ProductPRODUCT
Featured products
Contact Us
- Bently Nevada
- 330709-050-120-10-02-00
- 3300 XL 11mm Proximity Probe
- USA
- 120 mm
- 0.16kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
- 6
Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| [email protected] | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |
Bently Nevada 330709-050-120-10-02-00 Proximity Probe
1. Product Overview
The Bently Nevada 330709-050-120-10-02-00 is a 3300 XL 11 mm proximity probe designed for non-contact measurement of shaft vibration, relative displacement, and position in industrial rotating machinery.
This model has a 50 mm unthreaded section, a 120 mm case-length configuration, a 1.0 m cable, and a miniature coaxial ClickLoc connector with standard cable. The final 00 suffix indicates that no additional agency approval is selected in this configuration.
The probe uses eddy-current sensing technology. When the probe tip is positioned near a conductive target, typically a compatible machine shaft, changes in the gap produce changes in the electrical response. With a compatible Proximitor Sensor and monitoring system, these changes can be processed into useful shaft-vibration and displacement measurements.
The probe is intended for industrial condition-monitoring installations where non-contact measurement is required. It is a sensing component rather than a complete monitoring instrument, so the probe, cable, signal conditioner, and monitoring hardware must be selected as a compatible system.
2. Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 330709-050-120-10-02-00 |
| Brand | Bently Nevada |
| Product series | 3300 XL |
| Product family | 11 mm proximity probe |
| Product type | Eddy-current proximity probe |
| Primary function | Non-contact shaft vibration and displacement measurement |
| Sensing principle | Eddy-current electromagnetic sensing |
| Probe diameter class | 11 mm |
| Thread specification | M16 × 1.5 |
| Unthreaded length | 50 mm |
| Case-length option | 120 mm |
| Integral cable length | 1.0 m (approximately 3.3 ft) |
| Cable construction | Standard 75 Ω triaxial cable with FEP insulation |
| Connector type | Miniature coaxial ClickLoc |
| Cable armor | Unarmored |
| Agency approval option | 00; no additional agency approval selected |
| Nominal linear measurement range | Approximately 4.0 mm (160 mils) for a compatible 3300 XL 11 mm system |
| Typical scale factor | 3.94 V/mm (100 mV/mil) for the compatible system |
| Typical measurement target | Electrically conductive shaft or target surface |
| Probe tip material | Polyphenylene sulfide (PPS) |
| Probe case material | AISI 304 stainless steel |
| Pressure seal | Viton O-ring in the corresponding probe configuration |
| Probe DC resistance | Approximately 5.9 ± 0.5 Ω for the 1.0 m configuration |
| Recommended minimum flat target diameter | Approximately 30.5 mm |
| Recommended minimum shaft diameter | Approximately 152 mm, subject to application requirements |
| Operating temperature | Approximately −52°C to +177°C, subject to system and installation limits |
| Storage temperature | Approximately −52°C to +105°C |
| Minimum cable bend radius | Approximately 25.4 mm |
| Maximum thread engagement | Approximately 24 mm for the M16 × 1.5 configuration |
| Recommended installation torque | Approximately 21.1 N·m; follow the applicable installation instructions |
| Dimensions | 50 mm unthreaded section; 120 mm case-length option; 1.0 m cable; verify the complete assembly drawing |
| Reference product weight | Approximately 0.16 kg in one listed configuration; other listings report higher values, so confirm the supplied assembly’s actual weight |
| Shipping dimensions | Packaging-dependent; one listed package dimension is approximately 25 × 25 × 5 cm |
| Shipping weight | Depends on packaging and included accessories |
| Required companion equipment | Compatible Proximitor Sensor and monitoring equipment |
| Typical applications | Turbines, compressors, pumps, motors, and other compatible rotating machinery |
Dimensional note: The 120 mm case-length option should not automatically be treated as the total installed length. The threaded portion, unthreaded section, connector, and cable arrangement must be checked against the complete mechanical drawing.
