Product Overview

The Bently Nevada 330130-075-00-00 is a 3300 XL standard extension cable used in the Bently Nevada 3300 XL proximity transducer system.

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

This model supports a 7.5-meter cable length, offering slightly extended routing flexibility compared with standard 7-meter configurations.

Technical Specifications

Function and Working Principle

This extension cable does not perform any measurement itself. Instead, it acts as a low-loss signal transmission path within the 3300 XL measurement chain.

Signal Flow

1. Proximity probe detects shaft motion using eddy-current principle
2. Electrical analog signal is generated at the probe
3. Extension cable transmits the signal with minimal distortion
4. Proximitor sensor conditions and outputs calibrated measurement data

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 reliably
• Maintains signal integrity over 7.5-meter routing distance
• Supports shaft vibration and displacement measurement systems
• Ensures compatibility with API 670 machinery protection standards
• Enables flexible layout design in industrial machinery installations

System Role

The 3300 XL proximity measurement system consists of:

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

Together, they enable:

• Shaft vibration monitoring
• Radial displacement measurement
• Rotor dynamic analysis
• Machinery protection and shutdown logic inputs

Industrial Applications

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

Installation Guidelines

• Use proper ClickLoc coaxial connector engagement (hand-tight only)
• Avoid excessive bending or mechanical strain on cable
• Maintain separation from high-voltage power cables to reduce EMI
• Ensure proper grounding and shielding
• Verify full system compatibility (probe + cable + Proximitor)
• Confirm system length calibration requirements are met

Key Advantages

• Extended routing flexibility with 7.5-meter length
• Stable and low-noise signal transmission
• High EMI resistance in industrial environments
• Fully compatible with Bently Nevada 3300 XL systems
• Supports reliable long-term condition monitoring

Technical FAQs

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

Q2: Why use 7.5 meters instead of 7 meters?
It provides additional installation flexibility for larger equipment layouts.

Q3: Can it operate alone?
No. It must be used with a proximity probe and Proximitor sensor.

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

Conclusion

The Bently Nevada 330130-075-00-00 3300 XL Standard Extension Cable is a precision 7.5-meter interconnect component designed for industrial vibration monitoring systems. It ensures accurate, low-noise signal transmission, supporting reliable machine protection and predictive maintenance in critical rotating equipment applications.