Bently Nevada 330171-00-12-10-02-05 3300 5 mm Proximity Probe

Configured for shaft position and vibration measurement in the 3300 Series proximity transducer system, the Bently Nevada 330171-00-12-10-02-05 (330171 3300 5 mm Proximity Probe) provides non-contact eddy-current displacement measurement for rotating machinery.

Hardware Specifications

Eddy-Current Probe Scaling and Gap Voltage

The 330171-00-12-10-02-05 uses an eddy-current measurement principle to detect changes in the distance between the probe tip and a conductive shaft target. Therefore, shaft displacement produces a corresponding electrical output from the associated proximity transducer system.

For installation and signal validation, the probe gap should be established according to the applicable 3300 Series system requirements. A -10 VDC target is a standard reference point for proximity probe gap validation. Target material also affects the measurement response, so the specified carbon-steel calibration target should be considered when interpreting displacement data.

The probe supports both static and dynamic measurements. Static displacement represents shaft position, while dynamic displacement represents vibration movement relative to the probe.

Frequently Asked Questions

Q: What measurement principle does the 330171-00-12-10-02-05 use?
A: It uses non-contact eddy-current displacement measurement to detect changes in the probe-to-shaft target distance.

Q: What shaft material is the probe calibrated for?
A: The specified target material is standard carbon steel. Other conductive target materials may require adjustment factors.

Q: What connector does this probe use?
A: It uses a miniature coaxial ClickLoc connector with a gold-plated, corrosion-resistant connection interface.

Field Installation Guidelines

• Mount the probe with its sensing axis directed toward the monitored shaft surface.
• Maintain the specified probe-to-target gap during installation and verify the electrical output before commissioning.
• Route probe cables away from high-current power conductors and other sources of electrical interference.
• Keep the connector interface clean and dry during installation.
• Avoid excessive cable bending, pulling, or mechanical loading at the connector.
• Verify the probe cable, connector, extension components, and associated proximity transducer as a complete measurement chain.
• Confirm the target shaft material before applying calibration or scaling data.
• For vibration measurements, maintain a stable mechanical mounting position so probe movement does not introduce false displacement signals.
• Where shielded cabling is used, terminate the shield according to the applicable Bently Nevada installation and system grounding requirements.
• After installation, validate the static gap signal before using the channel for shaft position, vibration, Keyphasor, or speed measurements.