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The Bently Nevada 330905-06-14-10-02-00, also cataloged as the 330905 Proximity Sensors, operates as a dedicated hardware component for non-contact shaft displacement and dynamic vibration measurement within 3300 XL NSv machinery monitoring platforms. Built for installation in restricted counterbores and small shaft geometries, this probe incorporates an unarmored M10 x 1 threaded stainless steel case with a 60 mm unthreaded section, 140 mm overall case length, and a 1.0 m (39 in) FEP coaxial cable terminated with a ClickLoc connector.

Suffix Breakdown & Model Matrix

Option Code Parameter Designation Selected Configuration
330905 Base Model 3300 XL NSv Probe, M10 x 1 thread, without armor
-06 Unthreaded Length 60 mm
-14 Overall Case Length 140 mm
-10 Total Length Option 1.0 m (39 in)
-02 Connector & Cable Type Miniature coaxial ClickLoc connector, standard cable
-00 Agency Approval Option Not required

Hardware Specifications

Parameter Specification
Model 330905-06-14-10-02-00
Brand Bently Nevada
Origin United States
Weight 0.15 kg
Dimensions M10 x 1 thread profile (140 mm overall case length)
Operating Temp -34 deg C to +177 deg C (-30 deg F to +351 deg F)
Power Consumption Passive transducer (Powered via Proximitor Sensor)
Storage Temp -51 deg C to +177 deg C (-60 deg F to +351 deg F)
Probe Tip Material Polyphenylene sulfide (PPS)
Probe Case Material AISI 304 stainless steel (SST)
Cable Specification 75 Ohm coaxial, fluoroethylene propylene (FEP) insulated
Connector Type Miniature coaxial ClickLoc connector
Agency Approvals Not required (Option 00)

Mechanical Monitoring & TSI Performance

The 330905-06-14-10-02-00 transducer uses calibrated eddy-current probe scaling to measure real-time rotor dynamics on tight shaft targets and narrow side-clearance installations. The RF signal generated by the matching 3300 XL NSv Proximitor Sensor produces a linear output voltage relative to the distance between the PPS probe tip and the conductive shaft surface. Performing gap voltage validation to achieve a target setting of -10 VDC positions the transducer at the midpoint of its calibrated linear range, providing cross-talk suppression and signal integrity across closely spaced monitoring channels.

Frequently Asked Questions

Q: What target gap voltage reading indicates correct physical setup for the 330905 probe?

A: Mechanical thread insertion depth must be set until the output voltage measured at the connected 3300 XL NSv Proximitor Sensor reads -10 VDC, centering the probe in its linear operating span.

Q: Can the 1.0 m probe cable be routed directly to monitor terminal strips without an extension cable?

A: No. The integrated 1.0 m (39 in) FEP coaxial cable must couple via its miniature ClickLoc connector to a matching 3300 NSv extension cable to complete the 5.0 m or 7.0 m tuned system loop length.

Q: What function does the 60 mm unthreaded length (-06 option) serve during installation?

A: The 60 mm unthreaded neck allows the probe body to pass through unthreaded mounting sleeve clearances or thick housing walls without thread galling before engaging the interior M10 x 1 mounting threads.

Field Installation Guidelines

  1. Thread the M10 x 1 stainless steel casing into the mounting port by hand to avoid cross-threading prior to applying final torque.
  2. Ensure a minimum engagement of 5 full threads within the tapped port to maintain physical stability under operational machine vibration.
  3. Route the unarmored FEP coaxial cable through protective conduit, observing minimum bend radii and keeping distance from high-voltage AC lines.
  4. Clean the miniature coaxial ClickLoc connector mating contacts to remove oil or debris before twisting and latching the connector lock.

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