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- Bently Nevada
- 330173-00-03-10-01-00
- 3300 5 mm Proximity Probe
- USA
- 1 meter
- 0.323 kg
- Xiamen, China
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Product Overview
The Bently Nevada 330173-00-03-10-01-00 is a 3300 5 mm proximity probe used for non-contact measurement of shaft vibration and relative displacement in rotating machinery. It uses eddy-current sensing to detect changes in the distance between the probe tip and a conductive target. When connected to a compatible extension cable and Proximitor sensor, it forms part of a transducer system used for continuous machinery monitoring.
The 330173 series features an M8 × 1 metric mounting thread and an unarmored cable. This configuration specifies a zero unthreaded-length option, a 30 mm overall case length, and a 1-meter integral cable. The connector option includes a miniature coaxial ClickLoc connector with a connector protector, while the final ordering-code segment specifies the agency approval option.
The M8 × 1 thread makes this probe suitable for installations with a matching metric mounting provision. The short case configuration is relevant where the available mounting depth is limited, although the actual installation must still provide sufficient clearance for the probe tip, connector, and cable routing. The mounting arrangement should be checked against the machine drawing before a replacement is ordered.
A 3300 5 mm proximity system measures the position of a conductive shaft relative to the probe mounting point. In a centrifugal compressor, for example, probes installed near bearing locations detect shaft movement as speed, load, and operating conditions change. The monitoring system processes these signals to evaluate vibration trends and relative shaft position.
The probe can also be used in compatible Keyphasor and speed-measurement arrangements when the target geometry and monitoring configuration support those functions. The sensing element itself does not determine the machine’s operating condition; the connected signal-conditioning and monitoring equipment interprets the electrical output.
The unarmored cable is appropriate where the installation provides adequate protection against abrasion, impact, and mechanical strain. The connector protector helps protect the connection during handling and installation, but it does not eliminate the need to keep the connector clean and properly secured.
The 330173-00-03-10-01-00 is part of the 3300 5 mm transducer family, not the 3300 XL 8 mm probe family. The probe, extension cable, and Proximitor sensor must be selected as a compatible system. For this 1-meter probe configuration, the total electrical length and corresponding sensor type should be confirmed before installation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 330173-00-03-10-01-00 |
| Product Series | 3300 |
| Product Type | 5 mm Proximity Probe |
| Sensing Technology | Eddy-current proximity sensing |
| Probe Tip Diameter | 5.2 mm |
| Mounting Type | Standard mount |
| Mounting Thread | M8 × 1 |
| Unthreaded Length Option | 0 mm |
| Overall Case Length | 30 mm |
| Cable Construction | Standard, unarmored |
| Total Cable Length | 1 m |
| Connector Type | Miniature coaxial ClickLoc connector |
| Connector Protector | Included |
| Agency Approval Option | 00 |
| Nominal Linear Measurement Range | 2 mm |
| Nominal Scale Factor | 7.87 V/mm (200 mV/mil) |
| Recommended Nominal Gap | Approximately 1.27 mm, subject to the applicable installation procedure |
| Cable Electrical Design | 75 Ω triaxial cable with FEP insulation |
| Measurement Type | Relative shaft vibration and displacement |
| Target Material | Electrically conductive metal |
| Reference Calibration Material | AISI 4140 steel |
| Compatible System | 3300 5 mm proximity transducer system |
| Total Length | 1 meter |
| Weight | 0.323 kg |
Product Features
- 5 mm sensing format: Supports non-contact displacement measurements in compatible 3300 5 mm transducer systems.
- M8 × 1 metric thread: Fits matching metric probe mounting provisions.
- Zero unthreaded-length option: Defines the case configuration without an additional unthreaded section.
- 30 mm case length: Establishes the specified probe-body configuration for installation planning.
- Unarmored cable: Provides the standard cable arrangement for installations with suitable mechanical protection.
- 1-meter integral cable: Supports the corresponding short-length transducer configuration.
- ClickLoc connector: Provides a locking coaxial connection for the probe circuit.
- Connector protector: Helps protect the connector during handling and installation.
- 2 mm nominal linear range: Supports shaft-displacement measurement within the system’s specified operating region.
- 7.87 V/mm nominal scale factor: Defines the expected sensitivity of the correctly configured transducer system.
- Conductive-target sensing: Detects shaft movement without physical contact.
- Multiple monitoring applications: Supports vibration, relative position, and compatible speed-related measurement arrangements.
