Asisebenze ngaphakathi kwesizwe esikhulu, setha i-multimeter ngaphakathi kwebanga le-voltage, joyina ukubheka ipeni kupulaki ye-Anderson endaweni futhi ye-UPS, kanye nedigri kanye ne-DC voltage efinyelela i-UPS. Ngalesi sikhathi, umlingisi oyedwa ubuka umbukiso we-multimeter, futhi okuphambene kuqaqe umugqa wokungena we-UPS, futhi ibheka umbukiso we-multimeter ngesikhathi sokuhluleka kwamandla. Uma intengo ye-voltage yehla kakhulu ngokushesha, isondela ukuthi kunenkinga ngebhethri. Uma inkinga yobudlelwano ingase iqedwe, kanye nebhethri Sekuyiminyaka cishe isetshenziswa, ukuze ufune ukukhumbula ukushintsha iphakethe lebhethri.