Configured for high-frequency radial vibration and axial position monitoring in industrial rotating machinery, the Bently Nevada 330101-00-32-05-02-00 (330101 Proximity Probe) provides direct physical displacement execution via eddy-current sensing technology.

Model Suffix Configuration

• 330101: 3300 XL 8 mm proximity probe.

• 00-32: Unthreaded case length and thread configuration.

• 05: Total case length.

• 02: Miniature coaxial ClickLoc connector interface.

• 00: Standard agency approval classification.

Hardware Specifications

Mechanical Monitoring and Signal Validation

The 3300 XL transducer system utilizes an eddy-current principle to detect displacement. To maintain measurement fidelity, practitioners must perform gap voltage validation during system commissioning, targeting a nominal -10 VDC setpoint. Cross-talk suppression is maintained by ensuring that probes mounted on the same shaft diameter adhere to specific spatial separation requirements to prevent interference from overlapping radio-frequency fields. Signal scaling must be verified against the conductive target material—typically AISI 4140 steel—to ensure linear output across the required measurement range.

Ordering Information

• 330101-00-32-05-02-00 Proximity Probe

• Integrated ClickLoc connector interface

• Brass locknuts

• Plastic connector protector cap

• Technical documentation and factory calibration data

Field Installation Guidelines

• Mounting: Secure the probe in a rigid, grounded mounting bracket; ensure the tip is perpendicular to the target surface.

• Gap Setting: Utilize a precision feeler gauge to establish the physical gap; verify output voltage at the Proximitor sensor terminal using a high-impedance digital multimeter.

• Cabling: Route coaxial cables through grounded metal conduit. Ensure the minimum bend radius is 25 mm to prevent characteristic impedance shifts.

• Grounding: Terminate the coaxial shield at the Proximitor sensor terminal block only; ensure isolation from chassis grounds to prevent ground loops.

Technical FAQ

1. What target materials are supported?

   The system is factory-calibrated for AISI 4140 steel. Using other conductive materials necessitates a change in the scale factor and field recalibration.

2. What is the standard probe sensitivity?

   The sensitivity for 8 mm 3300 XL probes is 7.87 V/mm (200 mV/mil).

3. What causes unstable gap voltage?

   Unstable voltage is typically caused by electrical noise, poor shield continuity, or physical contact between the probe tip and the target.

4. How is probe health verified?

   Health is confirmed by measuring loop resistance, coaxial shield integrity, and verifying the DC gap voltage remains within the expected linear operating range.

5. Can the probe operate in hazardous zones?

   The "00" suffix denotes standard industrial approval. Consult local hazardous area installation drawings for site-specific compliance requirements.

6. What extension cables are compatible?

   This probe is compatible only with 3300 XL extension cables featuring ClickLoc connectors; using non-matched cables will induce measurement errors.

7. What is the effect of mounting angle on measurements?

   The probe tip must be perfectly perpendicular to the target to ensure a uniform eddy-current field, preventing non-linear displacement readings.

8. Does the probe support electrical hot-swapping?

   The system is not designed for hot-swapping. Remove power from the Proximitor sensor before disconnecting or replacing the probe.