SB2231直流數(shù)字電阻測(cè)試儀技術(shù)數(shù)-上?？档请姎饪萍加邢薰?/title> <link type="text/css" rel="stylesheet" href="/Skins/106676/css/index.css" /> <script src="/skins/106676/js/jquery-3.6.0.min.js"></script> <link rel="stylesheet" type="text/css" href="/skins/106676/css/swiper.min.css"> <script type="text/javascript" src="/skins/106676/js/swiper.min.js"></script>  <script language="javascript" type="text/javascript"> var nav= '5'; var menu= '0'; </script>  <link rel="shortcut icon" href="/skins/106676/favicon.ico"> <script type="application/ld+json"> { "@context": "https://ziyuan.baidu.com/contexts/cambrian.jsonld", "@id": "http:///Article-2287741.html", "title": "SB2231直流數(shù)字電阻測(cè)試儀技術(shù)數(shù)", "pubDate": "2020-07-08T08:56:01", "upDate": "2020-07-08T08:56:01" }</script> <script language="javaScript" src="/js/JSChat.js"></script><script language="javaScript">function ChatBoxClickGXH() { DoChatBoxClickGXH('https://chat.chem17.com',83189) }</script><script>!window.jQuery && 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<div id="iqaqewgi6e" class="searchbox"> <form name="form1" method="post" action="/products.html" onsubmit="return checkform(form1)" class="input"> <input name="keyword" onblur="if(this.value=='')this.value='請(qǐng)輸入您要查詢的產(chǎn)品'" onfocus="this.value=''" value="請(qǐng)輸入您要查詢的產(chǎn)品" type="text" class="search-txt"> <input name="" type="submit" class="search-btn" value=""> </form> </div> <div id="iqaqewgi6e" class="clear"></div> </div> </div> <div id="iqaqewgi6e" class="nybanner"><img src="/skins/106676/images/nybanner.jpg"></div> <script src="http://www.chem17.com/mystat.aspx?u=mbdzkj"></script>  <div id="iqaqewgi6e" class="ncontent w_1100"> <div id="iqaqewgi6e" class="h-6">技術(shù)文章<span>您當(dāng)前的位置：<a href="/">首頁(yè)</a> > <a href="/article.html">技術(shù)文章</a> > SB2231直流數(shù)字電阻測(cè)試儀技術(shù)數(shù)</span></div>  <div id="iqaqewgi6e" class="n-3 c-news"> <div id="iqaqewgi6e" class="newsnr"> <h1>SB2231直流數(shù)字電阻測(cè)試儀技術(shù)數(shù)</h1> <p class="source"><span>日期：2020-07-08</span><span>瀏覽：1145次</span></p> <div> <p><span style="font-family:宋體; font-size:12pt">SB2231型直流數(shù)字電阻測(cè)試儀是一種由CMOS大規(guī)模集成電路組成的4</span><span style="font-family:宋體; font-size:12pt">1</span><span style="font-family:宋體; font-size:12pt">/</span><span style="font-family:宋體; font-size:12pt">2</span><span style="font-family:宋體; font-size:12pt">位便攜式數(shù)字儀表，其測(cè)量結(jié)果用五位LED顯示。該表具有性能優(yōu)良，可靠性好，價(jià)格低廉，使用方便的特點(diǎn)，它還可用作為10μV～2V的電壓測(cè)量。此表*適合用來(lái)測(cè)量金屬導(dǎo)體、導(dǎo)線以及其它的接觸點(diǎn)的電阻，除此以外，還可用來(lái)測(cè)試電機(jī)、變壓器的繞線電阻等等。因此它可以廣泛地使用于實(shí)驗(yàn)室、工礦現(xiàn)場(chǎng)等，是一個(gè)極為理想的測(cè)量?jī)x器。</span></p><p><span style="font-family:宋體; font-size:12pt">二、技術(shù)數(shù)據(jù)</span></p><p><span style="font-family:宋體; font-size:12pt">2.1 使用條件</span></p><p><span style="font-family:宋體; font-size:12pt">2.1.1環(huán)境溫度：20℃±15℃</span></p><p><span style="font-family:宋體; font-size:12pt">2.1.2環(huán)境相對(duì)濕度：75%以下</span></p><p><span style="font-family:宋體; font-size:12pt">2.1.3供電電源：220V±22V，50Hz±1Hz</span></p><p><span style="font-family:宋體; font-size:12pt">2.1.4無(wú)劇烈震動(dòng)和機(jī)械沖擊。</span></p><p><span style="font-family:宋體; font-size:12pt">2.1.5空氣中不含有足以腐蝕儀器的灰塵和雜質(zhì)。</span></p><p><span style="font-family:宋體; font-size:12pt">2.1.6不應(yīng)受強(qiáng)的電磁場(chǎng)干擾。