. OPERATION DETAILED CONTROLS AND GAUGES OPERATION DETAILED CONTROLS AND GAUGES the the If function switch F5 is pressed, the breaker mode is not set, and 3 - 28 REMARK When setting the worki mode, ensure safety, buzze r sounds and a t the same is displayed. nction switch same time, the messag e in illustration on mode, always the right press fu the screen returns to working mod e selection NOTIC When u sing the breaker, s et to B mode. I f B mode is not used, t here is danger that the breaker may bre