EJA120A micro differential pressure transmitter is a high-performance differential pressure measuring instrument widely used for measuring liquid level, flow rate, and pressure difference. This transmitter is particularly suitable for complex working conditions that require precise differential pressure measurement, such as industries such as petroleum, chemical, and power.

1、 Working principle

　　EJA120A Micro Differential Pressure TransmitterThe core principle is to accurately measure the pressure difference between two points through differential pressure sensing technology and convert it into a standardized electrical signal output. Its main working principle is as follows:

1. Differential pressure sensing element: High precision silicon micro mechanical pressure sensors (MEMS) are used, which can measure differential pressure signals very sensitively. Differential pressure sensors obtain relevant information about liquid level or flow rate by measuring the pressure difference on both sides.

2. Pressure conversion: When the differential pressure sensor senses the pressure difference from the measured medium, the strain gauges inside the sensor will generate a small electrical signal. This electrical signal will be further processed through electronic circuits and converted into a standard signal that can be transmitted.

3. Compensation and calibration: In order to ensure the accuracy of signal output, a high-precision compensation system is built in. It can compensate for the effects of temperature changes, nonlinearity, and other factors on measurement results, ensuring the accuracy of differential pressure data.

4. Signal output: The differential pressure signal is transmitted to the upper control system or monitoring platform through digital or analog signal output results, for real-time monitoring and analysis by the operator.

2、 Technical advantages

The EJA120A micro differential pressure transmitter, with its precise measurement, strong adaptability, and advanced technology, has multiple technical advantages and can meet the needs of various complex industrial environments.

1. High precision and high stability: able to accurately measure small pressure difference changes, ensuring the reliability and stability of data. This is crucial for precise measurements such as liquid level, flow rate, and density, especially in industries such as chemical and pharmaceutical. Accurate differential pressure data is the foundation for ensuring the stability and safety of the production process.

2. Excellent anti-interference ability: In industrial sites, there are often a large number of factors such as electromagnetic interference and vibration. It adopts a strong anti-interference design, which can effectively resist external interference and ensure the accuracy of measurement results. Its sensor module can work stably under harsh conditions such as high temperature and corrosive environment, and has strong adaptability.

3. Intelligent diagnostic function: Built in intelligent diagnostic function, capable of automatically detecting one's own health status, including fault diagnosis, maintenance warning, etc. This function can effectively prevent equipment failures, reduce downtime, and provide detailed fault information for maintenance personnel to quickly repair.

The EJA120A micro differential pressure transmitter plays an important role in industrial automation due to its high precision, high stability, strong anti-interference ability, and intelligent functions. Whether in liquid level measurement, flow monitoring, or precision differential pressure measurement in complex environments, it can provide reliable performance support.