BENTLY 330780-90-00 Proximity Transducer System

Product Description

BENTLY NEVADA 330780-90-00 is a 3300 XL 11 mm Proximity Transducer System (Proximitor® Sensor System) used for non-contact vibration and position measurement of rotating machinery. It is designed to measure shaft displacement, radial vibration, and axial position in critical rotating equipment.

The system uses an eddy current proximity measurement principle and consists of a 3300 XL 11 mm Proximitor Sensor, extension cable, and proximity probe. It provides an output voltage proportional to the distance between the probe tip and the conductive shaft surface.

Specifications

• Brand: BENTLY NEVADA
• Model: 330780-90-00
• Product Type: Proximity Transducer System / Proximitor Sensor
• Series: 3300 XL 11 mm
• Measurement Type: Non-contact shaft displacement & vibration measurement
• Probe Diameter: 11 mm
• System Length: 9.0 m (29.5 ft)
• Mounting Option: Panel Mount
• Agency Approval: Standard (No approval option)
• Linear Range: Approx. 2 mm (80 mils)
• Output Sensitivity: 3.94 V/mm (100 mV/mil)
• Frequency Response: 0 Hz to 10 kHz
• Power Supply: -17.5 to -26 VDC (typical -24 VDC)
• Operating Temperature:
  • Probe: approximately -51°C to +177°C
  • Sensor: approximately -35°C to +85°C
• Mounting Thread: 3/8-24 UNF
• Weight: Approx. 0.25 kg

Advantages & Features

• Non-contact measurement prevents mechanical wear
• Provides accurate shaft vibration and position monitoring
• High-frequency response for dynamic vibration measurement
• Compatible with Bently Nevada machinery protection systems
• 9-meter integrated system length simplifies installation
• Designed for critical rotating equipment monitoring
• High reliability in harsh industrial environments

Applications

• Steam turbine vibration monitoring
• Gas turbine protection systems
• Compressor condition monitoring
• Generator shaft displacement measurement
• Pumps and motors monitoring
• Bearing vibration analysis
• Machinery protection systems

Notes

• 330780-90-00 is a Proximitor Sensor System, not a simple proximity switch
• It requires a compatible Bently Nevada monitoring system (such as 3300/3500 series systems depending on configuration)
• Confirm probe size, cable length, and mounting type before replacement
• Proper probe gap adjustment is required for accurate measurement
• Commonly used in API 670 compliant machinery protection applications