1. When the tested medium has a corrosive effect on the transmitter connector and sensitive components;

2. When it is necessary to isolate the high-temperature measured medium from the transmitter;

3. When there are solid suspended solids or high viscosity in the measured medium that can easily block the transmitter connector and pressure chamber;

4. When the tested medium is easily solidified or crystallized when led out with a pressure tube;

5. When replacing the tested medium, it is necessary to rinse and not mix it together;

6. Hygiene conditions must be maintained to prevent contamination.

Liquid level transmitter is an extension and development of pressure transmitter technology. Based on the principle that the pressure generated by liquids with different densities at different heights is linearly related, it achieves accurate measurement and transmission of the volume, liquid height, and weight of water, oil, and paste. It is suitable for measuring flow rate, liquid level, and pressure (differential pressure, gauge pressure, and absolute pressure), and is an ideal measuring instrument in fields such as petroleum, chemical, metallurgy, power plants, light industry, and municipal engineering.