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Configured for signal conditioning in vibration monitoring platforms, the Bently Nevada 330180-50-00 (330180 Proximitor Sensor) provides direct physical signal translation for non-contacting proximity probes.

Hardware Specifications

Parameter Specification
Model 330180-50-00
Brand Bently Nevada
Origin USA
Weight 1.23 kg
Dimensions High-density DIN-rail compatible housing
Operating Temp -51 deg C to +100 deg C
Power Consumption -17.5 VDC to -26 VDC @ 12 mA
Scaling Factor 7.87 mV/µm (200 mV/mil)

Eddy-Current Probe Scaling and Rotor Dynamics

The 330180 Proximitor Sensor employs radio-frequency oscillator circuitry to derive shaft position data. To ensure valid rotor dynamics analysis, the system scale factor is set to 7.87 mV/µm. During site installation, gap voltage validation is required to confirm that the sensor output targets -10 VDC when the probe is positioned at the midpoint of its linear range. Precise adherence to these voltage targets prevents signal saturation and non-linear distortion during transient shaft displacement events. Furthermore, cross-talk suppression is maintained by ensuring that adjacent sensors are spaced according to established layout protocols, preventing signal interference caused by mutual coupling of the high-frequency carrier signals.

Frequently Asked Questions

Q: Can the 330180-50-00 be utilized in a system with a 9-metre probe and cable assembly?

A: No. The Proximitor Sensor is calibrated specifically for a 5.0 metre total system length. Using components of a different length will result in significant measurement errors and an incorrect scale factor.

Q: Is this sensor suitable for hot-swapping in a live monitoring rack?

A: While the Proximitor itself is a passive signal conditioner, disconnecting the coaxial input while the system is powered will result in an "Open Loop" or "Transducer Not OK" status on the connected monitor module.

Field Installation Guidelines

  1. Ensure the DIN-rail is securely fastened and grounded to provide a common reference potential for the Proximitor housing.
  2. Route coaxial cables through dedicated conduits or trays, maintaining strict separation from high-voltage AC cabling to mitigate electromagnetic interference.
  3. Tighten coaxial connectors to the manufacturer-specified torque to ensure low-impedance signal paths and prevent mechanical loosening due to equipment vibration.
  4. Verify that the cable shield remains continuous and is grounded at the monitor end only to prevent the formation of ground loops.
  5. Confirm proper gap distance by measuring the DC output at the monitor terminals; the target voltage of -10 VDC must be validated before finalizing the sensor position.

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