Bently Nevada 330102 3300 XL 8 mm Proximity Probe

Configured for shaft displacement measurement in a Bently Nevada 3300 monitoring system, the Bently Nevada 330102-00-40-05-02-00 (330102 3300 XL 8 mm Proximity Probe) provides a 3/8-24 UNF threaded, armored probe assembly with a 0.5 meter cable and miniature coaxial ClickLoc connector.

Hardware Specifications

Eddy-Current Measurement and Gap Voltage

The 330102 belongs to the 3300 XL 8 mm proximity probe family and uses an eddy-current sensing principle for non-contact shaft displacement measurement. The probe interfaces with the associated proximity monitoring electronics, which provide the excitation and signal conditioning required for displacement measurement.

During commissioning, technicians should verify probe gap and signal output against the applicable Bently Nevada monitoring channel requirements. A typical eddy-current installation uses a negative DC gap voltage, with approximately -10 VDC commonly used as a reference target during system setup. The actual commissioning value should follow the installed monitor and system documentation.

The armored construction provides mechanical protection around the probe assembly. Furthermore, the miniature coaxial ClickLoc connection maintains the intended probe-to-extension-cable interface without changing the specified probe configuration.

Frequently Asked Questions

Q: What mechanical interface does the 330102-00-40-05-02-00 use?
A: The probe uses a 3/8-24 UNF thread and has an armored construction. The specified minimum unthreaded length is 0.0 in.

Q: What cable and connector configuration does this model provide?
A: This configuration provides a 0.5 meter (1.6 feet) total system length with a miniature coaxial ClickLoc connector and standard cable.

Q: Does the probe require a separate power connection?
A: No. The proximity probe itself does not use a separate power supply connection. Associated monitoring electronics provide the required excitation and signal conditioning.

Field Installation Guidelines

• Confirm the probe model, thread specification, and mechanical target before installation.
• Install the 3/8-24 UNF threaded body without applying mechanical force to the cable or connector.
• Maintain the specified probe orientation and target clearance defined by the monitoring system documentation.
• Route the coaxial cable separately from high-current power conductors where practical to reduce electrical interference.
• Avoid sharp bends, excessive pulling force, and mechanical stress at the ClickLoc connector.
• Verify cable and connector engagement before commissioning the monitoring channel.
• Validate the probe gap voltage and signal response after mechanical installation.
• Use the monitoring system manufacturer's wiring and grounding instructions for shield termination.
• Inspect the armored section and connector assembly for mechanical damage before energizing the measurement channel.