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Bently Nevada 330101-05-20-10-02-05 Probe Body: Stainless Steel

  • Brand: Bently Nevada
  • Model Number: 330101-05-20-10-02-05
  • Origin: USA
  • Condition: New 100%
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  • Warranty: 1 Year
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Introduction
330101-05-20-10-02-05 is a high-precision industrial eddy-current displacement sensing probe specifically engineered for ultra-accurate monitoring of micro-axial and radial displacements in heavy-duty rotating machinery. By leveraging mature eddy-current sensing technology, this probe achieves non-contact capture of subtle position changes (down to sub-micrometer resolution) of metal shafts or components—even in harsh industrial environments plagued by extreme temperatures, high electromagnetic interference, oil contamination, and intense vibration.
The "-05-20-10-02-05" suffix in its model number reflects targeted optimization: it balances a 20 mm extended measurement range with a compact form factor, making it ideal for installations where both large displacement coverage and space efficiency are required (e.g., multi-stage turbine bearing housings, large-diameter pump shafts). Constructed from corrosion-resistant stainless steel with IP68 protection, the probe ensures long-term stable operation in demanding sectors like power generation, petrochemical processing, and steel manufacturing. It is fully compatible with mainstream signal conditioners (e.g., 3300 XL series) and monitoring platforms (including 3500-series systems), serving as a core component for early diagnosis of mechanical faults such as shaft misalignment, bearing wear, and rotor imbalance. By enabling real-time tracking of critical displacement parameters, it effectively extends the service life of high-value equipment and minimizes unplanned downtime across energy, manufacturing, and marine industries.
Technical Specifications
Parameter
Details
Model Number
330101-05-20-10-02-05
Length (Probe Body)
115 mm
Diameter (Probe Body)
20 mm
Cable Length
10 m (Standard); Custom Lengths (5 m/15 m/20 m) Optional
Net Weight (Probe + Cable)
0.7 kg
Operating Temperature Range
-55°C to 150°C
Rated Supply Voltage
Powered via Compatible Signal Conditioner (18–30 V DC)
Sensing Technology
Eddy-Current (Non-Contact); Probe Coil: High-Purity Oxygen-Free Copper (Ceramic-Coated for Insulation)
Measurement Range (Displacement)
Axial/Radial: 0–20 mm (Peak-to-Peak)
Measurement Accuracy
±0.01 mm (Full Range); ±0.004 mm (Within 50% of Optimal Range)
Resolution
0.0004 mm (0.4 μm)
Output Signal
Raw Voltage Signal (-4 V to +4 V DC); Requires Signal Conditioner for Standardized Output (4–20 mA/0–10 V)
Sensing Target Compatibility
Ferromagnetic Metals (Carbon Steel, Cast Iron, Nickel-Chromium Alloys); Non-Ferromagnetic Metals (Aluminum, Copper, Titanium) with Custom Calibration
Sensing Distance (Optimal Gap)
10 mm (Probe-Target); Fine-Tunable via Signal Conditioner Trim Pot
Frequency Response
0–15 kHz
Material
Probe Body: Stainless Steel (316L, Polished Surface to Reduce Dust Accumulation); Cable: Oil-Resistant, Flame-Retardant PVC (UL94 V-0); Connector: Nickel-Plated Brass (Waterproof Design)
Protection Level
IP68
Operating Humidity
0%–99% (Condensing Resistant)
Vibration Resistance
5–3000 Hz, 32 G (Peak)
Shock Resistance
55 G (Peak, 8 ms Duration)
Noise Level
≤4 mV (RMS) at Full Scale Output
Mounting Type
Threaded Mount (M16×1.5); Optional Flange Mount Adapter (for Horizontal Shaft Installations)
Compatibility
Signal Conditioners: 3300 XL, 16710 Series; Monitoring Systems: 3500-Series, Bently Nevada 1701; PLC/DCS: Siemens S7-1500, Emerson DeltaV, ABB 800xA
Certification
CE (EN 61326-1), UL (UL 61010-1), IECEx (Zone 1/2 for Hazardous Areas), ATEX (II 2G Ex d IIC T6 Ga)
Application Scenarios
  1. Power Plant Multi-Stage Steam Turbine Rotor Monitoring: Installed in multi-stage steam turbine rotor systems of thermal and nuclear power plants to track axial thrust displacement (up to 20 mm) and radial runout across different bearing stages. Its extended measurement range accommodates thermal expansion-induced rotor movements, while the 0.4 μm resolution captures subtle displacement changes caused by inter-stage seal wear or rotor imbalance. Integration with 3500-series monitoring systems provides early warnings for potential shaft collision with stationary components, ensuring continuous power generation and avoiding costly turbine overhauls.

