Bently Nevada

Bently Nevada 330880-28-30-37-01-02 PROXPAC XL Proximity Transducer Assembly

SKU 330880-28-30-37-01-02

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Bently Nevada

  • Product No.: 330880-28-30-37-01-02

  • Country of origin:United States

  • Product Type: Proximity Transducer Assemblies

  • Payment: T/T, Western Union

  • Weight: 320g

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

Designed for direct mounting on heavy rotating machinery cases, the Bently Nevada 330880-28-30-37-01-02 integrated PROXPAC XL assembly houses a high-precision proximity probe within a rugged, weather-resistant enclosure. This specific hardware configuration integrates a 3300 XL 8 mm proximity probe designed with multiple hazardous area approvals to provide continuous, non-contact shaft vibration, position, and speed measurements in demanding industrial settings. By combining the probe, standoff adapter, and conduit connection into a single modular unit, this assembly simplifies field deployment and protects sensitive sensor connections from environmental degradation.

Features

  • Integrated 3300 XL 8 mm Probe: Delivers high-accuracy, high-frequency physical displacement monitoring of rotating elements.
  • Ruggedized Enclosure: Protects terminal connections and coaxial cabling from moisture, dust, and corrosive atmospheric contaminants.
  • Pre-Engineered Standoff Assembly: Standardized structural components optimize mechanical stability and minimize physical footprint.
  • Multiple Hazardous Area Approvals: Configured to comply with rigorous safety protocols for operation in volatile process areas.

Applications

  • Steam, gas, and hydro turbine shaft radial vibration and axial position monitoring.
  • Critical industrial compressor and turbo-expander thrust bearing clearance safety loops.
  • High-speed process pump casing displacement and shaft speed sensing.
  • Harsh outdoor process environments demanding mechanical shielding for transducer cabling.

Technical Specifications Table

Parameter / Feature Specification Value
Manufacturer Bently Nevada
Model Code 330880-28-30-37-01-02
Product Series PROXPAC XL
Probe & Approvals Option 3300 XL 8 mm probe with multiple approvals (Option 28)
Standoff Adapter Option (B Dimension) 3.0 inches (76 mm) (Option 30)
Probe Penetration Option (C Dimension) 3.7 inches (94 mm) (Option 37)
Fittings Option One 3/4-14 NPT fitting, two plugs (Option 01)
Mounting Thread Option 3/4-14 NPT (Option 02)
Net Weight 1.44 kg (3.17 lbs)
Shipping Weight (Calculated) 3.00 kg (6.61 lbs)
Country of Origin United States (USA)

Empirical Engineering Insights

Alternative Models & Compatibility

The PROXPAC XL series combines the probe and physical protective junction box into a single mechanical structure. This model is engineered to interface directly with matching 3300 XL Proximitor Sensors. Ensure that the total system electrical length (typically 5.0 meters or 9.0 meters) is matched across the probe, extension cable, and Proximitor to maintain calibration integrity (normally 200 mV/mil or 7.87 V/mm).

Application Pitfalls & Engineering Notes

Incorrect selection of the B (standoff) and C (penetration) dimensions can result in the probe tip physically impacting the target shaft or being recessed too far inside the machine casing to achieve an active linear range. Engineers must calculate the total casing wall thickness, including gasket tolerances, and verify that the 3.7-inch probe penetration depth aligns correctly with the target's mechanical travel envelope under all thermal operating conditions.

Commissioning & Wiring Tips

When routing coaxial lines through the 3/4-14 NPT conduit fitting, do not exceed the minimum bend radius of the miniature coaxial cable. Avoid using harsh mechanical tools to tighten the internal gold-plated ClickLoc connectors, as over-tightening can deform the physical contact pins and lead to signal attenuation or intermittent calibration faults.

Installation Guidelines

CRITICAL WARNING: De-energize and lock out the target machinery before installing or adjusting the proximity transducer assembly. Verify that the ambient atmosphere is classified as non-hazardous before opening the housing cover or adjusting the mechanical standoff settings while machinery is active.

1

Verify that the 3/4-14 NPT mounting threads on both the machine case and the PROXPAC adapter are clean, burr-free, and treated with compatible thread sealant.

2

Thread the standoff adapter into the machinery casing, tightening to the specified torque limit to prevent loose mechanical oscillation during operation.

3

Use a calibrated digital multimeter to monitor the DC gap voltage at the Proximitor Sensor terminals while carefully adjusting the probe position until the target mechanical midpoint (typically -10.0 Vdc) is reached.

4

Tighten the physical locknut, plug any unused conduit openings with the supplied NPT plugs, and secure the weatherproof cover to complete the installation.

FAQ

What probe configuration is used in this PROXPAC XL assembly?

This assembly is integrated with a Bently Nevada 3300 XL 8 mm proximity probe configured with option 28, which includes multiple agency approvals for hazardous locations.

What do the standoff and penetration dimensions represent?

The standoff adapter (Option 30) has a length of 3.0 inches (76 mm), and the probe penetration depth (Option 37) is 3.7 inches (94 mm) to fit specific machine casing configurations.

What thread sizes are featured on the mounting and housing interfaces?

The mounting thread (Option 02) and the fittings option (Option 01) utilize standard 3/4-14 NPT threads for industrial conduit and machine case integration.

View all FAQs →

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

Technical Datasheet

Bently Nevada 330880-28-30-37-01-02 PROXPAC XL Proximity Transducer Assembly

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  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
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Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
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Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

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