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Configured for high-precision shaft displacement and vibration measurement in compact mechanical spaces, the Bently Nevada 330908-12-31-10-02-00 (3300 XL NSv Position Sensor) provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

The part number 330908-12-31-10-02-00 defines the specific physical and mechanical build of the proximity probe:

  • 330908: Base Model for 3300 XL NSv Proximity Probe
  • 12: Unthreaded Case Length option - 12 mm
  • 31: Overall Case Length option - 31 mm
  • 10: Total Cable Length option - 1.0 meter
  • 02: Connector Option - Miniature Coaxial ClickLoc connector with integrated protective armor
  • 00: Agency Approval Option - Standard (No specialized agency approvals required)

Hardware Specifications

Parameter Specification
Model 330908-12-31-10-02-00
Brand Bently Nevada
Origin USA
Weight 0.15 kg
Dimensions 12 mm unthreaded length, 31 mm overall case length
Operating Temp -51 to 177 deg C
Power Consumption Passive transducer element powered by connected Proximitor Sensor loop
System Series 3300 XL NSv Proximity Transducer System
Linear Range 1.0 mm (40 mils)
Probe Tip Material Polyphenylene Sulfide (PPS)
Housing Material AISI 303 Stainless Steel
Total Cable Length 1.0 meter
Connector Type Miniature Coaxial ClickLoc connector

Eddy-Current Probe Scaling & Gap Voltage Validation

The 3300 XL NSv probe operates on the eddy-current sensing principle, projecting a focused electromagnetic field to detect small displacements on target shafts without physical contact. Specialized coil geometry allows accurate measurement on small-diameter target shafts without side-view interference. During field setup, gap voltage validation requires monitoring the Proximitor Sensor output and adjusting probe positioning until a nominal baseline target of -10 VDC is established. Proper radial spacing and mounting alignment prevent cross-talk suppression issues in tightly packed bearing housings.

Frequently Asked Questions

Q: How does the 3300 XL NSv probe avoid side-view interference on small shafts?

A: The probe tip coil geometry restricts the electromagnetic field spread, maintaining linear output scaling on reduced target areas and small shafts under 51 mm in diameter.

Q: What precautions should be taken with the miniature coaxial ClickLoc connector during installation?

A: Ensure the miniature coaxial ClickLoc connector fully latches into place and that the integrated protective armor is correctly positioned over the junction to shield the high-frequency signal path from mechanical strain and debris.

Field Installation Guidelines

  1. Mechanical Mounting: Thread the AISI 303 stainless steel probe body into the mounting port, ensuring the 12 mm unthreaded length aligns with the housing clearance.
  2. Gap Voltage Setting: Adjust the physical position of the probe tip relative to the target surface while reading the DC output voltage across the Proximitor Sensor until the -10 VDC gap voltage target is attained.
  3. Connector Latching: Mate the miniature coaxial ClickLoc connector to the extension cable until locked, ensuring the protective armor covers the mated connection.
  4. Cable Routing: Secure the 1.0-meter cable lead in dedicated conduit, ensuring bend radii do not exceed 25.4 mm (1.0 inch) to protect internal coaxial conductors.

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