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- 330903-00-04-05-02-05
- 3300 XL NSv Proximity Probe
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Industrial Proximity Probe System – Model 330903-00-04-05-02-05
Brand
The model 330903-00-04-05-02-05 belongs to the industrial machinery condition monitoring product portfolio of Bently Nevada.
This product family is widely applied in power generation, oil and gas, petrochemical refining, marine propulsion, mining, metallurgy, cement production, paper manufacturing, and other heavy industrial sectors. The system is designed to continuously monitor rotating machinery condition, improve operational reliability, and support predictive maintenance strategies for critical assets.
Product Series
The 330903-00-04-05-02-05 is part of the 3300 XL 8 mm Proximity Probe Series.
This series provides high-precision, non-contact shaft displacement measurement using eddy current sensing technology. A complete measurement system typically consists of:
- Proximity probe
- Extension cable
- Signal conditioning module
Key characteristics of the series include:
- High measurement accuracy
- Excellent long-term stability
- Strong resistance to industrial vibration and interference
- High temperature tolerance
- Excellent linearity
- Fast dynamic response
- Compact structure for easy installation
- Continuous real-time monitoring capability
This series is widely used for machinery protection and condition monitoring of rotating equipment.
Product Introduction
The 330903-00-04-05-02-05 is a precision non-contact eddy current proximity probe designed for continuous measurement of shaft vibration, shaft position, radial displacement, and axial movement in industrial rotating machinery.
The probe operates without physical contact with the shaft, which eliminates mechanical wear and ensures stable long-term operation. During machine operation, any changes in shaft behavior caused by imbalance, misalignment, bearing wear, thermal expansion, rotor instability, or mechanical looseness are detected and converted into electrical signals.
Its robust stainless steel construction and shielded cable design allow reliable performance in harsh industrial environments including high temperature, humidity, vibration, oil contamination, and dust exposure.
The compact form factor allows installation in tight mechanical spaces such as bearing housings and machine casings.
Working Principle
The probe operates using eddy current technology.
A high-frequency electromagnetic field is generated at the probe tip.
When a conductive metallic shaft enters the sensing field, eddy currents are induced on the surface of the shaft.
These eddy currents alter the impedance of the probe system.
The signal conditioning unit converts these impedance variations into a proportional analog voltage output representing shaft displacement.
This non-contact measurement method ensures high accuracy, stability, and long service life.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 330903-00-04-05-02-05 |
| Product Type | Non-contact Proximity Probe |
| Measurement Principle | Eddy Current Technology |
| Series | 3300 XL 8 mm Proximity Probe Series |
| Probe Diameter | 8 mm |
| Measurement Function | Shaft Vibration, Shaft Position, Radial & Axial Displacement |
| Output Signal | Analog Voltage |
| Linear Measurement Range | Approximately 2–4 mm |
| Sensitivity | ~7.87 V/mm (system dependent) |
| Frequency Response | Suitable for high-speed rotating machinery |
| Housing Material | Stainless Steel |
| Cable Type | Shielded High-Temperature Coaxial Cable |
| Connector Type | Industrial Standard Connector |
| Installation Method | Threaded Mounting |
| Operating Temperature | -35°C to +177°C |
| Environmental Resistance | Oil, Dust, Moisture, Vibration Resistant |
| EMI/RFI Protection | High Immunity |
| Dimensions | Approximately Ø8 mm × 50 mm |
| Weight | Approximately 0.12 kg |
Product Applications
The 330903-00-04-05-02-05 is widely used in rotating machinery condition monitoring systems across many industries.
Typical applications include:
- Steam turbine units
- Gas turbine generators
- Hydroelectric turbine systems
- Industrial compressors
- Axial compressors
- Centrifugal compressors
- High-speed motors
- Industrial pump systems
- Boiler feed pumps
- Cooling water pumps
- Marine propulsion systems
- Metallurgical rolling mills
- Mining machinery
- Cement production equipment
- Petrochemical plants
- Chemical processing units
- Natural gas compressor stations
- Industrial blower systems
- Large ventilation fans
- Heavy rotating industrial equipment
It is especially suitable for continuous monitoring and early fault detection of critical rotating machinery.
Product Advantages
The 330903-00-04-05-02-05 provides strong operational advantages in industrial environments:
- Non-contact measurement eliminates mechanical wear
- High accuracy displacement detection
- Stable long-term performance
- Fast response to dynamic shaft movement
- High sensitivity to micro-vibration
- Durable stainless steel construction
- Strong resistance to oil, dust, moisture, and vibration
- Excellent electromagnetic interference protection
- Continuous 24/7 operational reliability
- Compact design for tight installation spaces
- Low maintenance requirements
- Long operational lifespan
- Supports predictive maintenance strategies
- Improves machinery reliability and safety
- Reduces unexpected downtime
- Enhances production efficiency
Recommended Models from the Same Series
| Model | Description | Probe Diameter | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 330901-00-04-05-02-05 | Standard Proximity Probe | 8 mm | Ø8 × 50 mm | 0.11 |
| 330902-00-04-05-02-05 | High Stability Probe | 8 mm | Ø8 × 50 mm | 0.12 |
| 330904-00-04-05-02-05 | Extended Configuration Probe | 8 mm | Ø8 × 55 mm | 0.14 |
| 330905-00-04-05-02-05 | Heavy-Duty Industrial Probe | 8 mm | Ø8 × 65 mm | 0.15 |
| 330906-00-04-05-02-05 | Compact Installation Probe | 8 mm | Ø8 × 45 mm | 0.10 |
Recommended Popular Models from the Same Brand
| Model | Product Type | Function | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| 3500/42M | Vibration Monitor Module | Shaft Vibration Monitoring | 170 × 110 × 45 | 0.50 |
| 3500/40M | Proximitor Monitor Module | Shaft Displacement Monitoring | 160 × 100 × 40 | 0.45 |
| 3500/22M | Rack Interface Module | System Communication Interface | 150 × 100 × 35 | 0.40 |
| 3500/92 | Communication Gateway Module | Industrial Network Communication | 180 × 120 × 50 | 0.60 |
| 3500/15 | Power Supply Module | System Power Distribution | 200 × 130 × 60 | 0.75 |
Summary
The 330903-00-04-05-02-05 is a high-precision non-contact eddy current proximity probe designed for continuous monitoring of shaft vibration, displacement, and position in rotating machinery.
As part of the 3300 XL 8 mm Proximity Probe Series, it provides stable measurement performance, high accuracy, strong environmental resistance, and long operational life. It is widely used in turbines, compressors, pumps, motors, generators, and other critical rotating equipment operating under demanding industrial conditions.
Its compact structure, robust stainless steel housing, and reliable signal output make it a practical solution for predictive maintenance, machinery protection, and continuous condition monitoring applications.