Introduction

The Bently Nevada 330101-085-00-00 3300 XL 8 mm Proximity Probe is part of the industry-standard machinery condition monitoring platform used for high-reliability vibration and position measurements. Designed for integration into the 3300 XL transducer system, it provides accurate, repeatable, and stable signals for monitoring critical rotating equipment. Its robust construction and proven eddy current technology make it a trusted solution in turbine, compressor, and generator protection systems worldwide.

Technical Specifications

Parameter	Specification
Sensor Type	Eddy Current Proximity Probe
System Series	Bently Nevada 3300 XL
Model	330101-085-00-00
Probe Diameter	8 mm
Measurement Principle	Electromagnetic induction (eddy current)
Measurement Target	Conductive metallic shaft surfaces
Function	Vibration, position, Keyphasor reference
System Compatibility	3300 XL Proximitor + extension cable + probe system
Operating Temperature	-40°C to +85°C (system dependent)
Weight	0.323 kg (0.71 lb)
Dimensions	8 mm probe tip; length varies by configuration option

Applications

The Bently Nevada 330101-085-00-00 3300 XL 8 mm Proximity Probe is a high-precision sensor designed for critical rotating machinery monitoring systems:

Shaft vibration and radial displacement measurement in turbines
Rotor eccentricity monitoring in compressors and generators
Bearing condition analysis in fluid-film bearing machines
Speed and Keyphasor reference signal detection
Industrial predictive maintenance systems
Heavy-duty power generation and oil & gas equipment monitoring

This probe is part of the 3300 XL system, widely used for API 670–compliant machinery protection applications.

Advantages

High-accuracy 8 mm eddy current sensing for stable displacement measurement
3300 XL system compatibility ensures interchangeability with probes, cables, and proximitor modules
Robust industrial design suitable for harsh environments and continuous operation
Excellent thermal stability for reliable readings in fluctuating temperature conditions
Non-contact measurement principle eliminates mechanical wear and extends service life
Strong signal consistency for vibration and position monitoring in critical assets

Technical FAQs

What is the operating principle of this probe?
It uses eddy current technology to measure distance changes between the probe tip and conductive metal targets.
What systems is it compatible with?
It is designed for the Bently Nevada 3300 XL 8 mm Proximity Transducer System.
Can it measure both vibration and position?
Yes, it measures both static shaft position and dynamic vibration.
What is the typical measurement target?
Conductive materials such as steel shafts in rotating machinery.
Is it suitable for continuous industrial operation?
Yes, it is designed for 24/7 monitoring in critical applications.
What is the standard output behavior?
It works as part of a transducer system providing voltage proportional to displacement.
Does it require calibration after installation?
No field calibration is required when used within matched 3300 XL system components.
Can it operate in high-vibration environments?
Yes, it is specifically engineered for rotating machinery with strong vibration levels.
Is it resistant to harsh environments?
Yes, it supports industrial temperature ranges and rugged operating conditions.
Which industries commonly use this probe?
Power generation, oil & gas, petrochemical, marine, and heavy industrial sectors.