Introduction
The Bently Nevada 330171-00-12-10-01-CN is a 3300 5 mm proximity probe designed for precise non-contact measurement of shaft position and vibration in rotating machinery. Built around an eddy-current proximity sensing principle, the probe is intended for use with compatible 3300 series proximity monitoring systems where dependable mechanical condition data is essential.
This particular configuration combines a 1/4-28 UNF threaded probe, 1.2-inch overall case length, 1.0-meter cable, and a miniature coaxial ClickLoc connector with connector protection. The CN suffix identifies the country-specific approval configuration, making this version particularly relevant to installations requiring the corresponding regional approval package.
For maintenance teams working with turbines, compressors, pumps, motors, and other critical rotating equipment, the 330171-00-12-10-01-CN offers a practical combination of compact installation dimensions, proven sensing technology, and straightforward integration into an established 3300 monitoring arrangement.
Technical Specifications
The 330171-00-12-10-01-CN is configured as a standard 3300 5 mm probe without armor. Its 1.0-meter cable provides a convenient connection length for many machinery-monitoring installations while the compact probe body supports applications where installation space is limited.
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model | 330171-00-12-10-01-CN |
| Series | 3300 5 mm Proximity Probe |
| Probe Type | Eddy-current proximity probe |
| Thread | 1/4-28 UNF-2A |
| Unthreaded Length | 0.0 in |
| Overall Case Length | 1.2 in (30.5 mm) |
| Cable Length | 1.0 m (3.3 ft) |
| Connector | Miniature coaxial ClickLoc connector with connector protector |
| Cable Type | Standard 75 Ω triaxial probe cable |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Probe Case Material | AISI 303/304 stainless steel |
| Probe Temperature Range | -35°C to +177°C (-31°F to +351°F) |
| Minimum Cable Bend Radius | 25.4 mm (1.0 in) |
| Recommended Probe Case Torque | 5.1 N·m (45 in-lb) |
| Maximum Probe Case Torque | 7.3 N·m (65 in-lb) |
| Probe Weight | Approximately 323 g |
| Total System Weight | Approximately 0.71 kg typical, depending on system configuration |
| Approval Configuration | CN, country-specific approval option |
Applications
This 5 mm proximity probe is suitable for monitoring:
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Shaft radial vibration
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Axial/thrust position
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Rotor displacement
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Rotating-shaft position
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Bearing and machine condition
Typical machinery includes steam and gas turbines, compressors, pumps, motors, gearboxes, and generators.
Advantages
Compact 5 mm Sensing Design
The 3300 5 mm format provides a compact sensing solution for machinery installations where probe access and mounting space are important considerations.
Durable Industrial Construction
A stainless-steel probe case and PPS sensing tip provide a robust construction suited to demanding industrial environments. The probe is specified for operation across a broad temperature range of -35°C to +177°C.
Practical 1.0-Meter Cable Configuration
The 1.0-meter cable offers a convenient balance between installation flexibility and manageable cable routing, particularly for machinery where the monitoring electronics are positioned relatively close to the probe location.
Secure ClickLoc Connection
The miniature coaxial ClickLoc connector provides a practical connection arrangement for compatible 3300 monitoring systems. The connector protector also adds mechanical protection during installation and service.
Suitable for Critical Machinery Monitoring
When integrated with the appropriate Proximitor sensor and monitoring hardware, the probe can provide the shaft displacement information needed for vibration and machinery-protection strategies.
Easy Replacement for Compatible Installations
For facilities already using compatible Bently Nevada 3300 5 mm systems, matching the exact probe configuration can simplify maintenance planning and spare-parts management. The complete part number should always be checked before replacement to ensure thread, cable length, connector, and approval requirements match the existing installation.
Technical FAQs
1. What is the Bently Nevada 330171-00-12-10-01-CN?
It is a Bently Nevada 3300 series 5 mm proximity probe configured with a 1/4-28 UNF thread, 1.2-inch case length, 1.0-meter cable, miniature coaxial ClickLoc connector, and CN country-specific approval configuration.
2. What does the 330171 part number indicate?
330171 identifies the 3300 5 mm proximity probe with a 1/4-28 UNF thread and without armor. The remaining suffixes define the probe's mechanical and connection configuration.
3. How should the suffix “00-12-10-01-CN” be interpreted?
The 00 indicates a 0.0-inch unthreaded length, 12 indicates a 1.2-inch overall case length, 10 specifies a 1.0-meter total cable length, 01 identifies the miniature coaxial ClickLoc connector with connector protection and standard cable, and CN identifies the country-specific approval option.
4. What is the probe's cable length?
This model uses a 1.0-meter (3.3-foot) cable.
5. What mounting thread does this probe use?
The 330171 version uses a 1/4-28 UNF-2A mounting thread. This is an important selection parameter when replacing an existing proximity probe.
6. What is the operating temperature range?
The specified probe temperature range is approximately -35°C to +177°C (-31°F to +351°F).
7. What is the weight of the 330171-00-12-10-01-CN?
The individual 3300 5 mm probe weighs approximately 323 g (11.39 oz). A complete transducer system will weigh more depending on the extension cable and associated Proximitor sensor.
8. Can this probe be used for vibration monitoring?
Yes. When paired with compatible 3300 monitoring electronics, the probe can be used to detect shaft vibration and displacement associated with rotating machinery.
9. What should be checked before replacing an existing probe?
Verify the complete part number rather than matching only the 330171 base model. Thread type, case length, cable length, connector style, and approval configuration can all affect compatibility.
10. Is the CN version suitable for installations requiring regional approvals?
The CN suffix represents a country-specific approval configuration. For safety-critical or hazardous-area installations, the exact approval requirements of the installation should be verified against the equipment documentation before procurement and installation.
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