Bently Nevada 125800-01 3500/25 Keyphasor I/O Module (Internal Terminations)
The Bently Nevada 125800-01 is a precision keyphasor i/o module for the Bently Nevada 3500 Series machinery protection platform. Operating Temperature: 0°C to +65°C | Storage Temperature: -40°C to +85°C | Humidity: 95%, non-condensing. Factory-sealed, fully tested on a live 3500 rack with 48-hour burn-in at 55°C. 12-month warranty. Ships within 24 hours from Shenzhen.
Technical Specifications
| Dimensions | 24.2 cm x 11.2 cm x 2.5 cm |
|---|---|
| Weight | 0.38 KG |
| Operating Temperature | 0°C to +65°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 95%, non-condensing |
| Input Voltage | 12 to 32 VDC |
| Maximum Input Current | 10 mA |
| Output Voltage Range | 0 to 10 VDC |
| Maximum Output Current | 20 mA |
| Accuracy | ±0.5 degrees for precise measurements. |
| Wide Bandwidth | 0 to 10 kHz, ensuring comprehensive coverage. |
| Manufacturer | Bently Nevada |
| Model / SKU | 125800-01 |
✓ Ships within 24 hours | ✓ 12-Month Warranty | ✓ Worldwide Delivery
Detailed Product Information
🎯 System Integration
The Bently Nevada 125800-01 connects the 3500 rack to plant condition monitoring and historian infrastructure, streaming real-time vibration and temperature data to System 1, OSIsoft PI, or DCS via Modbus TCP.
Network Options
- Copper (146031-01): 10/100Base-TX, max 100m.
- Fiber (146031-02): 100Base-FX, max 2km — ideal for long runs or high-EMI areas.
Configuration
Static IP mandatory — DHCP expiry causes data gaps. Configure NTP for accurate timestamps. Allow TCP 3500 + TCP 502 through OT firewall.
🔧 Technical Specifications
Specifications
| Parameter | Value |
|---|---|
| Dimensions | 24.2 cm x 11.2 cm x 2.5 cm |
| Weight | 0.38 KG |
| Operating Temperature | 0°C to +65°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 95%, non-condensing |
| Input Voltage | 12 to 32 VDC |
| Maximum Input Current | 10 mA |
| Output Voltage Range | 0 to 10 VDC |
Installation
- Install in assigned rack slot per configuration drawing.
- Copper: CAT5e UTP 100m max. Fiber: 62.5/125μm multimode SC 2km max.
- Assign static IP. Configure NTP. Document settings.
- Verify STATUS LED green and data flowing before returning to service.
📦 Shipping & Warranty
24-hour handling. Anti-static packaging. DHL/FedEx/UPS. 12-month warranty covering port failure, firmware issues, communication dropout.
❓ FAQ
Q: Copper or fiber?
A: Fiber for runs over 100m, high-EMI environments, or electrical isolation requirements. Copper for standard control room under 100m.
Q: Does replacement require reconfiguration?
A: Yes — IP settings are stored on the module. Document your settings before removing the old module.
💰 ROI
The TDI module enables predictive maintenance. One avoided bearing failure on a 50 MW turbine saves $250K-500K. Without it, your 3500 rack is just a trip system.
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