</span></p><p><span style="font-family:宋體; font-size:12pt">2.1.7通風(fēng)條件良好。</span></p><p><span style="font-family:宋體; font-size:12pt">2.2 量程、測(cè)量范圍、分辨力及基本誤差</span></p><p><span style="font-family:宋體; font-size:12pt">產(chǎn)品在標(biāo)準(zhǔn)條件下符合表1規(guī)定。</span></p><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">表1</span></p><table style="background-color:rgb(255, 255, 255); border-collapse:collapse; border-spacing:0px; box-sizing:border-box; font-family:microsoft yahei,arial,sans-serif; margin-left:15.9pt; padding:0pt 5.4pt; table-layout:inherit"><tbody><tr><td style="border-color:rgb(0, 0, 0); width:90.6pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">量程</span></p></td><td style="width:87.2pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">測(cè)量范圍</span></p></td><td style="width:81.9pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">分辨力</span></p></td><td style="width:142.05pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">基本誤差</span></p></td></tr><tr><td style="width:90.6pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">2Ω</span></p></td><td style="width:87.2pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">1.9999Ω</span></p></td><td style="width:81.9pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">10μΩ</span></p></td><td rowspan="6" style="width:142.05pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">±(0.05%讀數(shù)值+2字)</span></p></td></tr><tr><td style="width:90.6pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">20Ω</span></p></td><td style="width:87.2pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">19.999Ω</span></p></td><td style="width:81.9pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">1mΩ</span></p></td></tr><tr><td style="width:90.6pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">200Ω</span></p></td><td style="width:87.2pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">199.99Ω</span></p></td><td style="width:81.9pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">10mΩ</span></p></td></tr><tr><td style="width:90.6pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">2KΩ</span></p></td><td style="width:87.2pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">1.9999KΩ</span></p></td><td style="width:81.9pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">100mΩ</span></p></td></tr><tr><td style="width:90.6pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">20KΩ</span></p></td><td style="width:87.2pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">19.999KΩ</span></p></td><td style="width:81.9pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">1Ω</span></p></td></tr><tr><td style="width:90.6pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">200KΩ</span></p></td><td style="width:87.2pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">199.99KΩ</span></p></td><td style="width:81.9pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">10Ω</span></p></td></tr><tr><td style="width:90.6pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">2MΩ</span></p></td><td style="width:87.2pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">1.9999MΩ</span></p></td><td style="width:81.9pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">100Ω</span></p></td><td style="width:142.05pt"><p style="text-align:center"> </p></td></tr></tbody></table><p> </p><p><span style="font-family:宋體; font-size:12pt">2.3 長(zhǎng)期穩(wěn)定性</span></p><p><span style="font-family:宋體; font-size:12pt">產(chǎn)品在參比條件下，6個(gè)月內(nèi)誤差如表2所示。