Introduction
The Bently Nevada 330193-09-20-10-00 is a 3300 XL 8 mm Extended Temperature Range (ETR) Proximity Probe with an M10 x 1 metric thread, 90 mm unthreaded length, 200 mm overall case length, and 1.0 m (3.3 ft) total probe length.
This configuration belongs to the 330193 family of non-armored metric 3300 XL 8 mm probes. It is designed for non-contact measurement of conductive rotating machinery targets and can be integrated into a compatible 3300 XL proximity transducer system for shaft vibration, radial position, axial position, and other machinery-monitoring measurements.
Compared with the shorter 330193 configurations, the 200 mm case length gives this model a much deeper mechanical profile, while the 1-meter cable length provides a practical connection distance without the excess cable associated with longer 5 m or 9 m versions. It is a particularly useful configuration for machinery where installation geometry matters as much as electrical system length.
Technical Specifications
The ordering code provides the key configuration details: 330193 identifies the M10 x 1, non-armored 3300 XL 8 mm ETR probe family; 09 specifies the 90 mm unthreaded length; 20 specifies the 200 mm case length; 10 indicates a 1.0 m total length; and 00 identifies the standard configuration without the multiple-approval option. The current 3300 XL documentation specifies that metric probe unthreaded length is ordered in 10 mm increments and must be at least 20 mm shorter than the case length.
| Specification | 330193-09-20-10-00 |
|---|
| Manufacturer | Bently Nevada |
| Product Family | 3300 XL |
| Product Type | 8 mm ETR Proximity Probe |
| Model Number | 330193-09-20-10-00 |
| Probe Series | 330193 |
| Thread | M10 x 1 |
| Construction | Standard, non-armored |
| Unthreaded Length | 90 mm |
| Overall Case Length | 200 mm |
| Total Probe Length | 1.0 m (3.3 ft) |
| Probe Tip Diameter | 8.0 mm (0.31 in) |
| Cable Type | 75 Ω triaxial |
| Cable Outside Diameter | Approx. 3.68 mm (0.145 in) maximum |
| Connector | Miniature male coaxial connector |
| Connector Diameter | Approx. 7.24 mm (0.285 in) maximum |
| Cable Length Tolerance | +30%, -0% |
| Agency Approval Option | 00 – Not required |
| System Family | 3300 XL 8 mm Proximity Transducer System |
| Typical Measurement | Shaft vibration and position |
Applications
The 330193-09-20-10-00 is designed for non-contact measurement on rotating machinery as part of a properly matched 3300 XL 8 mm proximity transducer system.
The system measures the distance between the probe tip and a conductive target and can provide both static position and dynamic vibration information. The 3300 XL 8 mm architecture is commonly applied to fluid-film bearing machinery as well as Keyphasor reference and speed measurement applications.
Typical applications include:
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Steam turbine shaft monitoring
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Gas turbine machinery protection
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Compressor vibration monitoring
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Generator rotor monitoring
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Pump and motor shaft measurement
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Radial shaft-position monitoring
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Axial shaft-position measurement
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Bearing vibration monitoring
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Critical rotating machinery protection
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Machinery condition-monitoring systems
The 90 mm unthreaded section and 200 mm case length are particularly relevant when the probe must pass through a deeper mounting arrangement or reach a specific measurement position within the machinery.
The 1.0 m configuration is also useful when the associated monitoring electronics can be installed relatively close to the machine, keeping the installation cleaner than a longer 5 m or 9 m configuration.
Advantages
Extended 200 mm case geometry
The 200 mm case length provides significantly more mechanical reach than compact 20 mm or 80 mm configurations. This makes the probe attractive for machinery mounting arrangements where a longer body is required.
90 mm unthreaded section
The 90 mm unthreaded length provides additional flexibility when positioning the probe through a mounting bracket, housing, or machine enclosure.
1-meter total length
The 1.0 m configuration strikes a useful balance between installation reach and cable management. It is long enough for many compact machinery installations while avoiding unnecessary cable slack.
Metric M10 x 1 mounting
The M10 x 1 thread makes the probe suitable for metric mounting arrangements and provides a direct alternative to the imperial-threaded 330191 and 330192 families.
Slim non-armored construction
The standard non-armored cable has a relatively small diameter, making it easier to route through compact instrumentation spaces where additional mechanical protection is not necessary.
8 mm non-contact sensing
The 8 mm sensing tip is designed for reliable non-contact measurement of conductive targets, supporting important machinery parameters such as shaft position and vibration.
Defined 3300 XL system architecture
The probe is intended to operate as part of a complete 3300 XL system consisting of compatible probe, extension cable where applicable, and Proximitor Sensor. This matched architecture helps maintain the intended electrical characteristics of the measurement system.
Practical maintenance option
For replacement applications requiring M10 x 1 mounting, 90 mm unthreaded length, 200 mm case length, and 1.0 m total length, this model provides a highly specific configuration that can simplify component selection and reduce the risk of choosing a physically similar but electrically different probe.
Technical FAQs
1. What is the Bently Nevada 330193-09-20-10-00?
It is a 3300 XL 8 mm ETR Proximity Probe featuring an M10 x 1 metric thread, 90 mm unthreaded length, 200 mm overall case length, and 1.0 m total probe length.
2. What thread does the 330193-09-20-10-00 use?
It uses an M10 x 1 metric thread and belongs to the 330193 family of non-armored metric 3300 XL 8 mm probes.
3. What does “09” mean in the model number?
The 09 identifies the 90 mm unthreaded length.
4. What does “20” represent?
The 20 identifies the 200 mm overall case length.
5. How long is the 330193-09-20-10-00?
The nominal total probe length is 1.0 meter (3.3 feet).
6. Is this probe armored?
No. The 330193 series is the M10 x 1 non-armored configuration. The 330194 family is the corresponding M10 x 1 armored version.
7. What is the diameter of the probe tip?
The sensing tip has a nominal diameter of 8.0 mm (0.31 in).
8. What type of cable does it use?
It uses a 75 Ω triaxial cable. The standard cable has a maximum outside diameter of approximately 3.68 mm (0.145 in).
9. What is the approximate weight?
The published probe weight is approximately 323 g/m. For a nominal 1.0 m configuration, this corresponds to approximately 0.323 kg before packaging.
10. What should be checked before replacing this probe?
Verify the complete configuration: M10 x 1 thread, 90 mm unthreaded length, 200 mm case length, 1.0 m total length, non-armored cable, connector configuration, approval requirement, and compatible Proximitor Sensor. The 3300 XL system should be matched by its complete electrical and mechanical configuration rather than by the 8 mm tip diameter alone.
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