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- 3300 XL 25mm Proximity Probe
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Industrial Proximity Probe Extension Cable Assembly
Model: 330851-02-000-070-10-00-CN
1. Brand & Product Positioning
This model belongs to an industrial vibration monitoring and rotating machinery protection instrumentation system used for continuous condition monitoring of critical rotating equipment.
It is widely applied in power generation plants, oil and gas facilities, petrochemical processing units, and heavy industrial manufacturing environments where rotating machinery reliability is essential.
The system is designed to measure shaft vibration, radial displacement, and axial movement in real time, supporting early detection of mechanical faults such as imbalance, misalignment, rotor instability, and bearing wear.
The model structure “330851” identifies the product family, “070” indicates a 7.0 m cable length, and the suffix “10-00-CN” defines connector configuration, shielding design, and a region-specific variant.
2. Product Overview
This product is a proximity probe extension cable assembly used to transmit low-level eddy current signals between a proximity probe and a monitoring system.
It is a key component in vibration measurement chains, ensuring stable and accurate signal transmission without distortion or attenuation.
The cable is factory-terminated with precision coaxial connectors on both ends, ensuring repeatable performance and eliminating field wiring variability.
It is designed for long-term operation in harsh industrial environments characterized by vibration, high temperature, oil exposure, and electromagnetic interference.
The “CN” suffix typically indicates a regional configuration or labeling variant while maintaining identical core electrical and mechanical characteristics.
3. Technical Parameters
Electrical & Mechanical Specifications
| Parameter | Specification |
|---|---|
| Model | 330851-02-000-070-10-00-CN |
| Product Type | Proximity probe extension cable assembly |
| Function | Shaft vibration and displacement signal transmission |
| Cable Length | 7.0 m |
| Signal Type | Eddy current analog displacement signal |
| Shielding Structure | Multi-layer braided + foil shielding |
| Connector Type | Industrial sealed coaxial connectors |
| Operating Temperature | -40°C to +200°C |
| Insulation Material | Fluoropolymer high-performance insulation |
| Outer Jacket | Oil-resistant, chemical-resistant industrial polymer |
| EMI Resistance | High electromagnetic interference immunity |
| Cable Diameter | 5–8 mm (approx.) |
| Minimum Bend Radius | ≥ 25 mm |
| Weight | ~0.66 kg |
| Dimensions | 7000 mm length (coiled diameter ~380 mm) |
| Mechanical Design | Continuous vibration-resistant structure |
| Installation Type | Factory pre-assembled plug-and-play |
| Configuration Code | 10-00-CN specification |
4. Product Introduction
This cable assembly is an essential part of industrial vibration monitoring systems used for rotating machinery protection.
It connects the proximity probe to downstream signal conditioning or monitoring equipment, forming a complete displacement measurement chain.
The product ensures stable transmission of high-frequency eddy current signals with minimal noise and signal degradation.
It is fully factory-assembled to ensure consistent quality, reduce installation complexity, and improve system reliability.
Its structure is optimized for long-term stability under continuous vibration, thermal stress, and harsh industrial conditions.
5. Applications
This model is widely used in industrial rotating machinery monitoring systems.
It is installed in steam turbine units for shaft vibration, eccentricity, and axial displacement measurement.
It is used in centrifugal and axial compressors in oil and gas facilities for rotor stability monitoring and fault diagnosis.
It is applied in hydroelectric generator systems for rotor alignment and dynamic behavior analysis.
It is commonly deployed in large industrial pump systems requiring continuous vibration monitoring.
In petrochemical plants, steel mills, and paper production facilities, it supports predictive maintenance through real-time displacement data acquisition.
6. Product Advantages
This model provides stable and low-noise signal transmission over medium-to-long cable distances.
Its multi-layer shielding structure significantly reduces electromagnetic interference in industrial environments.
The outer jacket is resistant to oil, chemicals, abrasion, and high temperature exposure.
Factory pre-termination improves installation efficiency and eliminates field wiring inconsistencies.
The cable maintains flexibility while resisting fatigue under continuous vibration conditions.
It integrates seamlessly into standardized industrial vibration monitoring architectures.
7. Product Series Overview
This model belongs to a proximity measurement system used for rotating machinery condition monitoring.
The system consists of three core components:
A proximity probe for detecting shaft movement, an extension cable for signal transmission, and a monitoring module for signal processing.
Together, these components form a calibrated measurement chain used for real-time vibration monitoring and predictive maintenance.
8. Related Models (Same Series / Closely Related Variants)
| Model | Description | Cable Length | Weight (kg) | Dimensions |
|---|---|---|---|---|
| 330851-02-000-030-10-00-CN | Short extension cable assembly | 3.0 m | 0.44 | 3000 mm coiled |
| 330851-02-000-050-10-00-CN | Standard 5.0 m extension cable | 5.0 m | 0.56 | 5000 mm coiled |
| 330851-02-000-060-10-00-CN | 6.0 m extension cable assembly | 6.0 m | 0.62 | 6000 mm coiled |
| 330851-02-000-070-10-00-CN | 7.0 m extension cable assembly | 7.0 m | 0.66 | 7000 mm coiled |
| 330851-02-000-080-10-00-CN | Long extension cable assembly | 8.0 m | 0.84 | 8000 mm coiled |
9. Popular Models (Same System Family – Industrial Monitoring Portfolio)
| Model | Description | Function | Weight (kg) | Dimensions |
|---|---|---|---|---|
| 330780-90-00 | Standard proximity probe | Shaft vibration sensing | 0.12 | ~90 mm probe length |
| 330785-91-00 | High-temperature proximity probe | Turbine monitoring | 0.29 | ~100 mm probe length |
| 330876-02-00 | Signal conditioning module | Signal processing unit | 2.30 | 120 × 80 × 60 mm |
| 3500/42M | Machinery protection module | Vibration monitoring system | 2.90 | Rack-mounted module |
| 3500/92 | Communication gateway module | Data acquisition interface | 3.20 | Rack-mounted unit |
10. Summary
This model is a precision-engineered cable assembly used in industrial vibration monitoring systems for rotating machinery protection.
It ensures stable and accurate transmission of displacement signals between sensing and processing equipment.
Its durability, shielding performance, and factory-assembled structure make it suitable for long-term operation in harsh industrial environments.
It is widely used in critical applications where reliability, operational safety, and predictive maintenance capability are required.