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330800-28-00-085-03-02

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The Bently Nevada 330800-28-00-085-03-02 PROXPAC XL proximity sensor system provides a complete, factory-calibrated proximity measurement solution.
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Technical specifications for 330800-28-00-085-03-02

  • Manufacturer:
    Bently Nevada
  • Part Number:
    330800-28-00-085-03-02
  • Product Family:
    PROXPAC XL Proximity Transducer Assembly
  • Probe and Approvals Option:
    3300 XL 8 mm probe with Multiple Approvals
  • Standoff Adapter:
    No standoff adapter Probe Penetration 8.5 in.
  • Fittings:
    One 3/4-14 NPT fitting, one 3/4-14 NPT to 1/2-14 NPT SST reducer and two plugs
  • Mounting Thread:
    3/4-14 NPT
  • Output resistance:
    50 Ω
  • Recommended Gap Setting:
    1.27 mm (50 mils)
  • Shaft Diameter Minimum:
    50.8 mm (2.0 in)
  • Weight:
    0.34 kg
  • Estimated shipping dimensions:
    2.8x2.8x115cm
  • 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 Use Cases Configuration & Programming Operating Environment

Features:

  • Interface Between the Industrial Process Environment and 3500 Monitoring System
  • Combines Capability of Proximity Sensing with Hazardous Area Multiple Approvals
  • Operates in Conjunction with the 3500/45 and Standard 3500 Monitors
The 330800-28-00-085-03-02 operates as the PROXPAC XL Proximity Transducer in a 3500 rack, providing reliable displacement measurement signals to all monitors within the system. It continuously converts target proximity into proportional electrical signals through the 3300 XL 8 mm probe and transmits this data through the rack backplane to support steady state operation of all vibration and position monitors. Seamless measurement integration is standard with the 330800-28-00-085-03-02, however using an optional Redundant Sensor Configuration will allow seamless switchover to a backup transducer in the event of a primary probe failure. The 330800-28-00-085-03-02 has made improvements in several areas over previous transducer designs in addition to incorporating universal hazardous area approvals within the 3500 rack.

The 330800-28-00-085-03-02 provides essential measurement functions common to the entire rack, and is a critical component of the protection path, directly affecting the proper, normal operation of the overall monitor system. One or two 330800-28-00-085-03-02 transducers are required per measurement point depending on the desired redundancy level. The 330800-28-00-085-03-02 occupies only a single probe installation location in the machine housing and is always positioned at the designated measurement point (the dedicated transducer mounting position).

For Dual Redundant Measurement applications, the 3500 System requires a second 330800-28-00-085-03-02 transducer assembly installed in the redundant location. In addition to standard single transducer operation, the redundant configuration also performs automatic switchover. The 3500 dual transducer configuration executes failover using the internal circuitry specified in the monitor options. Using this method, the redundant measurement system continually monitors the health of both transducers. If the system detects that the primary 330800-28-00-085-03-02 is no longer providing stable output (outside configured gap voltage/tolerance levels), it will automatically transfer the measurement to the secondary transducer and place an event in the System Event List.

The 330800-28-00-085-03-02 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 330800-28-00-085-03-02 PROXPAC XL Proximity Transducer Manuals,Datasheets,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 330800-28-00-085-03-02 PROXPAC XL Proximity Transducer Specs

