... openning all the way,Capacitance is AC220V,5A),The Operating time is 50million .6.Operating Temperature:-10+507.Subtrahend Range:999990 ... current flash bit left one, the first one → Page 2 → Page 2 → Page 4 → Page 1 cycle, but also can "to a few" key ... reduced to 00000, relay closed, the screen displays "-----", at this time follow the "reset button (preset number of settings)," Manual Reset ...