
Product Overview
Modern industrial facilities rely on continuous condition monitoring to maximize equipment reliability and minimize unplanned downtime. The Bently Nevada 330704-000-XXX-10-01-CN 3300 XL 11 mm Proximity Probe is a high-performance non-contact displacement sensor engineered for precise measurement of shaft vibration, shaft position, and rotor displacement in critical rotating machinery.
As a member of the 3300 XL 11 mm Proximity Transducer System, this proximity probe utilizes proven eddy current sensing technology to detect the distance between the probe tip and a conductive target surface. Its non-contact operating principle eliminates mechanical wear while providing accurate and repeatable measurements in demanding industrial environments.
The 330704-000-XXX-10-01-CN represents a configurable model within the 3300 XL 11 mm product family, where the “XXX” portion identifies different probe body lengths or configuration options. With a 1-meter total cable length, armored construction, and industrial-grade design, this probe is widely used for continuous monitoring of turbines, compressors, generators, motors, pumps, and other rotating equipment.
Technical Specifications
| Parameter |
Details |
| Manufacturer |
Bently Nevada |
| Model |
330704-000-XXX-10-01-CN |
| Product Type |
3300 XL 11 mm Proximity Probe |
| Sensor Technology |
Eddy Current Non-Contact Displacement Sensor |
| System Series |
3300 XL 11 mm Proximity Transducer System |
| Probe Diameter |
11 mm |
| Thread Type |
M14 × 1.5 |
| Probe Construction |
Armored Probe |
| Probe Case Length |
XXX mm (Configuration Dependent) |
| Total Length |
1 meter |
| Connector Type |
Miniature Coaxial ClickLoc Connector |
| Measurement Function |
Shaft Vibration, Shaft Position and Displacement |
| Installation Method |
Threaded Mounting |
| Operating Principle |
Eddy Current Measurement |
| Dimensions |
Total Length: 1 meter |
| Weight |
0.17 kg |
| Industrial Grade |
Yes |
Product Features
The 330704-000-XXX-10-01-CN combines measurement accuracy, mechanical durability, and flexible configuration to meet a wide range of industrial monitoring requirements.
Its key features include:
- High-precision non-contact displacement measurement
- Excellent long-term measurement stability
- Compact industrial design for harsh environments
- Multiple probe body length configurations
- Armored cable construction for enhanced durability
- Excellent resistance to vibration and electromagnetic interference
- Fully compatible with the Bently Nevada 3300 XL monitoring platform
The configurable probe length allows engineers to select the most suitable installation option for different machinery layouts.
Working Principle
The 330704-000-XXX-10-01-CN operates using advanced eddy current sensing technology.
The probe continuously generates a high-frequency electromagnetic field at its sensing tip. When installed near a conductive rotating shaft, eddy currents are induced on the shaft surface. Variations in the shaft-to-probe distance change the electromagnetic field strength, allowing the probe to generate proportional electrical signals.
These signals are processed by the matching Proximitor Sensor, providing accurate measurements for:
- Shaft vibration
- Radial displacement
- Axial position
- Rotor movement
- Mechanical condition monitoring
Because the measurement is completely non-contact, the probe offers excellent reliability and extended service life.
Role in Industrial Monitoring Systems
Within industrial machinery protection systems, the 330704-000-XXX-10-01-CN provides continuous real-time condition monitoring for rotating assets.
Typical monitoring functions include:
| Function |
Description |
| Shaft Vibration Monitoring |
Detects abnormal shaft movement |
| Shaft Position Measurement |
Monitors axial and radial position |
| Rotor Displacement Analysis |
Measures dynamic shaft movement |
| Machinery Protection |
Supports automatic shutdown systems |
| Condition Monitoring |
Provides continuous equipment diagnostics |
| Predictive Maintenance |
Identifies faults before failure occurs |
The probe enables maintenance teams to improve equipment availability while reducing maintenance costs.
