Nzira yekutanga yekuona dunhu pfupi:

Isa iyo multimeter kune yepfupi-yedunhu yekuona chinzvimbo (kazhinji ine alarm basa, kana ikavhurwa, ichaita beep), tarisa kana pane pfupi-circuit chiitiko, uye gadzirisa iyo pakarepo mushure mekunge yawanikwa.Iyo pfupi-yedunhu phenomenon zvakare ndiyo yakajairika LED kuratidza module kutadza.Mamwe anogona kuwanikwa nekutarisa maIC pini nemapini emusoro.Iyo pfupi yedunhu yekuona inofanirwa kushandiswa kana dunhu richidzimwa kuti rirege kukuvadzwa kune multimeter.Iyi nzira ndiyo inonyanya kushandiswa nzira, iri nyore uye inoshanda.90% yezvikanganiso zvinogona kuonekwa uye kutongwa nenzira iyi.

Yechipiri yekuramba yekuona nzira:

Gadzirisa iyo multimeter kune chinzvimbo chekupikisa, tarisa kukosha kwekupokana kweimwe nzvimbo yeyakajairika redunhu bhodhi kusvika pasi, uyezve tarisa iyo imwe pfungwa yeimwe yakafanana bhodhi redunhu kuti uedze kana kukosha kwekupokana kwakasiyana kubva kune yakajairika kuramba kukosha, kana zvakasiyana, zvakatemerwa The scope of the problem.

Nzira yechitatu yekuona magetsi:

Gadzirisa iyo multimeter kune voltage renji, tarisa pasi voltage pane imwe nzvimbo yedunhu inofungidzirwa kuti ine dambudziko, uye enzanisa kana yakafanana neyakajairwa kukosha, iyo inogona kuona nyore kukura kwedambudziko.

Yechina kudonhedza kudonha nzira yekuona:

Gadzirisa iyo multimeter kune diode voltage inodonha yekuona giya, nekuti ese maICs anoumbwa akawanda ekutanga ega ega zvikamu, asi iwo ari miniaturized, saka kana paine ikozvino inopfuura nepapini yayo, ichave iripo papini.Kudonha kwemagetsi.Kazhinji, kudonha kwemagetsi papini imwechete yemhando imwechete yeIC yakafanana.Zvinoenderana nehuwandu hwekudonha kwevoltage papini, inofanirwa kushandiswa kana dunhu radzimwa.