{"id":2155,"date":"2018-07-09T04:00:41","date_gmt":"2018-07-09T04:00:41","guid":{"rendered":"https:\/\/hocvienit.vn\/?p=2155"},"modified":"2025-03-08T11:50:59","modified_gmt":"2025-03-08T04:50:59","slug":"huong-dan-su-dung-dong-ho-digital","status":"publish","type":"post","link":"https:\/\/hocvienit.vn\/?p=2155","title":{"rendered":"H\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 Digital"},"content":{"rendered":"
\"H\u01b0\u1edbng
H\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 Digital<\/figcaption><\/figure>\n

1. Gi\u1edbi thi\u1ec7u v\u1ec1 \u0111\u1ed3ng h\u1ed3 s\u1ed1 DIGITAL<\/strong><\/span><\/h2>\n

\u0110\u1ed3ng h\u1ed3 s\u1ed1 Digital c\u00f3 m\u1ed9t s\u1ed1 \u01b0u \u0111i\u1ec3m so v\u1edbi \u0111\u1ed3ng h\u1ed3 c\u01a1 kh\u00ed, \u0111\u00f3 l\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n, tr\u1edf kh\u00e1ng c\u1ee7a \u0111\u1ed3ng h\u1ed3 cao h\u01a1n do \u0111\u00f3 kh\u00f4ng g\u00e2y s\u1ee5t \u00e1p khi \u0111o v\u00e0o d\u00f2ng \u0111i\u1ec7n y\u1ebfu, \u0111o \u0111\u01b0\u1ee3c t\u1ea7n s\u1ed1 \u0111i\u1ec7n xoay chi\u1ec1u, tuy nhi\u00ean \u0111\u1ed3ng h\u1ed3 n\u00e0y c\u00f3 m\u1ed9t s\u1ed1 nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 ch\u1ea1y b\u1eb1ng m\u1ea1ch \u0111i\u1ec7n t\u1eed l\u00ean hay h\u1ecfng, kh\u00f3 nh\u00ecn k\u1ebft qu\u1ea3 trong tr\u01b0\u1eddng h\u1ee3p c\u1ea7n \u0111o nhanh, kh\u00f4ng \u0111o \u0111\u01b0\u1ee3c \u0111\u1ed9 ph\u00f3ng n\u1ea1p c\u1ee7a t\u1ee5.<\/span><\/p>\n

\"\u0110\u1ed3ng
\u0110\u1ed3ng h\u1ed3 Digital<\/figcaption><\/figure>\n

2. \u0110o \u0111i\u1ec7n \u00e1p m\u1ed9t chi\u1ec1u (Ho\u1eb7c xoay chi\u1ec1u)<\/strong><\/span><\/h2>\n

– \u0110\u1ec3 que \u0111\u1ecf \u0111\u1ed3ng h\u1ed3 v\u00e0o l\u1ed7 c\u1eafm ” V\u2126 mA” que \u0111en v\u00e0o l\u1ed7 c\u1eafm “COM”.<\/span><\/p>\n

– B\u1ea5m n\u00fat DC\/AC \u0111\u1ec3 ch\u1ecdn thang \u0111o l\u00e0 DC n\u1ebfu \u0111o \u00e1p m\u1ed9t chi\u1ec1u ho\u1eb7c AC n\u1ebfu \u0111o \u00e1p xoay chi\u1ec1u.<\/span><\/p>\n

– Xoay chuy\u1ec3n m\u1ea1ch v\u1ec1 v\u1ecb tr\u00ed “V” h\u00e3y \u0111\u1ec3 thang \u0111o cao nh\u1ea5t n\u1ebfu ch\u01b0a bi\u1ebft r\u00f5 \u0111i\u1ec7n \u00e1p, n\u1ebfu gi\u00e1 tr\u1ecb b\u00e1o d\u1ea1ng th\u1eadp ph\u00e2n th\u00ec ta gi\u1ea3m thang \u0111o sau.<\/span><\/p>\n

– \u0110\u1eb7t thang \u0111o v\u00e0o \u0111i\u1ec7n \u00e1p c\u1ea7n \u0111o v\u00e0 \u0111\u1ecdc gi\u00e1 tr\u1ecb tr\u00ean m\u00e0n h\u00ecnh LCD c\u1ee7a \u0111\u1ed3ng h\u1ed3.<\/span><\/p>\n