Weight note: Published product listings do not consistently report the same weight. For procurement, installation calculations, or freight planning, use the verified weight of the exact supplied assembly in kilograms rather than assuming that a packaging weight and bare-probe weight are identical.
3. Product Introduction
The 330709-050-120-10-02-00 is designed for machinery installations where shaft movement must be measured without direct physical contact. This type of sensor is commonly used in condition-monitoring systems because it can detect small changes in the distance between the probe tip and a conductive shaft while the machine is operating.
The operating principle is based on eddy-current sensing. The probe generates an electromagnetic field near the target surface. When the target moves closer to or farther away from the probe, the electrical response changes. A compatible Proximitor Sensor processes this response and provides an output that the monitoring system can interpret.
The 50 mm unthreaded section is an important feature when checking the probe’s mechanical fit. It affects the relationship between the mounting surface, threaded section, and probe body. When replacing an existing sensor, the unthreaded length should be compared with the installed model instead of checking only the thread size.
The 120 mm case-length option provides a defined body configuration for installation planning. It can be relevant when determining the available mounting depth, adjustment range, and clearance around the bearing housing. The actual insertion position and complete assembly dimensions must be checked against the mounting drawing.
The 1.0 m integral cable is suitable for installations where the probe can be connected to the compatible signal-conditioning equipment within the available cable length. The cable should be routed carefully to avoid sharp edges, excessive heat, mechanical strain, and tight bends.
The miniature coaxial ClickLoc connector provides the connection interface for the compatible system. Correct connector matching and a secure connection are essential for reliable signal transmission. The probe should be used with the appropriate cable and signal conditioner rather than connected to unrelated instrumentation.
The model is intended for industrial measurement applications in which shaft vibration, relative displacement, or position needs to be monitored. Its actual performance depends on the complete transducer system, correct installation, suitable target material, and proper calibration.
4. Product Applications
4.1 Shaft vibration monitoring
Shaft vibration monitoring is one of the principal applications of an eddy-current proximity probe. During operation, a rotating shaft may move relative to its bearing housing because of imbalance, misalignment, bearing wear, mechanical looseness, or changing operating conditions.
The probe measures the changing gap between its tip and the shaft. A compatible monitoring system converts the signal into vibration measurements that can be recorded and compared with previous readings.
Trend data can help maintenance personnel recognize abnormal changes and determine whether further inspection is required. The probe provides measurement information; identifying the underlying mechanical fault requires interpretation of the data and consideration of the machine’s operating conditions.
4.2 Relative shaft displacement
The probe can measure relative displacement between a conductive shaft and a stationary reference point. This is useful when engineers need to understand how a shaft moves within its bearing assembly or relative to nearby stationary components.
Displacement measurements can help reveal changes in rotor position, support conditions, or mechanical alignment. The usable range depends on the matched probe system, target material, installation gap, and the measurement channel’s configuration.
4.3 Axial shaft position
In an appropriate installation, the probe can be positioned to monitor axial movement of a shaft. This is important for machines where rotor position must remain within a defined operating range.
A properly configured monitoring channel can track the shaft’s position and identify movement beyond specified limits. The probe must be aligned with the intended measurement direction, and the operating gap must be established according to the installation procedure.
4.4 Steam and gas turbines
Turbines contain rotating assemblies that require continuous monitoring of shaft behavior. A proximity probe can form part of the instrumentation used to observe rotor vibration and relative position.
The measurement data can help operators identify changes in rotor behavior and investigate possible mechanical issues. The sensor configuration must be appropriate for the turbine’s shaft geometry, mounting arrangement, operating environment, and required measurement range.
4.5 Industrial compressors
Compressors often operate for long periods under varying process loads. Monitoring shaft vibration and displacement can help maintenance personnel track mechanical behavior and identify unusual trends.
