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330880-28-00-085-03-02

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The Bently Nevada 330880-28-00-085-03-02 PROXPAC XL Proximity Transducer Assembly is a comprehensive, self-contained proximity probe system designed for advanced machinery protection.
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Technical specifications for 330880-28-00-085-03-02

  • Manufacturer:
    Bently Nevada
  • Part Number:
    330880-28-00-085-03-02
  • Product Family:
    PROXPAC XL Proximity Transducer Assembly
  • Product Type:
    PROXPAC XL Proximity Transducer
  • Probe and Approvals:
    3300 XL 8 mm probe with Multiple Approvals
  • Standoff Adapter:
    No standoff adapter
  • Probe Penetration:
    8.5 in
  • Mounting Thread:
    3/4-14 NPT
  • Supply-voltage sensitivity:
    < 2 mV output change per 1 V supply change
  • Fittings:
    One 3/4-14 NPT fitting, one 3/4-14 NPT to 1/2-14 NPT SST reducer and two plugs
  • Weight:
    1.44 kg
  • Estimated shipping dimensions:
    11.99 cm × 8.32 cm × 7.06 cm
  • 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 Communication & Connectivity Diagnostics & Protection

Features:

  • Fully Integrated 3300 XL 8 mm Proximity Probe and Proximitor Sensor in a Single Molded Housing
  • Direct Signal Transmission to Monitors Without Extension Cables or Separate Sensor Enclosures
  • Advanced PPS Thermoplastic Construction with Conductive Fibers Rated for Type 4X and IP66 Environments
The 330880-28-00-085-03-02 PROXPAC XL Proximity Transducer Assembly is specifically designed to address the challenges associated with traditional proximity probe installations that require separate extension cables and external Proximitor sensor housings. By integrating a 3300 XL 8 mm probe with Multiple Approvals and a built-in Proximitor sensor into a single self-contained enclosure, the 330880-28-00-085-03-02 eliminates wiring complexity and reduces potential failure points, delivering a streamlined solution for critical machinery vibration monitoring and position measurement applications. The 330880-28-00-085-03-02 functions as the primary proximity sensing element in machinery protection systems, providing reliable displacement measurement to all monitoring modules within the measurement chain. It continuously detects target surface position through its 8.5-inch penetration probe and converts this mechanical motion into a conditioned electrical signal, transmitting this output directly to the monitor inputs through internal integrated circuitry to support steady-state operation of all connected vibration and position monitors.

Direct signal transmission is standard with the 330880-28-00-085-03-02; however, utilizing an optional standoff adapter configuration will allow adjustable probe positioning for applications requiring variable penetration depths or extended reach into confined bearing housings. The 330880-28-00-085-03-02 has made improvements in several areas over previous 31000/32000 housing designs in addition to incorporating universal environmental protection capability within the proximity probe assembly.

For severe environment applications in power generation, oil and gas, petrochemical processing, and heavy rotating machinery industries, the machinery protection system benefits from the 330880-28-00-085-03-02 advanced PPS thermoplastic housing with integrated conductive fibers. In addition to standard single-housing environmental sealing, the conductive fiber configuration also performs automatic electrostatic charge dissipation. The 330880-28-00-085-03-02 dual-function housing executes protection using the internal material properties specified in the probe assembly options. Using this method, the conductive matrix continually monitors and neutralizes static buildup on the housing surface. If the system detects that electrostatic charge accumulation is approaching levels that could interfere with sensor performance (outside configured safety/tolerance thresholds), it will automatically dissipate the charge through the conductive PPS composite and maintain stable, reliable measurement output.

The 330880-28-00-085-03-02 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 330880-28-00-085-03-02 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 330880-28-00-085-03-02 PROXPAC XL Proximity Transducer Specs

General

  • Manufacturer Bently Nevada
  • Model 330880-28-00-085-03-02
  • Condition New Original ready stock
  • Product Family 330880-28-00-085-03-00,330880-28-00-085-03-05
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.
  • Radial Vibration: Monitors shaft dynamic movement inside journal bearings to detect imbalances, misalignments, or mechanical looseness.
  • Axial Position: Tracks continuous thrust movement of industrial rotors to prevent catastrophic rotor-to-stator contact.
  • Keyphasor Inputs: Measures once-per-turn voltage pulses from shaft notches to calculate rotational speed and phase angles.
  • Severe Environments: Deployed on turbines, compressors, large pumps, and gearboxes where external extension cables would fail.
  • Direct Field Wiring: Terminal block connections wire directly from the field housing to the machinery protection monitor over standard three-conductor shielded triax cable.
  • No Extension Cables: Housing the Proximitor inside the cover cuts out the standard 5-meter or 9-meter extension cable, minimizing signal noise and connection failures.
  • SpringLoc Terminals: Quick-connect spring terminals inside the housing eliminate specialized termination tools and reduce installation times.
  • Long-Distance Transmission: Supports transmitting the raw analog voltage signal up to 305 meters (1,000 feet) to back-end machinery monitors.
  • Machine Asset Protection: Provides continuous linear scale factors of 7.87 V/mm (200 mV/mil) directly into plant emergency shutdown systems.
  • RFI/EMI Immunity: Protects the low-voltage analog signal against high-frequency radio waves and stray industrial fields without requiring isolated conduits.
  • Advanced Material Protection: Engineered with a high-impact, anti-static PPS housing that naturally dissipates electrostatic charges.
  • Environmental Sealing: Rated IP66 and Type 4X to resist hose-directed water and chemical vapor ingress, complete with internal Viton O-ring pressure seals.
  • Hazardous Area Certification: The -28 multiple approvals modification allows it to operate safely inside explosive atmospheres via intrinsic safety or non-incendive parameters.
Description
The Bently Nevada 330880-28-00-085-03-02 PROXPAC XL Proximity Transducer Assembly is specifically designed to address the challenges associated with traditional proximity probe installations that require separate extension cables and external Proximitor sensor housings. By integrating the sensor directly into the probe housing assembly, the 330880-28-00-085-03-02 eliminates common wiring complexity and reduces potential failure points, offering a streamlined solution for critical machinery vibration monitoring and position measurement applications.

