Description
EPRO PR6423003-110+CON021
Technical Specifications Model: PR6423003-110 probe + CON021 signal converter Measurement Principle: Eddy current non-contact measurement Probe Integrated Cable Length: 3 meters Measuring Range: 0 ~ 2mm Output Signal: 4-20mA or 0~10V analog signal Power Supply for CON021: -24VDC Probe Operating Temperature: -35℃ ~ +180℃ Converter Operating Temperature: -20℃ ~ +65℃ Storage Temperature: -40℃ ~ +85℃ Relative Humidity: 5% ~ 95% non-condensing Probe Protection Grade: IP67 Mounting Type: Threaded probe installation, DIN rail mounting for CON021
Functional Features Non-contact measurement, no mechanical wear between probe and rotating shaft. High temperature resistant probe body suitable for installation on high-temperature bearing housing. 3-meter integrated shielded coaxial cable meets medium-distance wiring requirement. CON021 converter processes probe high-frequency signal and outputs standard analog signal compatible with monitoring modules. Built-in cable break detection function outputs fault alarm when probe cable is damaged. High measurement resolution captures micrometer-level shaft vibration displacement. Strong anti-electromagnetic interference performance for industrial site environment. Linear calibration function for ferromagnetic metal target surface.
Application Scenarios Steam turbine shaft vibration monitoring, centrifugal compressor shaft displacement protection, large generator condition monitoring, gas turbine online monitoring system, large fan and pump vibration protection system.
Performance Parameters High linearity within full measuring range. Micrometer-level displacement resolution for tiny vibration detection. Cable break detection reliably identifies cable damage and triggers fault signal. Output analog signal maintains stable linear relation with gap variation after long-time continuous operation. Probe body keeps stable performance under high temperature and vibration environment. CON021 converter outputs standard analog signal for most industrial vibration monitoring systems.
Material Composition Probe housing: High temperature resistant stainless steel alloy. Sensing coil: High temperature enameled copper winding encapsulated in ceramic. Probe cable: Fluorine plastic insulated shielded coaxial cable. housing: Aluminum alloy metal casing with anodizing treatment. PCB inside converter: FR4 multi-layer printed circuit board with conformal coating. Core Electronic Components: High-frequency oscillation chip, signal conditioning circuit, A/D converter, analog output driving chip, cable fault detection circuit. Fasteners: Stainless steel probe lock nut, DIN rail clip for converter. Insulating material: High temperature ceramic and fluorine plastic insulator.
Structural Features Probe adopts cylindrical threaded metal structure, ceramic tip encapsulates sensing coil. 3-meter integrated shielded coaxial cable extends from probe rear end. converter is rectangular aluminum casing with DIN rail clip on back side. Terminal block arranged on converter side for power supply and analog signal wiring. Internal circuit of converter separates high-frequency excitation circuit and analog output circuit.
Working Principle signal converter generates high-frequency alternating excitation current and transmits it to probe coil through 3-meter coaxial cable. Alternating magnetic field radiates from probe tip. Eddy current is induced on metal shaft surface near probe tip. Eddy current produces reverse magnetic field and changes impedance of probe coil. The coil impedance value changes linearly with gap between probe tip and metal shaft. The converter detects coil impedance variation, calculates gap value and converts measurement result into standard analog signal. If probe cable breaks, fault detection circuit detects abnormal coil impedance and outputs fault state. Upper monitoring system receives analog signal and calculates shaft vibration and shaft position value.
Installation Requirements Screw PR6423003-110 probe into threaded hole of bearing housing, adjust probe tip and shaft gap into working range, tighten lock nut. Lay 3-meter coaxial cable inside protection conduit, avoid sharp bending and tensile pulling. Mount converter on DIN rail inside control cabinet, keep away from high power heat source and high voltage cable. Connect -24VDC power supply and analog signal output wiring to converter terminal block. Use shielded twisted pair cable for analog signal transmission, single-point grounding of shielding layer. Set target material parameter in monitoring system according to shaft metal material. Complete gap calibration with standard target block before machine startup.
Usage Precautions Probe tip must not touch rotating shaft during machine running, collision will permanently damage probe coil and ceramic tip. Do not pull, squeeze or bend coaxial cable below minimum bending radius. Cutting and splicing integrated coaxial cable is forbidden, which destroys measurement linearity. converter must be installed inside cabinet within rated temperature range. Check probe installation gap and cable integrity during regular equipment maintenance. Strong magnetic field near probe installation point affects measurement precision. Calibration is mandatory after probe replacement.
