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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> > JYM-303三相標(biāo)準(zhǔn)電能表技術(shù)講解</span></div>  <div id="iqaqewgi6e" class="n-3 c-news"> <div id="iqaqewgi6e" class="newsnr"> <h1>JYM-303三相標(biāo)準(zhǔn)電能表技術(shù)講解</h1> <p class="source"><span>日期：2023-01-04</span><span>瀏覽：842次</span></p> <div> <p style="text-indent:38px;text-autospace:none"><span style="font-size: 18px;"><strong><span style="font-family: 黑體;">JYM-303三相標(biāo)準(zhǔn)電能表技術(shù)講解</span></strong></span></p><p style="text-indent:38px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">三相多功能標(biāo)準(zhǔn)表</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">是我公司開發(fā)的高精度多功能寬量程標(biāo)準(zhǔn)電能表。其精度等級(jí)為</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">0.05</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">級(jí)。重量輕，體積小，精度高，采用</span><span style="font-family:黑體">DSP、嵌入式技術(shù)，以及溫度自動(dòng)平衡技術(shù)和其他補(bǔ)償技術(shù)，指標(biāo)穩(wěn)定，功能豐富，界面新穎，操作清晰簡(jiǎn)單，工作可靠。</span></span></p><p style="text-indent:38px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">可廣泛應(yīng)用于電能計(jì)量行業(yè)、電能實(shí)驗(yàn)室和其他相關(guān)部門，既可以在實(shí)驗(yàn)室使用，又能攜帶到現(xiàn)場(chǎng)工作。</span></span></p><p style="text-indent:42px;text-autospace:none"><strong><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">注意：為確保您的工作順利進(jìn)行，更為確保您和您使用的設(shè)備的安全，請(qǐng)您在使用本產(chǎn)品前仔細(xì)閱讀本說明書。</span></span></strong><strong></strong></p><p><strong><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">第二章</span> </span></strong><strong><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">功能特點(diǎn)</span></span></strong><strong></strong></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">1.采用標(biāo)準(zhǔn)便攜鋁機(jī)箱，體積更小（目前為國(guó)內(nèi)同類產(chǎn)品體積最小355*145*185mm）重量更輕（7.5公斤），更加方便攜帶。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">2. 寬量程測(cè)量：電壓測(cè)量范圍（相電壓）：1～560V。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">電流測(cè)量范圍：</span> <span style="font-family:黑體">10mA ～120A</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">3. 多種方式測(cè)量：可在單相、三相四線Y/三線Δ等各種接線方式下對(duì)交流電壓、電流、功率（有功功率、無(wú)功功率、視在功率）及電能進(jìn)行4象限測(cè)量；其中無(wú)功功率及電能可進(jìn)行真無(wú)功、夸相無(wú)功、人工中性點(diǎn)無(wú)功等多方式測(cè)量。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">4. 多功能測(cè)量：</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">a. </span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">電壓、電流、相位、頻率、有功、無(wú)功、功率因素、誤</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">差等基本測(cè)量功能。</span></span></p><p style="margin-left:28px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">b. </span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">電壓、電流、功率穩(wěn)定度測(cè)量（多達(dá)</span><span style="font-family:黑體">5種功率穩(wěn)定度算法）。</span></span></p><p style="margin-left:28px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">c. </span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">電壓、電流三相幅度不對(duì)稱度測(cè)量。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">d. </span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">電壓、電流三相不平衡度測(cè)量。</span></span></p><p style="margin-left:28px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">e.</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">相位不對(duì)程度測(cè)量。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">f. 向量圖顯示，多種向量圖顯示方式（順時(shí)針旋轉(zhuǎn)、逆時(shí)針旋</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">轉(zhuǎn)；</span><span style="font-family:黑體">12：00點(diǎn)鐘、3：00點(diǎn)鐘基準(zhǔn)位置可選；參考基準(zhǔn)可變；相位</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">顯示方式：</span><span style="font-family:黑體">0～360o或±180o可設(shè)置）以滿足各種顯示習(xí)慣。</span></span></p><p style="margin-left:28px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">g.波形顯示，諧波分析，</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">失真度計(jì)算。頻譜圖顯示；可顯示諧</span></span></p><p style="margin-left:28px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">波的幅值、含量、相位。頻譜圖具有放大功能。</span></span></p><p style="margin-left:28px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">h. </span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">需量測(cè)量</span></span></p><p style="margin-left:28px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">i. </span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">空間磁感應(yīng)強(qiáng)度測(cè)量。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">j. </span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">裝置同名端壓降測(cè)量。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">k. </span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">測(cè)量被檢表電表常數(shù)、頻率。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">l. </span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">基波功率測(cè)量。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">m. 可同時(shí)校驗(yàn)3路不同類型的表的誤差（有功、無(wú)功、視在、 </span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">電壓、電流）。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">n. 3路脈沖輸出口，常數(shù)可分別設(shè)置（自動(dòng)或手動(dòng)設(shè)置），常</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">數(shù)的類型也可分別設(shè)置：有功、無(wú)功、視在、電壓、電流。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">o. 可校驗(yàn)由3塊單相表組成的裝置的綜合誤差。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">p. 可作為3塊單相標(biāo)準(zhǔn)表使用。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">5. </span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">基波功率測(cè)量：既可測(cè)全功率（包括基波和各次諧波的功</span></span></p><p><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">率），也可只測(cè)基波功率。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">6. </span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">電能誤差校驗(yàn)：可校驗(yàn)電能表及電能表檢定裝置的電能計(jì)量誤差和標(biāo)準(zhǔn)偏差估計(jì)值。并且脈沖數(shù)、被校表常數(shù)可自動(dòng)設(shè)置，以提高工作效率。特別是對(duì)多常數(shù)的標(biāo)準(zhǔn)表、電能表檢定裝置，使用起來更加方便。特殊補(bǔ)償技術(shù)，在小負(fù)荷時(shí)不會(huì)因負(fù)荷太?。娔苊}沖頻率太低）而引起誤差的跳動(dòng)太大。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">可顯示當(dāng)前誤差、標(biāo)準(zhǔn)偏差估計(jì)值、平均誤差。