EPRO PR9350-02 Inductive Shaft Displacement Sensor

The EPRO PR9350-02, also cataloged as the PR9350 Inductive Sensor, operates as a dedicated hardware component for measuring radial and axial shaft displacement within turbomachinery condition monitoring systems. Operating on an AC carrier excitation signal, the unit continuously converts mechanical shaft movement into linear electrical signals for machinery protection platforms.

Hardware Specifications

Eddy-Current Probe Scaling and Rotor Dynamics

The EPRO PR9350-02 inductive transducer configuration utilizes a carrier-frequency AC excitation architecture engineered for high-amplitude rotor dynamics tracking. Gap voltage validation and linear displacement output depend on maintaining a stable carrier signal between 3 kHz and 5 kHz across the internal windings. Solid-state winding balance and symmetrical capacitance profiling (250 pF per winding) prevent signal distortion and maintain cross-talk suppression during rapid axial thrust and radial offset changes on heavy industrial turbomachinery.

Frequently Asked Questions

Q: What type of excitation signal is required to drive the PR9350-02 sensor?

A: The sensor requires a regulated 5 Vrms AC carrier excitation voltage operating within a frequency band of 3 kHz to 5 kHz supplied by the signal conditioning driver.

Q: How is the target slug mechanically coupled to the shaft?

A: The sensor target features an M3 thread designed to securely attach a ferromagnetic slug directly to the rotating or reciprocating shaft monitoring point.

Field Installation Guidelines

1. Mount the transducer housing using the M4 threaded fixing holes on a rigid bracket to eliminate mechanical vibration resonance.
2. Thread the ferromagnetic target slug onto the shaft measurement node via the M3 threaded fitting, ensuring thread sealant or lock washers are applied.
3. Center the slug within the transducer displacement barrel to establish the electrical null position prior to applying carrier voltage.
4. Connect the winding leads to the carrier amplifier using shielded twisted-pair cable, terminating the cable braid at the panel system ground point only.