The Omron E3X-DA11AT-S 2M BY OMS is an advanced digital fiber amplifier from the E3X-DA-S series, designed for use with Omron fiber optic sensor heads . This model features ATC (Automatic Threshold Correction) function , which automatically compensates for changes in light intensity caused by LED degradation over time or contamination of the fiber tip, ensuring long-term, stable detection without manual adjustments .