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The Bently Nevada 330104-00-24-10-02-00 serves as the primary 330104 Proximity Probe utilized to execute non-contacting displacement and vibration measurements across 3300 XL Proximity Transducer System platforms.

Suffix Breakdown & Model Matrix

  • 330104: Base model number for 3300 XL 8 mm proximity probe with M10 x 1 threaded case.
  • -00: Unthreaded Length Option (00 = 0 mm).
  • -24: Overall Case Length Option (24 = 240 mm).
  • -10: Total Length Option (10 = 1.0 meter / 3.3 feet).
  • -02: Connector and Cable Type Option (02 = Miniature coaxial ClickLoc connector with standard cable).
  • -00: Agency Approval Option (00 = Not required).

Hardware Specifications

Parameter Specification
Model 330104-00-24-10-02-00
Brand Bently Nevada
Origin U.S.A.
Weight 0.103 kg
Dimensions 8 mm probe tip diameter, 240 mm case length, 1.0 meter total length
Operating Temp -40 deg C to +85 deg C
Power Consumption Sourced via external Proximitor Sensor loop
Voltage Rating 30 VDC maximum
Current Rating 10 mA maximum
Cable Diameter 5 mm
Protection Class IP67
Frequency Response 10 Hz to 10 kHz
Sensitivity 100 mV/g (integrated transducer configuration baseline)
Dynamic Range 0.1 g to 100 g
Mounting Type M10 x 1 Thread

Eddy-Current Probe Scaling and Gap Voltage Validation

The 330104-00-24-10-02-00 probe utilizes a high-frequency RF field to complete eddy-current probe scaling against a conductive shaft target. Operating with a matched 3300 XL Proximitor Sensor, the complete circuit translates physical distance variations into a linear proportional electrical output. Field setup requires strict gap voltage validation to position the sensor tip within the calibrated measurement envelope. Technicians adjust the mechanical penetration depth until the static gap voltage matches the -10 VDC targets, designating the center of the linear calibration range. This accurate spacing prevents signal clipping during dynamic rotor dynamics shifts, while the integrated shield structure ensures high cross-talk suppression between orthogonal X-Y radial monitoring pairs.

Frequently Asked Questions

Q: What are the electrical consequences of routing the probe cable close to high-voltage AC motor lines?

A: Close proximity to high-voltage lines introduces electromagnetic interference that disrupts the high-frequency RF carrier wave. This compromises the native cross-talk suppression and distorts the eddy-current probe scaling, adding artificial noise to the vibration output.

Q: Can the ClickLoc coaxial connector be spliced or repaired directly in the field if damaged?

A: No. Field splicing alters the internal capacitance and nominal 50 Ohm impedance of the 5 mm coaxial line. Any impedance modification changes the total electrical length parameters, making the standard -10 VDC targets unachievable and invalidating factory calibration.

Field Installation Guidelines

  1. Mechanical Mounting and Insertion: Inspect the M10 x 1 threaded bore for debris. Thread the probe case into the bracket entry port by hand to avoid cross-threading, ensuring the 8 mm tip does not impact the target surface.
  2. Gap Voltage Calibration: Apply power to the associated Proximitor loop and attach a digital voltmeter across the output terminals. Adjust the probe depth within the mounting bore until the static potential stabilizes at -10 VDC.
  3. Locknut Mechanical Securing: Tighten the mechanical locknut against the casing to lock the vertical positioning. Monitor the voltmeter during this step to verify that the torque application does not cause the gap voltage to shift from the target.
  4. Coaxial Routing Restrictions: Secure the 5 mm standard cable into dedicated, grounded metal conduits. Ensure all bends maintain a minimum static radius of 25.4 mm (1.0 inch) to prevent kinking or internal shield separation.

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