330980-72-05 Bently Nevada 3300 XL NSv Proximitor Sensor

Product Introduction

• The 330980-72-05 is a high-precision signal conditioner designed for the 3300 XL NSv transducer system.
• Engineered for "Narrow Space" (NSv) applications, it converts probe-to-target gaps into accurate voltage signals for vibration and position monitoring.
• This Proximitor Sensor features a compact footprint, allowing for high-density DIN-rail mounting or traditional panel installations.
• Technical personnel should download the 3300 XL NSv series manual to verify calibration curves and installation clearances.

Configuration Hierarchy

• 330980 [Series: 3300 XL NSv Proximitor Sensor]
  • └── -72 [Total System Length: 7.0 Meters (23.0 Feet)]
    • └── [Mounting: Standard Panel/DIN-rail, No Hardware]
      • └── -05 [Agency Approvals: Multiple Worldwide Certifications]

Technical Parameters & Performance

• Brand: Bently Nevada
• Model: 330980-72-05
• Series: 3300 XL NSv
• Input Requirements: Accepts one 3300 RAM or 3300 NSv Proximity Probe and Extension Cable.
• Power Supply: Requires -17.5 Vdc to -26 Vdc (12 mA maximum consumption).
• Output Impedance: 50 Ω (Optimized for 10 kΩ load).
• Operating Temperature: -52°C to +100°C (-62°F to +212°F).
• Supply Sensitivity: Less than 2 mV change in output per volt change in input.
• Humidity Resistance: 100% condensing, non-submersible (IEC 68-2-3 damp heat tested).
• Housing Material: A380 Aluminum, providing robust shielding and heat dissipation.

Global PLC Spare HUB's Insight

• The 330980-72-05 solves critical measurement issues in confined spaces where standard 8mm probes experience side-viewing interference.
• Engineering teams value the NSv series for its tight magnetic field, which allows for accurate sensing near machine sidewalls.
• The SpringLoc terminal strips require no special tools, ensuring faster field wiring and resistance to vibration-induced loosening.
• With the -05 multiple approval option, this 330980 model is the ideal universal spare for global fleets.

Device Compatibility & Applications

• Target Machinery: Centrifugal compressors, small steam turbines, and radial aero-derivative turbines.
• Application Scenarios: Monitoring shafts smaller than 50 mm (2 inches) or thrust bearing housings with restricted internal space.
• Diagnostic Capabilities: Real-time tracking of Radial Vibration, Axial Thrust Position, and Phase Reference (Keyphasor).
• Integration: Seamlessly interfaces with Bently Nevada 3500/42M and 2300 series monitors.

Shipping & Quality Terms

• Lead Time: Guaranteed dispatch within 24-48 hours.
• Courier Logistics: Global express delivery via FedEx, UPS, and DHL.
• Warranty Period: Includes a comprehensive 12-month quality guarantee.

Professional FAQ

• Why must the 330980-72-05 be used strictly with a 7.0m system?
  The Proximitor is internally tuned to the electrical length of the cable; mixing with 5m or 9m components will cause severe scale factor errors.
• What happens if the supply voltage is more positive than -23.5 Vdc?
  When using safety barriers, a lower supply voltage can restrict the linear range of the sensor, clipping peak vibration data.
• Is special shielding required to meet CE RFI/EMI standards?
  No, the 3300 XL NSv series features improved internal immunity, allowing for standard mounting without additional RFI considerations.
• Can I use this sensor with a target material other than 4140 steel?
  Standard calibration assumes AISI 4140 steel. Using other alloys will shift the output voltage and require custom field calibration.
• How do the SpringLoc terminals handle extreme vibration?
  They provide constant spring tension that outperforms traditional screw terminals, preventing intermittent signal loss during machine operation.

Selection Guide

• Ensure the total electrical length of your probe and extension cable matches the -72 (7.0m) specification.
• For hazardous area installations, the -05 option is the safest choice to ensure compliance with local ATEX/CSA/IECEx regulations.
• Prioritize the 330980 NSv series when the probe must be installed in a counterbore or near a narrow shoulder.
• Verify that the monitoring rack's power supply meets the -17.5 to -26 Vdc requirement to ensure full linear range performance.

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