The design of the 330880-28-00-085-03-02 PROXPAC XL Proximity Transducer Assembly is similar to the established 31000/32000 Proximity Probe Housing Assemblies, maintaining the same advantages for accessing and externally adjusting proximity probes. However, the housing cover of the 330880-28-00-085-03-02 also contains its own integrated 3300 XL Proximitor sensor, making it a completely self-contained proximity probe system. This integrated architecture eliminates the need for an extension cable between the probe and its associated Proximitor sensor, and removes the requirement for a separate Proximitor housing, as field wiring connects directly between the monitors and the 330880-28-00-085-03-02 PROXPAC XL Assemblies.

Constructed from Polyphenylene Sulfide (PPS), an advanced molded thermoplastic, the 330880-28-00-085-03-02 PROXPAC XL housing replaces the steel and aluminum used in previous Bently Nevada housing designs. The material incorporates glass and conductive fibers to strengthen the housing and more effectively dissipate electrostatic charges. Rated for Type 4X and IP66 environments, the 330880-28-00-085-03-02 provides extra protection in severe environments, ensuring reliable performance under demanding operational conditions.

The 330880-28-00-085-03-02 PROXPAC XL Proximity Transducer is ideally suited for harsh industrial environments where robust vibration monitoring and shaft position sensing are required, such as in heavy rotating machinery applications exposed to moisture, dust, and corrosive conditions. Its self-contained design simplifies installation and integration by allowing direct wiring to monitoring systems without intermediate junction components, reducing both installation time and maintenance overhead. For facilities currently utilizing 31000/32000 series housing assemblies, upgrading to the 330880-28-00-085-03-02 offers enhanced environmental protection, simplified system architecture, and improved electrostatic discharge management while maintaining familiar probe access and adjustment capabilities.
Alternative Names
330880 28 00 085 03 02 330880-28-00-085-03-00 330880-28-00-085-03-05 330880-28-00-085-02-02 330880-28-00-085-01-02 330880-28-00-085-00-02
Technical notes
The innovative design of the 330880-28-00-085-03-02 PROXPAC XL Proximity Transducer is specifically engineered to handle the complexities of field installations by combining the probe housing and sensor into a single unit. It resolves the common industry challenges of signal degradation and high installation costs by embedding its own 3300 XL Proximitor sensor directly into the housing cover.
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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.
How does the 330880-28-00-085-03-02 simplify industrial field installation?
The 330880-28-00-085-03-02 is specifically engineered to reduce installation complexity and lower field wiring costs. By integrating the 3300 XL Proximitor sensor directly into the housing cover, the assembly eliminates the need for separate extension cables between the probe and sensor. It also removes the requirement for an external Proximitor housing, allowing field wiring to connect directly from machinery monitors to the PROXPAC XL assembly. This design helps minimize signal loss, reduces installation space requirements, and simplifies maintenance procedures in industrial environments.
What installation hardware and mounting features are included with the 330880-28-00-085-03-02?
The assembly includes several specialized mounting components to support secure and flexible installation. It is supplied with one 3/4-14 NPT fitting, one stainless steel 3/4-14 NPT to 1/2-14 NPT reducer, and two plugs. These fittings allow the 330880-28-00-085-03-02 to adapt easily to different machinery layouts and industrial piping configurations while maintaining reliable mechanical stability.
Which industries and machinery applications commonly use the 330880-28-00-085-03-02?
The 330880-28-00-085-03-02 is widely used in critical industries such as oil and gas, petrochemical processing, power generation, and heavy manufacturing. It is commonly installed on rotating machinery including steam turbines, gas compressors, pumps, motors, and gearboxes. In these applications, the assembly provides accurate vibration and shaft position monitoring, helping operators detect mechanical issues early and avoid costly unplanned shutdowns.
Why is the 330880-28-00-085-03-02 considered a strong upgrade option for older proximity transducer housings?
The 330880-28-00-085-03-02 offers strong compatibility with older 31000 and 32000 housing designs, allowing facilities to upgrade existing systems with minimal modification. Compared with traditional aluminum and steel housings, this PROXPAC XL assembly provides improved corrosion resistance, better electrostatic protection, and a more compact footprint. It also supports easier external probe adjustment and direct monitor rack wiring, helping facilities modernize machinery monitoring systems while reducing maintenance effort and installation costs.