nke
Koodu mkpu SPM 19, 20.
Voltaji na-akwụ ụgwọ nke oge U (koodu mkpu 19) na V oge (koodu oti mkpu 20) sekit nchọpụta ugbu a dị oke ukwuu. Chọpụta mgbe agbanyere ya.
Mgbe oti mkpu mere, biko dochie SPM.Mgbe ka edochiri bọọdụ sekit ebipụta njikwa SPM, biko kwado ntinye nke njikọ n'etiti igwe ọkụ na bọọdụ sekit e biri ebi SPM.
Lekwasị anya n'inye mong pu ngwọta maka afọ 5.