Excellent PLC
Product Introduction
The Bently Nevada 330905-05-10-10-12-CN 3300 NSv Proximity Probe is a high-performance eddy-current proximity sensor designed for precise rotor displacement and vibration measurements in industrial machinery. Engineered for reliability and accuracy, it is commonly used in critical rotating equipment monitoring such as turbines, compressors, pumps, and generators. The probe converts shaft displacement into a measurable electrical signal that can be processed by condition monitoring systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Probe Type | 3300 NSv Proximity Probe |
| Sensing Method | Eddy-current |
| Probe Diameter | 12 mm |
| Tip Material | Non-magnetic stainless steel |
| Cable Type | Shielded coaxial |
| Total Length | 1 m |
| Weight | 0.15 kg |
| Operating Temperature | -40°C to +120°C |
| Measurement Range | 0–1.27 mm |
| Linearity | ±1% of full scale |
| Frequency Response | 0–10 kHz |
| Insulation Resistance | >100 MΩ at 50 VDC |
| Maximum Voltage | 30 VDC |
| Connector Type | MS-style or customer specified |
| Environmental Protection | IP65 |
Applications
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Shaft displacement measurement in turbines, generators, compressors, and pumps
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Vibration monitoring and rotor health analysis
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Integration with condition monitoring and machinery protection systems
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Early detection of misalignment, imbalance, or rubbing in rotating equipment
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Industrial plants including power generation, petrochemical, oil & gas, and mining
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Supporting predictive maintenance programs to reduce unplanned downtime
Advantages
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High Accuracy: Provides precise displacement and vibration data, supporting reliable machinery diagnostics.
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Robust Construction: Durable in harsh industrial environments, resistant to vibration, temperature extremes, and electrical interference.
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Wide Compatibility: Works with all standard 3300 XL and NSv monitoring systems.
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Long Cable Options: Can be customized for remote installations while maintaining signal integrity.
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Fast Response: High frequency response allows detection of fast dynamic events in rotating machinery.
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Reduced Downtime: Enables predictive maintenance, reducing unplanned outages and maintenance costs.
FAQ
Q1: How does the 3300 NSv probe convert shaft movement to electrical signals?
A1: It uses the eddy-current principle where a conductive target influences the probe coil’s impedance, producing a voltage signal proportional to displacement.
Q2: What is the maximum cable length for reliable signal transmission?
A2: The standard probe can reliably transmit signals up to 30 meters using shielded coaxial cable without signal degradation.
Q3: Can the probe operate in high electromagnetic interference environments?
A3: Yes, the coaxial shielding and robust design minimize interference from nearby electrical equipment.
Q4: Is the probe compatible with 3300 XL monitors?
A4: Yes, the 3300 NSv series is fully compatible with both 3300 XL and NSv monitoring systems.
Q5: What is the frequency response of the probe?
A5: The probe supports 0–10 kHz, suitable for most vibration and shaft monitoring applications.
Q6: How does temperature affect probe performance?
A6: The probe operates within -40°C to +120°C; performance remains linear within this range.
Q7: What type of targets can the probe detect?
A7: Conductive metal targets such as turbine or generator shafts. Non-metallic materials cannot be detected.
Q8: How is the probe grounded to avoid noise?
A8: The shielded coaxial cable is grounded at the monitoring system end, providing a stable reference and reducing noise.
Q9: Can the probe detect axial and radial movements?
A9: The probe measures displacement along the probe axis; multiple probes are typically arranged to detect both radial and axial motion.
Q10: Is the probe affected by lubrication or oil films?
A10: No, thin non-conductive films such as oil do not affect eddy-current measurement performance.
Recommended 6 Same-Series or Related Models
| Model | Diameter | Cable Length | Tip Material | Notes |
|---|---|---|---|---|
| 330905-05-10-10-01 | 12 mm | 1 m | Stainless Steel | Standard NSv |
| 330905-05-10-10-05 | 12 mm | 2 m | Stainless Steel | Extended cable |
| 330905-05-12-10-12 | 12 mm | 1 m | Stainless Steel | High-temp version |
| 330905-05-08-10-12 | 8 mm | 1 m | Stainless Steel | Small diameter tip |
| 330905-05-14-10-12 | 14 mm | 1 m | Stainless Steel | Large diameter tip |
| 330905-05-10-15-12 | 12 mm | 1.5 m | Stainless Steel | Medium cable extension |
6 Popular Bently Nevada Models
| Model | Type | Application | Notes |
|---|---|---|---|
| 3300 XL | Proximity Probe | Industrial rotor monitoring | Standard NSv predecessor |
| 3300 XL Proximity Sensor | Sensor | Turbine and compressor monitoring | Widely used in power plants |
| 3300 XL Vibration Monitor | Monitor | Rotating machinery | Compatible with NSv series |
| 3300 XL Keyphasor | Tachometer | Shaft speed detection | Works with NSv probes |
| 3300 XL Proximitor | Signal Converter | Shaft displacement measurement | Converts probe signals for processing |
| 3300 XL Remote Probe | Probe | Extended cable applications | Supports remote monitoring |
