Product No.: 3500/53M (Monitor) with 286566-01 (Probe) & 133396-01 (Extension Cable) - General Introduction
This is a complete Radial Vibration Monitoring Channel from a major machinery protection system platform (e.g., Bently Nevada 3500 Series). The assembly is designed for continuous, real-time monitoring of radial vibration in rotating machinery such as turbines, compressors, pumps, and fans.
3500/53M: This is the monitor module (a slot-in card) that resides in a 3500 series rack. It conditions the signal, provides power, and generates alarm and shutdown outputs based on configured setpoints.
286566-01: This is a specific eddy current displacement transducer (probe). It generates an electromagnetic field to precisely measure the distance (gap) between its tip and a conductive metal target, which corresponds to shaft vibration.
133396-01: This is a high-quality, shielded coaxial extension cable of a specified length (e.g., 5m, 10m) that connects the probe to the monitor. It is essential for maintaining signal integrity over distance.
Detailed Parameters
This table consolidates the key specifications for the complete measurement loop.
| Parameter Category | Specification | Details / Notes |
|---|---|---|
| System Function | Radial (Shaft Relative) Vibration Monitoring | Measures the dynamic motion of the shaft relative to the bearing housing. |
| Monitor Module (3500/53M) | ||
| * Module Dimensions* | ~ 318 mm (H) x 20 mm (W) x 193 mm (D) | Standard single-slot module for a 3500 rack. Height and depth are approximate. |
| * Module Weight* | Approx. 0.5 - 0.7 kg | |
| * Power Requirement* | Typically +24 VDC from rack backplane. | |
| * Outputs* | 4-20 mA analog, relay contacts (Danger, Alert, OK), digital communication. | |
| Transducer Probe (286566-01) | ||
| * Probe Diameter* | 8 mm (Standard) or 11 mm | A common size indicated by such part numbers. Must be confirmed via datasheet. |
| * Probe Length* | Varies (e.g., 25, 50, 100 mm) | Specified by the full part number suffix. |
| * System Scale Factor* | 8.0 mV/µm (200 mV/mil) | Standard sensitivity for vibration measurement. |
| * Linear Range* | Typically 2.0 mm (80 mils) peak-to-peak | Usable range within specified error limits. |
| * Frequency Response* | 0 to 10 kHz | Suitable for measuring vibration from very low speed (runout) to very high frequency. |
| * Target Material* | Conducting material (e.g., AISI 4140 Steel) | Required for eddy current operation. |
| * Operating Temp* | -35°C to +150°C (for standard probe body) | Extended temp versions available. |
| Extension Cable (133396-01) | ||
| * Cable Type* | Double-shielded, PTFE-insulated coaxial. | For high-temperature and high-electrical-noise environments. |
| * Cable Length* | Defined by "-01" suffix (e.g., 5 meters). | Common lengths: 5m, 7.5m, 10m. |
| * Connectors* | Military-grade threaded connectors. | MS-style or compatible, ensuring a secure, vibration-proof connection. |
| * Overall Loop Resistance* | Must be matched with probe and monitor per system specs. | Critical for proper calibration and scaling. |
Primary Application Scenarios
This system is fundamental for predictive maintenance and machinery protection in critical industrial assets.
Gas & Steam Turbine Protection:
Primary Application: Continuously monitors radial vibration of turbine shafts to detect unbalance, misalignment, shaft cracks, or bearing wear. The monitor's relay outputs can trigger alarms or initiate a safe turbine shutdown to prevent catastrophic failure.
Centrifugal & Axial Compressor Monitoring:
Essential for detecting surge, rotor instability, and aerodynamic excitation in high-speed compressors used in oil & gas refineries, petrochemical plants, and LNG facilities.
Large Pump & Motor Protection:
Monitors critical boiler feed pumps, cooling water pumps, and large motors in power generation and heavy industry to prevent failures caused by bearing degradation or hydraulic forces.
High-Speed Gearbox Monitoring:
Used on the input and output shafts of gearboxes to monitor for issues like gear mesh problems, shaft misalignment, and worn bearings, which manifest as changes in vibration signature.
Paper & Rolling Mill Drivelines:
Protects large, expensive drive trains by monitoring vibration from the motor through gearboxes to the work rolls, ensuring product quality and preventing mechanical damage from failures.
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All products are purchased directly from overseas original manufacturers or authorized channels, 100% guaranteed genuine quality, sufficient spot inventory, and comprehensive model coverage
Quality Commitment
Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales
Flexible procurement plan
- Bulk order enjoys Friendship discount (2 pieces or more can be applied)
- Long-term cooperative customers can apply for priority supply
Full service support
7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
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- More competitive price system
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