Configured for high-frequency radial vibration and axial position measurement in industrial rotating machinery, the Bently Nevada 330104-00-06-05-01-05 (330104 Proximity Probe) provides direct physical displacement execution via eddy-current sensing technology.

Model Suffix Configuration

• 330104: 3300 XL 8 mm proximity probe.

• 00-06: 3/8-24 UNF thread with 6 mm unthreaded case length.

• 05: 5 mm total case length.

• 01: Miniature coaxial ClickLoc connector with connector protector.

• 05: Agency approval rating (CSA/NRTL/C).

Hardware Specifications

Mechanical Monitoring and Signal Validation

The 3300 XL transducer system utilizes an eddy-current principle to detect displacement. To maintain signal integrity for rotor dynamics analysis, practitioners must verify gap voltage against the nominal -10 VDC setpoint. Cross-talk suppression is maintained by ensuring that probes mounted on the same shaft diameter are spaced according to manufacturer guidelines to avoid interference between overlapping RF fields. Scaling calibration must be verified for the specific target material, usually AISI 4140 steel, to ensure the output voltage is linear across the full measurement range.

Ordering Information

• 330104-00-06-05-01-05 Proximity Probe

• Integrated ClickLoc connector

• Brass locknuts

• Connector protector

• Compliance documentation

Field Installation Guidelines

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

• Gap Setting: Use a precision feeler gauge to establish the nominal air gap; verify the voltage at the Proximitor sensor terminal using a high-impedance multimeter.

• Shielding: Utilize shielded conduit for all cabling runs. Ensure the coaxial shield is continuous and grounded only at the Proximitor end to prevent ground loops.

• Cable Routing: Maintain a minimum bend radius of 25 mm for the coaxial cable to prevent changes in characteristic impedance.

Technical FAQ

1. What material targets are supported?

   The system is factory-calibrated for AISI 4140 steel. Any variation in target material conductivity or permeability requires field recalibration.

2. What is the probe sensitivity?

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

3. What causes unstable gap voltage?

   Instability is generally caused by improper shielding, electrical ground loops, or physical contact between the probe tip and the rotating target.

4. How is probe health tested?

   Health is verified by measuring insulation resistance, loop continuity, and confirming the DC output voltage matches the expected gap distance.

5. Can the probe operate in hazardous environments?

   The "05" suffix denotes specific CSA/NRTL/C agency approvals. Verify site-specific installation drawings for compatibility with hazardous zone requirements.

6. What extension cables are compatible?

   This probe must be used with a compatible Bently Nevada 3300 XL extension cable featuring ClickLoc connectors.