Configured for signal conditioning in machine protection systems, the Bently Nevada 330180-X1-05 MOD:145004-81 (330180-X1-05 Proximitor Sensor) provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

• 330180: 3300 XL Proximitor Sensor base model.
• X1: System length options (11: 1.0 m, 51: 5.0 m, 91: 9.0 m).
• 05: CSA, ATEX, and IECEx agency approvals.
• MOD:145004-81: Factory modification code for specific impedance matching.

Hardware Specifications

Eddy-Current Probe Scaling and Rotor Dynamics

The 330180 Proximitor functions as the radio-frequency oscillator/demodulator for 3300 XL proximity probe systems. It maintains the standard 7.87 V/mm scaling, ensuring signal linearity across the probe's specified range. Accurate rotor dynamics analysis depends on maintaining the system's baseline gap voltage, typically -10 VDC when centered. The internal circuitry provides signal filtering to eliminate high-frequency noise, ensuring the output waveform reflects the true radial vibration or axial position of the monitored shaft. Shielding within the unit facilitates cross-talk suppression in high-density rack configurations.

Ordering info

• 1 x 330180-X1-05 Proximitor Sensor
• 1 x Installation terminal connector

Field Installation Guidelines

• Mounting
  • Secure the sensor to a DIN-rail or bulkhead mount, ensuring the housing chassis is connected to a common instrument ground.
• Electrical Connection
  • Connect the -24 VDC power supply to the terminal block, ensuring correct polarity to prevent component damage.
  • Use shielded twisted-pair cabling for signal output to maintain signal integrity over long runs.
• Grounding
  • Bond the Proximitor housing to a low-impedance earth ground to satisfy EMI/RFI immunity standards.

Frequently Asked Questions

• Can I replace a 3300 XL Proximitor with an older 3300 series unit?

  No. 3300 XL sensors incorporate internal circuitry improvements that are not backwards compatible with standard 3300 series probe systems.

• What does the MOD:145004-81 designation signify?

  This is a specific engineering modification code for custom impedance or environmental parameters; ensure the spare matches the original installed unit.

• How do I verify if the sensor is functioning correctly?

  Measure the output voltage at the terminal block; with the probe at the nominal gap, the output should read approximately -10 VDC.

• Is the sensor affected by power supply fluctuations?

  The unit includes internal voltage regulation, but input power should be maintained within -17.5 VDC to -26 VDC for stable operation.

• How does cable length affect the Proximitor?

  Proximitors are factory-calibrated for specific system lengths (1, 5, or 9 meters). Using the wrong cable length will cause significant scaling errors.

• Is the sensor housing waterproof?

  The housing is designed for industrial cabinet mounting and is not rated for direct exposure to moisture or immersion.

• What is the response time of the Proximitor?

  The sensor provides a wide frequency response, typically 0 Hz to 10 kHz, capturing transient mechanical events effectively.

• How should I handle the sensor during maintenance?

  Observe ESD precautions when handling the terminal blocks and avoid dropping the unit, as mechanical shock can damage internal components.