Configured for displacement and vibration monitoring in 3300 System platforms, the Bently Nevada 330101-32-57-05-01-05 (330101 Proximity Probe) provides direct physical signal transduction for rotating machinery analysis. The transducer utilizes eddy-current induction to convert target surface proximity into linear voltage signals.

Suffix Breakdown and Configuration Matrix

• Part Number: 330101-32-57-05-01-05

• Probe Type: 3300 XL 8 mm

• Thread Type: 32 (3/8-24 UNF thread, with armor)

• Case Length: 57 (5.7 in)

• Total Length: 05 (0.5 m)

• Connector: 01 (Miniature coaxial ClickLoc connector)

• Agency Approval: 05 (CSA, ATEX, IECEx)

Hardware Specifications

Mechanical Monitoring and Transducer Dynamics

The 330101 transducer system employs eddy-current probe scaling tuned for AISI 4140 steel targets. To ensure valid output, technicians must perform gap voltage validation, targeting -10 VDC at the linear range center. Accurate rotor dynamics measurement requires strict cross-talk suppression by maintaining a minimum 1.5 inch (38 mm) side-view clearance from the probe tip. Installations must ensure consistent shielding to minimize noise during signal transmission from the transducer to the Proximitor sensor.

Ordering Info

• 1 330101 3300 XL 8 mm Proximity Probe

• 1 Threaded mounting nut

Field Installation Guidelines

• Mounting: Secure the probe into the machine casing to achieve the required mechanical gap.

• Proximity Spacing: Maintain a 1.5 inch (38 mm) separation between probe tips for radial measurements.

• Target Material: Ensure target surface is AISI 4140 steel for factory-calibrated linearity.

• Armor Management: When using the armored variant, ensure the armor is properly terminated to prevent grounding issues or mechanical fatigue at the connector junction.

Frequently Asked Questions

• Can this probe be used in high-temperature environments?

  The probe is rated for operation up to 177 deg C, provided the temperature remains within the specifications for the internal potting and cabling materials.

• Is the armor required for all installations?

  Armor is recommended for environments where mechanical impact or heavy debris poses a risk to the integrity of the coaxial cable.

• Does this probe support direct replacement of older 3300 series probes?

  The 3300 XL series is designed to be compatible with 3300 XL Proximitor sensors; check compatibility with existing Proximitor hardware before deployment.

• What is the purpose of the 0.5 meter cable length?

  Short cable lengths are typically utilized in high-density installations where space for excess cabling is limited.

• Can I calibrate the probe on-site?

  The system is pre-calibrated. Field calibration is not recommended as it may deviate from the factory-verified sensitivity settings.

• How do I identify a signal ground fault?

  A ground fault often manifests as excessive electrical noise or an erratic gap voltage reading that deviates from the -10 VDC target.

• Is the connector waterproof?

  The ClickLoc connector is ingress-protected against dust and incidental moisture but is not rated for permanent submersion in liquids.

• What happens if the probe tip contacts the shaft?

  Contact will lead to sensor damage or false data; ensure that the mechanical gap is always greater than the minimum physical clearance required.