admin 发表于 2023-2-19 17:49:21

实用!万用表常用功能使用指南


                                                                        <section style="background-color: rgb(255, 255, 255);box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 8px 0% 18px;transform: translate3d(-10px, 0px, 0px);-webkit-transform: translate3d(-10px, 0px, 0px);-moz-transform: translate3d(-10px, 0px, 0px);-o-transform: translate3d(-10px, 0px, 0px);box-sizing: border-box;"><section class="" style="display: inline-block;height: 2em;padding: 0.3em 0.5em;vertical-align: top;background-color: rgb(211, 0, 0);color: rgb(255, 255, 255);box-sizing: border-box;"><p style="box-sizing: border-box;">安防小课堂</p></section><section class="" style="width: 0.5em;display: inline-block;height: 2em;vertical-align: top;border-bottom: 1em solid rgb(211, 0, 0);border-top: 1em solid rgb(211, 0, 0);border-right: 1em solid transparent !important;box-sizing: border-box;"></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="background-color: rgb(254, 255, 255);width: 100%;padding: 5px 10px;display: inline-block;text-align: center;color: rgb(8, 8, 8);box-sizing: border-box;"><p style="clear: none;box-sizing: border-box;">万用表的常用基本功能</p></section> <section class="" style="clear: both;box-sizing: border-box;"></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 0.5em;margin-bottom: 0.5em;text-align: center;padding-left: 0.8em;padding-right: 0.8em;box-sizing: border-box;"><section class="" style="width: 100%;text-align: left;box-sizing: border-box;"> </section><section class="" style="box-shadow: rgba(159, 160, 160, 0.5) 0px 0px 10px;width: 100%;padding: 8px;background-color: rgb(254, 255, 255);float: left;margin-top: -3.2em;margin-bottom: -2.8em;box-sizing: border-box;"><section class="" style="width: 100%;float: left;padding: 10px;box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section class="" style="text-align: left;font-size: 14px;line-height: 1.9;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;">万用表是我们在监控弱电场景中常用的工具,这里简单介绍一下万用表的常用基本功能。</p></section></section></section></section></section><section class="" style="width: 100%;text-align: right;box-sizing: border-box;"> </section><section class="" style="clear: both;box-sizing: border-box;"></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="display: inline-block;width: 100%;vertical-align: top;padding-top: 10px;padding-bottom: 10px;box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="text-align: center;margin-top: 10px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section class="" style="max-width: 100%;vertical-align: middle;display: inline-block;width: 25%;overflow: hidden !important;box-sizing: border-box;"></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="text-align: center;box-sizing: border-box;"><section class="" style="display: inline-block;width: 90%;vertical-align: top;padding: 10px;background-color: rgb(240, 203, 88);border-width: 0px;border-radius: 10px;border-style: none;border-color: rgb(62, 62, 62);box-shadow: rgb(0, 0, 0) 0px 0px 0px;box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="display: inline-block;width: 100%;vertical-align: top;padding: 10px;background-color: rgb(245, 240, 222);border-width: 0px;border-radius: 10px;border-style: none;border-color: rgb(62, 62, 62);box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="display: inline-block;vertical-align: bottom;width: 75%;padding-right: 5px;padding-left: 5px;box-shadow: rgb(0, 0, 0) 0px 0px 0px inset;box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section class="" style="max-width: 100%;vertical-align: middle;display: inline-block;border-style: solid;border-width: 3px;border-radius: 15px;border-color: rgb(255, 255, 255);overflow: hidden !important;box-sizing: border-box;"></section></section></section></section><section class="" style="display: inline-block;vertical-align: bottom;width: 25%;padding-right: 5px;padding-left: 5px;box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="display: inline-block;width: 100%;vertical-align: top;padding-top: 3px;padding-right: 3px;padding-left: 3px;box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section class="" style="max-width: 100%;vertical-align: middle;display: inline-block;width: 80%;overflow: hidden !important;box-sizing: border-box;"></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="text-align: center;margin-right: 0%;margin-bottom: 