Specific Application

• Radial vibration and axial position measurements on centrifugal air compressors or refrigeration compressors with restricted counterbore clearances.
  Asset condition monitoring on narrow rotating machine shafts smaller than 51 mm (2 inches) where standard 8mm probes face resolution limits.
  Industrial machinery displacement tracking inside tight bearing housings with a mounting profile that requires a custom 8.0-inch extended case length.

System Compatibility and Alternative Models

System Compatibility

• Connects directly to the Bently Nevada 3300 XL NSv Proximitor Sensor like the 330980 module.
  Fully compatible with standard 3300 NSv extension cables when longer overall loop tuning configurations are required.
  Interfaces with legacy 3300 and 3500 series machinery protection racks using appropriate NSv input cards.

Alternative Models & Differences

• 330901-00-80-70-02-00: Standard catalog equivalent series probe with an unarmored configuration but utilizing default catalog option formatting.
  143493-00-080-080-70-05: Features identical physical dimensions and thread configurations but includes multiple hazardous area agency safety certifications.
  330104 Standard 8mm Probe: Offers a broader 2.0 mm linear range but lacks the superior side-view clearance and small-target optimization of the NSv transducer family.

Ordering Information

Installation & Troubleshooting FAQ

Q1: What is the correct linear operating range and calibration gap voltage for setting up this 3300 NSv probe?
A1: The total linear range spans 1.5 mm (60 mils), and the recommended initial field setup gap is 1.0 mm (40 mils), which corresponds to the physical midpoint calibration of the linear curve.
Q2: What is the benefit of the 8.0-inch extended case length on this custom probe assembly?
A2: The extended case length allows field engineers to reach target surfaces through exceptionally deep machine casing walls without requiring separate probe brackets.
Q3: Why are my vibration monitor readings showing severe signal dampening or reduced sensitivity at far gaps?
A3: This occurs when the mounting counterbore or side clearance around the probe head tip is too restricted, causing the high-frequency electromagnetic field to cross-talk or couple with the housing walls.