A proximity probe can be installed at a suitable measurement point when the shaft material, mounting arrangement, and monitoring system meet the application requirements.
For reciprocating compressors, rod-position and rod-drop monitoring require an appropriately designed measurement arrangement. The suitability of this specific probe must be confirmed for the intended measurement before installation.
4.6 Pumps and motors
Pumps and motors may develop shaft vibration due to imbalance, misalignment, bearing degradation, looseness, or other mechanical conditions.
Where the machine design supports non-contact shaft measurement, a compatible proximity probe can provide useful information about relative shaft movement. These readings can supplement other condition-monitoring data and help maintenance teams determine when additional inspection is necessary.
A proximity probe is not a universal replacement for an accelerometer. The correct sensor depends on the target, measurement direction, machine design, and required monitoring function.
4.7 Machinery protection systems
When connected to suitable signal-conditioning and monitoring equipment, the probe can contribute to a machinery protection system.
The monitoring channel can evaluate shaft vibration or position measurements against configured limits and provide alarms when the monitored condition exceeds the intended range.
The probe alone does not provide a complete protection function. Alarm thresholds, trip logic, and shutdown behavior must be configured and tested as part of the complete monitoring installation.
4.8 Condition-based maintenance
Continuous measurement data can help establish a baseline for normal machine operation. Changes from this baseline can be investigated to determine whether maintenance or further diagnostics are needed.
This supports condition-based maintenance by allowing work to be planned around observed machine behavior rather than relying only on fixed service intervals.
The value of this approach depends on correct installation, stable signal quality, suitable alarm settings, and appropriate interpretation of the monitoring data.
5. Product Advantages
5.1 Non-contact measurement
The probe measures the gap between its tip and a conductive target without touching the moving shaft. This avoids the mechanical wear associated with direct-contact measurement methods.
Non-contact sensing is especially useful for rotating machinery because the sensor can monitor shaft movement during operation, provided the installation remains within the specified limits.
5.2 Suitable measurement range
The compatible 3300 XL 11 mm system has a nominal linear range of approximately 4.0 mm (160 mils) and a typical scale factor of 3.94 V/mm (100 mV/mil).
These characteristics allow the system to measure relatively small changes in shaft position and vibration. The stated performance applies to the matched system and should not be interpreted as a guarantee for an incorrectly configured probe, cable, or signal conditioner.
5.3 Defined mounting configuration
The 50 mm unthreaded section and 120 mm case-length option provide specific mechanical dimensions for installation planning.
These dimensions are useful when checking the mounting depth, insertion position, and available clearance. Verifying them before installation can help avoid mechanical interference or an unsuitable probe position.
5.4 Compact cable arrangement
The 1.0 m cable option can be suitable for installations where the probe is located relatively close to the signal-conditioning equipment.
A shorter integral cable can simplify routing in some machine layouts. However, the total cable arrangement must remain compatible with the required measurement system.
5.5 Industrial construction
The probe family uses a stainless-steel case and a PPS tip. These materials are intended for industrial instrumentation applications within the specified environmental limits.
Actual suitability depends on temperature, moisture, chemical exposure, pressure conditions, and the mechanical installation. The materials should not be taken as proof that the probe is suitable for every harsh environment.
5.6 Integration with monitoring equipment
The probe can be integrated into a compatible machinery monitoring system to provide vibration, displacement, or position measurements.
When correctly installed, the resulting data can support trend monitoring, alarm generation, and machinery protection functions. This makes the probe useful as one component of a broader condition-monitoring arrangement.
5.7 Support for predictive maintenance
The probe can provide measurements that help maintenance teams identify changes in machine behavior before they become severe enough to cause an unplanned shutdown.
When the readings are compared with historical trends and other operating data, they can support more informed maintenance planning. The probe does not independently diagnose every fault, but it supplies valuable information for technical assessment.
5.8 Standardized connector arrangement
The miniature coaxial ClickLoc connector provides a defined interface for the compatible transducer system.
