Configured for non-contact displacement measurement in industrial rotating machinery, the Bently Nevada 330704-000-100-10-02-00 (330704-000-100-10-02-00 Proximity Probe) provides direct physical execution of eddy-current signal sensing within machine train monitoring platforms.

Model Suffix Breakdown

• 330704: 3300 XL 11 mm Proximity Probe

• 000: Unthreaded length option (0 mm)

• 100: Overall case length option (100 mm)

• 10: Total length option (1.0 m)

• 02: Connector option (Miniature coaxial ClickLoc connector)

• 00: Agency approval option (Not required)

Hardware Specifications

Mechanical Monitoring and TSI Integration

Eddy-current probe scaling is critical for maintaining linear response across the specified measurement range. The 11 mm probe coil generates a high-frequency magnetic field, inducing eddy currents in the monitored target material. Precise gap voltage validation is necessary to ensure signal integrity, with target setpoints of -10 VDC typically applied during calibration. Cross-talk suppression must be maintained by adhering to physical separation guidelines between adjacent probe installations to ensure accurate rotor dynamics analysis without signal interference.

Ordering info

• 1 unit 330704-000-100-10-02-00 Proximity Probe

• 1 set protective connector caps

• 1 installation datasheet

Field Installation Guidelines

• Mounting Requirements: The probe must be mounted in a rigid bracket to prevent vibration-induced measurement errors. Secure position with provided jam nuts after setting the target gap.

• Grounding: Ensure proper electrical isolation between the probe tip and the machine chassis as required by the specific monitoring application.

• Cable Handling: Route the coaxial cable through shielded conduit to protect against electromagnetic noise and physical abrasion.

• Gap Adjustment: Utilize a micrometer or feeler gauge to establish the nominal gap required by the system, verifying the output voltage at the signal conditioner.

Frequently Asked Questions

• Is this probe compatible with standard 3300 XL extension cables?

  Yes, this probe is designed for use with standard 3300 XL extension cables that match the system length requirements.

• How is the target material accounted for?

  The probe is calibrated for AISI 4140 steel. Any deviation in target material composition necessitates a calibration factor adjustment.

• Can this probe operate in submerged conditions?

  The probe tip is chemically resistant, but the connector must be kept dry and protected from fluid ingress to ensure signal integrity.

• What is the maximum operating temperature?

  The probe is rated for operation up to 177 deg C, assuming the tip and body are installed in compliance with environmental constraints.

• Why is gap voltage important?

  Gap voltage serves as the baseline for determining the linear range of the transducer. Maintaining -10 VDC ensures the signal stays within the usable linear region.

• Does the probe require periodic recalibration?

  Periodic verification of the gap voltage and system calibration check is recommended during major machine maintenance outages.

• Is the ClickLoc connector field-serviceable?

  The ClickLoc connector is a factory-installed component. It is not designed for field disassembly; replace the entire cable assembly if the connector is damaged.

• What spacing is required to prevent cross-talk?

  Refer to the 3300 XL 11 mm probe installation manual for specific minimum spacing distances between probes to avoid electromagnetic interference.