Each measuring instrument must be set to 0% and 100%, then it is possible to measure. The vast majority of common devices is factory set so that basically there is no need perform these two acts.
Kila chombo cha kupimia lazima kuweka na 0% na 100%, basi ni Inawezekana kupima. idadi kubwa ya vifaa ya kawaida ni kiwanda kuweka hivyo Kwamba kimsingi hakuna haja Kufanya matendo ya hizi mbili.