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- 330903-00-03-10-11-CN
- 3300 XL NSv Proximity Probe
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Industrial Proximity Probe System – Model 330903-00-03-10-11-CN
Brand
The model 330903-00-03-10-11-CN belongs to the industrial machinery condition monitoring product portfolio of Bently Nevada.
The brand is recognized for providing precision monitoring technologies for rotating equipment operating in power generation, petrochemical processing, oil and gas production, marine engineering, mining, metallurgy, paper manufacturing, and other heavy industrial industries. Its products are developed to improve equipment reliability, reduce maintenance costs, support predictive maintenance programs, and enhance overall operational safety.
Product Series
The 330903-00-03-10-11-CN is part of the 3300 XL 8 mm Proximity Probe Series.
The 3300 XL Series is designed to provide accurate, continuous, and non-contact displacement measurement using eddy current sensing technology. A complete monitoring system generally consists of a proximity probe, an extension cable, and a signal conditioning module that work together to deliver highly stable monitoring signals for machinery protection systems.
Major characteristics of the series include:
- High measurement precision
- Excellent signal stability
- Outstanding linearity
- Fast dynamic response
- Strong resistance to industrial interference
- Excellent environmental adaptability
- Compact mechanical structure
- Reliable continuous operation
- Easy installation and maintenance
The CN suffix represents a specific configuration or regional version while maintaining full compatibility with the standard 3300 XL platform.
Product Introduction
The 330903-00-03-10-11-CN is a precision non-contact proximity probe developed for continuous monitoring of shaft vibration, shaft position, radial displacement, and axial movement in industrial rotating machinery.
The probe continuously measures the distance between its sensing surface and a conductive rotating shaft without physical contact. During operation, shaft movement caused by imbalance, misalignment, rotor eccentricity, bearing wear, thermal expansion, or mechanical looseness is accurately converted into an analog electrical signal for real-time monitoring.
Its non-contact operating principle eliminates mechanical wear while maintaining high measurement accuracy throughout long operating periods.
The probe features a rugged stainless steel housing, shielded industrial cable, and durable mechanical construction suitable for harsh industrial environments involving vibration, oil contamination, moisture, dust, and elevated temperatures.
Its compact dimensions also allow installation inside bearing housings and other confined machinery locations where installation space is limited.
Working Principle
The sensing system operates according to the eddy current measurement principle.
The probe generates a stable high-frequency electromagnetic field at the sensing tip.
When the conductive shaft enters the sensing field, eddy currents are induced on the shaft surface.
The interaction between these eddy currents and the electromagnetic field changes the electrical impedance of the sensing circuit.
The signal conditioning electronics convert these impedance variations into a proportional analog voltage output representing shaft displacement.
Because there is no mechanical contact during measurement, the system provides excellent repeatability, rapid response, and outstanding long-term reliability.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 330903-00-03-10-11-CN |
| Product Type | Industrial Non-contact Proximity Probe |
| Measurement Principle | Eddy Current Technology |
| Product Series | 3300 XL 8 mm Proximity Probe Series |
| Probe Diameter | 8 mm |
| Measurement Function | Shaft Vibration, Shaft Position, Radial Displacement, Axial Position |
| Output Signal | Analog Voltage |
| Typical Linear Measurement Range | Approximately 2–4 mm |
| Sensitivity | Approximately 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 Protection | Resistant to Oil, Dust, Moisture and Industrial Vibration |
| Electromagnetic Compatibility | High EMI/RFI Immunity |
| Dimensions | Approximately Ø8 mm × 50 mm |
| Weight | Approximately 0.12 kg |
Product Applications
The 330903-00-03-10-11-CN is suitable for continuous machinery condition monitoring in numerous industrial applications.
Typical installations include:
- Steam turbines
- Gas turbines
- Hydroelectric generating units
- Industrial generators
- Centrifugal compressors
- Axial compressors
- High-speed electric motors
- Boiler feed pumps
- Process pumps
- Cooling water pumps
- Marine propulsion equipment
- Metallurgical rolling mills
- Mining machinery
- Cement production equipment
- Paper manufacturing machinery
- Petrochemical production facilities
- Natural gas compressor stations
- Chemical processing plants
- Industrial blowers
- Large centrifugal fans
The probe is especially appropriate for critical machinery requiring continuous online monitoring and early fault detection.
Product Advantages
The 330903-00-03-10-11-CN offers numerous operational benefits.
- High-precision non-contact displacement measurement.
- No mechanical wear during continuous operation.
- Excellent long-term measurement stability.
- High sensitivity to small shaft movement.
- Fast response to dynamic vibration changes.
- Durable stainless steel construction.
- Excellent resistance to oil, moisture, dust, and industrial vibration.
- High immunity to electromagnetic interference.
- Stable operation during continuous industrial service.
- Compact structure allows flexible installation.
- Low maintenance requirements.
- Long operational service life.
- Supports predictive maintenance strategies.
- Improves machinery reliability.
- Reduces unexpected equipment shutdowns.
- Enhances production efficiency and operational safety.
Recommended Models from the Same Series
| Model | Product Description | Probe Diameter | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 330901-00-03-10-11-CN | Standard Proximity Probe | 8 mm | Ø8 × 50 mm | 0.11 |
| 330902-00-03-10-11-CN | High Stability Probe | 8 mm | Ø8 × 50 mm | 0.12 |
| 330904-00-03-10-11-CN | Extended Configuration Probe | 8 mm | Ø8 × 55 mm | 0.14 |
| 330905-00-03-10-11-CN | Heavy-Duty Industrial Probe | 8 mm | Ø8 × 65 mm | 0.15 |
| 330906-00-03-10-11-CN | Compact Installation Probe | 8 mm | Ø8 × 45 mm | 0.10 |
Recommended Popular Models from the Same Brand
| Model | Product Type | Primary Function | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| 3500/42M | Vibration Monitoring Module | Shaft Vibration Monitoring | 170 × 110 × 45 | 0.50 |
| 3500/40M | Proximitor Monitoring 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 Module | Industrial Network Communication | 180 × 120 × 50 | 0.60 |
| 3500/15 | Power Supply Module | System Power Distribution | 200 × 130 × 60 | 0.75 |
Summary
The 330903-00-03-10-11-CN is a high-performance non-contact proximity probe designed for precision shaft displacement, shaft position, and vibration monitoring in industrial rotating machinery.
As a member of the 3300 XL 8 mm Proximity Probe Series, it combines advanced eddy current sensing technology with excellent linearity, stable signal output, outstanding environmental resistance, and dependable long-term performance. These characteristics make it highly suitable for turbines, compressors, pumps, generators, motors, and other critical rotating equipment operating under demanding industrial conditions.
Its compact dimensions, lightweight construction, durable stainless steel housing, and high measurement accuracy provide reliable long-term monitoring while supporting predictive maintenance programs, machinery protection strategies, equipment diagnostics, and improved operational efficiency across a broad range of industrial applications.