Description
1. Product Title
Bently Nevada 330100-90-00 – 3300 XL Proximitor® Sensor System
2. Product Overview
The330100-90-00 – 330 is a complete 3300 XL Proximitor® sensor assembly designed for non-contact proximity measurement in rotating machinery vibration monitoring systems. This eddy current-based system delivers an output voltage proportional to the gap between the probe tip and a conductive shaft surface, supporting both static position and dynamic vibration measurements. It tackles essential challenges in machine protection by providing reliable data for early fault detection in fluid-film bearing equipment, Keyphasor® marking, and speed sensing applications. With a 9-meter total system length and standard configuration, the 330100-90-00 – 330 ensures compatibility with 3300/3500 racks, offering high accuracy across industrial environments.
3. Technical Specifications
- Brand: Bently Nevada
- Model: 330100-90-00 – 330
- Warranty: One Year
- Condition: 100% New & Original
- Linear Range: 0.25 to 2.3 mm (10 to 90 mils)
- Total System Length: 9.0 meters (29.5 feet)
- Operating Temperature: -51°C to +100°C (-60°F to +212°F)
- Probe Material: A383 aluminum
- Shaft Diameter Minimum: 50.8 mm (2 inches), recommended 76.2 mm (3 inches)
- Extension Cable: 75 Ω triaxial FEP insulated
- Total System Weight: 0.59 kg (1.3 lb) typical
- Dimensions: Approx. 16 x 16 x 12 cm
4. Key Features & Benefits
- Wide Linear Range: Operates accurately from 0.25 mm to 2.3 mm gap, accommodating various installation tolerances and shaft materials like AISI 4140 steel.
- Temperature Resilience: Functions reliably from -51°C to +100°C, suitable for extreme conditions in turbines and compressors without signal drift.
- Static/Dynamic Capability: Measures both position variations and vibrations, enabling comprehensive diagnostics in a single installation.
- Pressure-Sealed Probes: Supports differential pressure sealing for reverse-mount applications exposed to process fluids.
5. Application Scenarios
- Turbine Generators in Power Plants: Measures radial shaft position and vibration to protect against rubs and unbalance during operation.
- Process Compressors in Refineries: Provides Keyphasor® signals and proximity data for phase analysis in multi-stage centrifugal machines.
- Reciprocating Engines: Monitors piston rod position and vibration in high-speed engines for predictive maintenance.
6. Frequently Asked Questions (FAQ)
- Q: What is the primary function of the 330100-90-00 – 330 ?
A: It provides non-contact proximity sensing for shaft vibration, position, and speed measurements in rotating equipment. - Q: Is 330100-90-00 – 330 compatible with legacy systems?
A: Yes, designed for 3300 XL and 3500 monitoring systems with standard triaxial cabling.
| bently | 3500/15 (127610-01) |
| bently | 3500/05-01-03-00-00-00 |
| bently | 330100-90-01 |
| bently | 330100-90-00 – 330 |





