Configured for non-contact shaft vibration and position monitoring in 3300 XL systems, the Bently Nevada 330101-05-30-10-02-00 (330101 Proximity Probe) provides direct physical/electrical execution of gap-to-voltage signal conversion.

Model Suffix Breakdown

The 330101 series represents the standard 8 mm probe configuration with a 3/8-24 thread. The part number configuration is:

• 05: Unthreaded length (0.5 inches).

• 30: Overall case length (3.0 inches).

• 10: Total cable length (1.0 meter).

• 02: Connector option (Miniature coaxial ClickLoc).

• 00: Agency approval (None).

Hardware Specifications

Mechanical Monitoring & TSI Technical Attributes

Accurate rotor dynamics monitoring depends on strict eddy-current probe scaling. This system is factory-calibrated for AISI 4140 steel; any deviation from this target material requires specific sensitivity correction. During installation, gap voltage validation at -10 VDC is mandatory to ensure linear signal response. To maintain measurement integrity, engineers must enforce adequate counterbore clearance to facilitate cross-talk suppression and prevent signal interference from adjacent machine components in high-density transducer arrays.

Ordering info

• 1 x 330101-05-30-10-02-00 Proximity Probe

• 1 x 3/8-24 stainless steel lock nut

• 1 x Connector protective boot set

Field Installation Guidelines

• Mechanical Torque:

  Mounting nuts must be tightened to a maximum of 13.5 N·m (120 in-lb). Exceeding this limit will compromise the thread integrity of the probe housing.

• Coaxial Routing:

  Run cables through grounded rigid metal conduits to provide electromagnetic shielding against external interference and ground loops.

• Connector Engagement:

  Manually seat the ClickLoc connector until an audible click is heard; do not use pliers, as excessive pressure can damage the internal contacts.

• Thermal Constraints:

  Verify that the probe mounting location remains within the specified -51 deg C to +177 deg C operating envelope to prevent degradation of the internal insulation.

Frequently Asked Questions

• Is this probe compatible with standard 3300 XL Proximitor sensors?

  Yes. The 330101 transducer is designed for seamless integration with 3300 XL Proximitor units without requiring custom system recalibration.

• How is the probe linear range defined?

  The probe maintains a linear range of 2.0 mm (80 mils), centered at a nominal gap of 1.27 mm (50 mils) from the shaft target.

• Does the -00 suffix impact installation?

  The -00 suffix indicates the unit does not have hazardous area agency approvals. Always verify that site safety requirements permit the use of non-rated hardware.

• Can I shorten the 1.0 meter cable?

  No. The cable is a fixed length and is part of the calibrated transducer system. Modification alters electrical impedance and invalidates system accuracy.

• How do I perform a static calibration check?

  Static calibration is performed using a micrometer fixture to plot gap versus voltage, ensuring the output remains within the specified -1 to -17 VDC linear operating band.

• Is the probe tip sensitive to target material?

  Yes. Sensitivity is optimized for AISI 4140 steel. Using other conductive materials will alter the scale factor and requires field sensitivity adjustments.

• What should I do if the connector boot is damaged?

  Replace the boot immediately. The boot provides essential protection against moisture and oil ingress, which can cause erratic readings in industrial environments.

• Can I replace this probe while the machine is online?

  Yes, but the associated monitor channel must be bypassed to prevent spurious alarms or machine trips during the removal and installation process.