Description
EPRO CON041
Technical Specifications Negative supply voltage -23 VDC to -32 VDC; analog output range -4 V to -20 V; bandwidth 0 Hz to 20 kHz; rise time below 15 μs; linearity tolerance ±1.5% full scale; operating temperature -30 ℃ to +100 ℃; probe connection via Lemo connector; fault detection for open and shorted probe cables; certified for explosion-hazard industrial zones.
Functional Features Onboard temperature drift compensation for probe sensitivity; configurable analog filter bandwidth for vibration measurement; cable fault diagnosis output to DCS or protection rack; high signal drive capability for long transducer extension cables; output voltage scaling matches standard machinery monitoring rack input requirements.
Application Scenarios Gas turbine thrust bearing axial displacement monitoring, large motor shaft vibration measurement, reciprocating compressor crosshead position monitoring, critical rotating asset protection systems.
Material Composition Die-cast magnesium alloy enclosure; industrial signal conditioning PCB; precision reference voltage components; self-locking Lemo probe connector; insulated screw terminals for power and signal output.
Structural Characteristics Panel mount metal box; front Lemo port for probe assembly; side terminal strip for power supply and analog output; four-point screw mounting pattern; internal circuit potting improves vibration resistance.
Working Principle High-frequency oscillator drives the probe coil. Eddy current induced in the rotating metal target alters coil impedance. The conditioning circuit converts impedance variation into continuous analog voltage proportional to physical clearance. Fault comparator circuits flag cable discontinuity.
Installation Requirements Install in vibration-damped control cabinet; use specified EPRO extension cable without splices; single-point shield grounding of transducer cable; maintain clearance from high-current contactors and variable frequency drives.
Operation Notes Do not substitute non-compatible third-party eddy current probes; perform gap calibration with feeler gauges after installation; check terminal screw tightness during scheduled machinery outages.
