Introduction
The 3500/05-01-03-00-00-01 is a monitoring module from the Bently Nevada 3500 Machinery Protection System, a globally recognized standard for industrial asset protection. Specifically, this module is a Dual-Channel Proximitor Power Supply and Buffer. Its primary function is to provide power to and condition the signals from eddy-current displacement probes (proximitors), which are used to measure vibration and position (e.g., shaft runout, thrust position) of critical rotating machinery like turbines and compressors.
Technical Parameters
The key technical specifications, including physical dimensions and weight, are summarized in the table below.
| Parameter Category | Specification |
|---|---|
| Model / Part Number | 3500/05-01-03-00-00-01 |
| System/Platform | Bently Nevada 3500 Series Rack |
| Module Type | Dual-Channel Proximitor Power Supply / Buffer Module |
| Slot Compatibility | Designed for a standard slot in a 3500 Series rack. |
| Input Power | Receives power from the 3500 rack backplane. |
| Output to Probes | Supplies -24 V DC (or -17 to -26 V DC) to two independent eddy-current proximitor probes. |
| Input from Probes | Accepts the raw (-2 to -18 V DC) gap voltage signals from the two connected probes. |
| Output to Monitor | Provides buffered, conditioned gap voltage signals to corresponding monitor modules (e.g., 3500/42M Vibration Monitor). |
| Key Features | Includes power supply status indicators, signal buffering, and isolation. The "01-03" in the P/N often indicates specific firmware or hardware revisions. |
| Dimensions (H x W x D) | ~193 mm x 24 mm x 170 mm (Standard 3500 1/4-slot module size). |
| Weight | ~0.25 kg (Approximate). |
| Operating Temperature | 0°C to 65°C (32°F to 149°F). |
Application Scenarios
This module is a fundamental component in condition monitoring and machinery protection systems for large, critical industrial assets:
Gas & Steam Turbines: Continuously powers and reads signals from shaft vibration and eccentricity probes to monitor rotor dynamics and prevent catastrophic failure.
Centrifugal & Axial Compressors: Used to measure axial shaft displacement (thrust position) and radial vibration, ensuring the rotor operates within safe mechanical clearances.
Large Pumps & Motors: Monifts bearing wear and shaft instability by providing clean power and signal conditioning for vibration probes.
Hydroelectric Turbines & Generators: Essential for protecting expensive hydro units by monitoring shaft runout and vibration levels.
General Critical Machinery Monitoring: Any high-value rotating equipment where predictive maintenance and immediate trip protection are required to ensure safety, reliability, and operational continuity.
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