10px;margin-left: 0%;box-sizing: border-box;"><section class="" style="max-width: 100%;vertical-align: middle;display: inline-block;width: 70%;overflow: hidden !important;box-sizing: border-box;"></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 0.5em;box-sizing: border-box;"><section class="" style="height: 2em;display: inline-block;box-sizing: border-box;"><section class="" style="display: inline-block;vertical-align: top;height: 2em;line-height: 2em;padding-right: 0.3em;padding-left: 0.3em;border-top: 0.1em solid rgb(249, 110, 87);border-bottom: 0.1em solid rgb(249, 110, 87);border-left: 0.1em solid rgb(249, 110, 87);border-right: none rgb(249, 110, 87);box-sizing: border-box;"><p style="box-sizing: border-box;"><span style="font-size: 14px;">使用方法</span></p></section><section style="display: inline-block;vertical-align: top;width: 1.2em;height: 2em;border-bottom: 0.1em solid rgb(249, 110, 87);border-right: 0.1em solid rgb(249, 110, 87);margin-left: -0.6em;transform: skew(30deg);-webkit-transform: skew(30deg);-moz-transform: skew(30deg);-o-transform: skew(30deg);box-sizing: border-box;"></section><section style="width: 0px;display: inline-block;vertical-align: middle;border-top: 1.8em solid rgb(249, 110, 87);border-left: 1em solid transparent !important;border-right: 1em solid transparent !important;box-sizing: border-box;"></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="border-top: 0.1em solid rgb(0, 0, 0);border-bottom: 0.1em solid rgb(0, 0, 0);padding: 2px;line-height: 1.9;font-size: 14px;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;">我们常用万用表测试的有短路、交流电压、直流电压、电阻、电流等。红笔为正,黑笔为负,测量时,一定要先核对测量类别以及量程,若事先无法估计量程,尽量选择交大量程,然后根据数值逐步换到较小的量程。</p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="font-size: 58px;text-align: center;box-sizing: border-box;"><section class="" style="box-sizing: border-box;display: inline-block;vertical-align: bottom;margin: auto;width: 3em;height: 3em;border-radius: 100%;background-position: center center;background-repeat: no-repeat;background-size: cover;background-image: url("https://neice.26x.net/UploadFile/common/wechat//2023/02-19/82df060a-7e79-4ef8-a101-1349197fb424.png");"><section class="" style="width: 100%;height: 100%;overflow: hidden;box-sizing: border-box;"></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 0.5em;box-sizing: border-box;"><section class="" style="height: 2em;display: inline-block;box-sizing: border-box;"><section class="" style="display: inline-block;vertical-align: top;height: 2em;line-height: 2em;padding-right: 0.3em;padding-left: 0.3em;border-top: 0.1em solid rgb(249, 110, 87);border-bottom: 0.1em solid rgb(249, 110, 87);border-left: 0.1em solid rgb(249, 110, 87);border-right: none rgb(249, 110, 87);box-sizing: border-box;"><p style="box-sizing: border-box;"><span style="font-size: 14px;">怎么测短路</span></p></section><section style="display: inline-block;vertical-align: top;width: 1.2em;height: 2em;border-bottom: 0.1em solid rgb(249, 110, 87);border-right: 0.1em solid rgb(249, 110, 87);margin-left: -0.6em;transform: skew(30deg);-webkit-transform: skew(30deg);-moz-transform: skew(30deg);-o-transform: skew(30deg);box-sizing: border-box;"></section><section style="width: 0px;display: inline-block;vertical-align: middle;border-top: 1.8em solid rgb(249, 110, 87);border-left: 1em solid transparent !important;border-right: 1em solid transparent !important;box-sizing: border-box;"></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="border-top: 0.1em solid rgb(0, 0, 0);border-bottom: 0.1em solid rgb(0, 0, 0);padding: 2px;line-height: 1.9;font-size: 15px;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;"><span style="font-size: 14px;">先把开关档调到蜂鸣档上,要测试导线的物体两端分别接触到表笔的金属针头,如果有嘟嘟的声音,说明导线导通,否则断开。</span></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="max-width: 100%;vertical-align: middle;display: inline-block;width: 37%;overflow: hidden !important;box-sizing: border-box;"></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 0.5em;box-sizing: border-box;"><section class="" style="height: 2em;display: inline-block;box-sizing: border-box;"><section class="" style="display: inline-block;vertical-align: top;height: 2em;line-height: 2em;padding-right: 0.3em;padding-left: 0.3em;border-top: 0.1em solid rgb(249, 110, 87);border-bottom: 0.1em solid rgb(249, 110, 87);border-left: 0.1em solid rgb(249, 110, 87);border-right: none rgb(249, 110, 