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- 330881-28-04-180-03-02
- PROXPAC XL Proximity Transducer Assembly
- USA
- 1.80 m
- 0.31kg
- Xiamen, China
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Technical Product Report
Model: 330881-28-04-180-03-02
1. Brand Overview
The 330881-28-04-180-03-02 belongs to a widely used industrial machinery condition monitoring product family designed for vibration measurement and rotating equipment protection.
This product line is applied in critical industrial environments where continuous operation, equipment safety, and long-term reliability are essential, including:
- Power generation plants
- Oil and gas production facilities
- Petrochemical processing units
- Offshore platforms
- Marine propulsion systems
- Mining and metallurgy industries
- Steel and cement manufacturing plants
- Paper production systems
- Industrial automation systems
The design focuses on stable measurement performance, long service life, strong environmental resistance, and high compatibility with predictive maintenance systems.
2. Product Series
The 330881-28-04-180-03-02 belongs to the 3300 XL 8 mm Proximity Transducer System, specifically within the 330881 Proximity Probe Assembly Series.
This system is widely used for continuous monitoring of rotating machinery, including:
- Shaft vibration monitoring
- Radial displacement measurement
- Axial position detection
- Rotor eccentricity monitoring
- Thrust position monitoring
A complete monitoring system includes:
- 330881 proximity probe (sensor element)
- 330880 extension cable
- Proximitor sensor module
- Monitoring/protection system
The probe is the core sensing element converting mechanical motion into electrical signals.
3. Product Introduction
The 330881-28-04-180-03-02 is an 8 mm eddy current proximity probe designed for accurate, non-contact measurement of rotating shaft vibration and displacement.
It operates by generating a high-frequency electromagnetic field at the probe tip. When a conductive target (such as a rotating shaft) enters this field, eddy currents are induced and converted into a proportional electrical signal.
This configuration includes a 1.80 m integrated cable length, making it suitable for installations requiring extended routing distance between sensor and connection point.
The “04” mounting configuration indicates a specialized structural design intended for flexible installation conditions where mechanical layout constraints exist.
The probe is designed for continuous industrial operation, offering stable performance, high reliability, and strong resistance to harsh environmental conditions.
4. Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 330881-28-04-180-03-02 |
| Product Type | 8 mm Proximity Probe Assembly |
| Series | 3300 XL 8 mm Proximity Transducer System |
| Measurement Principle | Eddy Current Displacement Measurement |
| Probe Diameter | 8 mm |
| Probe Material | Stainless Steel |
| Cable Type | Shielded Integrated Coaxial Cable |
| Cable Length | 1.80 m |
| Mounting Configuration | Code 04 Special Mounting Design |
| Connector Type | Industrial Coaxial Connector |
| Output Signal | Analog Displacement Signal |
| Measurement Functions | Vibration, Shaft Displacement, Axial Position |
| Sensitivity | High Precision Linear Response |
| Dynamic Response | High-Speed Measurement Capability |
| Operating Temperature | -51°C to +177°C |
| Storage Temperature | -55°C to +200°C |
| Environmental Resistance | Oil, moisture, dust resistant |
| EMI Protection | High shielding effectiveness |
| Installation Type | Threaded mounting system |
| Probe Dimensions | Approx. 120 mm × 8 mm |
| Cable Dimensions | Approx. 1800 mm |
| Overall Length | Approx. 1920 mm |
| Weight | Approx. 0.31 kg |
| Maintenance Requirement | Very low |
| Service Life | Long-term continuous industrial operation |
5. Product Function Description
The 330881-28-04-180-03-02 serves as a critical sensing element in rotating machinery monitoring systems.
It continuously measures the distance between the probe tip and the rotating shaft surface. Any change caused by vibration, imbalance, misalignment, or mechanical wear is converted into an electrical signal.
The monitoring system interprets these signals to evaluate machine health conditions such as rotor instability, bearing degradation, and shaft misalignment.
The probe is calibrated as part of a complete system to ensure stable and repeatable measurement accuracy over long operational periods.
6. Application Areas
The 330881-28-04-180-03-02 is widely used in industrial machinery protection and predictive maintenance systems.
Typical applications include:
- Steam turbine vibration monitoring
- Gas turbine shaft displacement measurement
- Centrifugal compressor monitoring
- Axial compressor protection systems
- Industrial pump vibration monitoring
- Large motor condition monitoring
- Generator rotor displacement systems
- Cooling fan systems
- Hydro turbine monitoring systems
- Marine propulsion systems
- Petrochemical rotating equipment
- Refinery process machinery
- LNG compressor systems
- Mining machinery monitoring
- Steel rolling mills
- Cement production machinery
- Paper manufacturing systems
- Offshore platform equipment
- Pipeline compressor stations
- Industrial predictive maintenance systems
These applications require continuous monitoring with high accuracy and long-term reliability.
7. Product Advantages
Extended Cable Design
1.80 m cable supports long routing distance and flexible installation layouts.
High Measurement Accuracy
Ensures precise and stable detection of shaft vibration and displacement.
Non-Contact Measurement
Eliminates mechanical wear and ensures long service life.
Strong Environmental Resistance
Performs reliably under oil, dust, moisture, and industrial contamination.
High EMI Immunity
Shielded design ensures stable signal transmission in noisy electrical environments.
Stable Long-Term Operation
Suitable for continuous industrial monitoring applications.
Easy System Integration
Fully compatible with 3300 XL monitoring architecture.
Low Maintenance Requirement
Robust industrial design reduces maintenance needs.
8. Recommended Models (Same Series / Related Products)
| Model | Description | Key Parameters |
|---|---|---|
| 330881-28-04-090-03-02 | Compact configuration probe | Cable 0.90 m; Weight 0.21 kg |
| 330881-28-04-110-03-02 | Medium configuration probe | Cable 1.10 m; Weight 0.22 kg |
| 330881-28-04-145-03-02 | Extended configuration probe | Cable 1.45 m; Weight 0.24 kg |
| 330881-28-04-165-06-02 | Long configuration probe | Cable 1.65 m; Weight 0.29 kg |
| 330880-28-40-058-01-02 | Extension cable assembly | Length 5.8 m; Weight 0.43 kg |
9. Recommended Popular Models (Same Ecosystem)
| Model | Description | Key Parameters |
|---|---|---|
| 3500/42M | Vibration monitoring module | 241 × 24 × 241 mm; Weight 0.80 kg |
| 3500/40M | Proximitor monitoring module | 241 × 24 × 241 mm; Weight 0.75 kg |
| 3500/22M | Communication interface module | 241 × 24 × 241 mm; Weight 0.76 kg |
| 3500/32M | Relay output module | 241 × 24 × 241 mm; Weight 0.68 kg |
| 3500/15 | Power supply module | 241 × 51 × 241 mm; Weight 1.20 kg |
10. Summary
The 330881-28-04-180-03-02 is a high-performance 8 mm proximity probe designed for rotating machinery monitoring systems requiring extended 1.80 m cable routing and specialized mounting configuration.
It provides precise non-contact measurement of shaft vibration and displacement using eddy current sensing technology. Its robust stainless steel construction, high EMI resistance, and stable long-term performance make it suitable for turbines, compressors, pumps, motors, and other critical industrial equipment.
It plays an essential role in predictive maintenance systems by enabling early fault detection, improving reliability, reducing downtime, and ensuring safe continuous industrial operation.