Extended Case 5 mm Proximity Probe for Accurate Rotating Equipment Monitoring
The Bently Nevada 330171-00-28-05-02-05 3300 5 mm Proximity Probe is a compact, high-precision eddy-current sensor developed for the 3300 5 mm Proximity Transducer System. Designed to provide reliable non-contact measurement of shaft vibration, radial displacement, and shaft position, this probe helps improve equipment reliability while supporting predictive maintenance strategies for critical rotating machinery. The 3300 5 mm system is well suited for applications where installation space is limited but dependable measurement performance remains essential.
This configuration incorporates a 1/4-28 UNF threaded probe without armor, an overall case length of 2.8 inches, a 0.5-meter integral cable, a Miniature ClickLoc® connector, and Multiple Agency Approvals, making it an excellent solution for industrial environments that demand both compact installation and certified operation.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330171-00-28-05-02-05 |
| Product Type | 3300 5 mm Proximity Probe |
| Series | 3300 5 mm Proximity Transducer System |
| Measurement Principle | Eddy-current, non-contact sensing |
| Thread Size | 1/4-28 UNF |
| Armor Option | Without armor |
| Unthreaded Length | 00 = 0.0 in |
| Overall Case Length | 28 = 2.8 in (71.1 mm) |
| Total Cable Length | 05 = 0.5 m (1.6 ft) |
| Connector Option | 02 – Miniature ClickLoc® connector, standard cable |
| Agency Approval | 05 – CSA, ATEX, IECEx Multiple Approvals |
| Probe Cable | 75 Ω FEP-insulated triaxial cable |
| Probe Tip Material | Polyphenylene Sulfide (PPS) |
| Probe Housing | AISI 303/304 Stainless Steel |
| Operating Temperature | -35°C to +177°C |
| Minimum Bend Radius | 25.4 mm (1 in) |
| Tensile Strength | 222 N (50 lbf) |
| Approximate Dimensions | Probe body: 71.1 mm; Cable: 0.5 m |
| Approximate Weight | 0.32 kg |
| Shipping Weight | Approx. 2.0 kg |
Typical Applications
| Industry | Typical Equipment |
|---|
| Oil & Gas | Compressors, pumps, turbines |
| Power Generation | Steam turbines, generators |
| Petrochemical | Process compressors |
| Mining | Rotating process equipment |
| Marine | Propulsion and auxiliary machinery |
| Manufacturing | Motors, fans, gearboxes |
Typical applications include:
-
Shaft vibration monitoring
-
Radial displacement measurement
-
Rotor position monitoring
-
Bearing condition analysis
-
Predictive maintenance
-
Key Product Benefits
Extended Probe Body for Flexible Installation
The 2.8-inch case length provides additional mounting flexibility, making installation easier on machinery with deeper probe mounting locations while maintaining precise measurement performance.
Compact 5 mm Sensing Technology
The 5 mm sensing tip is ideal for equipment with limited mounting clearance while delivering highly repeatable shaft vibration and position measurements.
Rugged Industrial Construction
A corrosion-resistant stainless steel housing combined with a PPS sensing tip provides excellent durability and dependable operation in harsh industrial environments.
Secure ClickLoc® Connection
The Miniature ClickLoc® connector ensures a reliable electrical connection while simplifying installation and reducing the likelihood of connector loosening caused by vibration.
Multiple International Approvals
The 05 approval option includes CSA, ATEX, and IECEx certifications, allowing deployment in a wide range of hazardous industrial applications.
Designed for Complete System Compatibility
When used with compatible 3300 XL extension cables and 3300 XL Proximitor® Sensors, the probe delivers factory-calibrated accuracy and dependable long-term performance.
Technical FAQs
1. What is this proximity probe used for?
It measures shaft vibration, radial displacement, and shaft position without physical contact, supporting machinery protection and condition monitoring.
2. What does the "28" option indicate?
It specifies an overall probe case length of 2.8 inches (71.1 mm).
3. What cable length is supplied?
The 05 option provides a 0.5-meter (1.6 ft) integral cable.
4. Which connector is included?
The probe is equipped with a Miniature ClickLoc® connector using the standard cable configuration.
5. What does the "05" approval option represent?
It designates the Multiple Approvals version, including CSA, ATEX, and IECEx certifications for hazardous-area installations.
6. Can the probe operate independently?
No. It is designed to work with a compatible 3300 XL Proximitor® Sensor and 3300 XL extension cable as part of a complete transducer system.
7. What materials are used in the probe?
The housing is manufactured from AISI 303/304 stainless steel, while the sensing tip is made from Polyphenylene Sulfide (PPS) for durability and thermal stability.
8. What is the operating temperature range?
The probe is rated for continuous operation between -35°C and +177°C.
9. Which industries commonly use this model?
It is widely applied in oil & gas, power generation, petrochemical processing, marine, mining, and industrial manufacturing.
10. What are the main advantages of this probe?
Its compact sensing design, extended case length, certified approvals, durable construction, and compatibility with the 3300 5 mm Proximity Transducer System make it a dependable choice for long-term machinery condition monitoring.
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