The Bently Nevada 330103-00-11-50-02-00, 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 systems.

Model Suffix Configuration

The part number defines specific mechanical and electrical parameters:

• 330103: 8 mm Proximity Probe, 3/8-24 UNF thread

• 00: Unthreaded length

• 11: Case length (110 mm)

• 50: Total length (5.0 meters)

• 02: Connector type (Miniature coaxial ClickLoc)

• 00: Agency approval (Standard)

Hardware Technical Specifications

TSI Rotor Dynamics and Signal Validation

This probe utilizes eddy-current sensing to detect shaft displacement. Proper system function requires gap voltage validation, where the target operational setpoint is -10 VDC at the center of the probe linear range. When evaluating rotor dynamics, the probe must be scaled correctly within the monitor software to reflect the 200 mV/mil output. To maintain data fidelity, cross-talk suppression must be addressed by ensuring adequate separation between multiple probes, preventing frequency interference from neighboring electromagnetic fields during high-speed shaft operation.

Ordering Info

• 1 x 330103-00-11-50-02-00 8 mm Proximity Probe

• 2 x Mounting nuts (3/8-24 UNF)

• 1 x Connector protector

• 1 x Technical documentation package

Installation Guidelines

• Surface Preparation: Clean the mounting location and ensure the shaft surface target has a 0.8 micrometer finish or better.

• Torque Application: Apply a maximum torque of 6.8 N m (60 in-lb) when securing the mounting nuts to avoid housing stress.

• Cabling: Maintain the factory-specified 5.0 meter cable length, as it is integral to the system resonant frequency calibration.

• Conduit Routing: Enclose cables in grounded metallic conduit to prevent signal noise from external electrical sources.

Frequently Asked Questions

• Can this probe be cut to a different length? No, the probe and cable are a single impedance-matched assembly; altering length disrupts system calibration.

• How is the probe tip protected during installation? The included connector protector prevents debris ingress during the insertion process.

• What happens if the probe is over-torqued? Excessive torque can distort the probe body and affect the internal coil geometry, leading to non-linear outputs.

• Can I use this with any 3300 XL Proximitor? The Proximitor must be configured for 8 mm probes to ensure the correct voltage-to-distance transfer function.

• How do I identify a damaged coil? An open or short circuit will result in a monitor "Not OK" status, typically indicated by a voltage at the power supply limit.

• Is the probe tip chemical resistant? Yes, the Ryton tip is compatible with most turbine and compressor lubricating oils.

• Why is the -10 VDC target critical? It places the probe at the linear center, providing maximum range for both positive and negative vibration peaks.

• Can I replace the cable separately? The 330103 is a probe-and-cable assembly; the cable cannot be detached from the probe head.