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330881-BR-04-70-03-02

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The Bently Nevada 330881-BR-04-70-03-02 is a factory-configured PROXPAC XL proximity transducer system designed for precise, non-contact measurement of shaft displacement and vibration in critical rotating machinery.
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Technical specifications for 330881-BR-04-70-03-02

  • Manufacturer:
    Bently Nevada
  • Part Number:
    330881-BR-04-70-03-02
  • Product Family:
    PROXPAC XL Proximity Transducer Assembly
  • RetainingNut:
    29.5 N·m (260 in·lb)
  • Operating Temperature:
    -52°C to +100°C(-62°F to +212°F)
  • ProxpacStorageTemperature:
    -52°C to +105°C(-62°F to +221°F)
  • RecommendedGap Setting:
    1.27 mm (50 mils)
  • Outputresistance:
    50 Ω
  • Minimum TargetSize:
    15.2 mm (0.6 in) diameter(flat target)
  • ProximitorSensor Input:
    3300 XL 8 mm Proximity Probewith a 1-metre cable lengthinstalled in the probe sleeve
  • Weight:
    1.5 kg
  • Estimated shipping dimensions:
    37x9x8cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications
 

Features:

  • Interface Between the 330881-BR-04-70-03-02 PROXPAC XL Assembly and 3300 XL / 3500 Monitoring Systems
  • Combines Capability of 8 mm Proximity Sensing with Integrated Signal Conditioning
  • Operates in Conjunction with Standard 3300 XL and 3500 Series Monitors for Shaft Displacement and Vibration Measurement
The Bently Nevada 330881-BR-04-70-03-02 functions as a fully integrated PROXPAC XL proximity transducer assembly, providing accurate, non-contact shaft displacement and vibration measurement for critical rotating machinery. It continuously converts mechanical shaft motion into high-resolution electrical signals via its 8 mm probe and internal Proximitor sensor, delivering precise output to connected 3300 XL or 3500 Series monitoring systems.

The Bently Nevada 330881-BR-04-70-03-02 provides essential shaft displacement and vibration measurement functions for the entire monitoring system, and is a critical component of the machine protection path, directly affecting the accurate operation of the overall monitoring system. One or more 330881-BR-04-70-03-02 assemblies are installed per machine depending on the number of measurement points and desired redundancy. The assembly is compact, factory-configured, and designed for easy integration into 3300 XL or 3500 Series monitoring systems, ensuring consistent, reliable performance.

For critical machinery monitoring applications, the Bently Nevada 330881-BR-04-70-03-02 can be installed in dual-redundant configurations to ensure continuous shaft displacement and vibration measurement. In addition to standard single-probe operation, the redundant configuration allows automatic switchover if the primary assembly fails or its output falls outside specified signal tolerances.

The 330881-BR-04-70-03-02 Bently Nevada PROXPAC XL proximity transducer may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
 
Bently Nevada 330881-BR-04-70-03-02 PROXPAC XL Proximity Transducer Assembly Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
 Bently Nevada 330881-BR-04-70-03-02 PROXPAC XL 8 mm Proximity Transducer Assembly Specs

General

  • Manufacturer GE / Bently Nevada
  • Model 330881-BR-04-70-03-02
  • Condition New Original ready stock
  • Product Family 330881-BR-04-70-06-02,330881-BR-04-85-03-02 ,330881-BR-04-110-06-02
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Description
This assembly combines a 3300 XL 8 mm proximity probe, an internal Proximitor® sensor, and factory-terminated cabling into a single unit, simplifying installation and reducing potential wiring errors. The fully integrated design ensures reliable signal transmission to 3300 XL and 3500 Series monitoring systems, providing high-fidelity vibration and displacement data for machinery protection and condition monitoring.

With a 70 mm probe penetration length, the 330881-BR-04-70-03-02 is ideal for applications where deeper reach is required, such as within bearing housings, machine casings, or other constrained areas. The 8 mm probe utilizes high-resolution eddy current sensing technology to accurately convert mechanical shaft motion into proportional electrical signals, allowing for precise measurement even in demanding environments.

The PROXPAC XL assembly is engineered for durability, constructed from industrial-grade materials that withstand harsh operating conditions, including mechanical vibration, temperature extremes, and exposure to dust, moisture, or other contaminants. The sealed design ensures long-term, reliable operation in industries such as power generation, petrochemical, and heavy industrial machinery.

By integrating both sensing and signal conditioning into one compact assembly, the 330881-BR-04-70-03-02 simplifies the installation process, reduces the complexity of field wiring, and enhances overall system reliability. This proximity transducer assembly helps detect early signs of imbalance, misalignment, bearing wear, and other mechanical issues, enabling proactive maintenance and reducing downtime in high-value rotating assets.
Alternative Names
330881-BR-04-70-06-02 330881-BR-04-85-03-02 330881-BR-04-110-06-02
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What type of measurements does the 330881-BR-04-70-03-02 provide?
The 330881-BR-04-70-03-02 provides high-resolution, non-contact measurement of shaft displacement and vibration using an 8 mm proximity probe and integrated Proximitor sensor.
What is the probe penetration length and typical application for this assembly?
This assembly features a 70 mm probe penetration length, making it suitable for installation in bearing housings or other constrained machinery areas.
Which monitoring systems is the 330881-BR-04-70-03-02 compatible with?
It is fully compatible with Bently Nevada 3300 XL and 3500 Series monitoring systems, delivering reliable condition monitoring and machinery protection.