Bently Nevada 330105-02-12-90-02-00 3300 XL 8 mm Reverse Mount Proximity Probe

Bently Nevada 330105-02-12-90-02-00 3300 XL 8 mm Reverse Mount Proximity Probe

Configured for non-contact shaft displacement measurement in the Bently Nevada 3300 XL Proximity Transducer System, the Bently Nevada 330105-02-12-90-02-00 (330105 3300 XL 8 mm Reverse Mount Proximity Probe) provides direct physical sensing through eddy-current technology. The probe is intended for use with a compatible 3300 XL extension cable and 3300 XL Proximitor Sensor to measure shaft vibration, axial position, differential expansion, and rotational reference signals.

Suffix Breakdown & Model Matrix

The available documentation identifies the complete catalog number 330105-02-12-90-02-00 but does not define the individual suffix fields. No official suffix matrix or option code interpretation is provided in the supplied material.

Hardware Specifications

Eddy-Current Probe Scaling and Cross-Talk Suppression

The probe generates an analog signal proportional to the distance between the probe tip and the conductive target surface. Correct probe scaling depends on installation with the specified extension cable and Proximitor Sensor. During commissioning, gap voltage is typically verified near -10 VDC to confirm the probe operates within its calibrated measurement range. Probe cables should be routed independently from power conductors and switching circuits to reduce electromagnetic coupling and minimize cross-talk between adjacent transducer channels.

Frequently Asked Questions

Q: Can the probe operate as a standalone sensor?
A: No. The probe is designed to function as part of the complete 3300 XL proximity transducer system together with a compatible extension cable and Proximitor Sensor.

Q: Is the reverse-mount configuration electrically different from a standard probe?
A: The reverse-mount configuration changes the mechanical installation method. Electrical operation depends on the complete transducer system and compatible components.

Q: Does replacing the probe require signal verification?
A: Yes. After replacement, probe gap voltage and channel response should be verified before returning the monitoring system to normal operation.

Field Installation Guidelines

• Install the probe using the specified reverse-mount hardware to maintain mechanical stability.
• Adjust the probe-to-target clearance according to the applicable 3300 XL installation procedure.
• Avoid excessive bending or tensile loading of the probe cable during routing.
• Separate transducer wiring from power cables, motor feeders, and variable-frequency drive outputs.
• Ground cable shielding according to the system grounding practice to preserve signal quality.
• Verify gap voltage and measurement response after installation and before machine startup.