Electronic rotameter meets modern industry demand to have digital flow indicator also with various outputs for different process control. These rugged electronic metal meters are mechanical devices that provide flow measuring services for various fluids. They are unique in their ability to measure flow rates in high pressure and temperature conditions. They also provide safe and easy installation plans for a wide range of industries.
A sharp-edged tube made from metal, a conical float suspended inside the tube and a sensor are the characteristic parts of this flow meter. This design favors better stability than the other forms that include glass tubes and plastic tube meters. Their action is based on variable area principle. The flow of water causes a lift in the float until its weight and buoyancy establish the equilibrium. The height of the float varies according to the flow and this height is the major factor determining the flow rate. Thus variable area of float helps in the calculation of rate of flow of liquid. Electronic variable area flow meter has various output ,such as 4-20mA or alarm relays.
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