Introduction
The Bently Nevada 330709-000-030-10-02-00 is a 3300 XL 11 mm Proximity Probe engineered for non-contact measurement of shaft vibration, radial position, and displacement in critical rotating machinery. It is the unarmored metric M16 x 1.5 version of the 3300 XL 11 mm standard-mount probe family.
This particular configuration combines a 0 mm unthreaded section, 30 mm overall case length, 1.0 m integral cable, miniature coaxial ClickLoc connector, standard cable, and no agency approval requirement. The compact 30 mm body makes it an attractive option where mounting depth is limited but the application still calls for the extended measurement capability of an 11 mm proximity system.
The 3300 XL 11 mm platform is designed as part of a complete proximity transducer system, working with compatible Proximitor Sensors and extension cables to provide stable, repeatable measurements for machinery condition monitoring and protection.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Part Number | 330709-000-030-10-02-00 |
| Product Family | 3300 XL |
| Product Type | 11 mm Proximity Probe |
| Probe Model | 330709 |
| Mounting Type | Standard Mount |
| Sensing Diameter | 11 mm |
| Mounting Thread | M16 x 1.5 |
| Construction | Unarmored |
| Unthreaded Length | 0 mm |
| Overall Case Length | 30 mm |
| Integral Cable Length | 1.0 m (3.3 ft) |
| Connector | Miniature coaxial ClickLoc |
| Cable Type | Standard cable |
| Connector Protector | Not included |
| Agency Approval | 00 – Not required |
| Measurement Principle | Eddy-current, non-contact |
| Nominal Linear Range | Approximately 4 mm (160 mils) |
| Nominal Scale Factor | Approximately 3.94 V/mm (100 mV/mil) |
| Typical Target Diameter | 30.5 mm (1.2 in) or larger |
| Typical Measurements | Radial vibration, radial position, axial position |
| Cable Insulation | FEP |
| Probe Housing | Stainless steel |
| Approximate Product Weight | Approximately 70 g |
| Typical Shipping Weight | Approximately 1 kg, packaging dependent |
Applications
Rotating Shaft Vibration Monitoring
The 3300 XL 11 mm proximity system provides non-contact shaft measurement for critical rotating machinery. It can be positioned radially to monitor changes in shaft movement and vibration.
Axial Position Measurement
The extended linear range of the 11 mm system makes it suitable for compatible axial-position monitoring arrangements, particularly on large rotating equipment.
Turbine Monitoring
Steam and gas turbines can use compatible 3300 XL 11 mm systems to monitor shaft displacement and vibration as part of a broader machinery-protection strategy.
Compressor Applications
The probe can be incorporated into appropriate compressor monitoring systems where accurate shaft-position or vibration information is required.
Motor and Generator Monitoring
Large motors and generators can benefit from non-contact proximity measurement, especially where shaft movement needs to be monitored continuously without introducing mechanical contact.
Machinery Protection
When connected to a compatible 3300 XL Proximitor Sensor, the probe becomes part of a complete measurement chain capable of supplying displacement information for monitoring, alarms, trending, and protective functions.
Compact Mounting Locations
The 30 mm case length is particularly useful where installation depth is restricted. Instead of using a longer probe body simply because the sensing diameter is larger, this configuration provides a compact mechanical option within the 3300 XL 11 mm family.
Metric Industrial Installations
The M16 x 1.5 thread makes this model appropriate for compatible metric machinery, mounting brackets, and existing probe installations.
Advantages
Compact 30 mm Housing
The short 30 mm case length gives the 330709-000-030-10-02-00 a clear advantage in installations where available mounting space is limited.
M16 x 1.5 Metric Thread
The M16 x 1.5 mounting interface provides a robust metric installation solution and clearly differentiates this probe from the M14 x 1.5 and imperial-thread versions.
11 mm Sensing Platform
The 11 mm sensing design offers a nominal 4 mm linear range, providing useful displacement capability for applications that require more range than a typical 8 mm proximity probe.
Non-Contact Operation
Eddy-current sensing allows shaft displacement to be measured without physical contact. This eliminates mechanical wear at the sensing interface and supports continuous machinery operation.
1 m Integral Cable
The 1.0 m cable keeps the overall assembly practical for installations where the Proximitor Sensor can be located relatively close to the probe.
ClickLoc Connector
The miniature coaxial ClickLoc connector provides a secure, compact interface with compatible 3300 XL system components.
Unarmored Construction
The unarmored design reduces bulk and is well suited to installations where the cable does not require additional mechanical armor.
Simple Configuration
The 10-02-00 combination provides a straightforward standard-cable configuration without additional approval requirements, making it a practical choice for suitable non-hazardous installation environments.
Strong Replacement Value
For an existing 330709 installation, matching the complete part number helps ensure that the thread, case length, cable length, connector configuration, and approval status are correctly reproduced.
Technical FAQs
1. What is the Bently Nevada 330709-000-030-10-02-00?
It is a 3300 XL 11 mm standard-mount proximity probe using an M16 x 1.5 thread, unarmored construction, 30 mm case, 1 m cable, and standard ClickLoc connector.
2. What thread does the 330709 use?
The 330709 family uses an M16 x 1.5 metric thread. It is the unarmored M16 x 1.5 version of the standard-mount 3300 XL 11 mm probe family.
3. What does the 000 option specify?
The 000 option identifies a 0 mm unthreaded length in the metric ordering configuration.
4. What does 030 mean?
The 030 option specifies a 30 mm overall case length.
5. How long is the cable?
The 10 option specifies a 1.0 m (3.3 ft) integral cable.
6. What connector does this probe use?
The 02 option specifies a miniature coaxial ClickLoc connector with standard cable.
7. Does the probe include a connector protector?
No. The 02 configuration does not include the connector-protector option. The 01 configuration is used when a ClickLoc connector with protector is required.
8. Is the 330709 probe armored?
No. 330709 is the unarmored M16 x 1.5 version. The corresponding armored M16 x 1.5 model is 330710.
9. 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 of approximately 3.94 V/mm (100 mV/mil).
10. Can the 330709 replace a 330704?
Not as a direct mechanical substitution. Although both belong to the 3300 XL 11 mm family, the 330709 uses M16 x 1.5 and is unarmored, while the 330704 uses M14 x 1.5 and armored construction. Thread size, case length, cable configuration, and installation requirements should all be checked before replacement.
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