Bently Nevada 3300/20-05-01-00-00-00 Proximitor Transducer

3300 Series Proximitor - Model 3300/20-05-01-00-00-00

Industrial-grade proximity transducer engineered for continuous machinery monitoring. The Bently Nevada 3300/20-05-01-00-00-00 converts eddy current probe signals into standardized voltage outputs for vibration analysis and position measurement across rotating equipment.

📊 Specification Summary

Full Model Code: 3300/20-05-01-00-00-00
Product Category: Proximity Transducer (Proximitor)
System Series: 3300 Monitoring Platform
Input: 8mm proximity probe (eddy current type)
Output Signal: -2 to -18 VDC proportional to gap
Sensitivity: 200 mV/mil (7.87 mV/μm) nominal
Frequency Response: DC to 10 kHz (-3 dB point)
Power Requirement: -24 VDC ±5%, 25 mA typical
Environmental Rating: -30°C to +65°C operation
Enclosure: Industrial DIN rail mount housing
Standards Compliance: API 670, CE, RoHS

🔬 Measurement Principle

This proximitor energizes an 8mm eddy current probe with a high-frequency oscillator signal. When the probe tip approaches a conductive target (typically a shaft or rotor), eddy currents induced in the target material alter the probe's electrical characteristics. The proximitor detects these changes and converts them into a linear DC voltage output proportional to the gap distance.

The result is a non-contact measurement system capable of tracking shaft position and vibration with micron-level resolution—essential for detecting bearing wear, rotor unbalance, misalignment, and other mechanical faults before they escalate into failures.

🎯 Strategic Applications

Bearing Health Monitoring: Track radial shaft motion in journal bearings to identify developing problems like oil whirl, bearing wear, and foundation issues that manifest as changes in vibration amplitude or frequency content.

Rotor Dynamics Analysis: Capture shaft centerline position during startup, steady-state operation, and coastdown to validate rotor behavior against design predictions and identify resonance conditions or instability.

Axial Position Tracking: Monitor thrust bearing performance by measuring rotor axial position—critical for preventing thrust bearing failures in compressors, turbines, and pumps handling axial loads.

⚡ Performance Features

✓ Wide Bandwidth: 10 kHz response captures both slow-roll data and high-frequency bearing defects
✓ Linear Output: Voltage directly proportional to gap over 40-mil range
✓ Low Noise Floor: Advanced filtering rejects electrical interference from nearby equipment
✓ Buffered Output: Drives multiple loads without signal degradation
✓ Status Indication: LED diagnostics show power, OK, and fault conditions

💼 Integration Ecosystem

The 3300/20-05-01-00-00-00 forms part of a complete measurement chain: pair it with any Bently Nevada 8mm proximity probe and appropriate extension cables to create a calibrated channel. The proximitor's standardized output integrates seamlessly with 3500 rack monitoring systems, standalone trip modules, PLCs, DCS platforms, and data acquisition systems.

Multiple proximitors can share common power supplies and grounding infrastructure, simplifying multi-channel installations on complex machinery trains. The DIN rail mounting enables flexible panel layouts and easy field replacement during maintenance activities.

📦 Supply Package

One 3300/20-05-01-00-00-00 proximitor module, DIN rail mounting hardware, terminal block connectors, individual calibration certificate with traceability, installation manual, and technical specification sheet. All documentation supports API 670 compliance verification.

Product Status: Brand new, factory-sealed unit with full manufacturer warranty and global technical support.