The FLT93 Series FlexSwitch from Fluid Components International (FCI) is a flow/level/temperature switch for use in liquid, air and gas. The FlexSwitch provides relief valve monitoring and flare gas flow or leakage detection for petrochemical industry process and plant engineers in oil/gas upstream production or downstream refining, storage and distribution or in other rugged industries with high-reliability instrumentation requirements. The heavy-duty thermal dispersion technology flow and level switch is SIL2 rated for ultra-reliability. Ex agency approvals are provided for the entire instrument—FM, FMc, ATEX, IECEx and more. A dual-function instrument, the flow/level/temperature switch can be configured for flow or level sensing, flow + temperature sensing or level + temperature sensing. A single FLT measures and monitors flow or level and temperature simultaneously. Dual trip points and 6A relay outputs are standard and are assignable to flow, level or temperature. FCI’s sensor technology provides flow accuracy as precise as +/-2 percent of the setpoint velocity over +/-50 F [+/-28 C] temperature range; repeatability of +/-0.5 percent reading. Level resolution is +/-0.1 inch (+/-2.5 mm); repeatability of +/-0.05 inch (+/-1.3 mm). Standard temperature accuracy is +/-2.0 F (+/-1 C); repeatability +/-1.0 F (+/-0.6 C); improved temperature accuracy is available with factory calibration.