



Introduction
The Bently Nevada 330901-00-12-70-02-00 3300 NSv Proximity Probe is a precision non-contact sensing device designed for vibration and shaft position measurement in rotating machinery. As part of the advanced 3300 NSv transducer system, it delivers highly stable eddy-current-based monitoring performance for turbines, compressors, pumps, and other critical assets.
Engineered for tight installation spaces and harsh industrial environments, this probe is widely used in machinery protection systems where accurate displacement measurement directly supports equipment safety, predictive maintenance, and operational continuity.
Technical Specifications
| Parameter | Details |
|---|
| Manufacturer | Bently Nevada |
| Model | 330901-00-12-70-02-00 |
| Series | 3300 NSv Proximity Probe |
| Measurement Principle | Eddy current (non-contact) |
| System Compatibility | 3300 NSv probe + extension cable + proximitor sensor |
| Total Cable Length | 7.0 m |
| Case Length Option | 1.2 in (12 code) |
| Unthreaded Length | 0.0 in |
| Connector Type | Miniature coaxial ClickLoc connector |
| Probe Body Material | Stainless steel (industrial grade) |
| Cable Type | 75 Ω coaxial, FEP insulated |
| Operating Temperature | -40°C to +177°C (system dependent) |
| Environmental Protection | Industrial sealing for harsh environments |
| Weight | ~0.5 kg (approx., depending on configuration) |
Applications
The 330901-00-12-70-02-00 is widely used in high-value rotating equipment monitoring applications, including:
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Steam and gas turbine vibration monitoring
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Centrifugal compressor shaft displacement measurement
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Industrial pump condition monitoring
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Gearbox and drivetrain alignment systems
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Power generation machinery protection systems
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Oil & gas rotating equipment diagnostics
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Predictive maintenance and condition monitoring platforms
Its accuracy and stability make it a core component in API 670-compliant protection architectures.
Advantages
This NSv proximity probe is engineered for long-term industrial reliability rather than short-term sensing alone:
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High-precision eddy current sensing for stable displacement measurement
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Designed for tight installation spaces with narrow side-view geometry
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Strong EMI resistance for electrically noisy industrial environments
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Robust stainless-steel construction for mechanical durability
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Long-distance 7 m signal stability with minimal degradation
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ClickLoc connector system ensuring secure vibration-resistant connection
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Compatible with 3300 NSv ecosystem for calibrated system accuracy
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Field-proven reliability in critical rotating machinery protection
It is commonly selected where downtime risk is high and measurement accuracy is directly tied to asset protection.
Technical FAQs
Q1: What is the main function of this probe?
A: It measures shaft vibration and displacement using eddy current technology.
Q2: What system does it belong to?
A: The Bently Nevada 3300 NSv proximity transducer system.
Q3: What is the total cable length?
A: 7.0 meters.
Q4: Is it a contact or non-contact sensor?
A: It is a non-contact proximity probe.
Q5: What machines is it used on?
A: Turbines, compressors, pumps, and rotating industrial machinery.
Q6: What is the operating temperature range?
A: Typically up to -40°C to +177°C depending on configuration.
Q7: What connector type does it use?
A: Miniature coaxial ClickLoc connector.
Q8: Can it be used alone?
A: No, it requires a matching NSv extension cable and proximitor sensor.
Q9: Is it suitable for harsh environments?
A: Yes, it is designed for high vibration, heat, and industrial conditions.
Q10: Is it interchangeable with 3300 XL probes?
A: No, NSv components must be used within their own matched system.