EPRO PR6423/00R-010+CON021 8mm Eddy Current Sensor System

Configured for non-contact radial and axial shaft displacement, position, eccentricity, and speed monitoring in critical turbomachinery protection applications, the EPRO PR6423/00R-010+CON021 (PR6423 8mm Eddy Current Sensor System) provides direct physical/electrical execution.

Hardware Specifications

Eddy-Current Probe Scaling and Rotor Dynamics Integrity

The PR6423 8mm transducer operates in tandem with the CON021 signal converter using electro-magnetic eddy-current probe scaling to translate spatial gap variations into linear voltage changes outputting at 8 V/mm (203.2 mV/mil). Built to capture fast transient rotor dynamics and peak dynamic vibrations, the system delivers a wide frequency response spanning 0 to 20,000 Hz (-3 dB) with a rise time under 15 us. Gap voltage validation during physical commissioning dictates calibrating the static bias output within either the -4 VDC to -20 VDC or -2 VDC to -18 VDC operating windows. High internal circuit balance guarantees strict cross-talk suppression when installing multiple probe pairs across dual-plane X-Y bearing arrangements.

Frequently Asked Questions

Q: What are the primary connection interfaces on the CON021 converter unit?

A: The probe connection utilizes a self-locking Lemo-plug interface, while power supply and output signal lines connect via screw terminal blocks accepting wire cross-sections up to 1.5 mm with wire-end sleeves.

Q: What supply voltage configurations are supported and how do they alter the output voltage range?

A: Supplying -23 VDC to -32 VDC yields a standardized output span of -4 VDC to -20 VDC. Alternatively, supplying -21 VDC to -32 VDC shifts the converter output span to -2 VDC to -18 VDC.

Field Installation Guidelines

• Target Surface Inspection: Verify that the shaft target track is smooth, polished, and free of magnetism, tool marks, and scratches to prevent parasitic runoff spikes on the dynamic vibration channel.
• Converter Module Mounting: Secure the CON021 converter housing inside an IP65/NEMA-rated enclosure using the four supplied M5x20 mounting screws to protect its IP20 aluminum chassis against environmental ingress.
• Cable Strain Relief and Shielding: Route probe extension cables away from high-voltage supply lines. Terminate cable shields at a single point inside the monitoring panel terminal block to eliminate circulating ground loops.