Product Description

Overview

The Bently Nevada 330180-90-CN is a precision 3300 XL 8mm Proximitor Sensor designed for monitoring vibration and shaft displacement in high-speed rotating machinery. It replaces the legacy 330100-90-02 and 330100-90-05 units, offering enhanced reliability, stability, and compliance with China-specific regulatory standards, including NEPSI and CCC for hazardous locations.

The -90 designation refers to a 9.0-meter total system length with panel mount, while the -CN suffix indicates certification for Chinese market approvals. This sensor converts small gaps between the probe tip and a conductive target into a stable analog signal, enabling accurate condition monitoring.

Technical Specifications

Functional Highlights

• China-Specific Certification: Complies with NEPSI / CCC for hazardous area applications.

• Direct Replacement: Compatible with legacy 3300 and 7200 series systems without recalibration.

• Panel Mount Security: Bolted installation reduces risk in high-vibration environments compared to DIN rail options.

• Interchangeable Components: Probes, cables, and Proximitor units can be swapped while maintaining system accuracy.

• High-Fidelity Measurement: Maintains linearity and accurate incremental scale factor over the full 2 mm range.

• Robust Connections: Gold-plated ClickLoc connectors resist corrosion and vibration loosening.

Applications

• Radial vibration monitoring of shafts in fluid-film bearings

• Axial (thrust) position measurement for turbines and compressors

• Keyphasor signal generation for rotational speed and phase analysis

• Monitoring thermal expansion and casing growth in high-speed machinery

Comparison Note: -90 vs -91

The -90 configuration is a panel mount sensor, bolted to a flat surface, ideal for environments with strong vibration. The -91 version features a DIN rail clip, allowing for snap-in installation but may be less secure in extremely high-vibration settings.

FAQ

Q: Can this sensor operate in extreme temperatures?
A: Yes, it is rated from -51°C to +100°C (-60°F to +212°F).

Q: Is the 330180-90-CN interchangeable with older 3300 sensors?
A: Yes, it replaces 330100-90-02 and 330100-90-05 without recalibration, provided total system length is 9.0 meters.

Q: How is the sensor mounted?
A: Panel mount with four screw holes, providing a secure installation in high-vibration environments.

Q: What approvals does the -CN model have?
A: China-specific approvals including NEPSI and CCC for hazardous area applications.