Methanol, also known as wood spirit or wood alcohol, is a colorless, odorless, and volatile liquid medium. In order to reduce losses due to volatilization, many chemical companies use vertical storage tanks with an internal floating roof to store methanol. In this type of tank, the internal floating roof is floating on the liquid surface. To measure it, the radar level meter can be installed in two ways.
The first is installed in the guide tube for level measurement. If this method is used, the guide tube is run through the entire tank (from the top to the bottom) and through the float. This method of installation with the guide tube inside the guide tube minimizes interference and allows for accurate and direct level measurement.
However, this method of installation is quite complex and extremely costly in terms of investment and requires a good seal between the float opening and the outer wall of the guide tube.
Secondly, the radar level meter is installed directly on top of the tank. With this method of installation, the liquid level cannot be measured directly, only the height of the float can be measured. If you want to know the methanol level, you need to use the thickness of the float plus the height of the float measured.
This is one of the reasons, in addition, if the internal float is uneven or if there are angles present, the measurement will certainly be inaccurate. This is where a reflecting device is required. If so, the question of what material to use is another one that needs to be addressed.
Finally, with this type of installation, the volatility of the methanol will have an effect on the antenna and in order to determine the accuracy and stability of the measurement, the antenna needs to be cleaned regularly.
From this side of the content can be seen, the measurement of methanol, and radar level meter regardless of the choice of installation methods, there will be certain problems. Therefore, when choosing the installation method, it is important to choose the right and suitable one from the actual situation and budget cost of your own home.