Intrinsically Safe Shaft Speed Sensors
Featured Product from Electro-Sensors, Inc.
Electro-Sensors Series 18 shaft speed sensors are FM Approved Intrinsically Safe (IS),Class I, Div I A-G; Ex ia IIC.
Series 18 sensors detect passing magnets on a shaft-mounted pulser target, outputting a square-wave pulse signal with frequency proportional to the shaft rotation speed. All models operate down to (and including) zero speed.
Options include four M18x1 housings, Hall-effect and Magnetoresistive sensing, single or quadrature signaling and NPN (sinking) or PNP (sourcing) transistor outputs (open-collector or terminated).