What is the difference in the structure of the high temperature magnetic inductive flowmeter?

Project Overview

Compared with standard electromagnetic flowmeters, high-temperature electromagnetic flowmeters will have some specific adjustments in design to adapt to working conditions in high-temperature environments to ensure measurement accuracy and long-term stable operation of the equipment. A significant difference lies in its split design in structure, that is, the sensor and converter (or meter) are arranged separately.

In high-temperature applications, since the measured medium may have a high temperature, this will pose a threat to electronic components, because general electronic components cannot withstand extreme high temperatures. In order to avoid high temperature damage to sensitive electronic components such as circuit boards in converters, high-temperature electromagnetic flowmeters usually adopt a split structure. This means that the sensor part can be installed directly on the pipe of the high-temperature fluid, while the converter (containing the signal processing and display unit) is installed in a safe location away from the high-temperature source and connected through a dedicated cable. Such a design allows the sensor to withstand high-temperature media while protecting electronic components from thermal damage, thereby ensuring normal operation of the device and measurement accuracy.

In addition, the sensor part of the high-temperature electromagnetic flowmeter may be made of high-temperature-resistant materials, such as special insulation materials and corrosion-resistant electrode materials, to withstand the corrosion and mechanical stress of high-temperature media. At the same time, in order to cope with higher temperatures, its sealing technology will be more stringent to prevent sealing failure caused by thermal expansion.

In summary, the main structural difference of the high-temperature electromagnetic flowmeter is the split design, which separates the sensor from the converter, and uses high-temperature resistant materials and enhanced sealing technology to ensure that it operates in high-temperature environments. Flow measurement can still be performed stably and accurately.