MODEL FX-311 FIBER OPTIC AMPLIFIERS Customer Friendly Manual Adjustable Fiber Amp. Fiber Optic Amplifiers 12-turn potentiometer has been incorporated for fine adjustments. It enables detection of very fine differences. Moreover, since the pointer of indicator has a red backlight, you can confirm the position at a glance, even in a dark area.

Long life and reduced maintenance work-hours The light-emitting elements of conventional fiber sensors are affected by temperature and long-term use, changing their emission over time and requiring sensitivity readjustment. FX-311 (red LED type) employs the new "four-chemical LED", first used in the FX-301 (red LED type). This emitter greatly reduces adverse influences on emission performance, resulting in stable operation that almost never needs adjustment. Rapid flashing "assist function" eases adjustment for optimum sensitivity The FX-311 series has a convenient built-in "assist function" which indicates the optimum sensitivity position by flashing rapidly when optimum sensitivity is reached. This enables easy and reliable sensitivity adjustment, which is convenient for a narrow sensing range requiring fine tuning. * In order enable the "assist function", switch the operation selection switch from L-ON¨D-ON¨L-ON .

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