Configured for displacement sensing in rotating machinery protection networks, the Bently Nevada 330104-00-07-90-02-00 (330104-00-07-90-02-00 Proximity Probe) provides direct physical execution of eddy-current signal sensing.

Model Configuration Matrix

• 330104: 3300 XL 8 mm Proximity Probe

• 00: Unthreaded length (0 mm)

• 07: Overall case length (70 mm)

• 90: Total length (9.0 m)

• 02: Connector type (Miniature coaxial)

• 00: Agency approval (Not required)

Hardware Specifications

Mechanical Monitoring and TSI Integration

Eddy-current probe scaling accuracy is required for maintaining the linearity of the vibration signal. Precise gap voltage validation at -10 VDC targets is necessary during the commissioning of the transducer to ensure correct sensor response within the machine's linear range. Cross-talk suppression must be enforced by maintaining proper physical separation between adjacent probes to prevent electromagnetic interference from the high-frequency oscillator. Correct rotor dynamics analysis depends on the stability of the signal path from the probe tip to the rack-based monitor interface.

Ordering info

• 1 unit 330104-00-07-90-02-00 Proximity Probe

• 1 set protective connector dust caps

• 1 technical installation manual

Installation Requirements

• Mounting: Install the probe into a rigid bracket to maintain a stable air gap during machine operation. Ensure jam nuts are torqued to prevent shifting under load.

• Grounding: Maintain electrical isolation between the probe housing and the machine structure, unless system design dictates a common ground path.

• Cable Routing: Ensure coaxial cabling is routed through dedicated metallic conduit, away from high-current power cables to minimize signal noise.

• Gap Setting: Calibrate the air gap using a precision feeler gauge. Verify output voltage at the proximitor terminal confirms the probe is centered in the linear range.

Technical FAQ

• Is this probe compatible with standard 3300 XL extension cables?

  Yes, the 330104 probe is designed to integrate with 3300 XL extension cables, provided the total system length remains consistent with the calibrated setup.

• What is the standard target material for this probe?

  The factory-default calibration is optimized for AISI 4140 steel. Variations in target material magnetic properties require a calibration factor adjustment.

• Can the probe be used in hazardous locations?

  The 00 suffix indicates that this specific part number does not carry hazardous area certifications. Verify local site requirements prior to installation.

• What is the maximum operating temperature?

  The probe is rated for continuous operation up to 177 deg C. Exceeding this temperature can damage the internal coil potting and compromise signal integrity.

• Are the connector pins field-replaceable?

  The connectors are factory-swaged to the coaxial cable. Any mechanical damage to the connector requires replacement of the entire probe assembly.

• How can I check the probe functionality?

  Monitor the gap voltage at the proximitor terminal. A signal outside the expected range or excessive noise indicates potential sensor or cable failure.

• Is the probe tip protected from direct contact?

  The probe tip is hardened, but not intended for physical contact with the rotating target. Ensure an appropriate air gap is maintained at all times.

• Does the probe require maintenance?

  The probe is a solid-state assembly with no moving parts. Periodic inspection of the connector for moisture or debris is recommended.