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Product Introduction
The Bently Nevada 330905-08-13-10-12-CN 3300 NSv Proximity Probe is a high-precision, non-contact eddy-current sensor designed for continuous monitoring of shaft vibration, dynamic displacement, and rotor position in critical rotating machinery. As part of the renowned 3300 NSv (Narrow Side-view) series, this probe provides exceptional performance where installation space is limited but accurate vibration detection is essential. Its stainless-steel construction, precise calibration, and advanced shielding ensure reliable operation in harsh industrial environments, making it an ideal solution for predictive maintenance and machine protection programs.
Product Specifications
| Parameter | Description |
|---|---|
| Model Number | 330905-08-13-10-12-CN |
| Series | 3300 NSv Proximity Probes |
| Sensing Principle | Eddy-current, non-contact vibration & displacement |
| Linear Range | 0 to 2 mm (typical) |
| Sensitivity | 7.87 mV/µm (±5%) |
| Frequency Response | DC to 10 kHz (±3 dB) |
| Nominal Gap | 1.0 mm |
| Probe Tip Diameter | 5 mm stainless steel |
| Operating Temperature | −35 °C to +177 °C |
| Pressure Rating | Up to 500 psi |
| Compatible Driver | Bently Nevada 3300 XL Proximitor |
| Extension Cable Type | 330130 or approved NSv cable |
| Total Length | 1 meter |
| Weight | 0.15 kg |
Applications
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Steam and Gas Turbines: Provides real-time shaft vibration and position monitoring to detect rotor instability and imbalance before failures occur.
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Compressors: Tracks bearing wear, surge conditions, and cavitation-related vibrations to prevent costly shutdowns.
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Electric Motors and Generators: Monitors shaft displacement and vibration for improved operational efficiency and longevity.
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Gearboxes: Identifies gear mesh faults and misalignment to enable predictive maintenance scheduling.
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Industrial Pumps: Detects hydraulic instabilities and shaft deflection, ensuring safe operation of process equipment.
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Fans and Blowers: Supplies early warning of imbalance or bearing degradation through continuous vibration analysis.
Advantages
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High Accuracy: Excellent linearity and sensitivity provide precise vibration and displacement measurement.
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Compact Design: Slim 5 mm probe tip facilitates installation in restricted or complex equipment layouts.
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Rugged Construction: Corrosion-resistant stainless-steel housing ensures long-term reliability in harsh industrial environments.
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Wide Temperature Range: Maintains stable operation from −35 °C to +177 °C without performance loss.
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Integrated EMI Protection: Built-in shielding delivers accurate measurements even in high electromagnetic interference zones.
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Seamless System Integration: Fully compatible with Bently Nevada 3300 XL Proximitor sensors and monitoring systems.
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Low Maintenance: Non-contact sensing minimizes wear, reducing downtime and maintenance costs.
FAQ
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How is the 330905-08-13-10-12-CN probe calibrated to maintain measurement accuracy?
Each probe is factory-calibrated using an AISI 4140 steel target to ensure sensitivity and linearity. -
Can this probe operate with different Bently Nevada Proximitor drivers?
Yes, it integrates seamlessly with the 3300 XL Proximitor and approved NSv extension cables. -
What is the maximum vibration frequency range measurable by this probe?
It can detect vibration signals up to 10 kHz within the specified linear range. -
What type of output signal does the probe provide?
The probe produces a voltage proportional to shaft displacement, typically 0–20 V peak-to-peak. -
Is extra electromagnetic shielding necessary in high-noise environments?
No. The probe’s built-in EMI shielding ensures stable performance without additional protection. -
Can this probe be used in pressurized or oil-submerged environments?
Yes, it is rated up to 500 psi and is suitable for submerged or pressurized installations. -
How is accuracy maintained across a wide temperature range?
Stainless-steel construction and internal thermal compensation preserve measurement precision. -
Is it capable of monitoring both radial and axial shaft displacement?
Yes, the installation orientation determines whether radial or axial vibration is monitored. -
What signal conditioning equipment is recommended for optimal performance?
A Bently Nevada 3300 XL Proximitor or equivalent driver provides the necessary power and signal processing. -
Does the length of the extension cable affect calibration or sensitivity?
Yes. Each probe is calibrated for a specific cable length, so matching the correct extension cable is essential.
Recommended Related Models (Same Series or Similar)
| Model | Description |
|---|---|
| 330905-00-12-05-02-05 | NSv probe variant for compact installation requirements |
| 330905-00-16-10-02-05 | NSv probe designed for extended installation environments |
| 330905-00-18-05-02-05 | NSv probe with enhanced vibration measurement stability |
| 330905-00-25-05-01 | NSv probe for narrow-space machinery monitoring |
| 330909-00-05-05-02 | NSv probe offering extended frequency response capability |
| 330904-00-12-05-02-05 | Compact NSv proximity probe for space-limited applications |
Popular Bently Nevada Models
| Model | Description |
|---|---|
| 3300 XL 5 mm | Standard proximity probe for general rotating machinery |
| 3500/42M | Advanced vibration monitoring module |
| 3500/22M | Transient data interface module |
| 3500/40M | Proximitor monitor for displacement and vibration |
| 7200 Series | High-performance proximity probe series |
| 330130-040-00 | Compatible extension cable for proximity probe systems |
