Configured for high-frequency displacement measurement in 3300 XL machinery monitoring networks, the Bently Nevada 330101-00-46-10-02-05 (330101 Proximity Probe) provides direct physical signal transduction. This unit captures relative motion between the probe tip and a conductive target, generating an output signal proportional to the gap distance for rotor dynamics analysis.

Configuration & Suffix Matrix

• 330101: 3300 XL 8 mm Proximity Probe

• 00: Unthreaded Length (metric)

• 46: Overall Case Length (metric)

• 10: Total Length (metric)

• 02: Connector Type (Miniature coaxial ClickLoc connector)

• 05: Agency Approval (Multiple approvals)

Hardware Specifications

Signal Dynamics & Validation

System performance is defined by eddy-current probe scaling, where the transducer operates at a nominal 1 MHz oscillator frequency. Precise gap voltage validation at -10 VDC during machine steady-state operation is necessary to maintain the measurement within the linear range of the Proximitor sensor. To ensure signal integrity and mitigate cross-talk suppression issues, probes must be installed with sufficient physical clearance from neighboring transducers, and coaxial signal paths must be maintained in dedicated, shielded conduit.

Ordering Information

• 1 x 330101-00-46-10-02-05 Proximity Probe

• 1 x Connector protector

• 1 x Technical documentation set

Installation Best Practices

• Mount the probe such that the tip is perpendicular to the target surface to ensure accurate radial vibration data.

• Tighten the jam nut using a calibrated torque wrench to prevent mechanical vibration of the probe assembly.

• Maintain a minimum 10 mm clearance from the mounting hole wall to prevent side-view interference with the eddy-current field.

• Verify all coaxial connections are fully seated in the ClickLoc interface to prevent intermittent signals.

Technical Inquiry Index

• Q: Can this probe be used for axial position measurement?

  A: Yes, the 3300 XL 8 mm probe is suitable for both radial vibration and axial thrust position measurement on rotating shafts.

• Q: What is the maximum acceptable side-view?

  A: Ensure at least 10 mm of clearance from the hole wall to avoid non-linear signals caused by peripheral metal interference.

• Q: Does the PPS tip need to be submerged in oil?

  A: No, but the PPS material is compatible with immersion in standard turbine lubricating oils and hydraulic fluids.

• Q: How do I test the cable for breaks?

  A: Use a digital multimeter to verify impedance and continuity between the center conductor and the outer shield.

• Q: Can I extend the cable length by adding a splice?

  A: No, splicing creates impedance mismatches that alter the signal phase and amplitude, rendering the measurement unreliable.

• Q: What is the purpose of the connector protector?

  A: It prevents moisture ingress and physical damage to the coaxial connector threads and coupling interface.

• Q: Is this probe intrinsically safe?

  A: The probe assembly complies with specific hazardous area classifications when used with approved Zener or galvanic isolation barriers.

• Q: How does the probe detect gap distance?

  A: The probe tip coil creates a magnetic field; the proximity of the conductive target absorbs energy, changing the oscillator amplitude.