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id="f55nvtnxj1n" class="newsnr"> <h1>QJ84A數(shù)字直流電橋講解</h1> <p class="source"><span>日期：2023-09-10</span><span>瀏覽：1198次</span></p> <div> <p><span style="position:absolute;z-index:1;margin-left:985.6000px;margin-top:26.1333px;width:43.0000px;height:40.0000px"></span><span style=";font-family:黑體;font-size:19px;background:rgb(204,204,204)"><span style="font-family:黑體"></span></span></p><p><span style=";font-family:黑體;font-size:19px;background:rgb(204,204,204)"><span style="font-family:黑體">QJ84A數(shù)字直流電橋講解</span></span></p><p>一、概述</p><p><br/></p><p style="vertical-align:baseline;line-height:25px"><span style=";font-family:'Times New Roman';font-size:16px"> </span><span style=";font-family:宋體;font-size:16px"> <span style="font-family:宋體">本型數(shù)字式直流電橋是傳統(tǒng)凱爾文電橋更新?lián)Q代產</span></span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">品，適合于實驗室、工礦企業(yè)在作業(yè)現(xiàn)場對直流電阻作精密測量。</span></span></p><p style="line-height:25px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">該產品的主要特點是：</span></span></p><p style="margin-left:7px;line-height:25px"><span style=";font-family:宋體;font-size:16px"> <span style="font-family:宋體">1、采用4 </span></span><sup><span style=";font-family:宋體;font-size:16px;vertical-align:super"><span style="font-family:宋體">1</span></span></sup><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">/</span></span><sub><span style=";font-family:宋體;font-size:16px;vertical-align:sub"><span style="font-family:宋體">2</span></span></sub><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">位液晶顯示，比</span><span style="font-family:宋體">QJ84更適合在露天或光線較強的場合使用，讀數(shù)直觀、清晰穩(wěn)定性好。</span></span></p><p style="margin-left:7px;line-height:25px"><span style=";font-family:宋體;font-size:16px"> <span style="font-family:宋體">2、由于采用了多重保護措施，也能測量感性試品（電機、變壓器等）的直流電阻。</span></span></p><p style="margin-left:7px;line-height:25px"><span style=";font-family:宋體;font-size:16px"> <span style="font-family:宋體">3、內附標準電阻，不論任何場合，均可方便地對產品進行自校驗，以確認測量結果的可靠性。</span></span></p><p style="margin-left:7px;line-height:25px"><span style=";font-family:宋體;font-size:16px"> <span style="font-family:宋體">4、產品采用便攜式結構，交直流供電，特別適合無交流電源的作業(yè)現(xiàn)場使用。</span></span></p><p style="line-height:25px"><span style=";font-family:黑體;font-size:19px;background:rgb(204,204,204)"><span style="font-family:黑體">二、<span style="font-family: 黑體; font-size: 19px; background-color: rgb(204, 204, 204);">QJ84A數(shù)字直流電橋</span>主要技術指標</span> </span></p><div id="f55nvtnxj1n" class="tabledivclass" style="width: 99%; float: left;"><table border="1" cellspacing="0" align="left" style="max-width: 748px;"><tbody><tr style="height:32px" class="firstRow"><td width="67" valign="center" style="padding: 0px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="text-align:center;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">量程</span></span></p></td><td width="113" valign="center" style="padding: 0px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="text-align:center;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">測量范圍</span></span></p></td><td width="72" valign="center" style="padding: 0px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="text-align:center;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">分辨力</span></span></p></td><td width="183" valign="center" style="padding: 0px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="text-align:center;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">基準誤差極限</span></span></p></td></tr><tr style="height:32px"><td width="67" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">20m</span><span style="font-family:宋體">Ω</span></span></p></td><td width="113" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">0～19.999</span></span><span style="font-family:宋體;font-size:14px"><span style="font-family:'Times New Roman'"> </span><span style="font-family:Times New Roman">m</span><span style="font-family:宋體">Ω</span></span></p></td><td width="72" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">1</span><span style="font-family:宋體">μΩ</span></span></p></td><td width="183" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">±</span><span style="font-family:Times New Roman">(0.4%</span><span style="font-family:宋體">讀數(shù)</span><span style="font-family:Times New Roman">+0.1%</span><span style="font-family:宋體">滿度</span><span style="font-family:Times New Roman">)</span></span></p></td></tr><tr style="height:30px"><td