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SKU: 330881-28-04-110-06-02

330881-28-04-110-06-02 | Bently Nevada | PROXPAC XL Proximity Transducer

Technical Overview

The Bently Nevada 330881-28-04-110-06-02 PROXPAC XL Proximity Transducer measures shaft displacement, vibration, and position in rotating machinery. It interfaces with the Bently Nevada 3500 Monitoring System to provide real-time data for condition monitoring and protection. The transducer operates on eddy current principles, generating a voltage proportional to the gap between the probe tip and the target surface. Its hardened stainless steel construction withstands high-temperature, high-pressure environments typical in turbomachinery. The XL variant offers extended cable lengths for flexible installation in constrained spaces.

Detailed Specifications

ParameterSpecification
ManufacturerBently Nevada
Part Number330881-28-04-110-06-02
Product TypePROXPAC XL Proximity Transducer
Measurement Range0-2.0 mm (80 mils)
Output Signal-2 to -18 VDC (gap voltage)
Temperature Range-40°C to +150°C (-40°F to +302°F)
Cable Length10 m (32.8 ft) standard
CompatibilityBently Nevada 3500/3300 monitoring systems

Operational Capabilities

Designed for continuous monitoring of critical turbomachinery in gas turbines, compressors, and steam turbines. Maintains ±1% linearity across full operating range. IP67-rated housing resists moisture and particulate ingress. Meets API 670 standards for machinery protection systems. Typical MTBF exceeds 100,000 hours in refinery and power generation applications.

Technical FAQ

Q: Does this transducer require external signal conditioning?
A: No. The PROXPAC XL outputs a direct gap voltage signal compatible with Bently Nevada 3500 monitor input modules.

Q: What target material specifications apply?
A: Requires ferrous steel targets with minimum thickness of 1.5mm and surface roughness ≤4µm Ra. Non-conductive coatings must be <0.25mm thick.