Product Overview

The Bently Nevada 330106-05-30-20-02-05 is an armored extension cable for the 3300 XL 8 mm proximity transducer system. It is used to connect the proximity probe to the Proximitor sensor, preserving the eddy-current signal quality required for accurate non-contact measurement of shaft vibration and shaft position.

In rotating machinery monitoring, the extension cable is a functional part of the calibrated transducer system. Correct cable selection helps maintain stable scaling, minimizes noise pickup, and supports reliable trending of radial vibration and axial position. This enables earlier identification of developing mechanical issues such as rotor unbalance, misalignment, rub conditions, and bearing wear.

Hardware Parameters

Engineering notes

• Extension cable length is part of the proximity system calibration. Confirm the full system length (probe + extension cable) matches the selected Proximitor sensor and monitor configuration.

• Use proper routing and clamping to avoid sharp bends, pinch points, and high-energy electrical noise sources.

Industrial Applications

Typical installations include:

• Steam and gas turbines for radial vibration and thrust position measurement (depending on probe mounting)

• Centrifugal compressors in oil, gas, and chemical plants where stable displacement signals support protection systems

• Boiler feed pumps and critical process pumps where early vibration change reduces seal and bearing damage risk

• High-speed motors, generators, and fans where non-contact sensors are preferred for reliability in harsh environments

Operational considerations

• Maintain the specified minimum bend radius and protect connectors from impact during maintenance

• Verify connector engagement and continuity during commissioning to prevent intermittent signal faults

• Keep transducer wiring separated from variable frequency drive outputs and high-current conductors where possible