Where It Excels in Industrial Use

• High-Precision Shaft Displacement Monitoring
The Bently Nevada 173688-01-20-12-CN 3300 XL 8 mm Proximity Probe is designed for accurate non-contact measurement of shaft vibration, radial displacement, and position changes in critical rotating machinery. It provides stable eddy-current sensing performance for machinery protection and predictive maintenance systems.

• Critical Turbine and Compressor Applications
This proximity probe is widely used on steam turbines, centrifugal compressors, pumps, motors, and other rotating assets where continuous shaft condition monitoring is required to improve equipment reliability and prevent unexpected downtime.

• Machinery Protection System Integration
The probe works together with compatible Bently Nevada Proximitor Sensors and monitoring platforms, delivering accurate displacement signals for systems such as PLC, DCS, SCADA, and dedicated machinery protection solutions.

• Industrial Installations Requiring Regional Approval
The CN configuration provides a country-specific approval option, making the probe suitable for industrial projects requiring China-region compliance documentation and installation flexibility.

Key Strengths at a Glance

• 3300 XL 8 mm Eddy-Current Technology
Uses proven non-contact eddy-current sensing technology to provide reliable shaft vibration and position measurements without physical contact with the rotating surface.

• 1.2 Meter Probe System Length
The 12 configuration provides a 1.2-meter total length option, supporting compact machinery layouts and flexible installation requirements.

• 2.0 Inch Case Length Design
The 20 configuration specifies the overall case length option, providing a suitable mechanical arrangement for various mounting applications.

• Miniature Coaxial ClickLoc Connector
The probe uses a miniature coaxial ClickLoc connector design, improving connection reliability and simplifying installation in industrial monitoring systems. 

Technical FAQs

1. What is the primary function of the Bently Nevada 173688-01-20-12-CN probe?
It measures shaft displacement and vibration using non-contact eddy-current technology for rotating machinery condition monitoring.

2. Which product family does this probe belong to?
It belongs to the Bently Nevada 3300 XL 8 mm Proximity Probe family.

3. What measurement principle does this probe use?
It uses eddy-current sensing technology to measure changes in the gap between the probe tip and the rotating shaft.

4. Does the probe operate independently without additional electronics?
No. It requires a compatible Bently Nevada Proximitor Sensor to process the raw displacement signal.

5. What type of machinery commonly uses this probe?
It is commonly installed on turbines, compressors, pumps, motors, and other critical rotating equipment.

6. What does the 8 mm designation indicate?
The 8 mm designation refers to the probe sensing system size and its standard measurement capability for industrial shaft monitoring.

7. What is the purpose of the CN suffix?
The CN suffix identifies the country-specific approval configuration for the probe.

8. Can this probe measure both vibration and shaft position?
Yes. When paired with the correct Proximitor Sensor and monitoring module, it can provide both dynamic vibration and static shaft position measurements.

9. What factors should be checked before replacing this probe?
Users should confirm probe model, thread configuration, system length, connector type, cable specification, and approval requirements.

10. Which monitoring systems can use this probe signal?
It is designed for integration with compatible Bently Nevada monitoring systems, including 3300 and 3500 series machinery protection platforms.