 (Adjacent to Power Supply)
- Waveform Capacity: Up to 48 Channels (Simultaneous Sync/Async)
- Transient Buffer: Pre/Post Trigger Data (Limited by RAM)
- Relay Output: Module OK / Rack Fault (5A @ 24VDC/120VAC)
- Diagnostics: OK, TX/RX, TM, CONFIG OK LEDs
Product Introduction
Your System 1 software shows “Comm Failed,” but the 3500 rack is still tripping normally. The BENTLY 3500/22M 288055-01 is the data bridge that needs replacement. This isn’t a protection module; it’s the Transient Data Interface (TDI) responsible for scooping high-speed waveforms and pushing them to your host PC. If this card dies, your machinery keeps running safely, but you lose all diagnostic visibility and trend data.
Why does this specific card matter? Because it combines the old 3500/20 RIM function with TDXnet data collection in a single slot. It captures pre-trigger waveforms (up to 2.5 seconds before an alarm) that are critical for root cause analysis. Bottom line—it’s the difference between guessing why a bearing failed and having the exact orbit plot that proves it.
Troubleshooting Quick Reference
| Fault Symptom | Probable Cause | Relevancy | Quick Check | Fix |
|---|---|---|---|---|
| System 1 Comm Fail | Ethernet cable or IP conflict | 85% | Ping 3500/22M IP; check link LED | Swap cable; verify subnet mask; check switch port |
| CONFIG OK LED Off | Corrupt config or no key | 70% | Check keyswitch position (RUN/PROG) | Cycle keyswitch; re-download config via USB-B |
| No Waveform Data | Memory full or trigger disabled | 60% | Check System 1 transient settings | Clear old transients; verify trigger window |
| TX/RX LED Solid | Backplane comm lockup | 50% | Reseat card; check Slot 1 seating | Power cycle rack; replace 3500/22M if persistent |
| TM LED Lit | Trip Multiplex Mode active | 40% | Check 3500/25 Keyphasor config | Verify keyphasor wiring; disable TM if not needed |
BENTLY 3500-22M 288055-01
Application Scenarios & Pain Points
- Critical Turbine Protection: Operators need to know why a high-vibration trip occurred. The BENTLY 3500/22M 288055-01 captures the exact waveform 20 seconds pre-alarm, allowing engineers to distinguish between oil whirl, rub, and imbalance without a portable data collector.
- Remote Monitoring Sites: Unmanned compressor stations rely on System 1 for health checks. The Ethernet gateway pushes 1-second static data trends continuously, ensuring you catch slow degradation before it becomes a catastrophic failure.
- Legacy System 1 Upgrades: Migrating from System 1 v7 to v9? The 3500/22M is often the bottleneck. Newer software requires specific firmware revisions on this card to handle increased data throughput.
- Real-World Case: Reliability engineer at a refinery had a compressor trip on high axial displacement. Portable collector showed normal operation post-trip. Swapped in a verified BENTLY 3500/22M 288055-01, captured the next transient, and identified a failed thrust bearing spacer that was intermittently contacting the collar. Saved a $2M rotor replacement.