Correct connector selection helps prevent installation errors and reduces the risk of an incompatible connection. The mating cable and signal conditioner should be checked before commissioning.
5.9 Multiple configurations within the series
The 3300 XL 11 mm family includes different mechanical lengths, cable arrangements, connector options, and approval configurations.
This range allows engineers to select a suitable configuration for a particular installation. At the same time, it means that similar-looking models should not be assumed interchangeable without checking the full ordering code.
6. Brand and Product Series
| Item | Description |
|---|---|
| Brand | Bently Nevada |
| Product series | 3300 XL |
| Product family | 11 mm proximity probe |
| Model | 330709-050-120-10-02-00 |
| Product category | Industrial machinery sensor |
| Measurement principle | Eddy-current proximity sensing |
| Main function | Non-contact shaft vibration and displacement measurement |
| Thread | M16 × 1.5 |
| Unthreaded section | 50 mm |
| Case-length option | 120 mm |
| Integral cable length | 1.0 m |
| Connector | Miniature coaxial ClickLoc |
| Cable construction | Standard 75 Ω triaxial cable with FEP insulation |
| Typical system components | Probe, compatible signal conditioner, and monitoring equipment |
| Typical applications | Turbines, compressors, pumps, motors, and other compatible rotating machinery |
The 3300 XL series is intended for industrial machinery measurements where shaft movement needs to be monitored without physical contact between the sensor and the target.
The 11 mm probe family is useful in installations that require a suitable linear measurement range for shaft vibration or displacement. Its performance depends on using the probe with the correct cable and signal-conditioning components.
When selecting a replacement, verify the entire model number. The unthreaded section, case length, cable length, connector, and approval option all affect whether the new probe will suit the existing installation.
7. Five Recommended Models from the Same Series or Related Product Families
The following models are comparison candidates for replacement planning or system design. Their exact ordering codes and compatibility should be verified before purchase.
| Model | Product type | Main parameters | Typical application |
|---|---|---|---|
| 330709-050-100-10-02-00 | 3300 XL 11 mm proximity probe | 50 mm unthreaded section; 100 mm case-length option; 1.0 m cable option; connector option 02 | Alternative case length for a compatible mounting arrangement |
| 330709-050-120-50-02-00 | 3300 XL 11 mm proximity probe | 50 mm unthreaded section; 120 mm case-length option; 5.0 m cable option; connector option 02 | Similar mechanical configuration where a longer cable system is required |
| 330709-050-140-10-02-00 | 3300 XL 11 mm proximity probe | 50 mm unthreaded section; 140 mm case-length option; 1.0 m cable option; connector option 02 | Alternative case-length comparison for a compatible mounting design |
| 330709-000-120-10-02-00 | 3300 XL 11 mm proximity probe | 0 mm unthreaded section; 120 mm case-length option; 1.0 m cable option; connector option 02 | Comparison model where the mounting design requires a different unthreaded section |
| 330730-040-00-00 | Extension cable | Cable assembly for a compatible 3300 XL system; verify exact length and connector arrangement | Connecting a compatible probe to the signal-conditioning component |
Selection note: These are configuration examples for comparison, not confirmation that every complete code is available or suitable for a specific machine. Verify the full ordering code and mechanical drawing before ordering.
7.1 Comparing different case lengths
A different case-length option may help accommodate a different mounting depth or insertion position. The mounting arrangement must provide the correct clearance and allow the probe to be adjusted to the required gap.
Changing the case length can affect installation fit even when the thread and cable options remain the same.
7.2 Comparing cable options
A longer cable option may be useful where the signal-conditioning equipment is farther from the probe. However, the complete transducer system must be configured for the selected cable length.
Do not substitute a 5 m or 9 m cable arrangement for a 1 m arrangement without checking the compatible signal conditioner and system requirements.
