Description

Configured for non-contacting vibration and displacement measurement in rotating machinery protection networks, the Bently Nevada 200350-02-00-00 (200350 Proximity Transducer System Extension Cable) provides direct physical/electrical execution. This hardware component links a proximity probe to a Proximitor sensor, establishing an electrical transmission pathway for radio frequency signals. The component maintains impedance matching across the entire circuit length to prevent signal attenuation and measurement distortion in dynamic industrial environments.

Hardware Specifications

Eddy-Current Probe Scaling and Rotor Dynamics Integration

The cable configuration directly affects the eddy-current probe scaling because the Proximitor sensor calibrates to a specific total electrical length. When integrating the component into rotor dynamics monitoring systems, engineers must perform gap voltage validation to confirm calibration accuracy. A deviation from the matched electrical length alters the nominal -10 VDC target gap voltage, resulting in incorrect scale factors expressed in mV/mil or mV/micrometer. Furthermore, the internal coaxial construction provides cross-talk suppression between adjacent probe circuits, preventing signal interference when measuring orthogonal radial vibration vectors.

Frequently Asked Questions

Q: Can the 200350-02-00-00 extension cable be shortened or spliced in the field if the length is too long for the installation?

A: No, field splicing or trimming is strictly prohibited. The Proximitor sensor relies on a precise electrical length to maintain the correct calibration scale factor. Cutting or modifying the cable alters the system capacitance and impedance, which compromises the accuracy of the vibration measurement.

Q: What is the significance of the -02-00-00 suffix in the part number?

A: The -02 option designates a total physical cable length of 2.0 meters. The subsequent -00 options signify that the cable does not include stainless steel fluid-tight armor and utilizes standard miniature coaxial connectors without connector protectors.

Field Installation Guidelines

• Minimum Bend Radius: Observe a strict minimum bend radius of 25.4 mm (1.0 in) during routing to prevent internal dielectric damage or outer jacket tearing.
• Terminal Grounding and Shielding: Terminate the coaxial shields exclusively at the Proximitor sensor end within the interface housing. Do not allow the cable connectors to contact structural metal surfaces or conduit boxes, as this creates ground loops that corrupt the dynamic signal.
• Connector Torque: Connect the miniature coaxial fittings by hand until finger-tight, then apply a final quarter-turn using standard terminal tools. Do not use pliers, which can deform the gold-plated center pins.
• Conduit Routing: Route the extension cable inside dedicated, grounded metal conduits separate from high-voltage AC power wiring to eliminate electromagnetic noise injection.