Configured for high-precision displacement sensing in compact mechanical envelopes, the Bently Nevada 330905-00-10-10-02-CN (330905 Proximity Probe) provides direct physical signal transduction of rotor position and vibration within confined radial clearances.

Suffix and Configuration Matrix

The part number 330905-00-10-10-02-CN identifies specific mechanical and electrical parameters:

• 00: M10 x 1 threaded probe, without armor.

• 10: 100 mm case length.

• 10: 1.0 meter (39 in) integral cable length.

• 02: Miniature coaxial ClickLoc connector with standard cable.

• CN: Approvals (CSA, ATEX, IECEx).

Hardware Specifications

Rotor Dynamics and Signal Conditioning

The 3300 NSv system is engineered for small-diameter shafts where standard probe geometry is incompatible. Operational integrity relies on precise eddy-current probe scaling to ensure linear output. During commissioning, users must perform gap voltage validation to target -10 VDC at the Proximitor output. Integrated cross-talk suppression ensures signal clarity when multiple probes are installed in close proximity, maintaining signal integrity for rotor dynamics analysis.

Ordering Information

• 1 x 330905-00-10-10-02-CN Proximity Probe.

• 1 x Installation hardware kit (mounting nuts).

• 1 x Regulatory compliance documentation.

Installation Guidelines

• Probe Positioning

• Thread the probe into the mounting hole until the nominal gap distance is achieved.

• Adjust the probe until the Proximitor output voltage reaches -10 VDC.

• Secure the probe using the provided locknuts to prevent displacement during operation.

• Cabling and Grounding

• Ensure the ClickLoc connector is fully seated and clicked into the mating extension cable or Proximitor interface.

• Ground the cable shield at the monitoring rack termination point to prevent ground loops.

Frequently Asked Questions

• What is the purpose of the 3300 NSv platform?

  The NSv series is specifically optimized for small-diameter shafts and confined spaces where traditional Bently Nevada 3300 probes cannot be physically installed.

• Can this probe be used in hazardous environments?

  The CN suffix indicates that the device includes regulatory certifications (CSA, ATEX, IECEx) required for operation in classified hazardous locations.

• Is the probe field-repairable?

  No, the transducer is a factory-sealed unit. Any attempt to disassemble the probe or repair the cable assembly will void the calibration and system accuracy.

• What is the required gap voltage for this system?

  To achieve linear operation, the probe should be set to target a nominal gap voltage of -10 VDC as measured at the Proximitor sensor output.

• Does the cable length affect calibration?

  Yes, the 1.0 meter integral cable is part of the calibrated system; altering this length changes the electrical resonance and invalidates the output linearity.

• Can I use a standard 3300 XL Proximitor with this probe?

  No, the 3300 NSv probe must be paired with an NSv-compatible Proximitor, as the resonant frequencies are specific to this small-tip transducer design.

• How is the probe protected against vibration?

  The probe must be installed with the provided locknuts, and the mounting bracket must be sufficiently rigid to avoid mechanical resonance.

• What is the maximum operating temperature?

  The transducer is rated for continuous operation in temperatures ranging from -51 deg C to +177 deg C, assuming proper installation and thermal isolation.