width="67" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">200m</span><span style="font-family:宋體">Ω</span></span></p></td><td width="113" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">0～199.99</span></span><span style="font-family:宋體;font-size:14px"><span style="font-family:'Times New Roman'"> </span><span style="font-family:Times New Roman">m</span><span style="font-family:宋體">Ω</span></span></p></td><td width="72" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">10</span><span style="font-family:宋體">μΩ</span></span></p></td><td width="183" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">±</span><span style="font-family:Times New Roman">(0.1%</span><span style="font-family:宋體">讀數(shù)</span><span style="font-family:Times New Roman">+0.05%</span><span style="font-family:宋體">滿度</span><span style="font-family:Times New Roman">)</span></span></p></td></tr><tr style="height:32px"><td width="67" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">2</span><span style="font-family:宋體">Ω</span></span></p></td><td width="113" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">0～1.9999</span></span><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">Ω</span></span></p></td><td width="72" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">100</span><span style="font-family:宋體">μΩ</span></span></p></td><td width="183" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">±</span><span style="font-family:Times New Roman">(0.05%</span><span style="font-family:宋體">讀數(shù)</span><span style="font-family:Times New Roman">+0.02%</span><span style="font-family:宋體">滿度</span><span style="font-family:Times New Roman">)</span></span></p></td></tr><tr style="height:32px"><td width="67" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">20</span><span style="font-family:宋體">Ω</span></span></p></td><td width="113" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">0～19.999</span></span><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">Ω</span></span></p></td><td width="72" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">1 m</span><span style="font-family:宋體">Ω</span></span></p></td><td width="183" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">±</span><span style="font-family:Times New Roman">(0.0</span></span><span style="font-family:'Times New Roman';font-size:14px">5</span><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">%</span><span style="font-family:宋體">讀數(shù)</span><span style="font-family:Times New Roman">+0.0</span></span><span style="font-family:'Times New Roman';font-size:14px">2</span><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">%</span><span style="font-family:宋體">滿度</span><span style="font-family:Times New Roman">)</span></span></p></td></tr><tr style="height:32px"><td width="67" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">200</span><span style="font-family:宋體">Ω</span></span></p></td><td width="113" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">0～199.99</span></span><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">Ω</span></span></p></td><td width="72" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">10 m</span><span style="font-family:宋體">Ω</span></span></p></td><td width="183" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">±</span><span style="font-family:Times New Roman">(0.0</span></span><span style="font-family:'Times New Roman';font-size:14px">5</span><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">%</span><span style="font-family:宋體">讀數(shù)</span><span style="font-family:Times New Roman">+0.0</span></span><span style="font-family:'Times New Roman';font-size:14px">2</span><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">%</span><span style="font-family:宋體">滿度</span><span style="font-family:Times New Roman">)</span></span></p></td></tr><tr style="height:32px"><td width="67" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">2</span><span style="font-family:宋體">ΚΩ</span></span></p></td><td width="113" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">0～1.9999</span></span><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">ΚΩ</span></span></p></td><td width="72" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">100 m</span><span style="font-family:宋體">Ω</span></span></p></td><td width="183" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">±</span><span style="font-family:Times New Roman">(0.0</span></span><span style="font-family:'Times New