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330881-28-04-85-03-02

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The Bently Nevada 330881-28-04-85-03-02 is a factory-configured PROXPAC XL proximity transducer system designed for accurate, non-contact measurement of shaft displacement and vibration in critical rotating machinery.
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Technical specifications for 330881-28-04-85-03-02

  • Manufacturer:
    Bently Nevada
  • Part Number:
    330881-28-04-85-03-02
  • 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 330881-28-04-85-03-02 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 330881-28-04-85-03-02 operates as a fully integrated PROXPAC XL proximity transducer assembly, providing accurate shaft displacement and vibration measurement for critical rotating machinery. It continuously converts mechanical shaft motion into proportional electrical signals through its 8 mm probe and internal Proximitor sensor, delivering high-resolution output to connected 3300 XL or 3500 Series monitoring systems.

The 3500/15 provides essential power functions common to the entire rack, and is a critical component of the monitoring path, directly affecting the proper, normal operation of the overall monitor system. One or two 3500/15 power supplies are required per rack depending on the desired redundancy level. The 3500/15 occupies only a single half-height slot in the rack and is always located in Slot 0 (far left position, the dedicated power supply slots).

For critical machinery monitoring applications, the Bently Nevada 330881-28-04-85-03-02 can be deployed in dual-redundant configurations with multiple PROXPAC XL assemblies installed at key measurement points. In addition to standard single-probe operation, the redundant configuration ensures continuous monitoring even if one assembly or probe fails.

The 330881-28-04-85-03-02 Bently Nevada PROXPAC XL proximity transducer Supply may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
 
Bently Nevada 330881-28-04-85-03-02 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 330881-28-04-85-03-02 PROXPAC XL 8 mm Proximity Transducer Assembly Specs

General

  • Manufacturer GE / Bently Nevada
  • Model 330881-28-04-85-03-02
  • Condition New Original ready stock
  • Product Family 330881-28-04-085-06-02,330881-28-04-070-03-02,330881-28-04-080-03-02
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 integrates a 3300 XL 8 mm proximity probe, an internal Proximitor® sensor, and pre-terminated cabling into a single, compact unit. The factory assembly eliminates the need for separate extension cables and housings, reducing installation complexity and potential wiring errors in the field.

With an 85 mm probe penetration length, this configuration is suitable for applications requiring moderate reach into bearing housings or machinery casings. The 8 mm probe provides high-resolution eddy current sensing, converting mechanical shaft movement into proportional electrical signals that interface directly with 3300 XL and 3500 Series monitoring systems. This ensures reliable, real-time vibration and displacement monitoring.

The PROXPAC XL assembly is built from industrial-grade materials to withstand harsh operating environments, including mechanical vibration, temperature fluctuations, and exposure to dust or moisture. Its robust, sealed design supports long-term reliability in demanding applications within power generation, oil and gas, and other process industries.

By combining sensing and signal conditioning in a single unit, the 330881-28-04-85-03-02 simplifies installation, improves measurement stability, and enhances overall monitoring system reliability. It plays a critical role in machine protection by detecting imbalance, misalignment, bearing wear, and other mechanical issues early, helping to prevent unplanned downtime and costly equipment failures.
Alternative Names
330881-28-04-085-06-02 330881-28-04-070-03-02 330881-28-04-080-03-02
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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 330881-28-04-85-03-02 provide?
The 330881-28-04-85-03-02 measures shaft displacement and vibration using an 8 mm proximity probe with high-resolution eddy current sensing.
What is the probe length and application for this assembly?
This model features an 85 mm probe penetration length, suitable for moderate-reach applications into bearing housings or machine casings.
Which monitoring systems is the 330881-28-04-85-03-02 compatible with?
It is fully compatible with Bently Nevada 3300 XL and 3500 Series monitoring systems, providing reliable, real-time condition monitoring for critical rotating equipment.