</span></p><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">表2</span></p><table style="background-color:rgb(255, 255, 255); border-collapse:collapse; border-spacing:0px; box-sizing:border-box; font-family:microsoft yahei,arial,sans-serif; margin-left:15.9pt; padding:0pt 5.4pt; table-layout:inherit"><tbody><tr><td style="border-color:rgb(0, 0, 0); width:90.6pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">量程</span></p></td><td style="width:87.2pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">測(cè)量范圍</span></p></td><td style="width:81.9pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">分辨力</span></p></td><td style="width:142.05pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">基本誤差</span></p></td></tr><tr><td style="width:90.6pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">2Ω</span></p></td><td style="width:87.2pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">1.9999Ω</span></p></td><td style="width:81.9pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">10μΩ</span></p></td><td rowspan="6" style="width:142.05pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">±(0.06%讀數(shù)值+2字)</span></p></td></tr><tr><td style="width:90.6pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">20Ω</span></p></td><td style="width:87.2pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">19.999Ω</span></p></td><td style="width:81.9pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">1mΩ</span></p></td></tr><tr><td style="width:90.6pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">200Ω</span></p></td><td style="width:87.2pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">199.99Ω</span></p></td><td style="width:81.9pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">10mΩ</span></p></td></tr><tr><td style="width:90.6pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">2KΩ</span></p></td><td style="width:87.2pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">1.9999KΩ</span></p></td><td style="width:81.9pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">100mΩ</span></p></td></tr><tr><td style="width:90.6pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">20KΩ</span></p></td><td style="width:87.2pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">19.999KΩ</span></p></td><td style="width:81.9pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">1Ω</span></p></td></tr><tr><td style="width:90.6pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">200KΩ</span></p></td><td style="width:87.2pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">199.99KΩ</span></p></td><td style="width:81.9pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">10Ω</span></p></td></tr><tr><td style="width:90.6pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">2MΩ</span></p></td><td style="width:87.2pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">1.9999MΩ</span></p></td><td style="width:81.9pt"><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">100Ω</span></p></td><td style="width:142.05pt"><p style="text-align:center"> </p></td></tr></tbody></table><p> </p><p><span style="font-family:宋體; font-size:12pt">2.4 溫度附加誤差</span></p><p><span style="font-family:宋體; font-size:12pt">產(chǎn)品在偏離20±1℃的情況下工作，環(huán)境溫度每變化10℃所引起的附加誤差應(yīng)不超過(guò)基本誤差值。