EPRO pr6423 / 000-000 Current Sensor

The EPRO PR6423/000-000 serves as the primary PR6423 Eddy Current Sensor utilized to execute non-contact shaft vibration and displacement measurement across machinery protection and TSI platforms. The module detects physical air-gap variations between the PEEK probe tip and target conductive shaft surfaces, converting mechanical displacement into high-frequency inductive impedance shifts.

Hardware Specifications

Rotor Dynamics & Eddy-Current Probe Scaling

Precise rotor dynamics measurement requires linear eddy-current probe scaling aligned with target target conductivity and target geometry. The sensor operates across a 0 to 3 mm measuring sweep, outputting a calibrated sensitivity of 7.87 V/mm (200 mV/mil) into an associated driver module. Installation bias verification relies on gap voltage validation (-10 VDC targets) within the mid-scale output window of -2 VDC to -18 VDC to maintain linear dynamic response. Proper mechanical positioning suppresses cross-talk noise between adjacent radial X-Y probe channels mounted on rotating equipment bearing pedestals.

Frequently Asked Questions

Q: What output voltage range corresponds to the sensor's linear measuring sweep?

A: The sensor produces a modulated output voltage range of -2 VDC to -18 VDC across its nominal 0 to 3 mm measurement gap when powered by a standard -24 VDC driver loop.

Q: Can the probe withstand direct exposure to harsh industrial liquids and extreme temperatures?

A: Yes, the sensor features an IP67 protection rating with a PEEK probe tip material construction rated for continuous operation in process temperatures ranging from -35 deg C to +180 deg C.

Field Installation Guidelines

• Mechanical Thread Engagement: Thread the 5 mm probe housing into the mounting bracket using hand force until initial contact, then back off to set the target static gap before securing the locking nut with standard NPT thread engagement rules.
• Gap Voltage Alignment: Apply -24 VDC power to the driving converter and adjust the probe position until the quiescent signal voltage measures -10 VDC, placing the sensor at the midpoint of its linear range.
• Cable Strain and Bend Limits: Route the 3 m integral cable through rigid electrical conduit, ensuring a minimum bend radius of 30 mm to prevent internal conductor shearing or shield degradation.
• Shielding Integrity: Connect the outer cable shield directly to the dedicated instrumentation Earth bus bar at the monitor panel side only to eliminate parasitic ground loops.