Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Model | 125800-01 |
| Product Type | Keyphasor I/O Module (Internal Terminations) |
| Associated Monitor | 3500/25 Enhanced Keyphasor Module |
| System | Bently Nevada 3500 Series |
| Channels | 2 (half-height module) |
| Input | Proximity probe or magnetic pickup |
| Output | Digital Keyphasor signals to 3500 monitors |
| Termination | Internal |
| Form Factor | 3500 rack half-height module |
4. Product Introduction (Anti-Template)
The Bently Nevada 125800-01 is the Keyphasor I/O Module with internal terminations used with the 3500/25 Enhanced Keyphasor Module in the 3500 Machinery Protection System. It conditions signals from proximity probes or magnetic pickups and generates clean digital Keyphasor pulses that mark a fixed angular reference on a rotating shaft.
These once-per-revolution (or multi-event) signals provide the phase and speed reference required by vibration monitors for accurate phase analysis, order tracking, and speed measurement. The module is a half-height card that installs in a standard 3500 rack and supports two Keyphasor channels. The internal-termination version simplifies field wiring by eliminating the need for an external termination block. Exact channel configuration, probe type, and system options must be verified when replacing an existing module.
125800-01
125800-01
125800-01
125800-01
125800-01
5. QC, Procurement & Logistics SOP
- Inbound Verification – Confirm full part number (125800-01), revision labels, and connector condition. Photograph all labels.
- Functional Testing – Install in a compatible 3500 rack and verify module status and Keyphasor signal generation with a known input. Full validation requires the complete 3500 monitoring configuration.
- QA & Packaging – Protect the backplane connector and front terminals, clean according to electronics handling practices, and pack in anti-static protective packaging.
- Global Logistics & Export Compliance – Classify under the correct HS code for industrial monitoring / I/O modules. Packaging must protect connectors; export documentation is prepared to minimize customs delays.
6. Technical Pitfalls & Integration Warnings
Internal vs External Termination – Confirm that the system expects the internal-termination version (125800-01). Mixing termination types can cause wiring or signal issues.
Probe Compatibility – Verify the Keyphasor transducer type (proximity probe or magnetic pickup) and gap voltage settings match the original installation.
Channel Assignment – Ensure the Keyphasor channels are correctly assigned in the 3500 configuration software.
Signal Quality – Poor probe installation or wiring can produce noisy or missing Keyphasor pulses, affecting all phase-referenced measurements.
7. Frequently Asked Questions (FAQ)
What is the realistic global lead time for a verified 125800-01?
As a specialized 3500 series module, availability depends on surplus stock. Typical lead time after verification is 5–15 business days plus standard shipping.
What is the primary function of this module?
It conditions Keyphasor transducer signals and provides digital once-per-revolution (or multi-event) reference pulses to the 3500 monitoring system.
What system is it used with?
Bently Nevada 3500 Machinery Protection System, specifically with the 3500/25 Enhanced Keyphasor Module.
Does it have internal or external terminations?
Internal terminations.
How many channels does it support?
Two channels (half-height module).
What should be confirmed before ordering a replacement?
Exact part number (125800-01), compatibility with the existing 3500/25 monitor and rack, transducer type, and channel configuration.
