330130-040-01-05 | Bently Nevada | 3300 XL Extension Cable

Configured for signal transmission between eddy-current transducers and monitoring instrumentation in machinery protection systems, the Bently Nevada 330130-040-01-05 (330130 Extension Cable) provides direct physical signal path continuity for proximity measurement chains.

Suffix Breakdown & Model Matrix

• 330130: Base model number for 3300 XL 8 mm Extension Cable.
• 040: Cable length of 4.0 meters.
• 01: Connector/Cable option (Standard construction).
• 05: Agency approval option (Region-specific certification).

Hardware Specifications

Eddy-Current Probe Scaling and Signal Integrity

The 330130 extension cable maintains the characteristic impedance required for the 3300 XL proximity transducer system. Proper system operation relies on gap voltage validation, with target values typically centered at -10 VDC within the linear operating range. Deviations in cable length or impedance mismatch directly affect the rotor dynamics measurement accuracy. The design utilizes high-frequency shielding to provide cross-talk suppression in industrial environments, preventing external electromagnetic interference from introducing noise into the transducer signal path.

Frequently Asked Questions

Q: Does the cable length affect the Proximitor sensor calibration?

A: Yes. The 3300 XL system is calibrated as a matched set (Probe, Extension Cable, and Proximitor). Substituting cable lengths without recalibration or system reconfiguration will introduce errors in the output sensitivity (mV/mm).

Q: What is the requirement for cable routing near high-voltage lines?

A: To ensure signal integrity, cables should be routed in dedicated conduit, isolated from AC power lines. Maintain a minimum separation of 300 mm from high-voltage cables to minimize electromagnetic coupling.

Field Installation Guidelines

1. Ensure all connectors are clean and free of debris before assembly.
2. Finger-tighten the coaxial connectors. Do not use pliers or wrenches, as over-torquing can damage the internal dielectric or center pin contact.
3. Utilize the provided connector protectors to prevent the ingress of moisture or conductive contaminants, which can cause drift in gap voltage measurements.
4. Verify the total system length (Probe plus Extension Cable) aligns with the specific Proximitor model settings.
5. Secure the cable using appropriate clamps to prevent mechanical strain on the connector interfaces due to vibration.