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">7．</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">諧波分析：可分析工頻電壓、電流的</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">51</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">次以下諧波。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">8. </span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">數(shù)據(jù)和圖形顯示：可直觀顯示測(cè)量工作狀態(tài)和多種測(cè)量數(shù)據(jù)?？芍庇^顯示被測(cè)電壓、電流的波形，電壓、電流相位矢量圖、諧波分析波棒圖。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">9. </span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">手動(dòng)或</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">自動(dòng)量程切換。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">10 . 具有存儲(chǔ)功能，可存儲(chǔ)30組數(shù)據(jù)記錄。并可根據(jù)條件檢索查閱。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">11. 具有拼音輸入法：可輸入漢字、字母、符號(hào)</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">12. 接線：寬量程電流輸入端子公用，改變電流無(wú)需改變接線，方便使用。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">13. 多用途: 可作為標(biāo)準(zhǔn)表，也可作為電能表檢定裝置測(cè)試儀?？蓡为?dú)使用，也可與PC機(jī)通訊遙控使用，還可配檢定裝置使用。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">14. 多種通訊接口：RS485、RS232、USB，采用異步通信時(shí)：波特率可設(shè)置。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">15. 配置6.4</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">寸</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">640*480</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">點(diǎn)陣</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">TFT</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">彩色液晶顯示器，顯示清晰，色彩逼真。</span></span></p><p style=";text-autospace:none;text-align:center"><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">16. 操作：人性化設(shè)計(jì)，功能合理組合，操作非常簡(jiǎn)捷。</span></span></p><p><strong><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體"></span><strong style="font-size: 18px; text-indent: 38px; white-space: normal;"><span style="font-family: 黑體;">JYM-303三相標(biāo)準(zhǔn)電能表講解</span></strong><span style="font-family:黑體"></span></span></strong><strong></strong></p><p><strong><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">3.1 信號(hào)范圍</span></span></strong></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">電壓：</span><span style="font-family:黑體">1～560V（相電壓）</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">電流：</span><span style="font-family:黑體">10mA ～120A</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">頻率：</span><span style="font-family:黑體">40~70Hz</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">輸入脈沖：</span><span style="font-family:黑體">max. 2MHz（TTL）</span></span></p><p style="margin-left:38px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">輸出頻率：使用自動(dòng)常數(shù)，在額定量程時(shí)，輸出脈沖頻率</span> <span style="font-family:黑體">Fout : 60KHz</span></span></p><p><span style=";font-family:黑體;font-size:16px"> </span><strong><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">3.2 準(zhǔn)確度</span></span></strong><strong></strong></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">1</span></span><strong><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">. </span></span></strong><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">電壓測(cè)量（</span><span style="font-family:黑體">RMS）：準(zhǔn)確度：0.05級(jí)</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">（</span><span style="font-family:黑體">Rd%）。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">量程：</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">30V</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">、</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">60V</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">、</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">120V</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">、</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">240V</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">、</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">480V</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">五檔，可自動(dòng)、</span> <span style="font-family:黑體">手</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">動(dòng)換檔。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">2. 電流測(cè)量（RMS）：準(zhǔn)確度：0.05級(jí)</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">（</span><span style="font-family:黑體">Rd%）。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">量程：</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">0.2A</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">、</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">1A</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">、</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">5A</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">、</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">20A</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">、</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">100A</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">五檔，可自動(dòng)、手動(dòng)</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">換檔。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">3. 有功功率、有功電能測(cè)量準(zhǔn)確度：0.05級(jí)（或0.02級(jí)）</span></span></p><p><span style=";font-family:黑體;font-size:16px"> </span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">（</span><span style="font-family:黑體">Rd%）。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">4. </span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">無(wú)功功率、無(wú)功電能測(cè)量準(zhǔn)確度：</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">0.1</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">級(jí)（</span><span style="font-family:黑體">Rd%）</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">5. 