Bently Nevada 330104-03-15-10-01-05 Proximity Probe

The Bently Nevada 330104-03-15-10-01-05, also cataloged as the 330104 proximity probe, operates as an armored eddy-current sensor for shaft displacement monitoring within 3300 XL 8 mm probe systems.

Suffix Breakdown & Model Matrix

• 330104 → Base model, 3300 XL 8 mm proximity probe, M10 × 1 thread, with armor.

• 03 → Unthreaded length option, 30 mm.

• 15 → Overall case length option, 150 mm.

• 10 → Total cable length option, 1.0 m (3.3 ft).

• 01 → Connector option, miniature coaxial ClickLoc connector with protector, standard cable.

• 05 → Agency approval option, CSA, ATEX, IECEx certified.

Hardware Specifications

Eddy-Current Probe Scaling

The probe is calibrated for –10 VDC gap voltage validation, ensuring accurate displacement conversion when paired with a matching 3300 XL 1-meter Proximitor Sensor. This scaling supports rotor dynamics monitoring and vibration analysis. Armor construction enhances cable durability in harsh industrial environments, while cross-talk suppression maintains fidelity in multi-probe installations.

Frequently Asked Questions

Q: What is the linear operating range of the probe? A: The probe supports a 2.0 mm (80 mils) linear range, from approximately 0.25 mm to 2.25 mm.

Q: What certifications are included? A: CSA, ATEX, and IECEx hazardous area approvals are provided under suffix –05.

Q: How is the probe scaled with its driver? A: It provides a nominal scale factor of 7.87 V/mm (~200 mV/mil) when used with a matching 3300 XL 1-meter Proximitor Sensor.

Field Installation Guidelines

• Install probe tip perpendicular to shaft surface for accurate displacement measurement.

• Maintain insertion depth to achieve –10 VDC gap reference.

• Route armored coaxial cable with shielding grounded at a single point to minimize interference.

• Avoid sharp bends in cable to prevent conductor fatigue.

• Confirm driver calibration after installation to ensure proper scaling.