  1. Petrochemical Large-Diameter Centrifugal Pump Shaft Monitoring: Deployed in large-diameter centrifugal pumps (used for crude oil or chemical fluid transfer) to monitor radial displacement of the impeller shaft. The probe’s IP68 protection and IECEx Zone 1 certification withstand high-pressure, flammable fluid environments, while the oil-resistant cable resists degradation from lubricating oil and chemical spills. It detects displacement anomalies caused by impeller cavitation or mechanical seal wear, preventing pump breakdowns that could disrupt refinery or chemical plant operations.

  1. Steel Mill Blast Furnace Tuyere Shaft Monitoring: Utilized in blast furnace tuyere shaft systems to measure radial displacement and axial thermal expansion (up to 20 mm). The probe’s high-temperature resistance (150°C) adapts to the hot industrial environment near the furnace, while its 316L body resists corrosion from iron oxide dust and molten slag splatter. When paired with a 3300 XL signal conditioner, it converts raw voltage signals to 4–20 mA outputs for transmission to the mill’s DCS (e.g., Siemens T3000), enabling dynamic adjustment of tuyere position to maintain stable blast airflow and optimize iron production efficiency.

  1. Marine Main Propulsion Shaft Thrust Bearing Monitoring: Applied in main propulsion shaft thrust bearing systems of large container ships and LNG carriers to monitor thrust pad axial displacement. The 10 m standard cable accommodates long shaft tunnel installations, while the corrosion-resistant 316L body resists saltwater humidity and marine corrosion. The probe’s shock resistance (55 G peak) withstands rough sea conditions, detecting displacement changes caused by thrust bearing wear or propeller load fluctuations—ensuring reliable propulsion and reducing the risk of emergency at-sea repairs.

  1. Mining Ball Mill Trunnion Bearing Monitoring: Mounted on trunnion bearing systems of large mining ball mills to monitor radial displacement. Its compact 20 mm diameter fits into limited space near the mill shell, while the IP68 protection prevents dust and ore slurry ingress. The 0–20 mm measurement range covers trunnion displacement caused by bearing clearance degradation or mill shell misalignment, triggering scheduled maintenance to avoid unplanned mill shutdowns and maintain continuous mineral grinding.

  1. Aerospace Industrial Gas Turbine Test Bench Rotor Monitoring: Installed in industrial gas turbine test benches (used for power generation or marine propulsion) to monitor rotor axial displacement during performance testing. Its 0–15 kHz frequency response captures dynamic displacement changes during turbine startup, shutdown, and high-load operation, providing precise data for validating rotor dynamic stability. Compatibility with DAQ systems (e.g., NI PXI) meets aerospace industry standards for test accuracy and repeatability.

  1. Water Treatment Plant Large-Diameter Sewage Pump Shaft Monitoring: Integrated into large-diameter sewage pump shafts of municipal water treatment plants to monitor axial displacement of mechanical seals and radial runout of the impeller. The probe’s non-contact design avoids wear on pump components, while the low noise level (≤4 mV RMS) ensures accurate readings in noisy pump rooms. It detects seal wear-induced displacement or impeller imbalance, alerting operators to potential leakage risks and preventing environmental contamination from untreated sewage.


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Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales

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  • Bulk order enjoys Friendship discount (2 pieces or more can be applied)
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7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)

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Company Information
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