Working Principle
The 330173-00-03-10-01-00 uses eddy-current sensing to measure the gap between its probe tip and a conductive target, usually a rotating shaft. The sensing circuit produces an electromagnetic field that interacts with the target. Changes in the gap alter the electrical response, allowing a compatible Proximitor sensor to generate an output related to displacement.
Rotating Shaft → 3300 5 mm Probe → Compatible Extension Cable → Proximitor Sensor → Monitoring Channel
When the shaft moves toward or away from the probe, the measured distance changes. The Proximitor sensor conditions the electrical response, and the monitoring channel processes the output for relative shaft vibration or position measurements.
The 3300 5 mm system has a nominal linear measurement range of 2 mm and a nominal scale factor of 7.87 V/mm (200 mV/mil). These values describe the intended response of a compatible, correctly installed transducer system. They should not be interpreted as guaranteed measurement accuracy independent of the target material, probe gap, cable arrangement, and signal-conditioning equipment.
The initial gap must be established during commissioning. A nominal gap around the middle of the linear range is commonly used, subject to the applicable installation instructions. If the probe is positioned too close to or too far from the shaft, the system may lose usable measurement range in one direction or produce readings outside the intended linear region.
The M8 × 1 mounting thread secures the probe in a matching metric holder. The zero unthreaded-length and 30 mm case options determine how the probe fits into the mounting arrangement. Before installation, the technician should verify thread engagement, mounting depth, clearance, and the ability to adjust the sensing tip to the required gap.
The 1-meter cable is part of the transducer’s electrical configuration. The compatible extension cable and Proximitor sensor must match the intended system length. The fact that a connector fits does not prove that a component from another proximity system will produce the correct electrical response.
The unarmored cable requires a route that avoids crushing, sharp bends, excessive tension, and abrasion. The ClickLoc connector and its protector should be kept clean and properly secured. If the monitoring signal becomes noisy or inconsistent, technicians should inspect the mounting, probe gap, cable, connector, extension cable, and Proximitor sensor before concluding that the shaft has developed a mechanical fault.
Role in a 3300 5 mm Machinery Monitoring System
The Bently Nevada 330173-00-03-10-01-00 supplies the local displacement signal used by a compatible 3300 5 mm monitoring arrangement. Its metric mounting interface and 1-meter cable configuration determine how it is installed and connected to the remaining transducer components.
Shaft Surface → 330173 Probe → Compatible Extension Cable → Proximitor Sensor → Monitoring Module → Operator Interface
| System Component | Function |
|---|---|
| Bently Nevada 330173-00-03-10-01-00 | Detects changes in the gap between the probe tip and shaft surface |
| Conductive Shaft Target | Provides the surface used for displacement measurement |
| M8 × 1 Mounting Hardware | Secures the probe in the matching metric mounting provision |
| Probe Case | Establishes the specified installation geometry |
| Integral Probe Cable | Carries the probe signal to the compatible extension cable |
| ClickLoc Connector and Protector | Establishes and protects the probe-side electrical connection |
| Compatible 3300 5 mm Extension Cable | Completes the connection to the Proximitor sensor |
| Compatible Proximitor Sensor | Conditions the probe signal for the matching transducer system |
| Machinery Monitoring Module | Processes the conditioned signal for vibration or position measurements |
| Monitoring Rack | Collects measurements from multiple machine locations |
| Operator Interface | Displays measured values, trends, and configured alarms |
| Plant Protection System | Uses monitoring information within the machine protection arrangement |
Industrial Applications
| Application | Typical Use |
|---|---|
| Centrifugal Compressors | Monitoring relative shaft vibration near bearing locations |
| Steam Turbines | Measuring shaft movement in compatible monitoring installations |
| Industrial Generators | Tracking shaft displacement during continuous operation |
| Industrial Pumps | Monitoring shaft movement where the mounting arrangement supports a 5 mm probe |
| Petrochemical Facilities | Maintaining proximity measurements on critical rotating machinery |
| Refinery Compressor Trains | Supplying displacement signals to machinery monitoring channels |
| Power Generation Plants | Supporting turbine-generator condition monitoring |
| Machinery Test Rigs | Collecting shaft-displacement data during controlled tests |
| Bearing Monitoring Systems | Observing changes in relative shaft movement |
| Preventive Maintenance Programs | Establishing baseline readings and monitoring changes in machine behavior |
Installation and Maintenance
- Confirm the mounting provision: Verify that the machine accepts the M8 × 1 thread and accommodates the specified case configuration.
- Inspect the target surface: Ensure that the shaft surface is conductive and suitable for eddy-current proximity measurement.
