• Bently Nevada 330171-00-30-10-02-BR 3300 5 mm Proximity Probe
  • Bently Nevada 330171-00-30-10-02-BR 3300 5 mm Proximity Probe
  • Bently Nevada 330171-00-30-10-02-BR 3300 5 mm Proximity Probe
  • Bently Nevada 330171-00-30-10-02-BR 3300 5 mm Proximity Probe
Product Overview The Bently Nevada 330171-00-30-10-02-BR is a 3300 5 mm Proximity Probe used as the sensing element in a proximity measurement system for rotating machinery. It works with the associated……
Bently Nevada 330171-00-30-10-02-BR 3300 5 mm Proximity Probe
  • Bently Nevada
  • 330171-00-30-10-02-BR
  • 3300 5 mm Proximity Probe
  • USA
  • 1 meter
  • 0.323 kg
  • 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

Bently Nevada 330171-00-30-10-02-BR 3300 5 mm Proximity Probe

Global Logistics

We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.

Bently Nevada 330171-00-30-10-02-BR 3300 5 mm Proximity Probe

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.

Bently Nevada 330171-00-30-10-02-BR 3300 5 mm Proximity Probe

24-hour service

We provide 7*24 hours service to our customers. We will be there whenever you need us.

Bently Nevada 330171-00-30-10-02-BR 3300 5 mm Proximity Probe

Price advantage

All our products are priced very favorably because we have our own warehouse and supply.


Company Information
E-mail [email protected]
Mobile +8615980777398
Whatsapp +8615980777398
WeChat 15980777398

Product Overview

The Bently Nevada 330171-00-30-10-02-BR is a 3300 5 mm Proximity Probe used as the sensing element in a proximity measurement system for rotating machinery. It works with the associated proximity transducer system to detect shaft position and vibration without physical contact between the probe tip and the rotating shaft.

This type of probe is commonly installed on equipment such as steam turbines, gas turbines, compressors, pumps, motors, and other rotating machinery where shaft movement needs to be monitored continuously. A typical installation places the probe close to a prepared shaft surface. As the shaft moves relative to the probe, the electrical characteristics of the proximity system change, allowing the connected monitoring system to determine the shaft’s relative position or movement.

The 330171-00-30-10-02-BR belongs to the Bently Nevada 3300 XL 5 mm proximity probe family. Its 1-meter total length makes it suitable for installations where the sensing location and the associated extension/proximity electronics require a relatively short probe connection.

In a compressor monitoring application, for example, probes can be positioned near the shaft to monitor radial vibration or shaft position. Similar arrangements are used around turbine bearings to detect changes in rotor movement that may indicate developing mechanical conditions.

The probe is only one part of the complete measurement chain. The installation normally also involves a compatible proximity sensor system, extension cable, Proximitor Sensor, and monitoring system. Proper probe gap, target material, mounting, and cable routing all affect the final measurement.

For replacement work, the complete 330171-00-30-10-02-BR reference should be checked against the existing probe, including its thread arrangement, probe length, connector configuration, and compatibility with the installed 3300 monitoring system.


Technical Specifications

Parameter Specification
Manufacturer Bently Nevada
Model 330171-00-30-10-02-BR
Product Family 3300 XL 5 mm
Product Type 3300 5 mm Proximity Probe
Probe Diameter 5 mm
Measurement Type Non-contact proximity measurement
Application Rotating machinery shaft vibration and position monitoring
Sensing Principle Eddy-current proximity measurement
Probe Construction Shielded probe
Probe Connection Compatible with the associated 3300 proximity measurement system
Total Length 1 meter
Weight 0.323 kg

Product Features

  • Bently Nevada 3300 XL 5 mm proximity probe
  • Model 330171-00-30-10-02-BR
  • 5 mm probe diameter
  • Non-contact measurement of rotating shaft movement
  • Suitable for shaft vibration and position monitoring
  • Eddy-current sensing principle
  • Intended for use with compatible Bently Nevada proximity electronics
  • Suitable for turbine, compressor, pump, and motor monitoring
  • Compact probe construction for machinery measurement locations
  • Supports continuous condition monitoring applications
  • Used as part of a complete proximity transducer system

Working Principle

The 330171-00-30-10-02-BR operates as the sensing element of an eddy-current proximity measurement system.

Rotating Shaft → 330171 Probe → Proximitor Sensor → Monitoring System

The probe tip is positioned close to the conductive surface of the machine shaft without making physical contact. The associated proximity electronics generate a high-frequency electrical field at the probe tip. When the shaft moves closer to or farther away from the probe, the electrical response of the sensing circuit changes.

The Proximitor Sensor converts this change into an electrical output that represents the relative position of the shaft. A monitoring system can then use the signal to observe shaft vibration, radial movement, or shaft position depending on the measurement arrangement.

For example, two probes may be installed around a compressor shaft at approximately perpendicular orientations. Their signals can be processed together to observe radial shaft movement and identify changes in the rotor’s operating condition.

Probe installation is critical. The gap between the probe tip and shaft target must be set within the applicable operating range, and the shaft target surface needs to be suitable for eddy-current measurement. A damaged probe tip, incorrect gap, poor mounting, or unsuitable target surface can affect the measured signal even when the monitoring electronics are functioning normally.


Role in a Bently Nevada 3300 Machinery Monitoring Architecture

The 330171-00-30-10-02-BR occupies the sensing position at the beginning of the proximity measurement chain.