Roman';font-size:14px">5</span><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">%</span><span style="font-family:宋體">讀數(shù)</span><span style="font-family:Times New Roman">+0.0</span></span><span style="font-family:'Times New Roman';font-size:14px">2</span><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">%</span><span style="font-family:宋體">滿度</span><span style="font-family:Times New Roman">)</span></span></p></td></tr><tr style="height:32px"><td width="67" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">20</span><span style="font-family:宋體">ΚΩ</span></span></p></td><td width="113" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">0～19.999</span></span><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">ΚΩ</span></span></p></td><td width="72" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">1</span><span style="font-family:宋體">Ω</span></span></p></td><td width="183" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:14px;line-height:25px"><span style="font-family:宋體;font-size:14px"><span style="font-family:宋體">±</span><span style="font-family:Times New Roman">(0.0</span></span><span style="font-family:'Times New Roman';font-size:14px">5</span><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">%</span><span style="font-family:宋體">讀數(shù)</span><span style="font-family:Times New Roman">+0.0</span></span><span style="font-family:'Times New Roman';font-size:14px">2</span><span style="font-family:宋體;font-size:14px"><span style="font-family:Times New Roman">%</span><span style="font-family:宋體">滿度</span><span style="font-family:Times New Roman">)</span></span></p></td></tr></tbody></table></div><p style="line-height:25px"><span style=";font-family:'Times New Roman';font-size:16px"> </span></p><p style="margin-left:15px;line-height:25px"><span style=";font-family:'Times New Roman';font-size:16px"> </span><span style=";font-family:宋體;font-size:16px"> </span><span style=";font-family:'Times New Roman';font-size:16px">1</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">、</span></span><span style=";font-family:'Times New Roman';font-size:16px"> </span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">環(huán)境條件：溫度</span></span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">5～35℃，相對濕度25%～75%。</span></span></p><p style="text-indent:40px;line-height:25px"><span style=";font-family:'Times New Roman';font-size:16px">2</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">、</span></span><span style=";font-family:'Times New Roman';font-size:16px"> </span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">供電電源：市電</span><span style="font-family:Times New Roman">AC220V</span><span style="font-family:宋體">或干電池（</span><span style="font-family:Times New Roman">1</span><span style="font-family:宋體">號電池六節(jié)）。</span></span></p><p style="text-indent:40px"><span style=";font-family:宋體;font-size:16px">3</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">、</span></span><span style=";font-family:宋體;font-size:16px"> </span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">外形尺寸：</span><span style="font-family:宋體">240（深）×320（寬）×160（高）㎜。</span></span></p><p style="margin-left:15px"><span style=";font-family:宋體;font-size:16px"> </span><span style=";font-family:宋體;font-size:16px"> </span><span style=";font-family:宋體;font-size:16px">4</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">、</span> <span style="font-family:宋體">重</span> <span style="font-family:宋體">量：約</span><span style="font-family:宋體">4㎏</span></span></p><p><span style=";font-family:黑體;font-size:19px;background:rgb(204,204,204)"><span style="font-family:黑體">三、<span style="font-family: 黑體; font-size: 19px; background-color: rgb(204, 204, 204);">QJ84A數(shù)字直流電橋</span>工作原理</span> </span></p><p><span style=";font-family:宋體;font-size:16px"> </span><span style=";font-family:宋體;font-size:16px"> <span style="font-family:宋體">本產品的工作原理框圖如下：</span></span></p><p style="text-align: center"><img style="max-width:800px;max-height:300%;" src="https://img53.chem17.com/9/20230910/638299390031617055253.png" title="U9N78)P%[1LQ`C3}@UX@NU9.png" alt="U9N78)P%[1LQ`C3}@UX@NU9.png"/></p><p><br/></p><p><span style=";font-family:黑體;font-size:19px;background:rgb(192,192,192)"><span style="font-family:黑體">四</span></span><span style=";font-family:黑體;font-size:19px;background:rgb(204,204,204)"><span style="font-family:黑體">、面板設置及用途</span> </span></p><p style="text-align: center"><img