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- 330851-01-000-020-90-01-05
- 3300 XL 25mm Proximity Probe
- USA
- 2 m / 5 m / 10 m options
- 0.25kg
- Xiamen, China
- New & In Stock
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Technical Specification Report – 330851-01-000-020-90-01-05
1. Product Overview
The 330851-01-000-020-90-01-05 is a compact eddy current proximity probe assembly designed for high-precision, non-contact measurement of shaft vibration and displacement in rotating machinery systems.
It is typically used in machinery protection and condition monitoring applications where space is limited and measurement accuracy must remain stable under continuous industrial operation.
The system detects changes in the electromagnetic field between the probe tip and a conductive target surface, converting these variations into a proportional analog voltage signal for displacement tracking.
2. Brand Information
- Brand category: Industrial condition monitoring instrumentation manufacturer
- Product type: Eddy current proximity probe system
- Application field: Rotating machinery vibration and displacement monitoring
- Technology principle: Electromagnetic eddy current sensing
3. Product Series
- Series family: 3300 XL NSv Proximity Transducer System
This series is optimized for small shaft diameter applications requiring compact installation and high measurement sensitivity.
System composition:
- Proximity probe
- Extension cable
- Signal conditioning module
4. Product Application Areas
The 330851-01-000-020-90-01-05 is widely used in industrial monitoring environments such as:
- Small gas turbines
- High-speed compressors
- Industrial pumps
- Electric motors
- Gearbox assemblies
- Auxiliary rotating machinery
- Marine propulsion auxiliary systems
- Light industrial rotating equipment
Functional monitoring includes:
- Shaft radial vibration measurement
- Axial displacement monitoring
- Rotor dynamic movement tracking
- Bearing condition evaluation
- Machine health diagnostics
5. Technical Parameters
5.1 Electrical Characteristics
| Parameter | Specification |
|---|---|
| Operating voltage | 24 V DC |
| Output signal | Analog voltage signal |
| Measurement principle | Eddy current induction |
| Output impedance | Industrial standard low impedance |
| Frequency response | Up to 10 kHz |
| Signal stability | High long-term stability |
5.2 Measurement Performance
| Parameter | Specification |
|---|---|
| Measurement range | 0 – 2 mm (NSv short-range design) |
| Resolution | ≤ 1 μm |
| Accuracy | ±0.25% – ±0.5% FS |
| Linearity | High linear response |
| Repeatability | Excellent stability |
5.3 Environmental Conditions
| Parameter | Specification |
|---|---|
| Operating temperature | -40°C to +120°C |
| Storage temperature | -55°C to +125°C |
| Humidity | 5% – 95% non-condensing |
| Vibration resistance | Industrial-grade robustness |
| EMI protection | High electromagnetic shielding |
5.4 Mechanical Specifications
| Parameter | Specification |
|---|---|
| Probe tip diameter | Compact NSv miniature design |
| Cable type | Shielded coaxial cable |
| Cable length | 2 m / 5 m / 10 m options |
| Total system weight | ~0.25 kg |
| Probe weight | ~0.06 kg |
| Installation type | Threaded mounting structure |
6. Working Principle
The system operates based on eddy current induction:
- The probe generates a high-frequency electromagnetic field
- A conductive target induces eddy currents when distance changes
- Coil impedance varies according to gap distance
- The signal conditioner converts this variation into calibrated voltage output
This enables precise non-contact measurement of micro-level shaft motion.