Industrial Applications
The 330704-000-XXX-10-01-CN is suitable for numerous industrial applications involving rotating machinery.
| Industry |
Typical Equipment |
| Power Generation |
Steam turbines, gas turbines, generators |
| Oil & Gas |
Compressors, pumps, turbo-expanders |
| Petrochemical |
Process compressors and rotating equipment |
| Mining |
Crushers, grinding mills, conveyors |
| Steel Manufacturing |
Rolling mills and heavy motors |
| Marine |
Propulsion systems and auxiliary machinery |
| Water Treatment |
High-capacity pumps |
| General Manufacturing |
Production machinery and process equipment |
Its industrial-grade construction allows dependable operation under continuous-duty conditions.
Installation and System Integration
For optimal monitoring performance, proper installation is recommended.
Typical installation procedures include:
- Confirm the correct probe configuration before installation.
- Mount the probe securely using the M14 × 1.5 threaded body.
- Adjust the probe gap according to system requirements.
- Route the armored cable to avoid excessive bending or mechanical stress.
- Connect the probe to a compatible Proximitor Sensor.
- Verify signal output during commissioning.
- Perform calibration before placing the equipment into operation.
Proper installation helps maximize measurement accuracy and long-term reliability.
Compatible System Components
The 330704-000-XXX-10-01-CN is designed to operate as part of a complete machinery protection system.
| Compatible Component |
Function |
| Bently Nevada Proximitor Sensor |
Signal conditioning and conversion |
| 3300 XL Extension Cable |
Connects probe and sensor |
| 3300 XL Monitoring Module |
Processes vibration signals |
| Machinery Protection System |
Provides equipment protection |
| PLC System |
Receives machine status signals |
| DCS Platform |
Centralized process monitoring |
| Condition Monitoring Software |
Trend analysis and diagnostics |
Together, these components provide a comprehensive rotating machinery monitoring solution.
Recommended Alternative Models
| Model |
Product Type |
Key Feature |
Typical Application |
| 330704-000-XXX-10-01-CN |
3300 XL 11 mm Proximity Probe |
Configurable probe body length |
General industrial monitoring |
| 330704-000-080-10-01-05 |
3300 XL 11 mm Proximity Probe |
80 mm probe body |
Standard machinery protection |
| 330704-000-090-50-02-00 |
3300 XL 11 mm Proximity Probe |
5-meter cable configuration |
Long-distance installations |
| 330704-000-100-10-01-RU |
3300 XL 11 mm Proximity Probe |
100 mm probe body |
Heavy industrial equipment |
| 330704-00-050-10-01-05 |
3300 XL 11 mm Proximity Probe |
Compact 50 mm probe body |
Limited installation space |
Key Advantages
- High-precision non-contact vibration measurement
- Flexible probe body length configurations
- Excellent resistance to harsh industrial environments
- Reliable long-term monitoring performance
- Durable armored construction
- Supports predictive maintenance strategies
- Compatible with Bently Nevada 3300 XL monitoring systems
- Improves machinery availability while reducing maintenance costs
Technical FAQs
What does “XXX” represent in the model number?
The “XXX” identifies different probe body lengths or mechanical configuration options within the Bently Nevada 3300 XL 11 mm Proximity Probe product family.
What is the primary application of this proximity probe?
It is designed for continuous monitoring of shaft vibration, shaft position, and rotor displacement in rotating industrial machinery.
Which machines commonly use this probe?
Typical applications include steam turbines, gas turbines, compressors, generators, electric motors, centrifugal pumps, and other rotating equipment.
What components are required for a complete monitoring system?
The probe is typically used together with a Bently Nevada Proximitor Sensor, extension cable, machinery protection monitor, PLC or DCS system, and condition monitoring software.
Conclusion
The Bently Nevada 330704-000-XXX-10-01-CN 3300 XL 11 mm Proximity Probe is a versatile non-contact displacement sensor developed for high-accuracy condition monitoring of industrial rotating machinery.
Featuring an 11 mm sensing tip, configurable probe body length, M14 × 1.5 threaded mounting, 1-meter total cable length, and lightweight 0.17 kg construction, it delivers reliable vibration measurement and seamless integration into industrial machinery protection systems.
For engineers, system integrators, and maintenance professionals, the 330704-000-XXX-10-01-CN provides a dependable solution for enhancing equipment reliability, supporting predictive maintenance, and extending the service life of critical rotating assets.