Introduction
The Bently Nevada 330171-00-10-10-02-05 is a 3300 5 mm Proximity Probe developed for precise non-contact measurement of shaft vibration and displacement in rotating machinery.
As part of the Bently Nevada 3300 5 mm Proximity Transducer System, this probe works with a compatible extension cable and Proximitor Sensor to convert the relative position of a conductive shaft into an electrical signal suitable for machinery monitoring. Its compact 5 mm probe tip makes it well suited to applications where installation space is limited but dependable shaft-position and vibration measurements are still required.
The 330171 configuration uses a 1/4-28 UNF threaded probe case, while the 00 first option indicates no additional unthreaded probe length. The 10 case-length option corresponds to a 1.0-inch overall case length, and the second 10 identifies a 1.0-meter total probe cable length. The 02 connector option specifies a miniature coaxial ClickLoc connector with standard cable, while the final 05 represents the applicable multiple-approval configuration.
For maintenance engineers and plant operators, the 330171-00-10-10-02-05 offers a proven solution for monitoring critical rotating assets where accurate shaft dynamics are essential to equipment protection and condition assessment.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330171-00-10-10-02-05 |
| Product Series | 3300 |
| Product Type | 5 mm Proximity Probe |
| Probe Family | 3300 5 mm Proximity Probe |
| Thread Type | 1/4-28 UNF |
| Unthreaded Length | 0.0 in |
| Overall Case Length | 1.0 in |
| Total Probe Length | 1.0 m (3.3 ft) |
| Connector Option | Miniature coaxial ClickLoc connector |
| Cable Type | Standard 75 Ω triaxial cable |
| Cable Insulation | FEP |
| Probe Tip Diameter | Approx. 5.2 mm |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Probe Case Material | Stainless steel |
| Probe Construction | Standard, without armor |
| Agency Approval | Multiple-approval configuration |
| Typical Measurement | Shaft vibration and displacement |
| System Type | Non-contact eddy-current proximity measurement |
| Operating Temperature | -35°C to +177°C |
| Typical System Sensitivity | Approximately 200 mV/mil |
| Typical Linear Range | Approximately 2 mm, system dependent |
| Approximate Weight | 0.323 kg |
Applications
Steam Turbine Shaft Monitoring
The 330171-00-10-10-02-05 can be used in suitable turbine monitoring arrangements to measure relative shaft movement. Continuous proximity measurement helps identify abnormal vibration, rotor movement, and developing mechanical conditions before they become more serious.
Gas Turbine Machinery
Gas turbines operate under demanding mechanical conditions where shaft stability is critical. A properly configured 3300 5 mm proximity system can provide continuous non-contact measurements for machinery condition monitoring.
Compressor Rotor Monitoring
Compressors can experience changes in rotor position, vibration, and bearing behavior as operating conditions change. The 330171 probe provides the sensing element required for compatible 3300 proximity-monitoring arrangements.
Pump Condition Monitoring
Critical process pumps can benefit from shaft displacement and vibration monitoring. The compact 5 mm probe format is useful where sensor installation space around the machinery is restricted.
Generator Shaft Measurement
Large generators may use proximity probes to monitor shaft movement relative to bearing structures. Reliable displacement data can support machinery protection and maintenance decisions.
Bearing Monitoring
The probe can be installed near suitable bearing locations to monitor relative shaft movement. This is particularly valuable on machines where early identification of rotor instability can prevent costly secondary damage.
Gearbox and Rotating Equipment
In appropriately designed systems, proximity measurement can provide information about shaft movement and mechanical behavior in gearboxes and other high-value rotating assemblies.
Machinery Protection
A proximity probe is an important part of a machinery-protection measurement chain. The 330171-00-10-10-02-05 can provide the physical sensing interface required for a compatible 3300 monitoring arrangement.
Retrofit Applications
The probe is also suitable for replacement projects where an existing installation uses the corresponding 3300 5 mm probe configuration. Matching the full part number helps maintain the intended mechanical, cable, connector, and approval characteristics.
Space-Constrained Installations
The 5 mm sensing tip provides a compact alternative for applications where larger proximity-probe designs may not fit comfortably. This can be particularly useful around bearing housings and other confined machinery locations.