</span></p><p><span style="font-family:宋體; font-size:12pt">2.5 極性、量程過(guò)載指示。</span></p><p><span style="font-family:宋體; font-size:12pt">2.5.1在電阻測(cè)量不顯示極性（如顯示“—”極性，則是VH和VL接錯(cuò)，調(diào)換一下則可）。</span></p><p><span style="font-family:宋體; font-size:12pt">2.5.2此極性在零位調(diào)準(zhǔn)時(shí)候用。</span></p><p><span style="font-family:宋體; font-size:12pt">2.5.3當(dāng)輸入電阻值超過(guò)儀表測(cè)量范圍時(shí)儀表顯示閃爍。</span></p><p><span style="font-family:宋體; font-size:12pt">2.5.4從2Ω至2MΩ都采用手動(dòng)量程。</span></p><p><span style="font-family:宋體; font-size:12pt">2.6 采樣速度：2～3次/s。</span></p><p><span style="font-family:宋體; font-size:12pt">2.7 消耗功率：不大于30W。</span></p><p><span style="font-family:宋體; font-size:12pt">2.8 重量：不大于3kg。</span></p><p><span style="font-family:宋體; font-size:12pt">2.9 外形尺寸：l×b×hmm:240×285×105。</span></p><p><span style="font-family:宋體; font-size:12pt">三、工作原理與特點(diǎn)：</span></p><p><span style="font-family:宋體; font-size:12pt">本儀器是由10μΩ靈敏度的4</span><span style="font-family:宋體; font-size:12pt">1</span><span style="font-family:宋體; font-size:12pt">/</span><span style="font-family:宋體; font-size:12pt">2</span><span style="font-family:宋體; font-size:12pt">位數(shù)字電壓表和一個(gè)精密恒流源組成，如圖1所示：</span></p><p><span style="font-family:宋體; font-size:12pt"> </span><span style="font-family:宋體; font-size:12pt"> </span></p><p><span style="font-family:宋體; font-size:12pt"> </span><span style="font-family:宋體; font-size:14pt"> <img alt="" src="http://y1.yizimg.com/ComFolder/486823//201202/$XWU2QR$$4$K%7DFXWP@8Y]NI.jpg?imageView2/2/format/webp/" style="height:auto; width:385" /></span></p><p><span style="font-family:宋體; font-size:12pt">由精密恒流源流出的電流在被測(cè)電阻上產(chǎn)生一個(gè)電壓降。同時(shí)用4</span><span style="font-family:宋體; font-size:12pt">1</span><span style="font-family:宋體; font-size:12pt">/</span><span style="font-family:宋體; font-size:12pt">2</span><span style="font-family:宋體; font-size:12pt">位數(shù)字電壓表去測(cè)試這個(gè)電壓降，其測(cè)量結(jié) 果用電阻值反應(yīng)出來(lái)。因此該表除為可測(cè)試2Ω~2MΩ的電阻之外，還可以測(cè)200mV，2V二檔電壓。</span></p><p><span style="font-family:宋體; font-size:12pt">四、使用說(shuō)明</span></p><p><span style="font-family:宋體; font-size:12pt">4.1 產(chǎn)品外形</span></p><p><span style="font-family:宋體; font-size:12pt">本產(chǎn)品前視圖如圖2，后視圖如圖3.</span></p><p><span style="font-family:宋體; font-size:12pt"><img alt="" src="http://y1.yizimg.com/ComFolder/486823//201202/%E5%9B%BE%E7%89%873(3).png?imageView2/2/format/webp/" style="height:auto; width:360" /></span></p><p><span style="font-family:宋體; font-size:12pt">圖2</span></p><p><span style="font-family:宋體; font-size:12pt">圖中：1……面板；</span></p><p><span style="font-family:宋體; font-size:12pt">2……外殼；</span></p><p><span style="font-family:宋體; font-size:12pt">3……量程開(kāi)關(guān)；</span></p><p><span style="font-family:宋體; font-size:12pt">4……輸入插孔</span></p><p><span style="font-family:宋體; font-size:12pt"> <img alt="" src="http://y1.yizimg.com/ComFolder/486823//201202/%E5%9B%BE%E7%89%874(2).png?imageView2/2/format/webp/" style="height:auto; width:340" /></span></p><p style="text-align:center"><span style="font-family:宋體; font-size:12pt">圖3</span></p><p><span style="font-family:宋體; font-size:12pt">圖中：1……后面板；</span></p><p><span style="font-family:宋體; font-size:12pt">2……接地柱；</span></p><p><span style="font-family:宋體; font-size:12pt">3……電源插座；（帶0.2A保險(xiǎn)絲）；</span></p><p><span style="font-family:宋體; font-size:12pt">4……電源開(kāi)關(guān)；</span></p><p><span style="font-family:宋體; font-size:12pt">4.2 使用注意事項(xiàng)</span></p><p><span style="font-family:宋體; font-size:12pt">4.2.1接通電源預(yù)熱60min即可進(jìn)行測(cè)量；</span></p><p><span style="font-family:宋體; font-size:12pt">4.2.2儀器經(jīng)過(guò)劇烈的環(huán)境條件變化或長(zhǎng)期不使用，在*使用時(shí)應(yīng)通電3~4h。