High-Precision 5 mm Proximity Probe for Critical Machinery Monitoring
The Bently Nevada 330171-00-52-05-02-05 3300 5 mm Proximity Probe is a non-contact eddy-current sensor designed for the 3300 5 mm Proximity Transducer System. It provides accurate measurement of shaft vibration, radial displacement, shaft position, and Keyphasor® signals on rotating machinery. When used with a compatible 3300 XL Extension Cable and 3300 XL Proximitor® Sensor, the system delivers stable, factory-calibrated performance for machinery protection and predictive maintenance.
This configuration includes a 1/4-28 UNF threaded probe without armor, an overall case length of 5.2 inches, a 0.5 m (1.6 ft) integral triaxial cable, a Miniature ClickLoc® connector, and Multiple Agency Approvals, making it suitable for demanding industrial and hazardous-area applications.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330171-00-52-05-02-05 |
| Product Type | 3300 5 mm Proximity Probe |
| Series | 3300 5 mm Proximity Transducer System |
| Measurement Technology | Eddy-current, non-contact |
| Probe Thread | 1/4-28 UNF |
| Armor | Without armor |
| Unthreaded Length | 00 = 0.0 in |
| Overall Case Length | 52 = 5.2 in (132.1 mm) |
| Integral Cable Length | 05 = 0.5 m (1.6 ft) |
| Connector Option | 02 – Miniature coaxial ClickLoc® connector |
| Agency Approval | 05 – Multiple Approvals |
| Probe Cable | 75 Ω FEP-insulated triaxial cable |
| Probe Housing | AISI 303/304 Stainless Steel |
| Probe Tip Material | Polyphenylene Sulfide (PPS) |
| Tensile Strength | 222 N (50 lbf) |
| Operating Temperature | -35°C to +177°C (-31°F to +351°F) |
| Minimum Bend Radius | 25.4 mm (1 in) |
| Approximate Weight | 0.323 kg |
| Shipping Weight | Approx. 2.0 kg |
Typical Applications
The 330171-00-52-05-02-05 is widely installed on:
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Steam turbines
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Gas turbines
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Centrifugal compressors
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Pumps
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Electric motors
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Gearboxes
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Blowers
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Fans
Typical monitoring functions include:
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Shaft vibration measurement
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Radial shaft displacement
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Shaft position monitoring
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Rotor dynamic analysis
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Machine protection systems
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Predictive maintenance programs
Key Features
Extended 5.2-Inch Probe Body
The 5.2-inch (132.1 mm) case length is ideal for installations requiring a longer probe body to reach the target shaft through thicker bearing housings or mounting brackets.
High-Accuracy Eddy-Current Sensing
The probe measures shaft movement without physical contact, ensuring high repeatability while eliminating mechanical wear.
Rugged Industrial Construction
The combination of a 303/304 stainless steel case and PPS probe tip provides excellent resistance to corrosion, oil, vibration, and elevated temperatures.
Secure ClickLoc® Connector
The Miniature ClickLoc® connector provides a reliable electrical connection and simplifies installation while reducing the possibility of connector loosening due to machine vibration.
Multiple Agency Approvals
The 05 approval option supports installations requiring multiple international hazardous-area certifications.
Complete System Compatibility
The probe is designed to operate with compatible 3300 XL Extension Cables and 3300 XL Proximitor® Sensors, ensuring complete system interchangeability and factory-calibrated accuracy.
Frequently Asked Questions
1. What is the 330171-00-52-05-02-05 used for?
It is used for continuous non-contact monitoring of shaft vibration, shaft position, and radial displacement on rotating machinery.
2. What does the "52" option indicate?
It specifies an overall probe case length of 5.2 inches (132.1 mm) according to the 3300 5 mm ordering code.
3. What cable length is included?
This model includes a 0.5-meter (1.6-foot) integral triaxial cable.
4. Which connector is supplied?
It uses the Miniature coaxial ClickLoc® connector (Option 02).
5. What does the "05" approval option mean?
It indicates the Multiple Approvals version for installations requiring international hazardous-area certifications.
6. Can this probe operate alone?
No. It must be installed as part of the complete 3300 5 mm Proximity Transducer System, together with a compatible extension cable and Proximitor® Sensor.
7. What material is used for the sensing tip?
The probe tip is manufactured from Polyphenylene Sulfide (PPS) for excellent thermal and chemical resistance.
8. What operating temperatures can it withstand?
It is rated for continuous operation from -35°C to +177°C (-31°F to +351°F).
9. Which industries commonly use this probe?
It is widely used in oil & gas, petrochemical, power generation, mining, marine, and general industrial rotating machinery.
10. What are the advantages of this configuration?
Its 5.2-inch probe body, 0.5-meter cable, ClickLoc® connector, Multiple Agency Approvals, and rugged stainless-steel construction make it ideal for long-reach installations requiring reliable machinery condition monitoring.
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