The Bently Nevada 330173-00-09-10-02-CN, also cataloged as the 330173 Proximity Probes, operates as a dedicated hardware component for rotor position and vibration displacement measurement within industrial machinery monitoring platforms.

Suffix Breakdown and Model Configuration

The 330173-00-09-10-02-CN part number defines the transducer configuration:

• 00: M8 x 1 threaded probe, without armor.

• 09: 90 mm unthreaded length.

• 10: 1.0 meter (3.3 feet) system length.

• 02: Miniature coaxial ClickLoc connector with standard cable.

• CN: CSA, ATEX, and IECEx agency approval rating.

Hardware Specifications

Rotor Dynamics and Transducer Calibration

The 3300 5 mm system relies on accurate eddy-current probe scaling to ensure linear signal output relative to the target surface. Commissioning requires gap voltage validation to ensure the sensor tip aligns with the -10 VDC target, providing the necessary reference for linear displacement measurement. The design incorporates cross-talk suppression to maintain signal fidelity when multiple probes are mounted in high-density proximity, preventing interference between synchronous vibration channels.

Ordering Information

• 1 x 330173-00-09-10-02-CN Proximity Probe.

• 1 x Installation hardware kit (locknuts included).

• 1 x Regulatory compliance and installation documentation.

Field Installation Guidelines

• Probe Mounting

• Thread the probe into the mounting bracket until the required clearance from the shaft surface is achieved.

• Adjust the probe depth to reach a nominal -10 VDC output at the Proximitor.

• Secure the probe position with the provided locknuts to mitigate vibration-induced mechanical drift.

• Cable Management

• Connect the ClickLoc miniature coaxial connector, ensuring it is fully seated to maintain signal integrity.

• Route the coaxial cable away from high-power conductors to minimize electromagnetic interference.

• Ground the cable shield exclusively at the monitoring rack termination point.

Frequently Asked Questions

• What is the purpose of the 5 mm probe tip?

  The 5 mm tip provides a balance between target area requirements and physical size, making it suitable for applications where space for larger 8 mm transducers is limited.

• Can this probe be used in hazardous area installations?

  The CN suffix indicates the device meets CSA, ATEX, and IECEx standards for safe operation in specified hazardous environments.

• Is the 1.0 meter cable length modifiable?

  No, the integral cable length is matched to the system calibration. Altering the cable length will shift the resonant frequency and invalidate the output signal accuracy.

• Why is gap voltage validation required?

  Gap voltage validation ensures the probe is operating within the linear portion of its transduction range, which is required for accurate displacement measurement.

• What signal polarity does the probe output?

  The system utilizes a negative-going output, where the voltage becomes more negative as the probe-to-target gap decreases.

• How is the probe protected from fluid ingress?

  The connector interface is designed to resist environmental ingress, though direct exposure to process fluids should be minimized per site safety protocols.

• Can the probe be used with non-Bently Nevada Proximitors?

  The probe must be used with a 3300-compatible Proximitor to ensure correct impedance matching and signal scaling.

• Is the probe field-repairable if the cable is damaged?

  No, the transducer is a factory-calibrated, sealed assembly; cable damage renders the unit unusable and requires replacement.