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The Bently Nevada 330104-00-08-50-02-00, also cataloged as the 330104 Proximity Probe, operates as a dedicated hardware component for non-contacting shaft displacement tracking within 3300 XL Machinery Protection System platforms. The sensor establishes high-frequency eddy-current paths against a target surface to capture mechanical alterations, transmitting real-time physical position data over an integrated coaxial transmission line to an external matching Proximitor module.

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
50 Total Length 5.0 meters (16.4 feet)
02 Connector and Cable Type ClickLoc miniature coaxial connector, standard cable
00 Agency Approval Not required

Hardware Specifications

Parameter Specification
Model 330104-00-08-50-02-00
Brand Bently Nevada
Origin U.S.A.
Probe Diameter 8 mm
Mounting Thread M10 x 1 (Metric)
Case Material AISI 303/304 Stainless Steel
Linear Measurement Range 2.0 mm (80 mils)
Standard Sensitivity 7.87 V/mm (200 mV/mil)
Operating Temp -51 to +177 deg C
Power Consumption Passive hardware element (driven by external Proximitor excitation loop)
Dimensions 80 mm overall case length, 5.0 meters total cable length
Weight Less than 1.0 kg nominal

Eddy-Current Probe Scaling

The 330104-00-08-50-02-00 maintains an optimized eddy-current probe scaling profile calibrated for standard AISI 4140 steel targets. The interaction between the 8 mm tip and the target generates a linear scale factor output of 7.87 V/mm (200 mV/mil) over the specified 2.0 mm operational span. Any variance in the electrical conductivity or magnetic permeability of the target metallurgy will shift the nominal voltage response, corrupting the feedback loop during evaluation of absolute rotor dynamics unless a dedicated calibration modification is applied directly at the transmitter level.

Frequently Asked Questions

Q: Can this 5.0-meter total length probe assembly be connected into a system loop using an intermediate extension cable?

A: No. Transducer calibration requires an exact electrical length match. This 5.0-meter probe must connect directly to a 5.0-meter Proximitor Sensor without any extension cables to prevent impedance mismatching and signal degradation.

Q: Is this specific probe model rated for installation within hazardous areas?

A: No. The option 00 designation specifies that no hazardous area approvals are certified for this hardware block. It must only be deployed within configurations that do not require explosive protection ratings.

Field Installation Guidelines

  • Mounting Thread Torque Limits: While inserting the 80 mm metric case into the machine port, limit mechanical torque on the M10 x 1 thread to 33.9 N-m (300 in-lb) to avoid casing fracture or deformation.
  • Coaxial Core Protection: Route the 5.0-meter standard integrated lead path with a minimum mechanical bend radius of 25.4 mm (1.0 inch) to preserve internal copper insulation layers.
  • Electrical Ground Segregation: Ensure that the outer conductor sleeve of the ClickLoc miniature coaxial connector joint remains completely isolated from the machine casing ground to block potential ground loops.

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