The Bently Nevada 330102-00-20-10-01-05, also cataloged as the 3300 XL 8 mm Proximity Probe, operates as a dedicated hardware component for non-contacting vibration and position measurement within rotating machinery monitoring networks.

Model Configuration Matrix

The specific part number reflects the physical and environmental construction of the probe assembly:

• 330102: 8 mm Proximity Probe, 3/8-24 UNF thread

• 00: Unthreaded length

• 20: Overall case length (200 mm)

• 10: Total cable length (1.0 meter)

• 01: Connector type (Miniature coaxial ClickLoc connector)

• 05: Agency approval option

Technical Hardware Specifications

Mechanical Monitoring and Signal Validation

System integrity relies on precise eddy-current probe scaling and calibration. The probe must be paired with a matching 3300 XL Proximitor sensor to achieve a nominal gap voltage of -10 VDC at the center of its linear range. Maintaining rotor dynamics accuracy requires that the probe tip is installed at the correct distance from the shaft target. Cross-talk suppression is managed by ensuring that multiple probes installed in close proximity are separated according to manufacturer guidelines to avoid mutual interference and signal distortion.

Ordering Info

• 1 x 330102-00-20-10-01-05 8 mm Proximity Probe

• 2 x 3/8-24 UNF lock nuts

• 1 x Connector protector

• 1 x Technical installation documentation

Field Installation Guidelines

• Pre-installation: Verify that the mounting hole is free of burrs and the target surface finish meets requirements.

• Mechanical Torque: Tighten the mounting nuts to a maximum torque of 6.8 N m (60 in-lb) to prevent deformation of the probe body.

• Cable Management: Route the coaxial cable through rigid metallic conduit and avoid sharp bends that exceed the minimum radius of 30 mm.

• Shielding: Ensure the cable shield is terminated at the monitor rack to maintain a continuous ground path and prevent ground loops.

Frequently Asked Questions

• Can this probe be used without a Proximitor sensor? No, the probe is a passive transducer and requires a calibrated Proximitor for signal conditioning.

• What is the consequence of exceeding the linear range? Operating outside the 2.0 mm range causes non-linear output, rendering vibration and position data inaccurate.

• Is the probe tip replaceable? The probe is a hermetically sealed, non-repairable assembly.

• Can I shorten the 1.0 meter cable? No, the system is impedance-matched at the factory; changing the cable length will invalidate the signal output.

• What signifies a short circuit in the cable? A reading of 0 VDC at the monitor terminal block usually indicates a short in the coaxial cable.

• Can this probe withstand high pressure? It is designed for ambient air and machine oil environments; verify thread sealant use for high-pressure oil applications.

• Is the probe sensitive to temperature? The sensitivity is relatively stable, but extreme temperatures may cause minor shifts in the gap voltage.

• How do I prevent signal noise? Use dedicated conduits and ensure all connectors are tightened and protected from moisture ingress.