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The Bently Nevada 330704-000-078-10-01-CN is a 3300 XL 11 mm Proximity Probe designed for non-contact measurement of shaft vibration and displacement in rotating machinery. It is part of the Bently Nevada 3300 XL proximity transducer system, widely used for continuous condition monitoring and machinery protection in critical industrial assets.

This configuration typically includes a 78 mm probe case length option, a 1.0 m system length, a miniature coaxial ClickLoc-style connector system, and the CN approval option, which is used for China-region compliance requirements in industrial installations.

The 3300 XL 11 mm series is engineered for stable signal performance and long-term reliability in harsh operating environments such as turbines, compressors, pumps, and generators.

Technical Specifications

Item	Specification
Brand	Bently Nevada
Series	3300 XL
Model	330704-000-078-10-01-CN
Product Type	11 mm Proximity Probe
Measurement Principle	Eddy Current
Measurement Type	Non-contact vibration & displacement
Probe Diameter	11 mm
Compatible System	3300 XL Proximity Transducer System
Overall Case Length	78 mm
Total System Length	1.0 m
Connector Type	Miniature coaxial connector system
Installation Type	Thread-mounted
Approval Option	CN (China region compliance)
Application	Machinery protection & condition monitoring

Dimensions & Weight

Item	Specification
Dimensions (L × W × H)	Approx. 78 × 11 × 11 mm
Weight	Approx. 0.35 kg

Recommended Related Models

Model	Description
330704-000-078-10-01-05	Multi-approval version
330704-000-070-10-02-CN	70 mm case length CN version
330704-000-060-10-02-CN	60 mm case length CN version
330704-000-100-10-01-CN	100 mm case length version
330780 Series	Proximitor sensor
330130 Series	Extension cable

Popular Bently Nevada Models

Model	Product Category
330703 Series	11 mm proximity probes
330704 Series	11 mm proximity probes
330780 Series	Proximitor sensors
330130 Series	Extension cables
3500 Series	Machinery protection system
2300 Series	Condition monitoring system

Applications

The 330704-000-078-10-01-CN is widely used for continuous monitoring of rotating machinery where vibration and shaft position accuracy are critical.

Typical applications include:

Steam turbines
Gas turbines
Centrifugal compressors
Industrial pumps
Electric motors
Generators
Petrochemical facilities
Oil & gas production systems
Power generation plants
Heavy industrial rotating equipment

Key Advantages

High-precision eddy current measurement technology
Stable long-term vibration monitoring performance
Designed for harsh industrial environments
Compatible with 3300 XL monitoring architecture
Supports predictive maintenance strategies
Helps reduce unexpected equipment downtime
Reliable 24/7 continuous operation
Easy integration into existing systems
Strong mechanical durability
Widely used in critical asset protection systems

Technical FAQs

Q1. What is the main function of this probe?
It measures shaft vibration and displacement without physical contact.

Q2. What system is it used with?
It is part of the Bently Nevada 3300 XL proximity transducer system.

Q3. What does the 78 mm configuration represent?
It refers to the probe’s overall case length of 78 mm.

Q4. What does the 10 option indicate?
It represents a 1.0 m system length configuration.

Q5. What does the CN suffix mean?
It indicates China-region compliance (CN approval configuration).

Q6. What measurement technology is used?
It uses eddy current sensing technology for non-contact measurement.

Q7. Which industries use this model?
Power generation, oil & gas, petrochemical, mining, and heavy industry.

Q8. Is it suitable for continuous monitoring?
Yes, it is designed for 24/7 machinery protection applications.

Q9. Does it require additional components?
Yes, it must be used with a Proximitor sensor and extension cable.

Q10. Why is the 3300 XL 11 mm series widely used?
Because it provides stable measurement performance, strong durability, and reliable protection for critical rotating machinery.

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