EPRO PR6423/002-030-CN CON021

The EPRO PR6423/002-030-CN CON021 is a key component in a turbine monitoring system, specifically involving eddy current sensor and preprocessor applications. Here are the details about this combination:

Component description:
PR6423/002-030-CN: This is a vortex sensor model from EPRO that is commonly used to measure physical quantities in steam turbines, such as speed, shaft vibration and shaft displacement.
CON021: This is the preprocessor type number for use with the PR6423/002-030-CN. The preprocessor and sensor together form an oscillator whose amplitude decays as the sensor probe approaches the metal subject. The magnitude of the attenuation is proportional to the distance between the sensor and the measured object.
How it works:
The eddy current sensor (PR6423/002-030-CN) and the preprocessor (CON021) form an oscillator system. When the sensor probe is close to the metal subject, the amplitude of the oscillator changes in proportion to the distance between the sensor and the subject.
Before leaving the factory, the sensors and precursors have been linearly calibrated using the calibration material 42CrMo4, so it is usually not necessary to calibrate again during installation. The user only needs to adjust the air gap between the sensor and the measuring surface until the desired signal is obtained from the output of the preprocessor.
Technical features:
Linear error: The linear error of the preprocessor CON021 varies depending on the connection to the different sensor models. For example, when PR6423 is connected, the linear error is less than 1.0%.
Corrosion resistance: At room temperature, the sensor and cable have good corrosion resistance, and can be waterproof, moisture-proof, natural gas, helium, oil and benzene and other organic compounds.
Power supply and output: The power supply and output signal are connected through the screw terminal, and the preprocessor can output the AC voltage signal that is superimposed on the DC voltage and proportional to the shaft vibration.
Accuracy and response time: The preprocessor has a high precision and fast response time (such as 15 milliseconds) to ensure the accuracy and real-time measurement results.
Application scenario:
The EPRO PR6423/002-030-CN CON021 combination is commonly used in turbine monitoring systems to measure and monitor key parameters such as speed, shaft vibration, and shaft displacement to ensure the safe operation and performance optimization of the turbine.
Additional information:
Sensors and precursors can be installed in hazardous environments (but CON… / 91… Series preprocessor can not be used in explosion-proof situations).
The CON021 series precursors are IP20 protected and are connected to the sensor via a LEMO plug.