Intrinsically safe level switchWith two-wire, 4-20 ma loop power electronics, the NuTec insertion level switch promises to meet oil field intrinsic safety requirements.The Model LS2000 switch helps eliminate expensive instrument conduit runs in explosive environments, the company says. The switch is also suited for retrofitting two-wire mechanical float and flow paddle switches without changing or adding wires.Combining accuracy with reliability, the LS2000 is designed for service in nearly all fluid wet or dry applications. It is responsive as well, >500 ms maximum following a step change in level. It operates at temperatures of 40-250° F. and at operating pressures as high as 500 ps...

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