Configured for displacement and vibration monitoring in 3300 System platforms, the Bently Nevada 330102-00-18-90-02-00 (330102 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: 330102-00-18-90-02-00

• Probe Type: 3300 XL 8 mm (1/4-28 UNF thread, without armor)

• Unthreaded Length: 00 - 0.0 in

• Case Length: 18 - 1.8 in

• Total Length: 90 - 9.0 m (29.5 ft)

• Connector: 02 - Miniature coaxial ClickLoc connector

• Agency Approval: 00 - Not required

Hardware Specifications

Mechanical Monitoring and Transducer Dynamics

The 330102 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 330102 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.

• Cable Routing: Given the 9.0 meter length, ensure the coaxial cable is routed to minimize strain on the ClickLoc connector and prevent sharp bends.

Frequently Asked Questions

• Why does this model use 1/4-28 UNF threads?

  The 330102 probe series is designed with a 1/4-28 UNF thread, distinct from the 3/8-24 thread used in 330101 models, to accommodate specific mounting hole requirements.

• Can I use this probe in a hazardous environment?

  This specific part number (Agency Approval 00) is not certified for hazardous area use. Use only in non-classified environments.

• What is the impact of the 9.0 meter cable length on signal integrity?

  The 3300 XL system is impedance-matched for specific lengths. Using the provided 9.0 meter assembly ensures signal characteristics remain within specified tolerances.

• How do I calibrate the probe?

  The system is factory-calibrated. No field calibration is required; simply confirm the output voltage correlates to the target gap during the initial setup.

• Can I connect this to any Proximitor sensor?

  It must be connected to a 3300 XL 8 mm Proximitor sensor compatible with the specific cable length and probe type.

• What is the maximum operating temperature?

  The probe is rated for continuous operation at -51 deg C to +177 deg C.

• Is the probe tip fragile?

  The probe tip is composed of high-grade plastic (polyphenylene sulfide) and should be handled with care to prevent impact damage.

• How do I detect if the coaxial cable is damaged?

  Damage to the coaxial cable often results in intermittent signal loss or a permanent shift in the gap voltage (DC offset) compared to expected values.