style="max-width:800px;max-height:300%;" src="https://img44.chem17.com/9/20230910/638299390508687742683.png" title="A%8KH{(3Q6TC`H4]S2)CTLO.png" alt="A%8KH{(3Q6TC`H4]S2)CTLO.png"/></p><p><span style=";font-family:宋體;font-size:16px;background:rgb(204,204,204)"><span style="font-family:宋體">附錄</span></span><span style=";font-family:宋體;font-size:16px;background:rgb(204,204,204)"> </span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">：</span></span></p><p style="margin-left:16px"><span style=";font-family:宋體;font-size:16px"> </span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">內附校驗用標準電阻的誤差及校驗時應顯示范圍見下表：</span></span></p><div id="f55nvtnxj1n" class="tabledivclass" style="width: 99%; float: left;"><table border="1" cellspacing="0" align="left" style="max-width: 748px;"><tbody><tr style="height:20px" class="firstRow"><td width="72" valign="top" style="padding: 0px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="text-indent: 16px"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">檔位</span></span></p></td><td width="116" valign="top" style="padding: 0px; border-width: 1px; border-style: solid; border-color: windowtext;"><p><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">標準電阻標稱值</span></span></p></td><td width="63" valign="top" style="padding: 0px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="text-align:center"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">誤差</span></span></p></td><td width="170" valign="top" style="padding: 0px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="text-align:center"><span style="font-family:宋體;font-size:16px"> </span><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">阻值范圍（顯示范圍）</span></span></p></td></tr><tr style="height:26px"><td width="72" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:16px"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">20 mΩ</span></span></p></td><td width="116" valign="top" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-align:center"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">10 mΩ</span></span></p></td><td width="63" valign="top" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-align:center"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">1%</span></span></p></td><td width="170" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:16px"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">9.9</span></span><span style="font-family:宋體;font-size:16px">00</span><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">－</span><span style="font-family:宋體">10.1</span></span><span style="font-family:宋體;font-size:16px">00</span><span style="font-family:宋體;font-size:16px"> <span style="font-family:宋體">mΩ</span></span></p></td></tr><tr style="height:27px"><td width="72" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:16px"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">200 </span></span><span style="font-family:宋體;font-size:16px">m</span><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">Ω</span></span></p></td><td width="116" valign="top" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-align:center"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">100mΩ</span></span></p></td><td width="63" valign="top" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-align:center"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">0.5%</span></span></p></td><td width="170" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:16px"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">99.5 </span></span><span style="font-family:宋體;font-size:16px">0</span><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">－</span><span style="font-family:宋體">100.5</span></span><span style="font-family:宋體;font-size:16px">0</span><span style="font-family:宋體;font-size:16px"> <span style="font-family:宋體">mΩ</span></span></p></td></tr><tr style="height:27px"><td width="72" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:16px"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">2Ω</span></span></p></td><td width="116" valign="top" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-align:center"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">1Ω</span></span></p></td><td width="63" valign="top" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-align:center"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">0.2%</span></span></p></td><td width="170" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:16px"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">0.998</span></span><span