Bently Nevada 330180-50-00 Proximity probe

Bently Nevada 330180-50-00 Overview

The Bently Nevada 330180-50-00 is a proximity probe system designed for industrial machinery monitoring and protection. It is part of Bently Nevada’s 3300 series, widely used in critical rotating equipment (e.g., turbines, compressors, pumps) to measure vibration, axial position, and speed. This system helps detect mechanical faults, prevent unplanned downtime, and ensure operational safety.

Key Technical Specifications

1. Sensor Type:
   • Eddy Current Displacement Probe (non-contact measurement).
   • Includes a probe, extension cable, and preconfigured driver (proximitor).
2. Measurement Range:
   • Typical linear range: 0 to 2 mm (0 to 80 mils).
   • Frequency response: 0 to 10 kHz (suitable for detecting high-frequency vibrations).
3. Operating Parameters:
   • Supply Voltage: Typically -18 to -26 VDC (required for the proximitor).
   • Output Signal: 4–20 mA or voltage proportional to displacement.
   • Sensitivity: Standard sensitivity is 200 mV/mil (7.87 V/mm).
4. Environmental Ratings:
   • Temperature Range:
     • Probe: -40°C to +150°C (-40°F to +302°F).
     • Extension Cable: -40°C to +150°C.
     • Proximitor: -40°C to +85°C.
   • Housing Material: Stainless steel (probe) and high-temperature-resistant insulation (cable).
5. Compliance:
   • Meets ATEX/IECEx standards for hazardous environments (if specified).
   • Certifications: CE, RoHS.

Primary Functions

1. Vibration Monitoring:
   • Measures shaft vibration in real-time to detect imbalances, misalignment, or bearing wear.
   • Provides early warning of mechanical faults.
2. Axial Position Measurement:
   • Monitors thrust displacement in turbines or compressors to prevent catastrophic failure.
3. Speed and Phase Reference:
   • Can integrate with Keyphasor® modules for RPM measurement and phase analysis.
4. Integration with Control Systems:
   • Compatible with Bently Nevada’s 3500/System 1 or third-party PLCs/SCADA systems for data analysis and alarms.

Installation and Usage

1. Probe Installation:

• Mount the probe perpendicular to the rotating shaft surface at a specified gap (typically 1.0–1.5 mm or as per manufacturer guidelines).
• Ensure the target surface is smooth, clean, and free from coatings or irregularities.

2. Cable Connection:

• Use the shielded extension cable to connect the probe to the proximitor.
• Avoid sharp bends or proximity to high-voltage cables to reduce noise interference.

3. Proximitor Setup:

• Power the proximitor with the required DC voltage (-18 to -26 VDC).
• Calibrate the output signal (4–20 mA or voltage) to match the measurement range.

4. Calibration:

• Use a TK-3 Calibrator or similar tool to verify probe sensitivity and linearity.
• Adjust the gap voltage (e.g., -10 VDC at 1.0 mm gap) during setup.

5. System Integration:

• Connect the proximitor’s output to a monitoring system (e.g., Bently Nevada 3500 rack).
• Configure alarm thresholds (e.g., 100 µm for warning, 150 µm for danger).

Applications

• Power Generation: Gas/steam turbines, generators.
• Oil & Gas: Centrifugal compressors, pumps.
• Industrial: Fans, gearboxes, motors.

Maintenance Tips

• Regularly inspect probe and cable integrity for physical damage or insulation cracks.
• Clean probe tips during shutdowns to remove oil or debris.
• Verify calibration annually or after equipment overhauls.