Bently Nevada 330101-00-50-05-02-00 3300 XL 8 mm Proximity Probe

The Bently Nevada 330101-00-50-05-02-00, also cataloged as the 330101 3300 XL 8 mm Proximity Probe, operates as a dedicated hardware component for non-contact shaft displacement measurement within Bently Nevada 3300 XL transducer systems. The probe generates an eddy-current field and produces a signal proportional to the distance between the probe tip and conductive machine surfaces for vibration, position, and rotor dynamic monitoring applications.

Suffix Breakdown & Model Matrix

• 330101 = 3300 XL 8 mm Proximity Probe

• 00 = 0.0 in unthreaded length (fully threaded probe)

• 50 = 5.0 in overall case length

• 05 = 0.5 m integral cable length

• 02 = Miniature coaxial ClickLoc connector without armor configuration

• 00 = Standard version without additional agency approval option

Hardware Specifications

Eddy-Current Probe Scaling and Gap Voltage Validation

The 330101-00-50-05-02-00 functions as the sensing element of a calibrated 3300 XL transducer system. When used together with a compatible 3300 XL extension cable and Proximitor sensor, the probe provides a linear measurement range of 2.0 mm for shaft displacement monitoring.

Commissioning procedures typically include probe scaling verification and gap voltage validation. Proper gap adjustment ensures operation within the calibrated linear region and helps maintain the specified incremental scale factor of 7.87 V/mm. In machinery protection systems, verification of probe positioning is commonly performed before vibration, thrust position, or rotor dynamic measurements are placed in service.

The triaxial cable construction and ClickLoc connector design assist in minimizing signal degradation, connector loosening, and cross-talk effects in high-vibration environments.

Frequently Asked Questions

Q: Can the probe be operated without a Proximitor sensor?
A: No. The probe is designed to operate as part of a complete 3300 XL transducer system consisting of a probe, extension cable, and compatible Proximitor sensor.

Q: What is the calibrated linear measurement range?
A: The specified linear range is 2.0 mm (80 mils).

Q: What material is used for factory calibration?
A: The probe is factory calibrated using an AISI 4140 steel target material.

Field Installation Guidelines

• Verify probe gap before final tightening.

• Maintain separation from high-energy power cables.

• Avoid excessive bending of the triaxial cable.

• Confirm ClickLoc connector engagement before startup.

• Validate probe gap voltage during commissioning.