Product Overview

The Bently Nevada 330130-070-02-CN is a 3300 XL standard extension cable used within the Bently Nevada 3300 XL proximity transducer system.

It provides the essential signal link between the proximity probe and the Proximitor sensor, ensuring accurate transmission of vibration and displacement signals in rotating machinery condition monitoring systems.

This version has a 7-meter cable length and a “-CN” configuration variant, typically used for specific regional or ordering configurations within the Bently Nevada product line.

Technical Specifications

Function and Working Principle

This extension cable does not perform measurement itself. Instead, it acts as a high-integrity signal transmission pathway within the 3300 XL monitoring chain.

Signal Flow

1. Proximity probe detects shaft motion using eddy-current sensing
2. Electrical signal is generated at the probe head
3. Extension cable transmits the analog signal with minimal loss
4. Proximitor sensor converts it into a calibrated output signal

Vout→Proximitor signal conditioning stageV_{out} \rightarrow \text{Proximitor signal conditioning stage}Vout​→Proximitor signal conditioning stage

Key Functions

• Transmits high-frequency proximity probe signals
• Maintains signal integrity over 7-meter routing distance
• Ensures accurate vibration and displacement measurement
• Supports machinery protection systems (API 670 compliant setups)
• Enables flexible installation in large industrial machinery layouts

System Role

The 3300 XL proximity system consists of:

• Proximity probe (sensor head)
• Extension cable (this component)
• Proximitor sensor (signal conditioner)

Together, they enable:

• Shaft vibration monitoring
• Radial displacement measurement
• Rotor dynamic behavior analysis
• Protection system trip logic inputs

Industrial Applications

• Steam turbines
• Gas turbines
• Compressors
• Pumps
• Generators
• Industrial fans
• Petrochemical processing equipment
• Power generation systems

Installation Guidelines

• Use proper ClickLoc connector engagement (hand-tight connection only)
• Avoid excessive bending or mechanical stress on cable
• Keep away from high-voltage power cables to reduce EMI interference
• Ensure proper grounding and shielding practices
• Maintain full system compatibility (probe + cable + Proximitor)
• Verify correct system length configuration for calibration accuracy

Key Advantages

• Stable signal transmission over 7 meters
• High resistance to electromagnetic interference (EMI)
• Designed for compatibility with 3300 XL monitoring systems
• Reliable long-term performance in industrial environments
• Supports predictive maintenance and condition monitoring programs

Technical FAQs

Q1: Does this cable measure vibration?
No. It only transmits signals between the probe and Proximitor sensor.

Q2: What does “CN” mean?
It indicates a specific configuration or ordering variant used in Bently Nevada product coding.

Q3: Can this cable be used alone?
No. It must be used as part of a complete 3300 XL measurement system.

Q4: Where is it used?
In turbines, compressors, pumps, generators, and other rotating machinery systems.

Conclusion

The Bently Nevada 330130-070-02-CN 3300 XL Standard Extension Cable is a critical interconnect component in industrial vibration monitoring systems. It ensures accurate, low-noise signal transmission over 7 meters, supporting reliable machine protection and predictive maintenance in rotating equipment applications.