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光电开关GK122怎么用
图尔克光电开关
Q60AFSensors Long-Range Self-Contained Adjustable-Field Sensors Printed in USA 06/02 P/N 67003 rev. B Q60AFAdjustable-FieldFeatures ? Long-range adjustable-field background suppression sensor detects objects within a defined sensing field, while ignoring objects located beyond the sensing field cutoff ? Two-turn, logarithmic adjustment of sensing field cutoff point from 0.2 to 2 m; allows easy set