style="font-family:宋體;font-size:16px">0</span><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">－</span><span style="font-family:宋體">1.002</span></span><span style="font-family:宋體;font-size:16px">0</span><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">Ω</span></span></p></td></tr><tr style="height:27px"><td width="72" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:16px"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">20Ω</span></span></p></td><td width="116" valign="top" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-align:center"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">10Ω</span></span></p></td><td width="63" valign="top" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-align:center"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">0.1%</span></span></p></td><td width="170" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:16px"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">9.99</span></span><span style="font-family:宋體;font-size:16px">0 </span><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">－</span><span style="font-family:宋體">10.01</span></span><span style="font-family:宋體;font-size:16px">0</span><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">Ω</span></span></p></td></tr><tr style="height:27px"><td width="72" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:16px"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">200Ω</span></span></p></td><td width="116" valign="top" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-align:center"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">100Ω</span></span></p></td><td width="63" valign="top" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-align:center"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">0.1%</span></span></p></td><td width="170" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:16px"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">99.9</span></span><span style="font-family:宋體;font-size:16px">0</span><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">－</span><span style="font-family:宋體">100.1</span></span><span style="font-family:宋體;font-size:16px">0</span><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">Ω</span></span></p></td></tr><tr style="height:26px"><td width="72" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:16px"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">2ΚΩ</span></span></p></td><td width="116" valign="top" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-align:center"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">1ΚΩ</span></span></p></td><td width="63" valign="top" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-align:center"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">0.1%</span></span></p></td><td width="170" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:16px"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">0.999</span></span><span style="font-family:宋體;font-size:16px">0</span><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">－</span><span style="font-family:宋體">1.001</span></span><span style="font-family:宋體;font-size:16px">0</span><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">ΚΩ</span></span></p></td></tr><tr style="height:28px"><td width="72" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:16px"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">20ΚΩ</span></span></p></td><td width="116" valign="top" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-align:center"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">10ΚΩ</span></span></p></td><td width="63" valign="top" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-align:center"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">0.1%</span></span></p></td><td width="170" valign="center" style="padding: 0px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="text-indent:16px"><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">9.99</span></span><span style="font-family:宋體;font-size:16px">0</span><span style="font-family:宋體;font-size:16px"><span style="font-family:宋體">－</span><span style="font-family:宋體">10.01ΚΩ</span></span></p></td></tr></tbody></table></div><p style="margin-left:16px"><span style="text-indent: 32px; font-family: 宋體; font-size: 16px;"><br/></span></p><p style="margin-left:16px"><span style="text-indent: 32px; font-family: 宋體; font-size: 16px;"><br/></span></p><p style="margin-left:16px"><span style="text-indent: 32px; font-family: 宋體; font-size: 