- Check the mounting depth: Confirm that the mounting arrangement provides adequate clearance for the probe body, connector, and cable.
- Position the probe: Align the sensing tip with the intended measurement point and ensure that surrounding structures do not interfere with installation.
- Set the initial gap: Establish the probe gap according to the applicable 3300 5 mm installation procedure and the monitoring system requirements.
- Secure the probe: Tighten the mounting arrangement according to the specified procedure while maintaining appropriate thread engagement.
- Inspect the unarmored cable: Check the cable jacket for cuts, crushing, abrasion, and other signs of mechanical damage.
- Route the cable correctly: Avoid sharp bends, excessive tension, moving parts, and unnecessary exposure to electrical interference.
- Secure the ClickLoc connector: Confirm that the connector is fully engaged and that the protector is correctly positioned.
- Match the transducer components: Verify that the extension cable and Proximitor sensor are compatible with the 3300 5 mm system and the required total electrical length.
- Verify the measurement response: Check that the signal corresponds to the established gap and that the monitoring channel reports plausible measurements.
- Document commissioning results: Record the probe reference, mounting arrangement, initial gap, connected transducer components, and baseline measurements.
Related Components
| Component | Function |
|---|---|
| Bently Nevada 330173-00-03-10-01-00 | Measures shaft displacement using the 3300 5 mm sensing system |
| Compatible 3300 5 mm Extension Cable | Connects the probe to the corresponding Proximitor sensor |
| Compatible 3300 5 mm Proximitor Sensor | Conditions the probe signal for monitoring |
| M8 × 1 Probe Mounting Hardware | Secures the probe at the designated measurement location |
| Conductive Shaft Target | Provides the surface measured by the proximity probe |
| ClickLoc Connector Protector | Helps protect the probe connector during handling and installation |
| Shielded Cable Routing Accessories | Support organized cable routing and mechanical protection |
| Machinery Monitoring Module | Processes the conditioned signal for vibration or position measurements |
| Monitoring Rack | Collects signals from multiple machinery measurement points |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Bently Nevada 330171 Series | 3300 5 mm Proximity Probe, 1/4-28 UNF Thread, Unarmored | Inch-threaded mounting arrangements without cable armor |
| Bently Nevada 330172 Series | 3300 5 mm Proximity Probe, 1/4-28 UNF Thread, Armored | Inch-threaded installations requiring cable armor |
| Bently Nevada 330173 Series | 3300 5 mm Proximity Probe, M8 × 1 Thread, Unarmored | Metric installations where cable armor is not required |
| Bently Nevada 330174 Series | 3300 5 mm Proximity Probe, M8 × 1 Thread, Armored | Metric installations requiring additional cable protection |
| Bently Nevada 3300 5 mm Extension Cable | Proximity Transducer Extension Cable | Completing a compatible 5-meter or 9-meter transducer system where required |
| Bently Nevada 3300 5 mm Proximitor Sensor | Proximity Signal Conditioner | Conditioning probe signals for machinery monitoring |
| Bently Nevada 3300 Monitoring Modules | Vibration and Position Monitoring Equipment | Processing transducer signals for condition monitoring and protection |
Key Advantages
- Measures shaft displacement without contacting the rotating target.
- Uses a 5 mm sensing format for compatible machinery installations.
- Provides an M8 × 1 metric mounting thread.
- Uses a 1-meter unarmored cable with a protected ClickLoc connector.
- Supports a nominal 2 mm linear measurement range.
- Integrates with compatible 3300 5 mm transducer and monitoring equipment.
Technical FAQs
What mounting details should be checked before replacing this probe?
Confirm the M8 × 1 thread, zero unthreaded-length option, 30 mm case configuration, and available mounting depth. These details determine whether the probe can be secured and adjusted to the required shaft gap.
Does the connector option include protection for the connection?
Yes. The 01 connector option specifies a miniature coaxial ClickLoc connector with a connector protector and standard cable. The protector should be inspected for damage and positioned correctly during installation.
Can this 1-meter probe be used with a 3300 XL 8 mm Proximitor sensor?
The probe belongs to the 3300 5 mm system, which has its own corresponding transducer configuration. Do not substitute an 8 mm Proximitor sensor solely because the connectors appear compatible; verify the complete probe, cable, and sensor combination.
What installation conditions can affect the measurement signal?
Incorrect probe gap, loose mounting hardware, damaged cable insulation, contaminated connectors, and an incompatible extension cable or Proximitor sensor can affect signal quality. Checking these factors helps distinguish an electrical measurement problem from actual shaft movement.