Introduction
The Bently Nevada 330704-005-040-10-02-00 is presented as a 3300 XL 11 mm Proximity Probe for non-contact monitoring of shaft vibration and displacement on critical rotating equipment.
One important ordering detail should be checked before listing or purchasing this item: the commonly documented 330704 configuration for a 40 mm case length, 1.0 m cable, ClickLoc connector, and no special agency approval is 330704-000-040-10-02-00. The 330704 family identifies the 3300 XL 11 mm probe with M14 x 1.5 thread and armor, while the published configuration tables use a three-digit unthreaded-length field. Therefore, 330704-005-040-10-02-00 may represent a transcription or catalog-number variation and should be verified against the probe nameplate or original purchasing documentation before it is treated as an exact replacement.
Assuming the intended configuration is the documented 330704-000-040-10-02-00, this is a compact metric probe with a 40 mm overall case length, 1 m integral cable, and standard ClickLoc connector. It is particularly attractive for machinery installations where mounting depth is limited but the extended-range 11 mm sensing platform is preferred.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Part Number Provided | 330704-005-040-10-02-00 |
| Documented Comparable Configuration | 330704-000-040-10-02-00 |
| Product Family | 3300 XL |
| Product Type | 11 mm Proximity Probe |
| Probe Model | 330704 |
| Sensing Diameter | 11 mm |
| Mounting Thread | M14 x 1.5 |
| Construction | Armored |
| Unthreaded Length | 0 mm for the documented 000 configuration |
| Overall Case Length | 40 mm |
| Integral Cable Length | 1.0 m (3.3 ft) |
| Connector | Miniature coaxial ClickLoc |
| Cable Type | Standard cable |
| Connector Protector | Not included with option 02 |
| Agency Approval | 00 – Not required |
| Measurement Principle | Eddy-current, non-contact sensing |
| Nominal Linear Range | Approximately 4 mm (160 mils) |
| Nominal Scale Factor | Approximately 3.94 V/mm (100 mV/mil) |
| Typical Measurement | Shaft vibration, radial position, axial position |
| Typical System Use | Machinery protection and condition monitoring |
| Approximate Bare Probe Weight | Approximately 0.1–0.2 kg |
| Shipping Weight | Depends on packaging and accessories |
Applications
Turbine Shaft Monitoring
The 3300 XL 11 mm platform is designed for critical rotating machinery and can be used to monitor shaft vibration and displacement on suitable turbine installations.
Compressor Monitoring
The probe can form part of a proximity measurement system on compressors, providing continuous shaft-motion information for machinery-condition monitoring.
Generator and Motor Applications
Large generators and motors can use non-contact proximity sensing to observe shaft movement without introducing mechanical contact between the sensor and rotating shaft.
Radial Vibration Measurement
The probe can be installed in suitable radial positions to detect changes in shaft movement and provide vibration information to compatible monitoring equipment.
Axial Position Monitoring
The 11 mm platform can be used in appropriate axial-position measurement arrangements where the nominal displacement range is suitable for the machine geometry.
Machinery Protection
When paired with the correct Proximitor Sensor and monitoring system, the probe can provide the input needed for alarm and protective functions.
Space-Limited Installations
The 40 mm case length makes this configuration particularly interesting for machinery where conventional longer probe bodies cannot be installed easily.
Advantages
Compact Mechanical Profile
A 40 mm case length offers a practical solution for tight mounting locations. This is a key advantage when physical installation space is more restrictive than the electrical measurement requirements.
11 mm Extended-Range Sensing
The 3300 XL 11 mm design provides a nominal 4 mm linear range, giving it useful displacement-monitoring capability for demanding rotating machinery.
Metric M14 x 1.5 Thread
The M14 x 1.5 mounting configuration provides a standardized metric installation option for compatible machinery.
Standard ClickLoc Connection
The 02 connector configuration uses a miniature coaxial ClickLoc connector with standard cable. It provides a straightforward connection to compatible system components.
1 m Integral Cable
A 1.0 m cable keeps the probe assembly manageable and works well where the Proximitor Sensor is installed relatively close to the measurement location.
Armored Probe Construction
The 330704 family uses an armored construction, providing additional mechanical protection for installations exposed to vibration and demanding industrial conditions.
Non-Contact Operation
Eddy-current technology allows shaft displacement to be measured without physical contact. This avoids direct sensor wear and supports continuous monitoring.
Replacement Flexibility
The 330704 family is available in multiple case lengths and cable configurations, making it easier to select a mechanically compatible replacement when the exact ordering code is correctly identified.
Technical FAQs
1. What is the Bently Nevada 330704-005-040-10-02-00?
It is identified as a 3300 XL 11 mm proximity probe. However, the documented 40 mm configuration corresponding to the remaining option sequence is 330704-000-040-10-02-00. The “005” portion should therefore be verified against the original product label before procurement.
2. What is the documented 40 mm Bently Nevada model?
The commonly documented model is 330704-000-040-10-02-00, listed as a 3300 XL 11 mm proximity probe.
3. What does the 040 option specify?
The 040 option identifies an overall case length of 40 mm in the documented configuration.
4. What mounting thread does the 330704 probe use?
The 330704 model is the M14 x 1.5 metric armored version of the 3300 XL 11 mm probe family.
5. How long is the integral cable?
The 10 option specifies a 1.0 m (3.3 ft) total cable length.
6. What does the 02 connector option mean?
The 02 option specifies a miniature coaxial ClickLoc connector with standard cable. It differs from option 01, which adds a connector protector.
7. What does the final 00 indicate?
The final 00 indicates that agency approval is not required for that ordering configuration.
8. What is the nominal measurement range?
The 3300 XL 11 mm system provides a nominal 4 mm (160 mil) linear range, with a nominal scale factor around 3.94 V/mm (100 mV/mil).
9. Is the 40 mm probe suitable for tight installations?
Yes. Provided the mounting geometry and sensing gap are appropriate, the 40 mm case length is particularly useful where available probe depth is limited.
10. What should I verify before ordering this part?
Verify the complete nameplate part number, especially the unusual 005 field in the supplied number. If the original documentation actually shows 330704-000-040-10-02-00, then the 40 mm, 1 m, standard-cable ClickLoc configuration can be matched directly. This check is recommended because the 330704 ordering structure uses defined length and connector fields, and similar-looking part numbers are not necessarily interchangeable.
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