16px;"><br/></span></p><p style="margin-left:16px"><span style="text-indent: 32px; font-family: 宋體; font-size: 16px;"><br/></span></p><p style="margin-left:16px"><span style="text-indent: 32px; font-family: 宋體; font-size: 16px;"><br/></span></p><p style="margin-left:16px"><span style="text-indent: 32px; font-family: 宋體; font-size: 16px;"><br/></span></p><p style="margin-left:16px"><span style="text-indent: 32px; font-family: 宋體; font-size: 16px;"><br/></span></p><p style="margin-left:16px"><span style="text-indent: 32px; font-family: 宋體; font-size: 16px;"><br/></span></p><p style="margin-left:16px"><span style="text-indent: 32px; font-family: 宋體; font-size: 16px;"><br/></span></p><p style="margin-left:16px"><span style="text-indent: 32px; font-family: 宋體; font-size: 16px;"><br/></span></p><p style="margin-left:16px"><span style="text-indent: 32px; font-family: 宋體; font-size: 16px;"><br/></span></p><p style="margin-left:16px"><span style="text-indent: 32px; font-family: 宋體; font-size: 16px;">1</span><span style="text-indent: 32px; font-family: 宋體; font-size: 16px;">— 測量端子：用于接入被測電阻，被測電阻通過配套的</span></p><p style=";vertical-align:baseline;line-height:25px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">測量線接到這四個端子上。</span></span></p><p style=";vertical-align:baseline;line-height:25px"><span style="font-family: 宋體; font-size: 16px;">2— 顯示器：用于顯示測量結果，自左至右依次顯示4</span><sup><span style=";font-family:宋體;font-size:16px;vertical-align:super"> 1</span></sup><span style="font-family: 宋體; font-size: 16px;">/</span><sub><span style=";font-family:宋體;font-size:16px;vertical-align:sub">2</span></sub></p><p style="margin-left:29px;line-height:25px"><sub></sub></p><p style="line-height:25px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">位數(shù)字，量綱指示符及小數(shù)點。</span></span></p><p style="line-height:25px"><span style="font-family: 宋體; font-size: 16px; text-indent: 8px;">3— 電源開關：自鎖直鍵開關，使用時按下，用畢應再按使之彈起。</span></p><p style="line-height:25px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">4— 充電開關：自鎖直鍵開關，按下時試品充電，釋放時放電。</span></span></p><p style="line-height:25px"><span style=";font-family:宋體;font-size:16px">5</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">— 測量開關：無鎖直鍵開關，測量時按下，待量綱指示符（顯示器最末位）和小數(shù)點停止閃爍后即可得到正確結果，隨后該鍵即可釋放，而測量結果將保持到再次按下測量開關為止。</span></span></p><p style="line-height:25px"><span style=";font-family:宋體;font-size:16px">6</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">— 量程選擇開關：用于量程選擇，一般應根據(jù)被測電阻的估計值先選擇好量程進行測量。</span></span></p><p style="line-height:25px"><span style=";font-family:宋體;font-size:16px">7</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">— 校驗用標準電阻接線端：用于自校準時接通產品內部的校驗用標準電阻。</span></span></p><p style="line-height:25px"><span style=";font-family:黑體;font-size:19px;background:rgb(204,204,204)"><span style="font-family:黑體">五、<span style="font-family: 黑體; font-size: 19px; background-color: rgb(204, 204, 204);">QJ84A數(shù)字直流電橋</span>使用方法</span></span><span style="font-family: 宋體; font-size: 16px;"> </span></p><p style="line-height:25px"><span style="font-family: 宋體; font-size: 16px;">1、如果使用電池則在測量前按電池盒上的正、負標志裝好電池（</span><span style="font-family: 宋體; font-size: 16px;">1</span><span style="font-family: 宋體; font-size: 16px;">號干電池六節(jié)）。在使用市電時，則接通市電即可。</span></p><p style="margin-left:1px;line-height:25px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">2、按下電源按鈕，接通電源，預熱五分鐘，此時液晶顯示器相應量程的小數(shù)點和量綱指示符應點亮。同時可能</span></span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">首wei</span></span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">顯示“1"或顯示某一隨機數(shù)字，這是正常的。</span></span></p><p style="margin-left:1px;line-height:25px"><span style="font-family: 宋體; font-size: 16px;">3、將測量夾分別夾住被測電阻的兩端，測量線的另一端</span><span style="font-family: 宋體; font-size: 16px;"> </span><span style="font-family: 宋體; font-size: 16px;">按四線制分別接C1、P1、P2、C2</span></p><p style="margin-left:1px;line-height:25px"><span style="font-family: 宋體; font-size: 16px;">4</span><span style="font-family: 宋體; font-size: 16px;">、按下充電按鈕，一般試品可以進行下一步操作。</span></p><p style="margin-left:1px;line-height:25px"><span style="text-indent: 35px; font-family: 宋體; font-size: 16px;">5</span><span style="text-indent: 35px; font-family: 宋體; font-size: 16px;">、按下測量按鈕，開始幾秒鐘量綱指示符和小數(shù)點都一亮一暗閃爍，以提醒使用者測量過程還沒有結束，直到量綱指示符及小數(shù)點停止閃爍，即測量過程已結束，此時可得到正確測量結果，松開測量按鈕，測量結果不再改變，直到再次按下測量按鈕。如果儀器顯示“0000"并不斷閃爍，用于提醒使用者量程選擇不合適已超量限，此時應先釋放充電開關（感性試品尤為重要），再將量程選擇開關旋至更高的量程</span></p><p style="margin-left:1px;line-height:25px"><span style="font-family: 宋體; font-size: 16px;">6、測得結果后，應馬上釋放充電按鈕，以免過大的測試電流對試品的影響，同時也可減小電源消耗及儀器的溫升。