– N\u1ebfu \u0111\u1eb7t ng\u01b0\u1ee3c que \u0111o(v\u1edbi \u0111i\u1ec7n m\u1ed9t chi\u1ec1u) \u0111\u1ed3ng h\u1ed3 s\u1ebd b\u00e1o gi\u00e1 tr\u1ecb \u00e2m (-).<\/span><\/p>\n

3. \u0110o d\u00f2ng \u0111i\u1ec7n DC (AC)<\/strong><\/span><\/h2>\n

– Chuy\u1ec3n que \u0111\u1ed5 \u0111\u1ed3ng h\u1ed3 v\u1ec1 thang mA n\u1ebfu \u0111o d\u00f2ng nh\u1ecf, ho\u1eb7c 20A n\u1ebfu \u0111o d\u00f2ng l\u1edbn.<\/span><\/p>\n

– Xoay chuy\u1ec3n m\u1ea1ch v\u1ec1 v\u1ecb tr\u00ed “A”.<\/span><\/p>\n

– B\u1ea5m n\u00fat DC\/AC \u0111\u1ec3 ch\u1ecdn \u0111o d\u00f2ng m\u1ed9t chi\u1ec1u DC hay xoay chi\u1ec1u AC.<\/span><\/p>\n

– \u0110\u1eb7t que \u0111o n\u1ed1i ti\u1ebfp v\u1edbi m\u1ea1ch c\u1ea7n \u0111o.<\/span><\/p>\n

– \u0110\u1ecdc gi\u00e1 tr\u1ecb hi\u1ec3n th\u1ecb tr\u00ean m\u00e0n h\u00ecnh.<\/span><\/p>\n

\"C\u00e1c
C\u00e1c ch\u1ee9c n\u0103ng trong \u0111\u1ed3ng h\u1ed3 \u0111o<\/figcaption><\/figure>\n

4. \u0110o \u0111i\u1ec7n tr\u1edf<\/strong><\/span><\/h2>\n

– Tr\u1ea3 l\u1ea1i v\u1ecb tr\u00ed d\u00e2y c\u1eafm nh\u01b0 khi \u0111o \u0111i\u1ec7n \u00e1p .<\/span><\/p>\n

– Xoay chuy\u1ec3n m\u1ea1ch v\u1ec1 v\u1ecb tr\u00ed \u0111o ” \u2126 “, n\u1ebfu ch\u01b0a bi\u1ebft gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf th\u00ec ch\u1ecdn thang \u0111o cao nh\u1ea5t , n\u1ebfu k\u1ebft qu\u1ea3 l\u00e0 s\u1ed1 th\u1eadp ph\u00e2n th\u00ec ta gi\u1ea3m xu\u1ed1ng.<\/span><\/p>\n

– \u0110\u1eb7t que \u0111o v\u00e0o hai \u0111\u1ea7u \u0111i\u1ec7n tr\u1edf.<\/span><\/p>\n

– \u0110\u1ecdc gi\u00e1 tr\u1ecb tr\u00ean m\u00e0n h\u00ecnh.<\/span><\/p>\n

Ch\u1ee9c n\u0103ng \u0111o \u0111i\u1ec7n tr\u1edf c\u00f2n c\u00f3 th\u1ec3 \u0111o s\u1ef1 th\u00f4ng m\u1ea1ch, gi\u1ea3 s\u1eed \u0111o m\u1ed9t \u0111o\u1ea1n d\u00e2y d\u1eabn b\u1eb1ng thang \u0111o tr\u1edf, n\u1ebfu th\u00f4ng m\u1ea1ch th\u00ec \u0111\u1ed3ng h\u1ed3 ph\u00e1t ra ti\u1ebfn k\u00eau.<\/span><\/p>\n

5. \u0110o t\u1ea7n s\u1ed1<\/strong><\/span><\/h2>\n

– Xoay chuy\u1ec3n m\u1ea1ch v\u1ec1 v\u1ecb tr\u00ed “FREQ” ho\u1eb7c ” Hz”.<\/span><\/p>\n

– \u0110\u1ec3 thang \u0111o nh\u01b0 khi \u0111o \u0111i\u1ec7n \u00e1p.<\/span><\/p>\n

– \u0110\u1eb7t que \u0111o v\u00e0o c\u00e1c \u0111i\u1ec3m c\u1ea7n \u0111o.<\/span><\/p>\n