87);box-sizing: border-box;"><p style="box-sizing: border-box;"><span style="font-size: 14px;">怎么测电阻</span></p></section><section style="display: inline-block;vertical-align: top;width: 1.2em;height: 2em;border-bottom: 0.1em solid rgb(249, 110, 87);border-right: 0.1em solid rgb(249, 110, 87);margin-left: -0.6em;transform: skew(30deg);-webkit-transform: skew(30deg);-moz-transform: skew(30deg);-o-transform: skew(30deg);box-sizing: border-box;"></section><section style="width: 0px;display: inline-block;vertical-align: middle;border-top: 1.8em solid rgb(249, 110, 87);border-left: 1em solid transparent !important;border-right: 1em solid transparent !important;box-sizing: border-box;"></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="border-top: 0.1em solid rgb(0, 0, 0);border-bottom: 0.1em solid rgb(0, 0, 0);padding: 2px;line-height: 1.9;font-size: 15px;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;"><span style="font-size: 14px;">先把开关档调到测电阻的档位上,两只表笔短接归零。表笔的金属针头分别接触被测物体的两极,显示屏会显示具体数值。注意,测电阻时,不能带电测。</span></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="max-width: 100%;vertical-align: middle;display: inline-block;width: 37%;overflow: hidden !important;box-sizing: border-box;"></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 0.5em;box-sizing: border-box;"><section class="" style="height: 2em;display: inline-block;box-sizing: border-box;"><section class="" style="display: inline-block;vertical-align: top;height: 2em;line-height: 2em;padding-right: 0.3em;padding-left: 0.3em;border-top: 0.1em solid rgb(249, 110, 87);border-bottom: 0.1em solid rgb(249, 110, 87);border-left: 0.1em solid rgb(249, 110, 87);border-right: none rgb(249, 110, 87);box-sizing: border-box;"><p style="box-sizing: border-box;"><span style="font-size: 14px;">怎么测电流</span></p></section><section style="display: inline-block;vertical-align: top;width: 1.2em;height: 2em;border-bottom: 0.1em solid rgb(249, 110, 87);border-right: 0.1em solid rgb(249, 110, 87);margin-left: -0.6em;transform: skew(30deg);-webkit-transform: skew(30deg);-moz-transform: skew(30deg);-o-transform: skew(30deg);box-sizing: border-box;"></section><section style="width: 0px;display: inline-block;vertical-align: middle;border-top: 1.8em solid rgb(249, 110, 87);border-left: 1em solid transparent !important;border-right: 1em solid transparent !important;box-sizing: border-box;"></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="border-top: 0.1em solid rgb(0, 0, 0);border-bottom: 0.1em solid rgb(0, 0, 0);padding: 2px;line-height: 1.9;font-size: 15px;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;"><span style="font-size: 14px;">先把开关档调到电流档,测电流需要将万用表串联在被测电路中。</span></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="max-width: 100%;vertical-align: middle;display: inline-block;width: 37%;overflow: hidden !important;box-sizing: border-box;"></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 0.5em;box-sizing: border-box;"><section class="" style="height: 2em;display: inline-block;box-sizing: border-box;"><section class="" style="display: inline-block;vertical-align: top;height: 2em;line-height: 2em;padding-right: 0.3em;padding-left: 0.3em;border-top: 0.1em solid rgb(249, 110, 87);border-bottom: 0.1em solid rgb(249, 110, 87);border-left: 0.1em solid rgb(249, 110, 87);border-right: none rgb(249, 110, 87);box-sizing: border-box;"><p style="box-sizing: border-box;"><span style="font-size: 14px;">怎么测直流电压</span></p></section><section style="display: inline-block;vertical-align: top;width: 1.2em;height: 2em;border-bottom: 0.1em solid rgb(249, 110, 87);border-right: 0.1em solid rgb(249, 110, 87);margin-left: -0.6em;transform: skew(30deg);-webkit-transform: skew(30deg);-moz-transform: skew(30deg);-o-transform: skew(30deg);box-sizing: border-box;"></section><section style="width: 0px;display: inline-block;vertical-align: middle;border-top: 1.8em solid rgb(249, 110, 87);border-left: 1em solid transparent !important;border-right: 1em solid transparent !important;box-sizing: border-box;"></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="border-top: 0.1em solid rgb(0, 0, 0);border-bottom: 0.1em solid rgb(0, 0, 0);padding: 2px;line-height: 1.9;font-size: 15px;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;"><span style="font-size: 14px;">先把开关档调到直流电压档,表笔的金属针头分别接触要测试有没有电压的端子上,如果有电压数字表会显示出电压值是多少。