EPRO CON-011 Eddy Current Signal Converter

Configured for radial/axial shaft displacement, position, and speed monitoring in turbomachinery protection systems, the EPRO CON-011 (CON011 Signal Converter) provides direct physical/electrical execution. The module conditions raw high-frequency signals from eddy current sensors into standardized negative DC voltage outputs, transforming physical target proximity changes into calibrated dynamic signals for host monitoring racks.

Hardware Specifications

Rotor Dynamics & Eddy-Current Probe Scaling

High-speed vibration and rotor dynamics measurement relies on linear eddy-current probe scaling matched across a 0 to 20,000 Hz (-3 dB) frequency sweep. Field setup requires initial gap voltage validation (-10 VDC targets) measured at the CON-011 output terminals to verify that the connected probe sits at the center of its linear dynamic range. Precise impedance conversion and signal conditioning ensure cross-talk suppression between orthogonal X and Y proximity probe channels installed on machine bearing pedestals.

Frequently Asked Questions

Q: How does the power supply voltage selection alter the converter output voltage range?

A: Applying a supply voltage between -23 VDC and -32 VDC establishes an output signal range of -4 VDC to -20 VDC, while an alternate supply between -21 VDC and -32 VDC sets the output signal range to -2 VDC to -18 VDC.

Q: Are there specific sensor constraints when matching probes to the CON-011 converter?

A: Standard PR6422, PR6423, PR6424, and PR6426 sensors connect directly, whereas the PR6425 probe requires an extended range converter configuration (CON011/91x series).

Q: What field wiring connections are supported for power and signal output lines?

A: Power supply and signal output lines terminate at internal spring-type terminal blocks accepting wire cross-sections up to 1.5 mm2, while sensor inputs connect via a self-locking Lemo plug.

Field Installation Guidelines

• Enclosure Mechanical Mounting: Mount the GD-ALS9Cu3 aluminum housing securely using four M5x20 screws to preserve IP65 seal performance and resist up to 5g at 60 Hz vibration loads.
• Transducer Port Engagement: Align and push the sensor Lemo plug straight into the mating receptacle until the self-locking collar fully latches; do not twist during insertion.
• Spring Terminal Termination: Insert stripped conductors (up to 1.5 mm2) cleanly into the spring clamps to ensure a gas-tight, vibration-resistant electrical connection without loose wire strands.
• Cable Shield Isolation: Terminate signal cable drain wires at the designated instrument panel ground bus while maintaining continuous shielding around field wiring runs to reject electromagnetic interference.