Woodward speed sensors

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New SIL certifiable MPU speed sensors are now available for installation in ordinary or hazardous locations to sense turbine speed. These Woodward speed sensors are designed for use in SIL-3, SIL-2, or SIL-1 (safety integrity level) rated turbine safety systems. When applied with a SIL rated logic solver and final element, users can easily create an overspeed safety instrumented function (SIF) which meets the required safety integrity level for the specific application. As these variable-reluctance (VR) speed sensors do not utilize active components, they have a low failure rate, making them ideal for use in safety systems requiring long system life and low probability of failure on demand (PFD) values. Contact your local Woodward representative for more information.