Extended-Length 5 mm Proximity Probe for High-Performance Machinery Monitoring
The Bently Nevada 330171-00-20-90-02-05 3300 5 mm Proximity Probe is a precision eddy-current sensor engineered for the 3300 5 mm Proximity Transducer System. Designed for continuous, non-contact measurement of shaft vibration, radial displacement, and shaft position, this probe delivers exceptional accuracy and long-term reliability for critical rotating equipment operating in demanding industrial environments.
This configuration features a 1/4-28 UNF threaded probe without armor, a 2.0-inch probe case, a 9.0-meter integral triaxial cable, a Miniature ClickLoc® connector, and Multiple Agency Approvals, making it an excellent choice for oil & gas, power generation, petrochemical, and heavy industrial applications where both long cable routing and certified installation are required.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330171-00-20-90-02-05 |
| Product Type | 3300 5 mm Proximity Probe |
| Series | 3300 5 mm Proximity Transducer System |
| Probe Technology | Eddy-current, non-contact measurement |
| Thread Size | 1/4-28 UNF |
| Armor Option | Without armor |
| Unthreaded Length | 00 = 0.0 in |
| Overall Case Length | 20 = 2.0 in (50.8 mm) |
| Total Cable Length | 90 = 9.0 m (29.5 ft) |
| Connector Option | 02 – Miniature coaxial ClickLoc® connector, standard cable |
| Agency Approval | 05 – Multiple Approvals |
| Probe Cable | 75 Ω FEP-insulated triaxial cable |
| Probe Tip Material | Polyphenylene Sulfide (PPS) |
| Probe Housing | AISI 303/304 Stainless Steel |
| Tensile Strength | 222 N (50 lbf) |
| Operating Temperature | -35°C to +177°C |
| Minimum Bend Radius | 25.4 mm (1.0 in) |
| Approximate Dimensions | Probe body: 50.8 mm; Cable: 9.0 m |
| Approximate Weight | 0.32 kg |
| Shipping Weight | Approx. 2.0 kg |
Typical Applications
| Industry | Typical Equipment |
|---|
| Oil & Gas | Compressors, pumps, gas turbines |
| Power Generation | Steam turbines, generators |
| Petrochemical | Process compressors |
| Mining | Crushers, mills, heavy rotating machinery |
| Marine | Propulsion systems and auxiliary equipment |
| Manufacturing | Motors, blowers, fans, gearboxes |
Typical monitoring applications include:
-
Shaft vibration monitoring
-
Radial shaft displacement measurement
-
Shaft position monitoring
-
Bearing condition analysis
-
Predictive maintenance programs
-
Continuous machinery protection
Product Advantages
Long Cable Configuration
The 9.0-meter integral cable provides excellent installation flexibility, allowing the probe to be installed on equipment where the monitoring electronics are located farther from the measurement point without compromising signal quality.
Precision Eddy-Current Technology
Designed to provide highly repeatable non-contact measurements, the probe accurately detects both static shaft position and dynamic vibration, supporting advanced machinery diagnostics.
Rugged Industrial Construction
The combination of a stainless steel probe housing and PPS sensing tip offers excellent resistance to corrosion, vibration, oil exposure, and harsh industrial operating conditions.
Reliable ClickLoc® Connector
The Miniature ClickLoc® connector ensures a secure mechanical and electrical connection while simplifying installation and maintenance.
International Hazardous-Area Certifications
The 05 approval option includes Multiple Approvals, making the probe suitable for installations requiring internationally recognized hazardous-area certifications.
Optimized for the 3300 System
Designed specifically for the 3300 5 mm Proximity Transducer System, the probe maintains factory-calibrated performance and full interchangeability when used with compatible extension cables and Proximitor® Sensors.
Technical FAQs
1. What is the 330171-00-20-90-02-05 used for?
It is designed for non-contact monitoring of shaft vibration, radial displacement, and shaft position on rotating machinery.
2. What does the "20" option represent?
It specifies a 2.0-inch (50.8 mm) overall probe case length.
3. What cable length does this model include?
The 90 option indicates a 9.0-meter (29.5 ft) integral probe cable.
4. Which connector is supplied?
This model is equipped with a Miniature coaxial ClickLoc® connector using the standard cable configuration.
5. What does the "05" approval option indicate?
It designates the Multiple Approvals version, supporting a range of internationally recognized hazardous-area certifications.
6. Can the probe be used without an extension cable?
No. It is designed to operate with a compatible 3300 XL extension cable and 3300 XL Proximitor® Sensor as part of a complete transducer system.
7. What material is used for the sensing tip?
The sensing tip is manufactured from Polyphenylene Sulfide (PPS), offering excellent thermal stability and wear resistance.
8. What operating temperatures can the probe withstand?
The probe is rated for continuous operation from -35°C to +177°C.
9. Which industries commonly use this probe?
It is widely used in oil & gas, power generation, petrochemical processing, marine, mining, and other industries relying on critical rotating equipment.
10. What are the main advantages of this model?
Its extended 9.0-meter cable, compact 5 mm sensing design, Multiple Approvals, rugged construction, and compatibility with the 3300 5 mm Proximity Transducer System make it an excellent solution for reliable machinery condition monitoring.
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