Advantages
Compact 5 mm Sensing Design
The smaller sensing diameter is one of the main strengths of the 3300 5 mm family. It allows engineers to install proximity measurement points in locations where available space is limited.
Precise Non-Contact Measurement
The probe provides non-contact measurement of the distance between the probe tip and a conductive rotating target. This eliminates physical contact between the sensing element and shaft during normal operation.
1/4-28 UNF Threaded Housing
The 1/4-28 UNF mounting configuration provides a compact threaded installation format commonly used in the 3300 5 mm probe family.
1-Meter Standard Cable
The 1.0-meter probe cable provides useful installation reach between the probe and the associated extension-cable connection without making the probe lead unnecessarily long.
Miniature ClickLoc Connector
The 02 connector configuration uses a miniature coaxial ClickLoc connector with standard cable. This provides a compact interface suitable for the 3300 proximity transducer arrangement.
Stainless-Steel Probe Case
The probe case uses stainless steel construction, providing a robust mechanical housing for industrial machinery-monitoring applications.
PPS Probe Tip
The probe tip uses polyphenylene sulfide (PPS), a material selected for the sensing-tip construction of the 3300 5 mm probe family.
Wide Operating Temperature Capability
The 3300 5 mm probe family is designed for an operating temperature range of approximately -35°C to +177°C, providing useful flexibility across many industrial machinery environments.
Strong Mechanical Connection
The 3300 5 mm probe design provides a defined mechanical connection between the probe case and cable assembly, supporting dependable installation when the probe is correctly mounted and handled.
Suitable for Critical Machinery
The probe can be integrated into monitoring systems for turbines, compressors, generators, pumps, motors, and other rotating equipment where shaft displacement and vibration information is important.
Multiple-Approval Configuration
The final 05 option identifies the applicable multiple-approval configuration, making this version distinct from standard 3300 5 mm probes with different agency-approval selections.
Easy Configuration Identification
The part number provides a useful breakdown of the product configuration:
- 330171 — 3300 5 mm proximity probe, 1/4-28 UNF thread, without armor
- 00 — 0.0 in unthreaded length
- 10 — 1.0 in overall case length
- 10 — 1.0 m total probe length
- 02 — Miniature coaxial ClickLoc connector, standard cable
- 05 — Multiple-approval configuration
This makes the exact configuration easier to identify during maintenance planning and spare-parts procurement.
Technical FAQs
1. What is the Bently Nevada 330171-00-10-10-02-05?
The 330171-00-10-10-02-05 is a Bently Nevada 3300 5 mm Proximity Probe with a 1/4-28 UNF thread, 1.0-inch case length, 1.0-meter total cable length, miniature coaxial ClickLoc connector, and 05 approval configuration.
2. What does the 330171 model number represent?
330171 identifies the 3300 5 mm proximity probe with a 1/4-28 UNF thread and standard non-armored construction.
3. What does the first 00 option mean?
The first 00 identifies a 0.0-inch unthreaded length option.
4. What does the 10 case-length option mean?
The first 10 after the unthreaded-length code specifies an overall probe case length of 1.0 inch.
5. How long is the probe cable?
The second 10 identifies a 1.0-meter total probe length, equivalent to approximately 3.3 feet.
6. What connector does this probe use?
The 02 connector option specifies a miniature coaxial ClickLoc connector with standard cable.
7. Is the probe armored?
No. The 330171 family is the standard non-armored 1/4-28 UNF probe configuration. Armored versions belong to different 3300 5 mm probe configurations.
8. What is the operating temperature range?
The 3300 5 mm probe family has an operating temperature range of approximately -35°C to +177°C.
9. What is the approximate weight?
The typical product weight for this 3300 5 mm probe configuration is approximately 0.323 kg. Packaging and shipping weight can be higher.
10. What should be verified before replacing this probe?
Confirm the complete 330171-00-10-10-02-05 part number, 1/4-28 UNF thread, case length, 1.0-meter cable length, connector type, approval configuration, mating extension cable, and Proximitor Sensor. The complete transducer system should be treated as one matched measurement chain.
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