BENTLY NEVADA

1. Bently Nevada: Global leading brand for turbomachinery condition monitoring and protection systems
2. 177230-01-02-05: Complete part number of eddy current probe assembly; suffix segments define probe length, extension cable specification, mounting thread and customized parameters
3. Vibration Probe: Non-contact eddy current probe for shaft vibration and clearance measurement
4. Transducer (Transmitter): Proximitor transducer, conditions raw high-frequency eddy current signals into linear standard DC voltage output
5. Sensor: The complete sensing assembly including probe, extension cable and proximitor

1. Core Product Functions

1. Non-contact Eddy Current Measuring Principle It generates high-frequency alternating magnetic field. Eddy currents are induced on the surface of metal rotating shafts without physical contact. The proximitor converts magnetic field variation into linear voltage signals. The sensor works stably under oil, water vapor and high-temperature conditions.
2. Shaft Radial Vibration and Axial Displacement Acquisition It accurately measures clearance changes between rotating shafts and bearings, outputs continuous analog DC voltage signals to reflect vibration amplitude, axial float and rotor eccentricity of rotary equipment.
3. Signal Conditioning & Conversion Equipped with integrated signal conditioning proximitor, it filters and amplifies original high-frequency eddy current signals, outputs standardized linear DC voltage signals for direct connection to 3500 monitoring racks, PLC and DCS systems.
4. Early Fault Detection for Rotary Units It continuously collects raw rotor vibration data, serving as the core measuring component to identify typical faults such as rotor unbalance, shaft misalignment, oil whirl, bearing deterioration and shaft rub.
5. Stable Long-term Operation Under High Temperature Designed for high-temperature bearing housings of turbomachinery, resistant to oil contamination, supporting 24/7 uninterrupted online measurement.

2. Industrial Applications

1. Compatible Monitoring Systems Perfectly matched with the full series of Bently Nevada 3500 and 1900 machinery protection monitoring racks.
2. Applicable Rotary Equipment Turbo-generators, gas turbines, large process compressors, air blowers, steam turbines and heavy-duty refinery turbomachinery.
3. Key Monitoring Purposes

• Measure rotor radial vibration continuously, trigger alarms and unit interlock shutdown once vibration exceeds threshold limits;
• Monitor axial shaft displacement to avoid rotor-to-bearing rubbing and impact damage;
• Detect rotor eccentricity for unit start-stop monitoring and rotor dynamic balance calibration;
• Capture original vibration waveforms to support equipment fault diagnosis and predictive maintenance;
• Can be combined with intrinsically safe barriers for installation in explosion hazardous areas of power and chemical plants.

4. Applicable Industries & Scenarios Thermal power plants, gas power stations, petroleum refineries, coal chemical plants, oil & gas compressor stations and workshops with critical large rotary machinery in metallurgical industry.

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