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Genuine Automation Parts | Worldwide Express Delivery | 12-Month Warranty — [GET A QUOTE]
The 3500/25 (125792-01) is a specialized half-height, two-channel module designed for the 3500 Machinery Protection System by Bently Nevada.
This enhanced version processes input signals from proximity probes and magnetic...
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The 3500/25 (125792-01) is a specialized half-height, two-channel module designed for the 3500 Machinery Protection System by Bently Nevada.
This enhanced version processes input signals from proximity probes and magnetic pickups to generate precise timing references. It plays a critical role in determining shaft rotational speed and calculating vector-based parameters such as 1X vibration amplitude and phase lag.
By delivering an accurate once-per-turn reference signal, the module enables advanced diagnostics and phase-based machinery analysis for high-speed rotating equipment.
| Parameter | Specification |
|---|---|
| Identification | 3500/25 (125792-01) |
| Input Compatibility | Proximitor sensors, Magnetic Pickups (passive/active) |
| Signal Channels | Two independent channels |
| Speed Measurement Accuracy | ±0.01% (up to 100,000 RPM) |
| Speed Resolution | 0.1 RPM |
| Signal Processing | Enhanced Keyphasor functionality |
| Power Consumption | 3.2 W nominal |
| Environmental Protection | Optional conformal coating |
| Operating Temperature | -40°C to +85°C (-40°F to +185°F) |
| Dimensions (H × W × D) | 119.9 mm × 24.4 mm × 256.5 mm |
| Weight | 2.34 kg |
The 3500/25 (125792-01) is widely installed in:
Power generation facilities
Oil and gas processing plants
Wastewater treatment systems
Typical monitored assets include:
Steam turbines
Centrifugal compressors
Large industrial pumps
It is essential where accurate phase reference information is required for dynamic balancing, resonance identification, orbit analysis, and advanced vibration diagnostics.
Q1: What is the difference between the standard 3500/25 and the 125792-01 Enhanced version?
A: The 125792-01 Enhanced module incorporates improved signal conditioning circuitry, delivering higher signal-to-noise ratios and superior phase accuracy compared to legacy versions. It also supports a broader input frequency range, making it suitable for higher-speed machinery applications.
Q2: Does this module require a specific I/O module?
A: Yes. The 3500/25 (125792-01) must be paired with the appropriate Keyphasor I/O module (internal or external termination) installed at the rear of the 3500 rack to operate correctly.