</span></p><p><span style="font-family:宋體; font-size:12pt">4.2.3在測(cè)量過(guò)程應(yīng)注意量程范圍。</span></p><p><span style="font-family:宋體; font-size:12pt">五、維修與復(fù)核</span></p><p><span style="font-family:宋體; font-size:12pt">為了保證儀表的使用準(zhǔn)確性必須定期對(duì)它進(jìn)行復(fù)核、維護(hù)和調(diào)節(jié)。</span></p><p><span style="font-family:宋體; font-size:12pt">（1）復(fù)核</span></p><p><span style="font-family:宋體; font-size:12pt">所需設(shè)備：0.01%精度的直流電壓表和直流電流表。</span></p><p><span style="font-family:宋體; font-size:12pt">將直流電壓源的優(yōu)異、低端分別接入產(chǎn)品的VH與VL端。</span></p><p><span style="font-family:宋體; font-size:12pt">將直流電流源的優(yōu)異、低端分別接入產(chǎn)品的RH與RL端。</span></p><p><span style="font-family:宋體; font-size:12pt">在200Ω檔、2KΩ、2MΩ檔時(shí)直流以電壓表輸出讀數(shù)UX（UX<2.0000V）讀出直流電流表讀數(shù)IX，根據(jù)歐姆定律RX=UX/IX求出相應(yīng)的RX值。</span></p><p><span style="font-family:宋體; font-size:12pt">在2Ω檔、20Ω、2KΩ檔時(shí)直流電壓表輸出UX</span><span style="font-family:宋體; font-size:10.5pt">（</span><span style="font-family:宋體; font-size:12pt">UX<2.0000V）讀出直流電流表讀數(shù)1X，根據(jù)歐姆定律：RX=UX/IX求出相應(yīng)的RX值。RX值應(yīng)符合表1所示的基本誤差。</span></p><p><span style="font-family:宋體; font-size:12pt">（2）維護(hù)和調(diào)節(jié)</span></p><p><span style="font-family:宋體; font-size:12pt">在用戶不具備復(fù)核校對(duì)條件或用戶復(fù)核值超出基本誤差的情況下，生產(chǎn)廠家將免費(fèi)為用戶復(fù)核、維護(hù)和調(diào)節(jié)。</span></p><p><span style="font-family:宋體; font-size:12pt">六、成套性</span></p><p><span style="font-family:宋體; font-size:12pt">隨同產(chǎn)品一起供應(yīng)的技術(shù)文件有：</span></p><p><span style="font-family:宋體; font-size:12pt">a. 合格證一份</span></p><p><span style="font-family:宋體; font-size:12pt">b. 使用說(shuō)明書(shū) 一份</span></p><p><span style="font-family:宋體; font-size:12pt">c. 裝箱單一份</span></p><p><span style="font-family:宋體; font-size:12pt">隨同產(chǎn)品一起供應(yīng)的附件有：</span></p><p><span style="font-family:宋體; font-size:12pt">a. 0.5A保險(xiǎn)絲 2只</span></p><p><span style="font-family:宋體; font-size:12pt">b. 輸入線一副</span></p><p><span style="font-family:宋體; font-size:12pt">c. 電源線一根</span></p><p><span style="font-family:宋體; font-size:12pt">七、保管及使用期限</span></p><p><span style="font-family:宋體; font-size:12pt">儀器存放在環(huán)境濕度為0~40℃，相對(duì)濕度80%以下，在空氣中不含足以引起腐蝕的氣體或有害雜質(zhì)。用戶在遵守安裝、運(yùn)輸和使用規(guī)則的條件下，從制造廠發(fā)貨日起18個(gè)月內(nèi)，產(chǎn)品因制造質(zhì)量不佳發(fā)生的損壞或不能正常工作，制造廠應(yīng)負(fù)責(zé)免費(fèi)為用戶修理產(chǎn)品及更換零件。</span></p> <div id="iqaqewgi6e" class="clear"></div> </div> <div id="iqaqewgi6e" class="article"> <p>上一篇：<a href="/Article-2287748.html">SB2230直流數(shù)字電阻測(cè)試儀講解</a></p> <p>下一篇：<a href="/Article-2287667.html">PC9A型數(shù)字微歐使用說(shuō)明書(shū)</a></p> </div> <div id="iqaqewgi6e" class="clear"></div> </div> </div> <div id="iqaqewgi6e" class="n-9"> <div id="iqaqewgi6e" class="c-right"> <div id="iqaqewgi6e" class="c-1 r-pro"> <div id="iqaqewgi6e" class="c-left"> <div id="iqaqewgi6e" class="h-2"><a href="/products.html">產(chǎn)品分類</a></div> <ul> <li><a 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