7.3 Comparing the unthreaded section
The unthreaded section affects the probe’s physical relationship to the mounting surface. A model with a different unthreaded length may not seat or position correctly in the existing installation.
For this reason, the unthreaded section should be treated as a key replacement parameter rather than a minor model-code difference.
7.4 Considering an extension cable
An extension cable is a separate system component, not a replacement for the probe itself. It can be used where the installation requires a separate cable connection between the probe and signal conditioner.
The connector and total electrical cable configuration must be compatible with the selected system.
8. Five Related Models from the Same Brand
The following selection includes proximity probes, signal-conditioning components, and monitoring modules. They serve different roles within industrial machinery monitoring and should not all be treated as direct replacements for the main probe.
| Model | Product category | Main parameters | Typical application |
|---|---|---|---|
| 330103-00-05-10-02-00 | 3300 XL proximity probe | Configuration-specific probe; verify dimensions, thread, cable, connector, and approval details | Non-contact shaft vibration and displacement measurement |
| 330180-50-00 | Proximitor Sensor | Signal-conditioning component; compatibility depends on the probe and cable configuration | Processing the probe signal for monitoring equipment |
| 330730-040-00-00 | Extension cable | Compatible extension cable assembly; verify cable length and connector type | Connecting a probe to compatible signal-conditioning equipment |
| 3500/42M | Machinery monitoring module | Vibration and position monitoring functions depend on module version and channel configuration | Monitoring shaft vibration and position in a compatible rack |
| 3500/22M | System interface module | Interface and communication functions depend on the installed system configuration | Communication between monitoring equipment and supervisory systems |
8.1 330103-00-05-10-02-00
This model is included as a related proximity probe for comparison. Its suitability depends on its exact mechanical dimensions, cable configuration, and electrical compatibility.
Before using it as an alternative, verify the thread, mounting dimensions, connector, and required signal-conditioning system.
8.2 330180-50-00
The Proximitor Sensor performs the signal-conditioning function within a compatible proximity measurement system. It processes the probe signal so that the monitoring equipment can use it.
When replacing this component, verify the required probe family, cable length, and monitoring-system configuration. A physical connector match alone does not guarantee electrical compatibility.
8.3 330730-040-00-00
The extension cable provides an additional connection between the probe and compatible signal-conditioning equipment.
The required cable length and connector arrangement depend on the installation. The complete cable configuration must be checked before it is used in a measurement channel.
8.4 3500/42M
The 3500/42M is a machinery monitoring module used in compatible monitoring systems. Its functions depend on the module version and channel configuration.
It does not replace the proximity probe. Instead, it forms part of the monitoring system that receives and evaluates measurements from compatible transducer channels.
8.5 3500/22M
The 3500/22M is a system interface module used for communication and interface functions in a compatible monitoring arrangement.
It has a different role from the probe and signal conditioner. It is relevant when designing or maintaining a complete monitoring system, but it is not a direct replacement for the 330709 sensor.
9. Dimensions and Weight
| Dimension or weight item | Specification |
|---|---|
| Probe family | 3300 XL 11 mm |
| Nominal probe diameter class | 11 mm |
| Thread specification | M16 × 1.5 |
| Unthreaded section | 50 mm |
| Case-length option | 120 mm |
| Integral cable length | 1.0 m |
| Connector | Miniature coaxial ClickLoc |
| Cable construction | 75 Ω triaxial cable with FEP insulation |
| Overall assembled length | Confirm from the complete mechanical drawing |
| Reference product weight | Approximately 0.16 kg in one listed configuration; verify the exact supplied assembly |
| Alternative listed weight | Some listings report approximately 0.323 kg; confirm whether this includes packaging or accessories |
| Example packaging dimensions | Approximately 25 × 25 × 5 cm; packaging dimensions are not the probe’s actual mechanical dimensions |
| Minimum cable bend radius | Approximately 25.4 mm |
| Maximum thread engagement | Approximately 24 mm for the corresponding M16 × 1.5 configuration |
| Installation clearance | Must allow for mounting, gap adjustment, connector access, and cable routing |
Product weight in kilograms
For planning purposes, one listing gives a reference weight of approximately 0.16 kg, while other listings give a higher value. The discrepancy means that the exact bare-product weight cannot be guaranteed from the model number alone in this description.
