在校秤時首先進行“調零”，以清除皮帶張力、積塵、秤架形變、系統溫漂等方面的影響。然后校準電子皮帶秤自稱重(zhong)(zhong)傳感(gan)器至PC裝(zhuang)置各系(xi)(xi)(xi)統中(zhong)對標(biao)(biao)準砝碼(ma)(ma)重(zhong)(zhong)量(liang)(liang)的檢測結果。由于標(biao)(biao)準砝碼(ma)(ma)的重(zhong)(zhong)量(liang)(liang)（即調試參(can)數的中(zhong)砝碼(ma)(ma)重(zhong)(zhong)量(liang)(liang)）已預(yu)先置入PC裝(zhuang)置的CPU內存。因此當(dang)PC裝(zhuang)置對該標(biao)(biao)準砝碼(ma)(ma)進行校準時(shi)，若(ruo)檢測結果較(jiao)實測重(zhong)(zhong)量(liang)(liang)變(bian)重(zhong)(zhong)，則系(xi)(xi)(xi)統將(jiang)重(zhong)(zhong)量(liang)(liang)修(xiu)正系(xi)(xi)(xi)數自動變(bian)小(xiao)，反之則變(bian)大，以使重(zhong)(zhong)量(liang)(liang)檢測值與標(biao)(biao)準砝碼(ma)(ma)重(zhong)(zhong)量(liang)(liang)相(xiang)等。該系(xi)(xi)(xi)數修(xiu)正工作可由PC裝(zhuang)置自動完(wan)成。