6550U-10x-500

Operation ENG 55Active extension operation (Busch Watchdog ® ) with6805U-500 and FM Sensors:Since the Master and Extension always have a separatesetting for the dusk value, the actual brightness conditionsat the installation site must be taken into considerationindividually.The effective overtravel time is calculated by adding thetimes at the Master and Extension. When used inconjunction with FM Sensors 6800-xxx-104-500(M) orhigher, it is recommendable to operate the Extensions withthe shorttime impulse time setting if the times set at theMaster are to be adhered to as precisely as possible.Refer to the appurtenant Operating Instructions of therespective FM Sensor for further information.