EPRO PR6423/10R-010 CON021 Sensor System

The EPRO PR6423/10R-010 CON021, also cataloged as the PR6423 Eddy Current Transducer System, operates as a dedicated hardware component for non-contact shaft displacement and high-frequency vibration measurement within turbomachinery protection platforms.

Hardware Specifications

Eddy-Current Probe Scaling and Rotor Dynamics Integrity

The PR6423 proximity probe and CON021 signal converter assembly operates on electro-magnetic eddy-current probe scaling principles, outputting a high-sensitivity ~8 V/mm signal across a frequency response bandwidth extending up to 20 kHz. During rapid machine transients, precise gap voltage validation ensures that the static bias voltage remains centered within the linear measuring range, avoiding signal saturation during high-amplitude rotor dynamics events. The PEEK tip and stainless steel housing maintain dimensional stability under thermal load, while high cross-talk suppression allows multi-probe orthogonal installations for dual-plane shaft vibration analysis.

Frequently Asked Questions

Q: How does the CON021 signal converter handle raw eddy current signal processing?

A: The CON021 unit supplies high-frequency excitation voltage to the PR6423 sensor coil and demodulates gap distance variation into a linear output voltage scaled at approximately 8 V/mm for direct connection to monitoring equipment.

Q: What physical installation parameters must be observed regarding target clearance?

A: To prevent uncalibrated electromagnetic side-loading, ensure sufficient radial clearance around the PEEK probe tip from surrounding metallic enclosure walls, maintaining an unobstructed projection zone for the high-frequency sensing field.

Field Installation Guidelines

• Target Area Mechanical Inspection: Verify that the shaft target surface is ground smooth, demagnetized, and free of keyways, scratches, or mechanical runout prior to probe positioning.
• Mechanical Threading & Probe Securing: Thread the stainless steel probe body into the mounting bracket or gland. Set the static gap to the designated midpoint voltage before tightening locknuts to specified torque limits.
• Hazardous Area Cable Termination: Route interconnecting cables through grounded protective conduit. Connect cable shields at a single ground point within the monitoring cabinet panel to prevent circulating ground loops in ATEX/IECEx hazardous areas.