Configured for high-precision vibration and position monitoring in 3300 System architectures, the Bently Nevada 330101-00-16-05-02-05 (330101 Proximity Probe) provides direct physical signal transduction for rotating machinery. This 8 mm proximity probe utilizes eddy-current technology to output voltage signals proportional to the distance between the sensor tip and the conductive target surface.

Suffix Breakdown and Configuration Matrix

• Part Number: 330101-00-16-05-02-05

• Probe Type: 3300 XL 8 mm

• Unthreaded Length: 00 - 0.0 in

• Case Length: 16 - 1.6 in

• Total Length: 05 - 0.5 m (1.6 ft)

• Connector: 02 - Miniature coaxial ClickLoc connector

• Agency Approval: 05 - CSA, ATEX, IECEx Approvals

Hardware Specifications

Mechanical Monitoring and Transducer Dynamics

The 330101 transducer relies on specific eddy-current probe scaling calibrated for AISI 4140 steel targets. Accurate rotor dynamics analysis requires rigorous gap voltage validation to ensure the signal maintains a -10 VDC target at the linear range center. Field deployment necessitates strict adherence to cross-talk suppression protocols, requiring a minimum of 1.5 inches (38 mm) separation between adjacent probe tips. Failure to maintain these spatial constraints can result in signal interference and measurement inaccuracies during high-frequency vibration data acquisition.

Ordering Info

• 1 330101 3300 XL 8 mm Proximity Probe

• 1 Threaded mounting nut

Field Installation Guidelines

• Environmental Sealing: Ensure the ClickLoc connector is properly mated and protected in environments where chemical or liquid exposure is possible.

• Mechanical Securing: Torque the 3/8-24 UNF threads carefully to ensure stable probe positioning against vibrational forces.

• Clearance Requirements: Observe the minimum side-view clearance of 1.5 inches (38 mm) from any metallic housing walls to prevent localized eddy-current interference.

• System Integration: Verify probe compatibility with the system-specific extension cable and Proximitor sensor revision to ensure full interchangeability.

Frequently Asked Questions

• Why is agency approval (CSA, ATEX, IECEx) specified for this model?

  This model includes hazardous area certifications, allowing for installation in environments where explosive atmospheres may exist, provided appropriate safety barriers are used.

• Can I shorten the probe cable in the field?

  No. The 3300 XL system is a calibrated unit. Altering the cable length changes the impedance, which invalidates the calibration and degrades signal linearity.

• What is the linear range for this probe?

  The 3300 XL 8 mm system provides a linear range of 80 mils (2 mm), starting from an initial gap of approximately 10 mils.

• Does this probe require shielding?

  The probe is unarmored (3/8-24 UNF thread, without armor). It should be installed within a protective conduit if exposed to mechanical damage or heavy debris.

• How is the probe output signal measured?

  The probe is a passive device; the output is measured as an AC signal processed by the connected Proximitor sensor, which translates gap changes to voltage.

• What happens if the gap voltage is not -10 VDC?

  A gap voltage outside the target range indicates the probe is either too close or too far from the shaft, potentially operating outside the linear measurement zone.

• Can I use this with any target material?

  Factory calibration is tuned for AISI 4140 steel. Other materials alter the electrical response; if used, the system requires non-standard field calibration.

• Is this probe compatible with previous 3300 series components?

  While the 3300 XL is an improvement, component interchangeability with older legacy 3300 systems is limited. Always verify the Proximitor sensor series for compatibility.