General

  • Manufacturer Bently Nevada
  • Model 330800-28-00-085-03-02
  • Condition New Original ready stock
  • Product Family 330800-28-00-085-03-00,330800-28-00-085-03-05
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.
  • Machinery Protection & Monitoring: Accurately measures shaft displacement and vibration in high-performance rotating machinery.
  • Critical Asset Management: Primarily used for monitoring turbines, compressors, and pumps to ensure predictive maintenance and reliability.
  • Severe Environments: Ideal for applications where external sensor mounting is difficult or where cables require extra protection from harsh conditions.
  • Specific Measurements: Suitable for radial vibration, axial position (thrust), and Keyphasor (speed) measurements.
  • Gap Adjustment: Standard setup requires a gap voltage typically between -9 V and -11 V DC when properly centered in its linear range.
  • Wiring: Uses a 3-conductor shielded triad cable for field wiring directly between the assembly and the monitor.
  • Temperature Range: Probe: -51 °C to +177 °C (-60 °F to +350 °F). Housing/Sensor: -51 °C to +100 °C (-60 °F to +212 °F).
  • Ingress Protection: Rated Type 4X and IP66, providing high resistance to dust, water, and corrosion.
  • Humidity: 100% condensing, non-submersible, provided connectors are protected.
  • Material: Housing is made of Polyphenylene Sulfide (PPS), an advanced thermoplastic reinforced with glass and conductive fibers to strengthen the unit and dissipate electrostatic charges.
  • Power: Operates on -17.5 Vdc to -26 Vdc (without barriers) or -23 Vdc to -26 Vdc (with barriers).
Description
The Bently Nevada 330800-28-00-085-03-02 is a PROXPAC XL Proximity Transducer system specifically engineered for critical rotating machinery protection and condition monitoring applications in hazardous industrial environments. The 330800-28-00-085-03-02 integrates the field-proven 3300 XL 8 mm proximity probe technology with comprehensive multiple agency approvals, enabling safe deployment in oil and gas processing facilities, petrochemical plants, and power generation stations where explosive atmospheres may be present. This 330800-28-00-085-03-02 transducer assembly eliminates the complexity of separate component procurement by providing a complete, factory-calibrated proximity measurement solution in a single part number.

The 330800-28-00-085-03-02 features a probe penetration depth of 8.5 inches, making it particularly suitable for large turbine casings, compressor housings, and pump bearing housings where extended reach is required to access measurement surfaces. The 330800-28-00-085-03-02 is configured without a standoff adapter, streamlining installation in space-constrained areas while maintaining measurement accuracy. This design characteristic of the 330800-28-00-085-03-02 addresses common installation challenges in retrofit applications where existing probe mounting configurations must be preserved without modification.

For installation flexibility, the 330800-28-00-085-03-02 includes one 3/4-14 NPT fitting, one 3/4-14 NPT to 1/2-14 NPT stainless steel reducer, and two sealing plugs. The 330800-28-00-085-03-02 utilizes a 3/4-14 NPT mounting thread as its primary connection interface, ensuring compatibility with standard industrial conduit systems and existing machinery ports. This comprehensive fitting package included with the 330800-28-00-085-03-02 eliminates the need for additional procurement of installation hardware, reducing project lead times and ensuring proper material specifications for corrosive environments.

The 330800-28-00-085-03-02 is specifically designed to solve the critical challenge of reliable shaft vibration, thrust position, and speed measurement in large rotating equipment such as gas turbines, steam turbines, centrifugal compressors, and critical pump systems. The 330800-28-00-085-03-02 addresses the persistent problem of measurement system incompatibility in hazardous area classifications by consolidating all required safety certifications into a single transducer assembly. By integrating the 3300 XL 8 mm probe with pre-configured hazardous area approvals, the 330800-28-00-085-03-02 eliminates the engineering burden of verifying component-level compliance and ensures consistent measurement performance across global installations. The 330800-28-00-085-03-02 provides maintenance teams with a direct replacement solution that preserves existing monitoring system calibrations while upgrading to current safety standards, thereby minimizing downtime during equipment overhaul cycles.
Alternative Names
330800 28 00 085 03 02 330800-28-00-085-03-00 330800-28-00-085-03-05 330800-28-00-085-02-02 330800-28-00-085-01-02
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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 is the Bently Nevada 330800-28-00-085-03-02?
The Bently Nevada 330800-28-00-085-03-02 is a PROXPAC XL Proximity Transducer system designed for critical rotating machinery protection and condition monitoring, especially in hazardous industrial environments.
What technology is integrated into the 330800-28-00-085-03-02?
It integrates the proven 3300 XL 8 mm proximity probe technology with multiple agency approvals for safe use in explosive or hazardous areas.
What is the key advantage of the 330800-28-00-085-03-02 system design?
It provides a complete, factory-calibrated proximity measurement solution in a single part number, eliminating the need to procure separate components.

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