Description

The Bently Nevada 330130-075-00-00, part of the 330130 series, operates as a high-reliability hardware component for eddy-current signal transmission within 3300 XL 8 mm Proximity Transducer System platforms. This cable acts as the crucial electrical bridge, routing signals seamlessly between the proximity probe tip and the Proximitor signal-conditioning sensor.

Suffix Part Number Breakdown

The specific option strings map directly to the following structural specifications:

• 330130: Base Model Number for the 3300 XL Standard Extension Cable.
• 075: 7.5 metres (24.6 feet) physical cable length.
• 00: Standard unarmored cable option without factory-installed connector protectors.
• 00: No specialized regional agency approvals required (Standard configuration).

Hardware Specifications

Eddy-Current Transmission and Design Characteristics

The hardware utilizes a 75 ohm triaxial physical profile to route the high-frequency radio frequency (RF) signal from the Proximitor sensor down to the probe tip without signal attenuation. Because proximity systems depend on exact total electrical lengths to maintain calibration, the 7.5-metre cable matches specifically with a 1.5-metre proximity probe. Consequently, this precise mating yields a balanced 9.0-metre total loop length.

Meanwhile, the patented CableLoc internal strain relief provides the assembly with a rugged 330 N (75 lbf) maximum pull strength, which actively prevents core separation under heavy industrial vibration. Furthermore, the FEP insulation shell resists chemical degradation when fluids like harsh industrial synthetic oils, turbine lubricants, and corrosive process fluids splash the cable exterior.

Frequently Asked Questions

Q: Can technicians use a 7.5-metre extension cable with a 1.0-metre proximity probe?

A: No. Mixing a 7.5-metre cable with a 1.0-metre probe creates an incorrect 8.5-metre total electrical length, which alters system capacitance and severely degrades the accuracy of the Proximitor sensor’s gap voltage metrics.

Q: How should technicians protect the unshielded coaxial connections for this specific “-00” option?

A: Because this model lacks factory-installed connector protectors, the field technician must manually wrap the joined coaxial connection with self-vitrifying silicone tape, thereby isolating the joint from ambient moisture and grounding faults.

Field Installation Guidelines

• Inspect the gold-plated brass ClickLoc miniature connectors for debris, grease, or copper oxidation before attempting the final physical connection.
• Next, push the male and female connector halves together, turning them firmly until the internal spring mechanism clicks into place.
• Subsequently, wrap the exposed connector union completely with self-fusing silicone tape, keeping the barrier tight to shield the circuit from fluid films and the machine framework.
• After that, route the 7.5-metre triaxial cable inside a dedicated metal tray or flexible armor conduit, keeping the assembly isolated from heavy AC motor lines to avoid EMI noise.
• Finally, verify that the cable routing layout adheres to a minimum static bend radius of 25.4 mm (1.0 inch) to preserve internal capacitance values.