| Liquid Level - The Benefits of Selection |
Viscosity is a measure of the resistance to flow of a substance. Viscosity can vary greatly from liquid to liquid, for instance water has low viscosity while vegetable oil has high viscosity. Fluids with high viscosity do not flow readily, so floats used in viscous liquids should have a rounded shape, to eliminate places fluid could pool. Switch operation can also be affected by a vessel's composition or components. Since a float switch consists of a magnet-containing float and the float's travel in the fluid magnetically actuates the reed switch, a vessel containing or made from magnetic materials can influence the switch's performance. Care must be taken that switches are not mounted too close to any coupling, fitting or tank wall whose properties could interfere with them. Customers should also take into consideration how the switch will be mounted. Are the vessel walls strong enough to support the switch? Is the vessel made of a material compatible with the switch? And what are the long-term effects of material build-up on the switch? This discussion of the scientific principles involved in the operation of liquid level float switches is by no means exhaustive. We hope it has given you a basic understanding of the many considerations that go into the design of our products. We also anticipate that this knowledge will help you to choose a liquid level float switch that provides reliable and long-lasting switch operation in each of your applications.
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