Description

The Bently Nevada 330100-50-01, also cataloged as the 330100 Proximitor Sensor, operates as a dedicated hardware component for processing dynamic shaft vibration and static position signals within Bently Nevada 3300 Proximity Transducer System platforms. Consequently, this device conditions raw radio frequency signals generated by eddy-current probes into scalable linear voltage outputs.

Suffix Breakdown & Model Matrix

• 330100: Base part number for the 3300 Proximitor Sensor.
• -50: Total length and mounting option designating a 5.0 meter (16.4 feet) system calibration footprint.
• -01: Agency approval option specifying ATEX, IECEx, and North American hazardous area certifications.

Hardware Specifications

Transducer Interface & Mechanical Monitoring Characteristics

This sensor injects a high-frequency excitation signal into the connected probe, thereby preserving precise eddy-current probe scaling against target metals like AISI 4140 steel. The internal driver circuit maintains a stable baseline to ensure accurate gap voltage validation (-10 VDC targets) during static physical positioning. Furthermore, specialized conditioning networks apply active cross-talk suppression to parallel channels, isolating environmental radio frequency noise from the high-fidelity analog loops tracking rotor dynamics.

Frequently Asked Questions

Q: How does a mismatched system length affect the output calibration of this sensor?

A: The internal oscillator tuning matches a precise 5.0 meter total electrical length. If a technician pairs this component with an alternate 9.0 meter probe and extension cable loop, the modification introduces significant scale factor errors and alters the linear range limits.

Q: What field wiring constraints must installation technicians follow?

A: Technicians must terminate the sensor output using standard 3-conductor shielded triad cables. Specifically, the maximum allowable field wiring run between the Proximitor sensor terminals and the main rack monitor must not exceed 305 meters (1000 feet) to prevent severe high-frequency signal roll-off.

Field Installation Guidelines

1. Secure the sensor housing to a flat surface using the standard 4-hole mounting base, ensuring the integral isolation plate completely separates the metal frame from the structural junction box backplate.
2. Terminate the field wires using SpringLoc terminal strips, inserting conductors ranging from 0.2 to 1.5 mm squared (16 to 24 AWG) to establish tight gas-tight joints.
3. Torque the miniature coaxial ClickLoc cable connections to a maximum specification of 0.565 N m using an approved friction-limiting wrench assembly.
4. Verify the power supply provides a clean negative DC potential within the -17.5 to -26 VDC limits at the primary power terminal strip before commissioning the diagnostic gap loop.