</span></p><p style="margin-left:1px;line-height:25px"><span style="font-family: 宋體; font-size: 16px;">7、當因為某種原因不能確定產品是否工作正常，或對測量數(shù)據(jù)有異議時，可用測量線將Rx測量端與校驗電阻的各對應端子相連接（其中C2不用接），其具體接線如圖所示。再按測量未知電阻相同的操作方法測量，若每檔測試數(shù)據(jù)為“10000"左右即為正常（不計小數(shù)點）。</span></p><p style="margin-left:8px;text-indent:24px;line-height:25px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">注：校驗作業(yè)只能驗證儀器能否正常工作，而不能替代正規(guī)的計量檢定。</span></span></p><p style="text-align: center"><img style="max-width:800px;max-height:300%;" src="https://img41.chem17.com/9/20230910/638299392597748696561.png" title="$ZZW9[6AR~41]7HN0R}RFXF.png" alt="$ZZW9[6AR~41]7HN0R}RFXF.png"/></p><p><span style=";font-family:黑體;font-size:19px;background:rgb(192,192,192)"><span style="font-family:黑體">六、<span style="font-family: 黑體; font-size: 19px; background-color: rgb(204, 204, 204);">QJ84A數(shù)字直流電橋</span>注意事項</span></span><span style=";font-family:黑體;font-size:19px;background:rgb(192,192,192)"> </span></p><p style="margin-left:16px;text-indent:16px"><span style=";font-family:宋體;font-size:16px">1</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">、</span></span><span style=";font-family:宋體;font-size:16px"> </span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">安裝電池應嚴格按電池盒上的正、負標記安裝，切勿裝反，</span></span></p><p><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">長期不使用應將電池從電池盒中取出，以免電池漏液，損壞儀器。當量綱指示符及小數(shù)點不停地閃爍時，表明電源電量不足需要更換電池。</span></span></p><p><span style=";font-family:宋體;font-size:16px"> </span><span style=";font-family:宋體;font-size:16px"> <span style="font-family:宋體">2、測量時當量綱指示符及小數(shù)點停止閃爍時才能松開測量按鈕，方可得到正確測量結果。每次測量完畢，應及時釋放充電按鈕。 </span></span></p><p style="text-indent:32px"><span style=";font-family:宋體;font-size:16px">3</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">、平時應將儀器上蓋蓋好，放置在干燥、清潔、無粉塵和</span></span></p><p><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">腐蝕氣體的環(huán)境中，并避免受陽光直射。</span></span></p><p><span style=";font-family:黑體;font-size:19px;background:rgb(204,204,204)"><span style="font-family:黑體">七、<span style="font-family: 黑體; font-size: 19px; background-color: rgb(204, 204, 204);">QJ84A數(shù)字直流電橋</span>附則</span> </span></p><p style="margin-left:15px"><span style=";font-family:宋體;font-size:16px"> <span style="font-family:宋體">1、隨機供應的文件及附件：</span></span></p><p style="margin-left:15px"><span style=";font-family:宋體;font-size:16px"> <span style="font-family:宋體">（</span><span style="font-family:宋體">1）、裝箱單；</span></span></p><p style="margin-left:15px"><span style=";font-family:宋體;font-size:16px"> <span style="font-family:宋體">（</span><span style="font-family:宋體">2）、使用說明書；</span></span></p><p style="margin-left:15px"><span style=";font-family:宋體;font-size:16px"> <span style="font-family:宋體">（</span><span style="font-family:宋體">3）、產品合格證；</span></span></p><p style="margin-left:15px"><span style=";font-family:宋體;font-size:16px"> <span style="font-family:宋體">（</span><span style="font-family:宋體">4）、專用測量線四根；</span></span></p><p style="margin-left:15px"><span style=";font-family:宋體;font-size:16px"> <span style="font-family:宋體">（</span><span style="font-family:宋體">5）、電源線一根。</span></span></p><p style="margin-left:15px"><span style=";font-family:宋體;font-size:16px"> <span style="font-family:宋體">2、在用戶遵守保管和使用規(guī)則下，從制造廠發(fā)貨日起12</span></span></p><p style="margin-left:15px"><span style=";font-family:宋體;font-size:16px"> </span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">個月內，如因產品質量不良而不能正常工作時，本廠無償?shù)貫?/span></span></p><p><span style="position:absolute;z-index:1;margin-left:960.0000px;margin-top:36.1333px;width:50.0000px;height:33.0000px"><img width="50" height="33" src="https://www.chem17.com/UserManage/ueditor/themes/default/images/spacer.gif" word_img="file:///C:/Users/ADMINI~1/AppData/Local/Temp/ksohtml7996/wps7.png" style="background:url(https://www.chem17.com/UserManage/ueditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd"/></span><span style=";font-family:宋體;font-size:16px"> </span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">用戶修理。</span></span><span style=";font-family:'Times New Roman';font-size:14px"> </span></p><p><br/></p> <div id="f55nvtnxj1n" class="clear"></div> </div> <div id="f55nvtnxj1n" class="article"> <p>上一篇：<a href="/Article-3470255.html">電纜導體電阻測試儀【上海康登電氣】技術參數(shù)</a></p> <p>下一篇：<a href="/Article-3466366.html">從三個方面讓你對超低頻高壓發(fā)生器有更多的了解</a></p> 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