... active total electricity quantity2) Time and data :a) Clock:a) Second,minute,hour,week,day,month,yearb) Recognized automatically in ... leap yearc) Clock with compensationd) Broadcast time only one time one day, time range is 5 minutes/dayb) Rate:a) ... after readingData from opening terminal cover ).Weak battery ( real-time indication when power on , it can keeporiginal state afterPower interruption ...