</span></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="max-width: 100%;vertical-align: middle;display: inline-block;width: 37%;overflow: hidden !important;box-sizing: border-box;"></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 0.5em;box-sizing: border-box;"><section class="" style="height: 2em;display: inline-block;box-sizing: border-box;"><section class="" style="display: inline-block;vertical-align: top;height: 2em;line-height: 2em;padding-right: 0.3em;padding-left: 0.3em;border-top: 0.1em solid rgb(249, 110, 87);border-bottom: 0.1em solid rgb(249, 110, 87);border-left: 0.1em solid rgb(249, 110, 87);border-right: none rgb(249, 110, 87);box-sizing: border-box;"><p style="box-sizing: border-box;"><span style="font-size: 14px;">怎么测交流电压</span></p></section><section style="display: inline-block;vertical-align: top;width: 1.2em;height: 2em;border-bottom: 0.1em solid rgb(249, 110, 87);border-right: 0.1em solid rgb(249, 110, 87);margin-left: -0.6em;transform: skew(30deg);-webkit-transform: skew(30deg);-moz-transform: skew(30deg);-o-transform: skew(30deg);box-sizing: border-box;"></section><section style="width: 0px;display: inline-block;vertical-align: middle;border-top: 1.8em solid rgb(249, 110, 87);border-left: 1em solid transparent !important;border-right: 1em solid transparent !important;box-sizing: border-box;"></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="border-top: 0.1em solid rgb(0, 0, 0);border-bottom: 0.1em solid rgb(0, 0, 0);padding: 2px;line-height: 1.9;font-size: 15px;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;"><span style="font-size: 14px;">先把开关档调到交流电压档,表笔的金属针头分别接触要测试有没有电压的端子上,如果有电压数字表会显示出电压值是多少。</span></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 10px;margin-bottom: 10px;padding-right: 3px;padding-left: 3px;text-align: center;overflow: hidden;box-sizing: border-box;"><section class="" style="height: 2.6em;box-sizing: border-box;"><section style="transform: rotate(-45deg);-webkit-transform: rotate(-45deg);-moz-transform: rotate(-45deg);-o-transform: rotate(-45deg);margin-top: -1em;box-sizing: border-box;"><section style="width: 2em;height: 2em;margin: auto;display: inline-block;box-sizing: border-box;"><section style="height: 100%;border-left: 0.2em solid rgb(249, 110, 87);border-bottom: 0.2em solid rgb(249, 110, 87);background-color: transparent !important;box-sizing: border-box;"></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 10px;margin-bottom: 10px;padding-right: 3px;padding-left: 3px;box-sizing: border-box;"><section class="" style="width: 4.5em;height: 4.5em;display: inline-block;vertical-align: bottom;border-radius: 100%;background-position: center center;background-repeat: no-repeat;background-size: cover;background-image: url("https://neice.26x.net/UploadFile/common/wechat//2023/02-19/36526db8-efdb-4f82-953e-fa2905102eea.png");box-sizing: border-box;"><section class="" style="width: 100%;height: 100%;overflow: hidden;box-sizing: border-box;"></section></section><section class="group-empty" style="display: inline-block;vertical-align: middle;padding-right: 10px;padding-left: 10px;box-sizing: border-box;max-width: 74% !important;"></section><section class="" style="width: 0px;height: 1.5em;margin-left: 2.25em;border-left: 1px solid rgb(252, 18, 18);box-sizing: border-box;"></section><section class="" style="height: 2em;border-left: 1px solid rgb(252, 18, 18);border-top: 1px solid rgb(252, 18, 18);border-right: 1px solid rgb(252, 18, 18);border-bottom-color: rgb(252, 18, 18);box-sizing: border-box;"></section><section class="" style="width: 6px;height: 6px;float: left;background-color: rgb(249, 110, 87);margin-left: -3px;border-radius: 100%;box-sizing: border-box;"></section><section class="" style="width: 6px;height: 6px;margin-right: -3px;background-color: rgb(249, 110, 87);float: right;border-radius: 100%;box-sizing: border-box;"></section><section class="" style="display: inline-block;vertical-align: middle;padding-right: 10px;padding-bottom: 10px;padding-left: 10px;margin-top: -2em;width: 100%;box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="text-align: center;color: rgb(249, 110, 87);line-height: 1.9;font-size: 14px;letter-spacing: 1.2px;box-sizing: border-box;"><p style="clear: none;box-sizing: border-box;"><strong style="box-sizing: border-box;">万用表你学会用了吗?</strong></p></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="border-width: 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