For additional discounts, please contact our five-star sales manager Lisa Lin.

Description：

The Bently Nevada 330801-28-00-050-03-02 PROXPAC XL Proximity Transducer is a self-contained proximity measurement assembly used for machinery protection and condition monitoring applications.This configuration includes a 3300 XL 8 mm proximity probe with multiple hazardous-area approvals and a probe penetration of 50 mm. No standoff adapter is included, making the assembly suitable for installations where direct mounting is preferred. The fitting package contains one 3/4-14 NPT fitting, one 3/4-14 to 1/2-14 NPT reducer, and two sealing plugs, while the 3/4-14 NPT mounting thread provides secure installation on machinery housings and bearing assemblies.

The PROXPAC XL assembly delivers accurate non-contact measurements for shaft vibration, axial position, differential expansion, eccentricity, and rotational speed monitoring. The integrated 3300 XL system provides a nominal scale factor of 7.87 V/mm (200 mV/mil), a 2.0 mm (80 mils) linear measurement range, and a frequency response from 0 to 10 kHz. The housing is manufactured from glass-reinforced polyphenylene sulfide (PPS) and is rated Type 4X/IP66, providing excellent resistance to moisture, dust, corrosion, and harsh industrial environments.

Specification：

Frequently asked questions

Q1: What is the Bently Nevada 330801-28-00-050-03-02 PROXPAC XL Proximity Transducer?

A: The 330801-28-00-050-03-02 PROXPAC XL is a proximity transducer assembly used for monitoring shaft vibration and position in rotating machinery. 

Q2: What does the 330801-28-00-050-03-02 Probe Penetration code "050" indicate?

A: The 330801-28-00-050-03-02 code 050 specifies a 50 mm probe penetration length, allowing the probe to be positioned correctly within the machine housing for accurate measurements.

Q3: What mounting thread is used on the 330801-28-00-050-03-02?

A: This PROXPAC XL assembly features a 3/4-14 NPT mounting thread, which is commonly used in industrial monitoring and machinery protection systems.

Q4: What is the purpose of the 50 mm probe penetration?

A: The 50 mm penetration length enables the probe to reach the desired measurement location inside the machine while maintaining proper clearance and alignment for reliable shaft monitoring.

Product Applications

Oil & Gas: Widely used in large centrifugal compressors, reciprocating compressors, and process gas compressors.

Power Generation: Used for core monitoring of steam turbines (such as labyrinth seals and differential expansion measurement) and gas turbines.

Petrochemical: Monitors shaft vibration, axial displacement, and speed in various fluid-film bearing machinery.

Heavy Machinery: Widely used for online condition monitoring and fault early warning of various industrial drive equipment and auxiliary rotating machinery.