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The Bently Nevada 330909-00-99-10-02-00, also cataloged as the 3300 NSv Proximity Probes, operates as a dedicated hardware component for non-contact shaft displacement and vibration measurement within 3300 NSv Proximity Transducer System platforms.

Suffix Breakdown & Model Matrix

The part number sequence defines the specific mechanical case option, cable length, termination hardware, and regulatory approvals for this probe:

  • 330909: Base Model for 3300 NSv Probe (3/8-24 UNF thread with stainless steel armor)
  • 00: Unthreaded Length option - 0.0 in
  • 99: Case Length option - 9.9 in
  • 10: Total Length option - 1.0 metre (3.25 feet)
  • 02: Connector Option - Miniature coaxial ClickLoc connector, standard cable
  • 00: Agency Approval Option - Not required

Hardware Specifications

Parameter Specification
Model 330909-00-99-10-02-00
Brand Bently Nevada
Origin USA
Weight 0.82 kg (Shipping weight: 2.0 kg)
Dimensions 3/8-24 UNF thread, 9.9 in case length, 0.0 in unthreaded length
Operating Temp -51 to 177 deg C
Power Consumption Passive transducer element powered by connected Proximitor Sensor loop
Thread Type 3/8-24 UNF thread with flexible armor
Total Cable Length 1.0 metre (3.25 feet)
Connector Type Miniature coaxial ClickLoc connector
Agency Approval Option 00 (Not required)

Rotor Dynamics & Gap Voltage Validation

The 3300 NSv proximity probe emits a high-frequency RF field to detect small shaft motions without physical contact, providing accurate observations for rotor dynamics analysis on small-diameter shafts or in tight counterbores. System setup requires gap voltage validation across the Proximitor terminals under non-rotating conditions. Adjusting probe insertion depth to achieve a baseline target of -10 VDC places the sensor output in the center of its linear range. Focused coil geometry provides cross-talk suppression when multiple probes are installed in dense bearing configurations.

Frequently Asked Questions

Q: What structural benefit does the 9.9 in case length provide?

A: The extended 9.9 in threaded probe housing allows deep penetration through thick outer machine casings or deep mounting brackets where shorter probe bodies cannot reach the shaft surface.

Q: How does the ClickLoc connector maintain mechanical coupling under machine vibration?

A: The miniature coaxial ClickLoc connector features a positive latching snap lock mechanism that prevents accidental disconnection or signal chatter caused by structural vibration.

Field Installation Guidelines

  1. Mechanical Mounting: Carefully thread the 3/8-24 UNF probe body into the internal mounting port from outside or inside the machine casing.
  2. Gap Adjustments: Monitor the Proximitor Sensor DC gap voltage output with a digital multimeter and adjust the probe position until reaching -10 VDC.
  3. Locking Assembly: Secure the outer lock nut against the mounting wall to hold the probe setting firmly against machinery vibration.
  4. Connector Connection: Join the miniature coaxial ClickLoc connector to the extension cable until fully latched, ensuring the connection remains clean and protected from oil exposure.

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