EPRO CON021+PR6423/003-110 Eddy Current Sensor System

The EPR0 cON021+PR6423/003-110, also cataloged as the cON021+PR6423/003-110 Non-Contact Eddy Current Sensor System, serves as the primary cON021 Non-Contact Eddy Current Sensor System utilized to execute vibration monitoring, shaft displacement measurement, and position tracking across critical turbomachinery platforms.

Hardware Specifications

Mechanical Monitoring and TSI Architecture

• Eddy-Current Probe Scaling and Sensitivity The system pairs the physical PR6423 displacement sensor with the cON021 signal converter to translate proximity variances into stable analog telemetry. Calibrated to an exact sensitivity of 8 V/mm, the eddy-current probe tracks micro-level dynamic changes over a 2 mm linear measurement range, converting raw inductive modulations into calibrated voltage signals.
• Gap Voltage Validation and Calibration The internal conversion block processes input supply rails between -23 VDC and -32 VDC to establish structural biasing for the probe tip. Field engineers utilize the output voltage range (-4V to -20V or -2V to -18V) to perform gap voltage validation, verifying the 0.5 mm initial air gap calibration to ensure the sensor tip operates within its linear electrical zone.
• High-Frequency Rotor Dynamics Tracking Optimized for advanced rotor dynamics and shaft vibration profiling, the signal converter features a wide frequency response range of 0 to 20000 Hz. Coupled with a transient rise time of less than 15 microseconds, the module captures high-velocity shaft deflections, oil whip phenomena, and unbalance harmonics before cross-talk suppression subroutines filter the data for the master TSI rack.

Frequently Asked Questions

Q: Can the cON021 signal converter be mounted directly on the exterior skin of a steam turbine casing?

A: No. The cON021 converter carries an IP20 protection class rating and an upper operating temperature threshold of +100 deg C. It must be mounted inside a secondary, weather-proof junction box or marshalling enclosure to isolate its circuit cards from moisture, dust, and localized high-temperature radiant heat.

Q: How does a loose connection at the self-locking Lemo-Plug affect the output telemetry?

A: A loose or contaminated Lemo-Plug interface alters the characteristic RF impedance of the transducer cable. This impedance shift introduces voltage spikes or causes the output voltage to saturate toward the supply rail, mimicking a severe shaft displacement fault and triggering false alarms within the monitoring rack.