7. Product Advantages
7.1 Compact NSv Design
- Suitable for small shaft applications
- Optimized for tight installation spaces
- High sensitivity in short-range measurement
7.2 High Stability Performance
- Stable output under vibration and thermal changes
- Low signal drift over long-term operation
- Suitable for continuous monitoring systems
7.3 Strong Environmental Adaptability
- Resistant to oil, dust, and industrial contamination
- Strong EMI shielding performance
- Reliable in harsh environments
7.4 Easy Installation
- Compact structure simplifies installation
- Flexible mounting options
- Quick replacement capability
7.5 High Precision Output
- Sub-micron resolution capability
- Excellent linear response
- Suitable for predictive maintenance systems
8. Industrial Value
- Prevents unexpected machinery failures
- Improves operational safety and reliability
- Reduces maintenance costs
- Enhances early fault detection capability
- Extends equipment lifespan
9. Related Models (Same Series / Closely Related)
9.1 3300 XL NSv Family Variants
| Parameter | 330851-01-000-020-90-01-05 | 330850-90-000-020-90-01-05 | 330852-01-000-020-90-01-05 | 330853-01-000-020-90-01-05 | 330854-01-000-020-90-01-05 |
|---|---|---|---|---|---|
| Measurement type | Eddy current displacement | Eddy current displacement | Eddy current displacement | Eddy current displacement | Eddy current displacement |
| Voltage | 24 V DC | 24 V DC | 24 V DC | 24 V DC | 24 V DC |
| Frequency response | Up to 10 kHz | Up to 10 kHz | Up to 10 kHz | Up to 10 kHz | Up to 10 kHz |
| Measurement range | 0–2 mm | 0–2 mm | 0–2 mm | 0–2 mm | 0–2 mm |
| Accuracy | ±0.25–0.5% FS | ±0.25–0.5% FS | ±0.25–0.5% FS | ±0.25–0.5% FS | ±0.25–0.5% FS |
| Dimensions | Compact NSv probe | Compact NSv probe | Compact NSv probe | Compact NSv probe | Compact NSv probe |
| Weight (kg) | 0.25 kg | 0.25 kg | 0.25 kg | 0.25 kg | 0.25 kg |
9.2 Five Related Models in Same Ecosystem
| Parameter | 330780-NS-90-01-00 | 330881-28-NS-90-02-02 | 330103-00-NS-90-10-02-00 | 330106-05-NS-90-10-02-00 | 330104-00-NS-90-10-02-00 |
|---|---|---|---|---|---|
| System type | Proximity probe | Signal module | Proximity probe | Proximity probe | Proximity probe |
| Technology | Eddy current | Eddy current | Eddy current | Eddy current | Eddy current |
| Voltage | 24 V DC | 24 V DC | 24 V DC | 24 V DC | 24 V DC |
| Frequency range | Up to 10 kHz | Up to 10 kHz | Up to 10 kHz | Up to 10 kHz | Up to 10 kHz |
| Measurement range | 2–5 mm | 2–5 mm | 2–5 mm | 2–5 mm | 2–5 mm |
| Accuracy | ±0.5% FS | ±0.5% FS | ±0.5% FS | ±0.5% FS | ±0.5% FS |
| Dimensions | 80×120×35 mm | 110×160×50 mm | 85×130×35 mm | 85×130×35 mm | 85×130×35 mm |
| Weight (kg) | 0.18 kg | 1.9 kg | 0.95 kg | 0.95 kg | 0.95 kg |
9.3 Five Popular Models (Same Product Family)
| Parameter | 330901-01-90-10-02-05 | 330905-01-90-10-02-00 | 330909-01-90-10-02-05 | 330910-01-90-10-02-00 | 330930-01-90-10-02-00 |
|---|---|---|---|---|---|
| Product type | Proximity probe | Signal conditioner | High sensitivity probe | Vibration probe | Industrial probe unit |
| Technology | Eddy current | Eddy current | Eddy current | Eddy current | Eddy current |
| Voltage | 24 V DC | 24 V DC | 24 V DC | 24 V DC | 24 V DC |
| Frequency response | Up to 10 kHz | Up to 10 kHz | Up to 10 kHz | Up to 10 kHz | Up to 10 kHz |
| Measurement range | 5 mm | 5 mm | 7 mm | 5 mm | 5 mm |
| Accuracy | ±0.5% FS | ±0.5% FS | ±0.25% FS | ±0.5% FS | ±0.5% FS |
| Dimensions | 90×140×40 mm | 120×180×60 mm | 100×160×50 mm | 90×140×40 mm | 90×140×40 mm |
| Weight (kg) | 1.8 kg | 2.5 kg | 2.1 kg | 1.7 kg | 1.5 kg |
10. Summary
The 330851-01-000-020-90-01-05 is a compact NSv eddy current proximity probe designed for small shaft vibration and displacement monitoring. It offers high precision, stable long-term performance, and strong environmental resistance, making it suitable for modern industrial machinery protection systems.