Product Description

The BENTLY 125760-01 is a Proximity Transducer System (Eddy Current Probe) designed for high-precision displacement and vibration measurements in rotating machinery. It consists of a proximity probe, extension cable, and proximity driver (also known as a conditioner), forming a complete system for monitoring shaft position, vibration, and eccentricity. This system is widely used in industries where machinery reliability and safety are critical, such as power generation, oil & gas, and petrochemicals.

Product Parameters

• Model: 125760-01
• Brand: Bently Nevada
• Series: 3300 Series Proximity Transducer System
• Components Included:
  • Proximity Probe: 8 mm diameter (standard size for industrial applications).
  • Extension Cable: Typically 5 meters (custom lengths available).
  • Proximity Driver (Conditioner): Provides excitation voltage and signal conditioning.
• Measurement Range:
  • Linear Range: 2 mm (0.080 inches) nominal, with a usable range of ±1 mm (±0.040 inches).
  • Gap Voltage: -2 VDC to -18 VDC (corresponds to probe-to-target distance).
• Sensitivity:
  • Nominal Sensitivity: 7.87 V/mm (200 mV/mil).
• Frequency Response:
  • 0–10 kHz: Flat response for accurate vibration measurements.
• Temperature Range:
  • Operating: -34°C to +121°C (-30°F to +250°F).
  • Storage: -54°C to +177°C (-65°F to +350°F).
• Cable Type:
  • Probe Cable: Coaxial, shielded, and armored for durability.
  • Extension Cable: Low-noise, shielded, and compatible with the probe.
• Approvals: Meets industrial standards for EMC, safety, and environmental compliance (e.g., ATEX, IECEx for hazardous locations).

Product Specifications

• Mounting: The probe is typically mounted in a probe housing or bracket, ensuring alignment with the rotating shaft.
• Target Material: Best performance with conductive materials (e.g., steel).
• Minimum Target Diameter: 15.24 mm (0.6 inches) to avoid edge effects.
• Output Signal: Analog voltage proportional to the probe-to-target distance.
• Power Requirements: The proximity driver requires 24 VDC power supply.
• Calibration: Factory-calibrated for plug-and-play operation, but field-calibration is possible if needed.

Series

• 3300 Series Proximity Transducer System: A trusted solution for high-precision displacement and vibration monitoring in industrial rotating machinery.

Features

1. High Accuracy: Provides precise measurements of shaft position and vibration.
2. Wide Temperature Range: Suitable for extreme industrial environments.
3. Robust Design: Armored cables and shielded connections ensure reliability in harsh conditions.
4. Easy Integration: Compatible with Bently Nevada’s 3500 Series and other monitoring systems.
5. Factory Calibration: Reduces installation and setup time.

Function

• Displacement Monitoring: Measures the absolute position of the rotating shaft relative to the probe.
• Vibration Monitoring: Detects shaft vibration and eccentricity, which are critical for machinery health.
• Protective Alarming: Triggers alarms when shaft displacement or vibration exceeds predefined thresholds.

Purpose

• Ensures the safe and reliable operation of rotating machinery by providing real-time monitoring of shaft position and vibration.
• Prevents catastrophic failures by detecting early signs of misalignment, imbalance, or bearing wear.

Applications

1. Power Generation: Turbine shaft vibration and position monitoring.
2. Oil & Gas: Compressor and pump shaft health monitoring.
3. Petrochemicals: Monitoring of critical rotating equipment in refineries.
4. Metallurgy & Mining: Fan, blower, and mill shaft monitoring.
5. Marine Engineering: Propulsion system shaft monitoring.
6. Aerospace: Testing and monitoring of rotating components in engines and turbines.

BENTLY 125760-01

BENTLY 125760-01