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The Bently Nevada 330104-00-07-10-02-00 serves as the primary 330104 Proximity Probe utilized to execute non-contacting displacement measurements across 3300 XL Machinery Protection System platforms. The probe measures static distance variations and dynamic structural oscillations by establishing a high-frequency radio frequency field against a moving conductive target, routing raw impedance modifications along its coaxial transmission line to an external matching 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
07 Overall Case Length 70 mm
10 Total Length 1.0 meter (3.3 feet)
02 Connector and Cable-Type Miniature coaxial ClickLoc connector with standard cable
00 Agency Approval Not required

Hardware Specifications

Parameter Specification
Model 330104-00-07-10-02-00
Brand Bently Nevada
Origin U.S.A.
Probe Tip Diameter 8 mm
Thread Selection M10 x 1 metric thread
Cable Impedance 75 Ohm nominal
Operating Temp -51 to +177 deg C
Power Consumption Passive hardware component (driven by Proximitor excitation loop)
Dimensions 70 mm overall case length, 1.0 meter total cable length
Weight Less than 1.0 kg nominal

Gap Voltage Validation (-10 VDC Targets)

Field integration of the 330104-00-07-10-02-00 proximity probe requires strict execution of gap voltage validation to ensure accurate rotor dynamics tracking. During manual mounting within the M10 x 1 thread interfaces, field technicians must fine-tune the mechanical distance relative to the shaft target until the steady-state DC output voltage across the Proximitor Sensor test points reads exactly -10 VDC. This baseline setup aligns the sensor within the electrical midpoint of its 2.0 mm (80 mils) linear calibration span, optimizing signal accuracy and supporting successful cross-talk suppression in high-density multi-channel probe installations.

Frequently Asked Questions

Q: Can this 1.0-meter total length probe be wired directly to an instrument rack without an extension cable?

A: No. The transducer system requires a precise total electrical length match (typically 5.0 meters or 9.0 meters) to maintain loop tuning. A 1.0-meter probe must be combined with an appropriate 4.0-meter or 8.0-meter extension cable to connect to the Proximitor Sensor.

Q: Is this 3300 XL probe backwards compatible with older 7200 series monitoring hardware?

A: While physical mounting dimensions may allow installation, the internal electrical properties of the 3300 XL probe are optimized to generate a 7.87 V/mm (200 mV/mil) scale factor when combined with a matching 3300 XL Proximitor. Mixing mismatched components will degrade linear range performance.

Field Installation Guidelines

  • Torque Rating Interlocks: When fastening the 70 mm fully threaded metric housing into the machine port, do not exceed the structural limit of 33.9 N-m (300 in-lb) to prevent distortion of the inductive coil shell.
  • Cable Handling & Routing Restrictions: Protect the 75 Ohm standard coaxial cable lead from sharp field edges. Maintain a minimum mechanical bend radius of 25.4 mm (1.0 inch) across the entire run to prevent conductor degradation.
  • Shield Grounding Protocols: The outer shield of the ClickLoc miniature coaxial line must maintain complete isolation from the machine case ground. System grounding must be managed strictly at the instrument monitor enclosure terminal.

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