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- 330851-02-000-080-10-00-05
- 3300 XL 25mm Proximity Probe
- USA
- 8 mm
- 0.6kg
- Xiamen, China
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Technical Overview and Application Guide
330851-02-000-080-10-00-05 Vibration Proximity Probe System
1. Product Introduction
The model 330851-02-000-080-10-00-05 belongs to a proximity probe measurement system designed for continuous vibration and displacement monitoring of rotating machinery such as turbines, compressors, pumps, and motors.
It is typically part of an 8 mm eddy current proximity transducer system used in industrial condition monitoring applications. The system measures shaft vibration, axial position (thrust), and keyphasor signals with high precision.
The structure generally includes a probe, extension cable, and driver (signal conditioning module). The probe uses eddy current technology to detect the distance between the probe tip and a conductive target surface.
2. Product Technical Parameters
2.1 General Electrical Parameters
- Measurement principle: Eddy current displacement sensing
- Output signal: Voltage proportional to gap distance
- Frequency response: DC to high-frequency vibration range (typically up to several kHz)
- Sensitivity: Typically 7.87 mV/µm (nominal for 8 mm systems)
- Operating voltage: -17 VDC to -24 VDC (system dependent)
- Linear range: Approximately 2.0 mm to 2.5 mm
- Gap range: Adjustable depending on installation calibration
2.2 Mechanical Parameters
- Probe diameter: 8 mm
- Probe body material: Stainless steel housing
- Cable type: High-temperature coaxial cable
- Cable length configuration: 0.8 m / 1 m / 5 m / 9 m / 10 m (variant dependent)
- Connector type: Miniature coaxial connector system
- Installation thread: Standard industrial mounting thread (probe dependent design)
2.3 Dimensions and Weight
| Item | Specification |
|---|---|
| Probe diameter | 8 mm |
| Probe length | ~100 mm (typical) |
| Extension cable diameter | ~4–5 mm |
| Total system length | Configurable (0.8 m to 10 m+) |
| Probe weight | ~0.10 – 0.20 kg |
| Complete system weight | ~0.25 – 0.60 kg |
3. Product Function Description
This system converts shaft position changes into electrical signals using eddy current principle. When the probe is placed near a conductive shaft, changes in distance alter the electromagnetic field, which is then converted into a measurable voltage output.
Main measured parameters include:
- Radial vibration
- Axial displacement
- Shaft position (thrust monitoring)
- Speed/keyphasor signal (with compatible configuration)
4. Application Areas
This product is widely used in heavy industrial monitoring environments, including:
- Steam turbine monitoring systems
- Gas turbine vibration detection
- Centrifugal compressors
- Industrial pumps (oil & gas, petrochemical)
- Power generation equipment
- Paper mill rotating machinery
- Large motors and generators
- Marine propulsion systems
It is typically installed in condition monitoring systems for predictive maintenance and machinery protection.
5. Product Advantages
- High measurement accuracy for micro-displacement detection
- Stable performance under high temperature and harsh environments
- Strong anti-interference capability in industrial settings
- Long-term continuous monitoring suitability
- Modular system design (probe + cable + driver separation)
- Excellent linearity within operating range
- Suitable for critical machinery protection systems
- Low drift over long operating periods
6. Product Series Overview
This model belongs to the 8 mm eddy current proximity probe system series, commonly used in industrial machinery monitoring platforms.
Key characteristics of the series:
- Standardized 8 mm probe design
- Interchangeable probe and cable configurations
- Compatibility with vibration monitoring modules
- Designed for permanent installation in rotating equipment
7. Recommended Models (Same Series or Closely Related)
7.1 Same Series Models
| Model | Description | Key Parameters | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 330851-02-000-050-10-00-05 | Short cable configuration probe | 8 mm, 5 m cable, vibration monitoring | 8 mm × ~95 mm | 0.22 |
| 330851-02-000-090-10-00-05 | Extended cable version | 8 mm, 9 m cable, high-temp design | 8 mm × ~100 mm | 0.30 |
| 330851-02-000-080-10-00-00 | Standard industrial version | 8 mm, 8 m cable, general monitoring | 8 mm × ~100 mm | 0.28 |
| 330851-02-000-060-10-00-05 | Medium cable variant | 8 mm, 6 m cable, compressor use | 8 mm × ~98 mm | 0.25 |
| 330851-02-000-100-10-00-05 | Extra-long cable version | 8 mm, 10 m cable, turbine systems | 8 mm × ~105 mm | 0.35 |
8. Recommended Models (Same Manufacturer – Popular Series)
| Model | Description | Key Parameters | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 330780-90-00 | Proximity probe standard type | 8 mm system, general vibration sensing | 8 mm × ~100 mm | 0.18 |
| 330400-02-05 | High temperature probe | 8 mm, improved heat resistance | 8 mm × ~102 mm | 0.20 |
| 330180-50-00 | Velocity monitoring module | Signal processing unit | 120 × 80 × 40 mm | 0.45 |
| 330100-90-00 | Signal driver unit | Converts probe signal to output voltage | 150 × 100 × 50 mm | 0.80 |
| 330500-12-00 | Vibration monitoring module | Multi-channel condition monitoring | 200 × 120 × 60 mm | 1.20 |
9. Summary
The 330851-02-000-080-10-00-05 proximity probe system is designed for precise shaft vibration and displacement monitoring in critical rotating machinery. Its modular structure, stable signal output, and adaptability to harsh industrial environments make it suitable for long-term condition monitoring systems in power generation and heavy industry.
Its main value lies in early fault detection, allowing maintenance teams to prevent equipment failure and reduce downtime.