The SP Series Thermal Dispersion Flow Switch from Aplus Finetek is designed for monitoring flow/no-flow conditions of liquids in pipes and other conduits with no moving parts for a longer life and enhanced reliability. The SP series flow switch uses proven thermal dispersion flow detection technology to detect flow and no-flow conditions. The adjustable sensitivity and alarm threshold make it applicable in most flow detection applications. Two thermal sensing elements are contained within the single probe element. One is maintained at a constant temperature and the other varies with the fluid flow. The temperature difference is related to flow. The SP series can be provided with solid state switch or relay alarm output.
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