Bently Nevada 330103-00-03-50-02-00 3300 XL 8 mm Proximity Probe

Configured for displacement measurement in rotating machinery, the Bently Nevada 330103-00-03-50-02-00 (330103-00-03-50-02-00 8 mm Proximity Probe) provides direct physical signal transduction for proximity monitoring.

Hardware Specifications

Eddy-Current Probe Scaling and Rotor Dynamics

The 330103-00-03-50-02-00 utilizes an 8 mm probe tip, which is calibrated to a standard scale factor of 7.87 V/mm (200 mV/mil). During installation, the gap voltage must be validated against the -10 VDC target midpoint to ensure linear operation within the probe's specified range. Proper gap adjustment is critical for accurate observation of rotor dynamics, including shaft centerline positioning and vibration magnitude. The system design ensures consistent performance across its 5.0 metre cable length, maintaining signal integrity and suppressing potential electromagnetic interference (EMI) that could affect proximity signal accuracy.

Frequently Asked Questions

Q: Is the probe tip pressure-tested against differential pressure?

A: No. While the probe includes a Viton O-ring seal to contain differential pressure, these units are not pressure-tested before shipment. For high-pressure sealing requirements, consult the custom design department.

Q: Can the cable length be shortened in the field?

A: No. The system is calibrated as a matched set (probe, extension cable, and Proximitor sensor). Field-modifying the 5.0 metre cable will alter the electrical impedance and introduce significant errors in the displacement measurement output.

Field Installation Guidelines

• Mounting: Ensure the probe is mounted in a rigid bracket to prevent mechanical resonance. Use appropriate locknuts to secure the probe position relative to the target surface.
• Grounding: The probe case is electrically conductive. Ensure the installation bracket is properly grounded to the machinery housing to maintain EMI immunity.
• Connector Integrity: Use the ClickLoc connector mechanism to ensure a vibration-proof connection. Clean both connector faces with high-purity electrical contact cleaner prior to mating to prevent signal attenuation.
• Gap Setting: Verify the gap voltage with a digital multimeter (DVM). Rotate the shaft to ensure the target area is free from nicks or scratches that could create false vibration signals.