頻率測(cè)量：測(cè)量范圍：45</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">～</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">70Hz</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">；</span></span></p><p style="text-indent:176px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">分辨率：</span> </span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">0.0001Hz；</span></span></p><p style="text-indent:176px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">準(zhǔn)確度：</span> <span style="font-family:黑體">± 0</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">.01Hz。</span></span></p><p style="margin-left:61px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">6. </span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">相位測(cè)量：測(cè)量范圍：</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">0</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">～</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">359.999</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">o（0～</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">±180o）;</span></span></p><p style="margin-left:65px;text-indent:120px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">分辨率：</span> </span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">0.001</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">o</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">; </span></span></p><p style="margin-left:65px;text-indent:120px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">準(zhǔn)確度：</span> </span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">±</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">0.05</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">o。</span></span></p><p style="margin-left:37px;text-indent:38px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">7</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">．同名端壓降測(cè)量：</span></span></p><p style="margin-left:37px;text-indent:144px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">測(cè)量范圍：</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">0</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">～</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">400mV；</span></span></p><p style="text-indent:176px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">分辨率：</span> </span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">0.1mV；</span></span></p><p style="text-indent:176px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">準(zhǔn)確度：</span> <span style="font-family:黑體">±</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">0.05</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">％</span><span style="font-family:黑體">±</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">1mV。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">8. </span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">磁感應(yīng)強(qiáng)度測(cè)量：</span></span></p><p style="text-indent:176px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">測(cè)量范圍：</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">0</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">～</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">0.25mT；</span></span></p><p style="text-indent:176px;text-autospace:none"><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">準(zhǔn)確度：</span><span style="font-family:黑體">±</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">10</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">％</span><span style="font-family:黑體">±</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">0.001mT。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">9. 諧波電壓測(cè)量：</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">2~10次：諧波含量 ≤30% 時(shí)；誤差I(lǐng)：0.1%</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">11~21次：諧波含量 ≤30% 時(shí)；誤差I(lǐng)：0.2%</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">22~51次：諧波含量 ≤30% 時(shí)；誤差I(lǐng)：0.5%</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">10. 諧波電流測(cè)量：2~51次：諧波含量 ≤50% 時(shí)；誤差I(lǐng)：0.1%</span></span></p><p><span style=";font-family:黑體;font-size:16px"> </span><strong><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">3.3 </span></span></strong><strong><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">輸入阻抗</span></span></strong><strong></strong></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">電壓輸入阻抗：</span><span style="font-family:黑體">≥</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">750K</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">Ω</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">電流輸入阻抗：</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">0.001</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">Ω。</span></span></p><p><strong><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">3.4 工作環(huán)境</span></span></strong><strong></strong></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">溫度：</span><span style="font-family:黑體">15</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">~</span></span><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">30 oC 溫度系數(shù)：0.0005/ oC ；</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">預(yù)熱時(shí)間：</span><span style="font-family:黑體">30分鐘。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">濕度：</span></span><strong><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">45</span></span></strong><span style=";font-family:黑體;font-size:16px"><span style="font-family:黑體">~80%R.H</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">供電電源：</span><span style="font-family:黑體">220V±10％ 50Hz±1％</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">功耗：</span><span style="font-family:黑體">≤50VA。</span></span></p><p><strong><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">3.5 其它</span></span></strong><strong></strong></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">體積：</span> <span style="font-family:黑體">355 × 185 × 145 mm。</span></span></p><p><span style=";font-family:黑體;font-size:16px"> <span style="font-family:黑體">重量：</span> <span style="font-family:黑體">7.5公斤。</span></span></p><p><br/></p> <div 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