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The Bently Nevada 330104-00-08-05-02-00, also cataloged as the 330104 Proximity Probe, operates as a dedicated hardware component for mechanical displacement tracking within 3300 XL Machinery Protection System platforms. The probe measures static distance variations and dynamic oscillations by introducing a high-frequency eddy-current field against a moving conductive shaft target, routing raw impedance changes through its integral armored coaxial cable to an external Proximitor Sensor.

Suffix Breakdown & Model Matrix

Code Option Category Technical Configuration
330104 Base Model 3300 XL 8 mm Proximity Probe (M10 x 1 Metric Thread)
00 Unthreaded Length 0 mm
08 Overall Case Length 80 mm
05 Total Length 0.5 meters (1.6 feet)
02 Connector and Cable-Type Miniature coaxial ClickLoc connector, standard cable with armor
00 Agency Approval Not required

Hardware Specifications

Parameter Specification
Model 330104-00-08-05-02-00
Brand Bently Nevada
Origin U.S.A.
Probe Tip Material Polyphenylene sulfide (PPS)
Probe Case Material AISI 303 or 304 stainless steel (SST)
Differential Pressure Seal Viton O-ring between probe tip and case (not factory pressure tested)
Power Consumption Passive hardware element (energized via external Proximitor loop)
Dimensions 80 mm overall case length, 0.5 meters total probe length
Weight 2 kg shipping weight

Eddy-Current Probe Scaling

The 330104-00-08-05-02-00 fulfills standard eddy-current probe scaling configurations calibrated for AISI 4140 steel targets. When energized by the matching 3300 XL Proximitor Sensor, it provides a linear scale factor output of 7.87 V/mm (200 mV/mil). Variations in the target material chemistry or surface micro-structure directly impact the magnetic permeability and electrical conductivity, altering the calibrated scaling curves. For non-4140 target applications, custom calibration curves must be managed via monitor configuration software or matching Proximitor variants to prevent inaccuracies in capturing absolute rotor dynamics.

Frequently Asked Questions

Q: Can this 0.5-meter probe be wired into a standard 9.0-meter system configuration?

A: No. Transducer components must match the precise electrical length calibrated to the Proximitor Sensor. This 0.5-meter probe is designed to achieve a 5.0-meter total loop length when combined with a specific 4.5-meter extension cable. Pair it only with a 5.0-meter Proximitor.

Q: How does the integrated armor option alter the physical handling of the coaxial cable during deployment?

A: The flexible stainless steel armor provides physical defense against cutting and crushing forces within the machine housing. However, it increases the stiffness of the outer jacket assembly and requires care to maintain minimum bend radius rules during installation.

Field Installation Guidelines

  • Mounting Thread Torque Limits: When fastening the 80 mm case into the metric bracket, limit mechanical torque on the M10 x 1 thread to 33.9 N-m (300 in-lb) to avoid casing fracture or deformation.
  • Armor Bend Radius Restrictions: Do not route the armored cable assembly through sharp right angles. Maintain a minimum physical bend radius of 25.4 mm (1.0 inch) along the execution path to protect internal conductors.
  • Noise and Ground Isolation: Keep the outer ClickLoc miniature coaxial connector joint insulated from any surrounding conductive structure or metal conduits. Grounding paths must be isolated from the machine case and referenced solely at the monitoring rack.

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