Emerson PR 9376 series eddy current sensor system



Emerson PR 9376 series eddy current sensor system

PR 9376 series eddy current sensor system

System Overview: The PR 9376 series is a non-contact vibration and displacement measurement system based on the principle of eddy current. It consists of sensors, extension cables, and preamplifiers, and is used to monitor parameters such as shaft vibration, shaft displacement, key phase, and speed of rotating machinery. It is suitable for large rotating equipment such as steam turbines, generators, and compressors.

Core Features

By using the eddy current effect, non-contact measurement can be achieved, which is not affected by the medium and has high measurement accuracy.

The working temperature range is wide, and the sensor can operate in an environment of -30 ° C to+150 ° C. The working temperature of the preamplifier is -5 ° C to+65 ° C.

Having good linearity and stability, the linear error is usually less than 1%, and the long-term stability error is less than 0.1% per year.

Supporting multiple installation methods, radial or axial installation can be selected according to on-site requirements.

Technical parameters: The measurement range usually includes various specifications such as 0-2mm and 0-5mm; The sensitivity is generally 8mV/μ m or 4mV/μ m; The frequency response range is wide, covering 0-10kHz, meeting the measurement needs of different devices.

MMS 6000 monitoring module

Module function: The MMS 6000 monitoring module is the core component of the rotating machinery status monitoring system, which can be used in conjunction with PR 9376 series sensors to achieve real-time collection, processing, and analysis of equipment vibration, displacement, temperature, and other parameters.

Main Features

Capable of multi-channel input, capable of monitoring parameters from multiple measurement points simultaneously.

Built in multiple signal processing algorithms, capable of filtering, amplifying, integrating, differentiating, and extracting effective feature parameters from raw signals.

Support alarm function, can emit sound and light alarm signals according to preset thresholds, timely reminding operators of equipment abnormalities.

Equipped with data storage and communication functions, monitoring data can be stored locally or uploaded to the upper computer system for easy historical data query and trend analysis.

System application and precautions

Application scenario: Widely used for monitoring the status of large rotating machinery in industries such as power, petrochemicals, and metallurgy, helping users detect potential equipment failures in advance, reducing downtime, and improving equipment reliability.

Precautions

When installing sensors, it is necessary to ensure that the distance between the sensor and the object being measured is within the effective measurement range, in order to avoid affecting the measurement accuracy due to the distance being too close or too far.

The length and model of the extension cable should be selected according to the requirements of the sensor and preamplifier to ensure stable signal transmission.

Regular calibration and maintenance are required during system operation to ensure the accuracy and reliability of measurement data.