Machine Shaft → 330171 Proximity Probe → Proximitor Sensor → Monitoring System → Machinery Protection / DCS

System Element Function
330171-00-30-10-02-BR Detects non-contact shaft movement
Proximitor Sensor Supplies the probe system and converts the probe response into an output signal
Extension Cable Connects the probe to the associated proximity electronics where required
Shaft Target Provides the conductive machine surface detected by the probe
3300 Monitoring System Processes and monitors the proximity measurement
Machinery Protection System Uses vibration or position information for protective functions
DCS / PLC Receives relevant monitoring information for plant supervision
Rotating Machine Provides the shaft movement being measured

The actual arrangement depends on whether the probe is being used for radial vibration, axial position, phase reference, or another proximity measurement.


Industrial Applications

Application Typical Use
Steam Turbines Monitoring rotor vibration and shaft movement
Gas Turbines Measuring shaft movement around critical rotating assemblies
Centrifugal Compressors Monitoring radial shaft vibration and position
Reciprocating Machinery Monitoring applicable shaft or rotating-component movement
Pumps Detecting changes in shaft movement and vibration
Motors Monitoring rotor movement in critical machinery
Gearboxes Monitoring selected rotating shafts
Industrial Fans Condition monitoring of critical rotating assemblies
Power Generation Equipment Continuous machinery protection and condition monitoring
Process Machinery Monitoring rotating equipment connected to plant processes

Installation and Maintenance

  1. Confirm the complete 330171-00-30-10-02-BR reference before replacing an installed probe.
  2. Verify that the replacement probe is compatible with the existing Bently Nevada proximity monitoring system.
  3. Check the probe mounting location and confirm that the mechanical mounting arrangement matches the replacement probe.
  4. Inspect the shaft target surface for damage, contamination, corrosion, or machining conditions that could affect proximity measurements.
  5. Set the probe gap according to the applicable Bently Nevada installation requirements and the connected proximity electronics.
  6. Route the probe cable away from sources of mechanical damage, excessive heat, and unnecessary electromagnetic interference.
  7. Check connectors and cable terminations for contamination, damage, or loose connections.
  8. Confirm that the probe is firmly secured and cannot move relative to the bearing housing or machine structure.
  9. Verify the electrical output of the complete probe and Proximitor system before placing the machinery into normal operation.
  10. Compare the measured signal with the expected shaft position or vibration behavior during commissioning.
  11. If a channel shows an abnormal output, check the probe gap, target surface, cable, connector, Proximitor Sensor, and monitoring channel before replacing the probe.
  12. Record the probe location, machine position, channel assignment, and installation gap after maintenance for future condition-monitoring work.

When troubleshooting a proximity channel, checking the probe gap and target surface early in the process can prevent unnecessary replacement of a functioning probe or Proximitor Sensor.


Related Components

Component Function
Bently Nevada Proximitor Sensor Provides the probe interface and processes the proximity signal
3300 XL Extension Cable Connects the probe to the associated Proximitor Sensor where required
Bently Nevada 3300 Monitoring System Monitors the resulting vibration or shaft-position signal
Probe Mounting Hardware Secures the proximity probe at the required measurement position
Rotating Shaft Provides the conductive target for the proximity measurement
Machinery Protection System Uses the measurement for alarm and protection functions
DCS / PLC Interface Provides plant-level monitoring information
Bearing Housing Provides the mechanical location for the probe installation

Recommended Related Models

Model / Product Family Product Type Typical Application
Bently Nevada 330171 Series 3300 XL 5 mm Proximity Probe General shaft vibration and position measurement
Bently Nevada 330101 Series 3300 XL 8 mm Proximity Probe Proximity measurement requiring an 8 mm probe
Bently Nevada 3300 XL Proximitor Sensor Proximity Signal Conditioner Interface between probe and monitoring system
Bently Nevada 3300 XL Extension Cable Extension Cable Connecting compatible proximity probes to Proximitor Sensors
Bently Nevada 3300 System Machinery Monitoring System Continuous vibration and machinery protection applications
Bently Nevada 3300 XL 5 mm Proximity Measurement Family Compact proximity measurement on rotating machinery

Key Advantages

  • 5 mm proximity probe for rotating machinery monitoring.
  • Non-contact measurement of shaft movement.
  • Eddy-current sensing principle.
  • Suitable for vibration and shaft-position measurement.
  • Compatible with the appropriate Bently Nevada proximity measurement chain.
  • Suitable for turbines, compressors, pumps, motors, and other rotating equipment.
  • Can support continuous machinery condition monitoring.
  • 1-meter total probe length for applicable installation layouts.

Technical FAQs

What does the 5 mm designation mean on the 330171 probe?

The 5 mm designation refers to the nominal probe diameter and identifies the probe within the Bently Nevada 3300 XL 5 mm proximity probe family. It is not the measurement range or the recommended probe gap.

Can the 330171-00-30-10-02-BR be connected directly to a PLC input?

Normally, the probe is part of a complete proximity measurement chain and works with compatible Bently Nevada proximity electronics. The Proximitor Sensor provides the appropriate interface and output signal before the measurement is sent to a monitoring or control system.

Why is probe gap important for the 330171?

The proximity system determines shaft position from the electrical response between the probe tip and the conductive shaft target. An incorrect gap can shift the operating point or produce an abnormal signal, so the installation gap needs to be set correctly during commissioning.

What should be checked before replacing this proximity probe?

Check the complete model reference, probe diameter and length, mounting arrangement, connector configuration, extension cable, Proximitor Sensor, and monitoring channel. The shaft target condition and installed probe gap should also be checked because an apparent probe fault can sometimes originate from the mechanical installation rather than the probe itself.



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