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Bently Nevada 330380-90-00 3300 XL 16mm High Temperature Proximitor Sensor

Bently Nevada 330380-90-00 3300 XL 16mm High Temperature Proximitor Sensor

The Bently Nevada 330380-90-00 is a 3300 XL 16mm High Temperature Proximitor Sensor designed for non-contacting proximity measurements in extreme environments. As part of the 3300 XL High Temperature Proximity...

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SKU: 330380-90-00
Vendor: Bently Nevada
Category: Proximity Sensor

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The Bently Nevada 330380-90-00 is a 3300 XL 16mm High Temperature Proximitor Sensor designed for non-contacting proximity measurements in extreme environments. As part of the 3300 XL High Temperature Proximity System (HTPS), this sensor is engineered to convert the physical distance (gap) between a probe and a target into a proportional 3.94 V/mm (100 mV/mil) voltage signal, facilitating critical machine protection and diagnostic monitoring.

Features

  • Designed for continuous operation in extreme environments with probe tip ratings up to +350 degC (+662 degF).
  • 4 mm (160 mils) linear measurement range suitable for hot-section machine monitoring.
  • Hermetically-sealed ceramic probe tip provides robust protection against moisture and contaminants.
  • Compatible with standard Bently Nevada monitoring and diagnostic equipment.
  • Integrated hardline cable assembly for reliable signal transmission through high-temperature zones.

Applications

  • Steam turbines and large-scale power generation equipment.
  • Large centrifugal compressors and gas turbine drive pump sets.
  • Heavy-duty rotor equipment in steel and paper mills.
  • Hydroelectric generating units for axial trajectory and deflection monitoring.
  • Mode shape analysis for turbine R&D and troubleshooting.

Technical Specifications

Model 330380-90-00
System Length 9 meters
Probe Tip Material Ceramic
Signal Output 3.94 V/mm (100 mV/mil)
Linear Range 4 mm (160 mils)
Output Resistance 50 Ohm
Probe Case Torque 81 N.m (720 in.lb)
Operating Temp (Proximitor) -51 degC to +100 degC

Installation Guidelines

  • Ensure the probe is mounted securely using the specified torque to prevent vibration-induced measurement errors.
  • Route hardline cables carefully to avoid exceeding minimum bend radii, especially near high-temperature zones.
  • Maintain proper grounding practices for the Proximitor sensor housing to minimize EMI/RFI interference.
  • Verify that the total system length (probe + extension cable) matches the calibration requirements of the monitoring system.
  • Always power down the monitoring system before connecting or disconnecting the sensor to prevent electrical damage.

FAQ

What is the primary function of the 330380-90-00?

It is a proximity sensor used to measure vibration, thrust position, and differential expansion in hot areas of rotating machinery, converting gap distance into a proportional voltage signal.

What is the total system length for this model?

The 330380-90-00 is configured for a total system length of 9 meters.

Does this sensor require armor?

This specific model is provided without armor; armored versions are typically handled as custom configurations.