Configured for shaft displacement monitoring in mechanical platforms, the Bently Nevada 330104-00-07-50-02-00 (330104-00-07-50-02-00 Proximity Probes) provides direct physical and electrical execution of non-contacting position signal conditioning.

Suffix Model Decomposition

• 330104: Base Model (3300 XL 8 mm Proximity Probe)

• 00: Unthreaded Length (00 mm)

• 07: Overall Case Length (07 mm)

• 50: Total System Length (5.0 meters)

• 02: Connector Type (Miniature coaxial ClickLoc connector)

• 00: Agency Approval (Standard)

Hardware Specifications

Mechanical Monitoring & TSI Characteristics

The 3300 XL transducer system utilizes eddy-current probe scaling to convert target shaft motion into a linearized voltage output. During commissioning, gap voltage validation against -10 VDC targets at the oscillator output ensures the probe remains within its optimal linear measurement range. This system is essential for rotor dynamics analysis. Cross-talk suppression is maintained through frequency-coded oscillator channels, preventing signal interference between adjacent proximity sensors in high-density machine configurations.

Ordering info

• 1 x 330104-00-07-50-02-00 Proximity Probe

• 1 x Connector protector cap

• 1 x Installation technical documentation

Field Installation Guidelines

• Mechanical Mounting: Thread the probe into the mounting assembly; verify the physical air gap with a feeler gauge to ensure the target -10 VDC gap voltage is achieved.

• Cabling: Route coaxial cabling through grounded metallic conduit to prevent electromagnetic interference; observe minimum bend radius constraints.

• Grounding: Secure the probe body to the machine ground reference to maintain a stable electrical path for the eddy-current field.

• Connection Verification: Inspect all connectors for contaminants and ensure hand-tightened security prior to system startup.

• Signal Validation: Perform a static gap check using a high-impedance voltmeter at the oscillator output before initiating machine rotation.

Frequently Asked Questions

• Q: Is the 330104 probe compatible with 3300 NSv oscillator modules?

  A: No, the 330104 probe is designed for the 3300 XL system and requires a matched 3300 XL oscillator to ensure correct scaling and frequency response.

• Q: How is the probe tip gap measured during installation?

  A: The gap is validated by measuring the DC output voltage at the oscillator signal terminals; the target is -10 VDC within the probe linear range.

• Q: Can the coaxial cable be shortened or spliced?

  A: No, the cable length is calibrated to the system resonant frequency; field modification invalidates the scale factor and system accuracy.

• Q: What is the effect of target material on sensor output?

  A: Probes are factory-calibrated for 4140 steel; usage with other materials requires a scale factor adjustment to maintain reading accuracy.

• Q: What is the purpose of the connector protector cap?

  A: The cap prevents ingress of debris, oil, and environmental contaminants, ensuring electrical contact integrity at the coaxial interface.

• Q: Does the probe require an external power supply?

  A: No, the probe is a passive device; it receives excitation power via the radio-frequency carrier signal from the 3300 XL oscillator.

• Q: What causes unstable or drifting signal readings?

  A: Drift is typically caused by loose connections, electrical ground loops, or physical damage to the probe tip or coaxial cable insulation.

• Q: Should thread-locking compound be used during installation?

  A: No, thread-locking compounds may create an insulating barrier that disrupts the required electrical ground path between the probe and machine housing.