Fluid Components International”s FlexSwitch FLT93S Flow/Level/Temperature Switch performsmonitoring, controlling and alarming of flowrates or levels of criticalfluids such as foams, emulsion layers, liquids and slurries. A ruggedindustrial design and housing provide reliability and long service lifeunder the harsh plant environments in chemical refining, wastetreatment and other industries. Theswitch is a dual-function, insertion-style instrument that offerseither flow/temperature sensing or level/temperature sensing in asingle device. The switch measures and monitors flow or level andtemperature simultaneously. Unlikedensity displacers, which are often used for level and interfacecontrol, the switch relies on the specific heat transfer properties ofthe media to identify the interface of different products. Withthermal-dispersion sensing capability, the switch monitors theinterface of products with similar densities for highly reliablecontrol in separation tanks and other vessels. The switchoperates over a setpoint range in water from 0.01 to 0.5 FPS (0.003 to0.9 MPS). Level/interface accuracy is +/-0.25 inch (+/-6.4 mm), andmeasurement repeatability is +/-0.125 inch (+/-3.2 mm). The standardmodel withstands operating temperatures from -40 F to 350 F (-40 C to177 C), and an optional configuration is available for temperaturesfrom -100 F to 850 F (-73 C to 454 C).
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