The Bently Nevada 330103-00-12-10-12-00, also cataloged as the 330103-00-12-10-12-00 Proximity Probes, operates as a dedicated hardware component for non-contacting displacement measurement within 3300 XL transducer systems.

Suffix & Model Matrix

• Model: 330103-00-12-10-12-00

• Series: 3300 XL

• Configuration: Suffixes define probe length, mounting threads, connector type, and cable armor specifications.

Hardware Specifications

Mechanical Monitoring & TSI Characteristics

The 3300 XL system utilizes eddy-current probe scaling to convert shaft motion into a standard 7.87 V/mm (200 mV/mil) output. During commissioning, gap voltage validation against -10 VDC targets is required to ensure the probe tip operates within the linear range of the transducer. The oscillator circuit provides the necessary excitation frequency, while cross-talk suppression is maintained through matched components to ensure channel-to-channel isolation. Rotor dynamics are monitored by tracking the shaft centerline position and vibration amplitude, with electrical performance calibrated to the defined system loop length.

Ordering Info

• One (1) 330103-00-12-10-12-00 Proximity Probe

• Protective connector cap

• Installation technical documentation

Field Installation Guidelines

• Mounting: Install the probe into the threaded housing; ensure the physical gap distance matches the design specification to achieve the target gap voltage.

• Cabling: Use factory-terminated coaxial cabling; ensure all connections are hand-tightened and clean to prevent signal impedance variations.

• Grounding: Secure the probe body to the machine frame to establish a consistent ground reference for the eddy-current field.

• Shielding: Route all signal cables through grounded metallic conduit to protect against electromagnetic interference in the industrial environment.

• Verification: Perform a static gap check using a high-impedance voltmeter before machine startup to confirm correct electrical positioning.

Frequently Asked Questions

• Q: Is the 330103 probe compatible with 3300 XL 5 meter or 9 meter systems?

  A: Yes, but the system must use the matching oscillator and extension cable length to maintain calibration and accuracy specifications.

• Q: How is the probe tip gap measured?

  A: The gap is measured electrically by reading the voltage at the oscillator output; standard calibration targets a -10 VDC gap voltage.

• Q: Can the probe cable be repaired if the insulation is damaged?

  A: No, field repair of the coaxial cable is not permitted as it alters the impedance and electrical characteristics of the calibrated transducer system.

• Q: How does material type affect probe sensitivity?

  A: Probe sensitivity is calibrated for 4140 steel; other target materials will require a scaling factor adjustment to ensure accurate displacement readings.

• Q: What is the purpose of the armor on the cable?

  A: The cable armor provides mechanical protection against debris, oil, and potential physical damage in harsh rotating equipment environments.

• Q: Can I use this probe without an oscillator?

  A: No, the probe is a passive device and requires a matched 3300 XL oscillator to generate the radio-frequency signal and demodulate displacement data.

• Q: What causes erratic gap voltage readings?

  A: Erratic readings are typically caused by loose connections, electrical noise, target material irregularities, or damage to the probe tip and coaxial cable.

• Q: Should I use thread locking compound on the probe?

  A: Avoid using thread locking compounds or excessive sealant on probe threads to prevent interference with the electrical ground path between the probe and machine.