EPRO PR6423/010-020-CN CON021 | Eddy Current Sensors

product description

The EPRO PR6423/010-020-CN CON021 eddy current sensor is a high-precision non-contact displacement and vibration measurement sensor designed by Germany’s EPRO (now part of Emerson Automation Solutions). It is equipped with the CON021 preamplifier and is suitable for monitoring shaft vibration and displacement in rotating machinery such as steam turbines and compressors, as well as for integration with TSI systems.

Core function
Non-contact measurement
Based on the principle of electromagnetic induction, by detecting the changes in eddy currents on the surface of the measured metal, high-precision measurement without physical contact is achieved, avoiding mechanical wear and having a lifespan of over 10 years (in typical industrial scenarios).
Measurement range: Supports micrometer-level resolution (such as 0.1μm), with a linear error of ≤±1%, meeting the requirements for precise monitoring.
Multi-parameter monitoring
Axis vibration monitoring: Real-time collection of radial vibration data of the rotating mechanical shaft, supporting high-frequency vibration measurement (typical range 0-10kHz), suitable for high-speed equipment such as gas turbines and steam turbines.
Axial displacement detection: Measuring the axial position change of the shaft, preventing equipment damage caused by axial movement.
Speed measurement: Through key signal input (requiring >13V), supports speed control and spectrum analysis.
Signal processing and output
Dynamic signal output: Provides two channels of 0-20Vpp dynamic signal output (AC1/AC2), used for spectrum analysis, with corresponding range and characteristic values.
Characteristic value output: Two channels of 0-20mA or 4-20mA current output (I1+/I1-, I2+/I2-), which can be set as characteristic values (such as vibration amplitude), linear representation of the characteristic values.
Voltage output: Two channels of 0-10V voltage output (EO1/EO2) represent characteristic values, and two channels of 0-10Vdc voltage output (NGL1/NGL2) are proportional to the distance between the sensor and the measured surface.
Alarm and protection functions
Dual-channel independent alarm: Each channel can set the alarm value and danger value separately, supporting alarm lag function (1-10% of full scale), avoiding false alarms caused by fluctuations of the measured value near the limit.
Limit multiplier: In special working conditions such as over-critical speed, the limit multiplier function can be activated (multiplier coefficient X = 1.00 – 5.00), temporarily increasing the alarm