BENTLY NEVADA 330901-00-08-10-02-00 3300 NSv Proximity Probes

Configured for sub-micron vibration measurement in compact machinery, the BENTLY NEVADA 330901-00-08-10-02-00 (330901 Proximity Probe) provides direct physical/electrical execution of non-contacting shaft displacement sensing. This transducer utilizes a high-frequency radio signal to detect target proximity, yielding a voltage output modulated by the distance between the probe tip and the metallic target surface.

Suffix Breakdown & Model Matrix

• 330901: Base model for 3300 NSv Proximity Probe.
• 00: Unthreaded length (0.0 in).
• 08: Overall case length (0.8 in).
• 10: Total system length (1.0 m).
• 02: Connector and cable type (Miniature coaxial ClickLoc, standard cable).
• 00: Agency approval (None).

Hardware Specifications

Mechanical Monitoring & TSI Integration

The 3300 NSv system requires precise eddy-current probe scaling to ensure linear output corresponding to shaft displacement. Operators must perform gap voltage validation, targeting -10 VDC within the nominal linear range to facilitate accurate rotor dynamics analysis. Due to the sensitivity of the NSv series for small-diameter shafts, cross-talk suppression is achieved by maintaining specific installation spacing between adjacent probes to prevent interference with the high-frequency carrier signal oscillator.

Frequently Asked Questions

Q: Can the 330901 probe be utilized with standard 3300 XL Proximitors?

A: No. The 3300 NSv series is specifically tuned for the NSv Proximitor Sensor. Using mismatched components will result in incorrect scaling factors and signal non-linearity, rendering the displacement data invalid.

Q: What are the torque limitations for the 1/4-28 thread?

A: Excessive tightening can deform the probe case and damage the internal coil assembly. Apply torque strictly according to the installation manual to ensure structural integrity without compromising the sensing face geometry.

Field Installation Guidelines

1. Ensure the mounting hole is free of debris and tapped to 1/4-28 UNF specifications for proper fit.
2. Verify the target material is non-ferrous or calibrated for the specified probe frequency; ensure the surface has a minimal roughness finish to prevent measurement jitter.
3. Utilize a jam nut to lock the probe position after establishing the required gap distance using a feeler gauge or depth micrometer.
4. Route the miniature coaxial cable with care, avoiding sharp bends that could compromise the cable dielectric or impedance.
5. Use a digital multimeter to confirm the gap voltage at the Proximitor output; adjust the probe axial position until the reading stabilizes at the manufacturer-defined setpoint.