Float level gauge methods - The float level gauge is one of the simplest methods of level measurement. The primary application of the float gauge is i
The float level gauge is one of the simplest methods of level measurement. The primary application of the float gauge is in open or vented tanks.
The gauge assembly consists of a float, which rests on the surface of the liquid, a tape connected to the float, and a counterweight over one or more pulleys as shown in figure.
The gauge has a scale mounted on the exterior of the tank and the counter weight acts as the level indicator.
If the application requires sealing of the gauge elements from the process liquid, there are magnetically coupled units for this service, as shown in figure. The advantages of this device are that no seal is required around the float and the float is completely protected from the process liquid.