Configured for non-contact shaft vibration and radial displacement measurement in 3300 XL monitoring systems, the Bently Nevada 330101-00-17-10-02-00 (330101 Proximity Probe) provides direct eddy-current transducer operation through matched probe, extension cable, and Proximitor assemblies. The probe converts shaft position variation into proportional electrical output for machinery protection systems.

Ordering Code Breakdown

Mechanical and Electrical Specifications

Eddy-Current Scaling Characteristics

The 3300 XL transducer system operates using calibrated eddy-current interaction between the probe tip and conductive shaft surfaces. System sensitivity depends on matched electrical characteristics between the probe, extension cable, and Proximitor Sensor assembly.

Gap voltage verification is commonly performed during commissioning. A nominal static target near -10 VDC positions the probe within the calibrated linear operating region. Excessive probe extension or improper bracket rigidity can alter signal stability and phase response.

Signal routing should avoid parallel installation with motor feeder cables, variable-frequency drive outputs, and switching power conductors. Electromagnetic coupling between adjacent transducer cables may introduce cross-talk and waveform distortion.

Technical FAQ

Q: Can the probe operate without a matching Proximitor Sensor?
A: No. The probe requires a compatible Proximitor Sensor assembly for calibrated signal conditioning and displacement output generation.

Q: Is field shortening of the coaxial cable permitted?
A: No. Cable modification changes impedance and affects transducer calibration characteristics.

Q: What is the purpose of the -10 VDC gap reference?
A: The gap voltage establishes the probe within the linear operating range required for accurate shaft displacement measurement.

Q: Can the probe assembly be installed near VFD output cables?
A: Separation from high-energy switching conductors is recommended to minimize electromagnetic interference.

Q: Does the probe require dual-end shield grounding?
A: Shield grounding is typically implemented at one instrumentation reference point to reduce ground loop currents.

Field Installation Guidelines

Verify mounting bracket rigidity before final probe positioning. Mechanical looseness at the bracket interface can generate false vibration readings during machine operation.

Advance the probe gradually toward the shaft surface while monitoring static gap voltage through the associated monitor or Proximitor output. Sudden voltage fluctuation may indicate shaft runout, contamination, or improper alignment.

Avoid sharp cable bend radii near connector terminations. Connector locking hardware should remain fully secured to maintain shielding continuity and signal integrity.

Ordering Information

• 330101-00-17-10-02-00 Proximity Probe

• Integral coaxial cable assembly

• Connector protection hardware

• Factory identification labeling

Logistics and Dispatch

Delivery time: 2-7 days when payment finish. Shipment is arranged through DHL, FedEx, or UPS using anti-static industrial packaging with reinforced internal cushioning for vibration transducer protection during international transport.