– \u0110\u1ecdc tr\u1ecb s\u1ed1 tr\u00ean m\u00e0n h\u00ecnh.<\/span><\/p>\n

6. \u0110o Logic<\/strong><\/span><\/h2>\n

\u00a0\u0110o Logic l\u00e0 \u0111o v\u00e0o c\u00e1c m\u1ea1ch s\u1ed1 ( Digital) ho\u1eb7c \u0111o c\u00e1c ch\u00e2n l\u1ec7n c\u1ee7a vi x\u1eed l\u00fd, \u0111o Logic th\u1ef1c ch\u1ea5t l\u00e0 \u0111o tr\u1ea1ng th\u00e1i c\u00f3 \u0111i\u1ec7n – K\u00fd hi\u1ec7u “1” hay kh\u00f4ng c\u00f3 \u0111i\u1ec7n “0”, c\u00e1ch \u0111o nh\u01b0 sau:<\/span><\/p>\n

– Xoay chuy\u1ec3n m\u1ea1ch v\u1ec1 v\u1ecb tr\u00ed “LOGIC”.<\/span><\/p>\n

– \u0110\u1eb7t que \u0111\u1ecf v\u00e0o v\u1ecb tr\u00ed c\u1ea7n \u0111o que \u0111en v\u00e0o mass.<\/span><\/p>\n

– M\u00e0n h\u00ecnh ch\u1ec9 “\u25b2” l\u00e0 b\u00e1o m\u1ee9c logic \u1edf m\u1ee9c cao, ch\u1ec9 “\u25bc” l\u00e0 b\u00e1o logic \u1edf m\u1ee9c th\u1ea5p.<\/span><\/p>\n

7. \u0110o c\u00e1c ch\u1ee9c n\u0103ng kh\u00e1c<\/strong><\/span><\/h2>\n

\u0110\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng s\u1ed1 Digital c\u00f2n m\u1ed9t s\u1ed1 ch\u1ee9c n\u0103ng \u0111o kh\u00e1c nh\u01b0 \u0110o \u0111i \u1ed1t, \u0110o t\u1ee5 \u0111i\u1ec7n, \u0110o Transistor nh\u01b0ng n\u1ebfu ta \u0111o c\u00e1c linh ki\u1ec7n tr\u00ean, ta l\u00ean d\u00f9ng \u0111\u1ed3ng h\u1ed3 c\u01a1 kh\u00ed s\u1ebd cho k\u1ebft qu\u1ea3 t\u1ed1t h\u01a1n v\u00e0 \u0111o nhanh h\u01a1n.<\/span><\/p>\n

M\u1ecdi chi ti\u1ebft xin vui l\u00f2ng li\u00ean h\u1ec7:<\/i><\/p>\n

C\u00d4NG TY C\u1ed4 PH\u1ea6N H\u1eccC VI\u1ec6N IT<\/strong><\/p>\n

MST: 0108733789<\/strong><\/p>\n

Hotline: 0981 223 001<\/strong><\/p>\n

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\n<\/i><\/p>\n

H\u1ecdc vi\u1ec7n IT.vn \u2013 Truy\u1ec1n ngh\u1ec1 th\u1ef1c t\u1ebf c\u00f9ng b\u1ea1n \u0111\u1ebfn th\u00e0nh c\u00f4ng!\u00a0<\/i><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

\u0110\u1ed3ng h\u1ed3 s\u1ed1 Digital c\u00f3 m\u1ed9t s\u1ed1 \u01b0u \u0111i\u1ec3m so v\u1edbi \u0111\u1ed3ng h\u1ed3 c\u01a1 kh\u00ed, \u0111\u00f3 l\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n, tr\u1edf kh\u00e1ng c\u1ee7a \u0111\u1ed3ng h\u1ed3 cao h\u01a1n do \u0111\u00f3 kh\u00f4ng g\u00e2y s\u1ee5t \u00e1p khi \u0111o v\u00e0o d\u00f2ng \u0111i\u1ec7n y\u1ebfu, \u0111o \u0111\u01b0\u1ee3c t\u1ea7n s\u1ed1 \u0111i\u1ec7n xoay chi\u1ec1u, tuy nhi\u00ean \u0111\u1ed3ng h\u1ed3 n\u00e0y c\u00f3 m\u1ed9t s\u1ed1 nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 ch\u1ea1y b\u1eb1ng m\u1ea1ch \u0111i\u1ec7n t\u1eed l\u00ean hay h\u1ecfng.<\/p>\n","protected":false},"author":95,"featured_media":12270,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[96,94],"tags":[669],"_links":{"self":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/2155"}],"collection":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/users\/95"}],"replies":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2155"}],"version-history":[{"count":0,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/2155\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/media\/12270"}],"wp:attachment":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2155"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2155"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}