For formal procurement, freight planning, and engineering records, confirm the supplied assembly’s actual weight in kilograms. Record the bare probe weight separately from the packaged shipping weight.
Mechanical dimensions
The 120 mm case-length option is a configuration dimension and should not be treated as the total installed length. The threaded section, unthreaded section, connector, and cable must be considered together.
Before installation, check the dimensional drawing against the mounting bore, available thread depth, required insertion position, and distance to the target surface. Sufficient clearance must also be available for the cable and connector.
10. Installation Recommendations
10.1 Verify the full ordering code
Check the complete model number before installation. The unthreaded section, case length, cable length, connector option, and approval designation all affect selection.
A replacement should match the installed sensor’s mechanical and electrical requirements rather than being selected solely because it belongs to the same product family.
10.2 Confirm the mounting thread and depth
Verify that the mounting point matches the M16 × 1.5 thread and has the required depth. Install the probe carefully to avoid damaging the thread or the probe body.
Use the installation procedure and specified tightening requirements for the actual configuration. Do not assume that a torque value from another mounting arrangement is appropriate.
10.3 Set the correct operating gap
The gap between the probe tip and the target affects the measurement operating point and usable range.
Set the gap according to the procedure for the compatible probe and Proximitor Sensor. Do not rely on a generic value if the system documentation specifies a different setup procedure.
10.4 Route the cable correctly
The 1.0 m cable should be routed so that it is protected from sharp edges, moving parts, excessive heat, and mechanical strain.
Maintain the specified minimum bend radius and avoid pulling on the cable to position the probe. Ensure that the connector is properly seated and protected from contamination.
10.5 Verify the complete measurement channel
After installation, check the probe, cable, signal conditioner, and monitoring channel as a complete system.
Confirm that the signal is stable and that the channel is configured for the intended measurement. For machinery protection applications, alarm settings and protection functions should be tested according to the approved commissioning procedure.
11. Maintenance and Troubleshooting
Regular inspection should include the probe mounting, cable condition, connector integrity, and stability of the measurement signal.
If a measurement changes unexpectedly, investigate the complete system before replacing the probe. Possible causes include an incorrect gap, damage to the cable, a loose connector, a problem with the signal conditioner, or a change in the target surface.
When replacing the sensor, compare the complete ordering code and mechanical drawing with the installed component. Similar-looking probes can differ in unthreaded length, case length, cable configuration, and electrical requirements.
For critical machinery, keep records of the installed model, mounting dimensions, gap setting, cable configuration, and commissioning results. These records help maintenance personnel select a compatible replacement and troubleshoot future problems.
12. Final Summary
The Bently Nevada 330709-050-120-10-02-00 is a 3300 XL 11 mm proximity probe intended for non-contact shaft vibration and relative displacement measurements in compatible industrial machinery.
Its key configuration details are the 50 mm unthreaded section, 120 mm case-length option, 1.0 m integral cable, miniature coaxial ClickLoc connector, and approval option 00. These features should be checked against the existing installation before replacement or purchase.
The main advantages are non-contact sensing, a nominal 4.0 mm linear range when used with the compatible system, and integration with machinery monitoring equipment. The probe can support vibration trending, shaft position monitoring, and condition-based maintenance when installed and configured correctly.
The reference weight is approximately 0.16 kg in one listed configuration, but the exact supplied assembly weight should be verified because published figures differ. Before ordering, confirm the complete model code, dimensional drawing, cable compatibility, and mounting requirements to ensure that the probe is suitable for the intended application.