Technical Product Report

Model: 330881-28-04-130-03-02

1. Brand Overview

The 330881-28-04-130-03-02 belongs to a widely used industrial machinery protection and condition monitoring product family designed for vibration measurement and rotating equipment diagnostics.

This product line is applied in industries where continuous operation, high reliability, and equipment safety are essential, including:

• Power generation systems
• Oil and gas facilities
• Petrochemical processing units
• Offshore platforms
• Mining and metallurgy industries
• Marine propulsion systems
• Heavy industrial automation environments
• Paper and pulp production facilities

The design emphasizes high precision measurement, long-term stability, and strong resistance to harsh industrial environments such as vibration, oil exposure, humidity, and electromagnetic interference.

2. Product Series

The 330881-28-04-130-03-02 belongs to the 3300 XL 8 mm Proximity Transducer System, specifically within the 330881 Proximity Probe Assembly Series.

This system is part of a complete rotating machinery condition monitoring architecture used for:

• Shaft vibration monitoring
• Radial displacement measurement
• Axial position detection
• Rotor eccentricity monitoring
• Thrust position monitoring

A complete system includes:

• 330881 proximity probe (sensor element)
• 330880 extension cable (signal transmission line)
• Proximitor monitoring module (signal processing unit)

The probe is the core sensing element responsible for converting mechanical motion into electrical signals.

3. Product Introduction

The 330881-28-04-130-03-02 is an 8 mm proximity probe designed for high-precision vibration and displacement monitoring in rotating machinery systems.

It operates using eddy current sensing technology. The probe generates a high-frequency electromagnetic field, and variations in the distance between the probe tip and conductive shaft surface are converted into electrical signals.

This model features a 1.30 m integrated cable length, combined with a specialized mounting configuration (“04” variant), designed for installation environments where structural alignment or bracket positioning requires non-standard probe mounting geometry.

It is intended for continuous industrial monitoring applications requiring stable output, long-term durability, and resistance to harsh operating conditions.

The probe is manufactured using stainless steel housing and industrial-grade insulation materials, ensuring reliability under vibration, oil exposure, humidity, and temperature variations.

4. Technical Specifications

5. Product Function Description

This proximity probe functions as the primary sensing element in rotating machinery monitoring systems.

It continuously measures the distance between the probe tip and the rotating shaft surface. Any variation caused by vibration, imbalance, misalignment, or mechanical wear is converted into an electrical signal.

The monitoring system processes this signal to evaluate machine health conditions such as rotor instability, bearing wear, and alignment deviation.

The probe is calibrated within a complete system to ensure stable and repeatable measurement accuracy in industrial environments.

6. Application Areas

The 330881-28-04-130-03-02 is widely used in industrial machinery protection and condition monitoring systems.

Typical applications include:

• Steam turbine vibration monitoring
• Gas turbine shaft displacement measurement
• Centrifugal compressor condition monitoring
• Axial compressor protection systems
• Industrial pump vibration monitoring
• Large motor condition monitoring
• Generator rotor displacement systems
• Cooling fan and blower systems
• Hydro turbine monitoring systems
• Marine propulsion shaft systems
• Petrochemical rotating machinery
• Refinery process equipment
• LNG compressor systems
• Mining machinery monitoring
• Steel mill rolling equipment
• Cement plant machinery systems
• Paper production machinery
• Offshore platform rotating equipment
• Pipeline compressor stations
• Predictive maintenance systems

These applications require high reliability, continuous operation, and precise real-time measurement.

7. Product Advantages

Specialized Mounting Configuration

The “04” design supports non-standard mechanical installation conditions and improves adaptability in constrained spaces.

Balanced Cable Length

1.30 m cable length provides stable routing flexibility for medium-distance installations.

High Measurement Accuracy

Ensures stable and precise detection of shaft vibration and displacement.

Strong Environmental Resistance

Performs reliably under oil, moisture, dust, and chemical exposure.

Stable Long-Term Output

Maintains consistent performance over long industrial operating cycles.

High EMI Immunity

Designed to resist electromagnetic interference in industrial environments.

Easy System Integration

Fully compatible with standard 3300 XL monitoring architecture.

Low Maintenance Requirement

Engineered for long-term industrial use with minimal servicing needs.

8. Recommended Models (Same Series / Related Products)

9. Recommended Popular Models (Same Brand Ecosystem)

10. Summary

The 330881-28-04-130-03-02 is a precision 8 mm proximity probe designed for rotating machinery monitoring systems with a specialized mounting configuration and 1.30 m cable length.

It functions as a key sensing element that converts shaft motion into electrical signals for vibration and displacement analysis.

With strong structural durability, stable performance, and resistance to harsh industrial environments, it is widely applied in turbines, compressors, pumps, motors, and auxiliary industrial systems.

It plays a critical role in predictive maintenance by enabling early fault detection, improving equipment reliability, and ensuring safe continuous industrial operation.