实验室用PHS-2000笔式酸度�?参数-价格-中国粉体罐�/title>

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} }); function showliuyan(me, showtype){ if(showtype==0){ //$("#Content").val($("#Content").attr('placeholder')); Content= document.getElementById('PopMsgFrom').Content.getAttribute('placeholder'); document.getElementById('PopMsgFrom').Content.value=Content; } if(showtype==1){ // $("#Content").val($(me).text()); alert($(me).text()); document.getElementById('PopMsgFrom').Content.value=$(me).text(); } $(".fxp").css("display","flex"); } function close_popwin(){ $(".fxp").css("display","none"); // 关闭虚拟电话后的留言� $(".dhxj").css("display","none"); $(".dhxjbox").css("display", "none"); $(".dhxjbox2").css("display", "none"); return false; } </script>  <div class="cpjs"> <div class="cpjs_tab"> <div class="js_cpjj" style="border-bottom: 3px solid #1479d7; color: #1479d7;">产品介绍</div> <div class="js_cxd">创新炸�/div> <div class="js_xgfa">相关方案</div> <div class="js_xgzl">相关资料</div> <div class="js_yhpl">用户评论</div> <div class="js_gsdt">公司动�?/div> <div class="js_wsj">问商宵�/div> </div> <script> $(function(){ // 切换 $(".cpjs_tab a").click(function(){ $(".cpjs_tab a").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <table cellspacing="0" cellpadding="2" border="1" bordercolor="#f2f2f2" width="100%"><tbody><tr><td>品牌</td><td>汇谱分析</td><td>型号</td><td>PHS-2000</td></tr><tr><td>类型</td><td>实验室PH讠�/td><td>显示方式</td><td>自动数显</td></tr><tr><td>测量范围</td><td>0.0~14.0 PH</td><td>精度</td><td>��0.2 PH</td></tr><tr><td>温度补偿范围</td><td>不大�?5％（℃）</td><td>电源电压</td><td>4��1.5（V（�/td></tr><tr><td>工作温度</td><td>0~50（℃（�/td><td></td><td></td></tr></tbody></table><p><strong>一� PHS-2000笔式酸度计主要技术指标：</strong></p><p> 1� 测量范围�?.0~14.0 PH</p><p> 2．准确度�?#177;0.2 PH</p><p> 3．电池：4��1.5V(AG-13型钮扣电�?</p><p> 4．电池寿命：1000小时</p><p> 5．工作温度：0~50� 6．相对温度：不大�?5＄�/p><p> 7．外形尺寸：142��29��15mm</p><p> 8．调零：由补偿电位器调整</p><p> 9．重量：65兊�/p><p><strong>二．PHS-2000笔式酸度计校准：</strong></p><p> 1� 将PH电极浸入PH值为6.86�?5℃）的混合磷酸盐标准缓冲溶液中，并轻轻摇动、�/p><p> 2� 用小起子调整校整电位器，直到显示值与标准缓冲溶液在环境温度下的PH值相符、�/p><p> 3� 将PH电极插入PH值为14.00的磷苯二甲酸氢钾或PH9.18的硼砂标准缓冲溶液中、�/p><p> 4� 过约二分钟左右，显示值与缓冲溶液的PH值相比应在误差允许范围内、�/p><p> 注意事项：校准后已使用（或放置）很长时间；电极使用特别频繁；测量精度要求比较高，在以上情况下，PH计必须重新校准、�/p><p><strong>三．PHS-2000笔式酸度计操作步骤：</strong></p><p> 1� 取下保护奖�/p><p> 2� 先用蒸馏水清洗PH的电极，并用滤纸将电极擦干、�/p><p> 3� 接通位于电池仓上的开兲�/p><p> 4� 将PH插入被测液体，直到液体浸到“浸没线”，条件允许，可使用溶液浸到略高于“浸没线”的位置、�/p><p> 5� 轻轻地搅拌溶液并等待二分钟左右，读取显示值、�/p><p> 6� 使用完毕，清洗电极，关掉开关，套上保护套、�/p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; font-size: 14px; margin: 10px 0 0; line-height: 26px;"> 暂无数据� </p> </div>  <div class="xgfa"> <div class="xgfa_tit"> <div> <span></span>相关方案 </div> </div> <div class="xgfa_box" style="display: block;"><div style="padding:10px;">暂无相关方案、�/div> </div> </div> <script> $(function(){ // 切换 $(".xgfa_tit_ul li").hover(function(){ $(".xgfa_tit_ul li").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); var _index = $(this).index(); $(".xgfa_box").css("display","none"); $(".xgfa_box").eq(_index).css("display","block"); }); }); </script>  <div class="xgzl"> <div class="cxd_tit"><span></span>相关资料</div> <div class="xgzl_box"><div style="padding:10px;">暂无数据、�/div> </div> </div>  <div class="yhpl"> <div class="cxd_tit"><span></span>用户评论</div> <form id="FormComments" action="" method="post" onsubmit="return false"> <input name="SaveProComments" id="SaveProComments" type="hidden" value="yes" /> <input name="ProductID" id="ProductID" type="hidden" value="301306" /> <input name="ProQuality" id="ProQuality" type="hidden" value="10" /> <input name="ProService" id="ProService" type="hidden" value="10" /> <input name="ProUsability" id="ProUsability" type="hidden" value="10" /> <input name="ProCostperformance" id="ProCostperformance" type="hidden" value="10" /> <div class="yhpl_pf"> <div> <p>产品质量</p> <div><span id="Quality" class="stars star10"></span><span id="Quality_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>售后服务</p> <div><span id="Service" class="stars star10"></span><span id="Service_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>易用�?/p> <div><span id="Usability" class="stars star10"></span><span id="Usability_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>性价毓�/p> <div><span id="Costperformance" class="stars star10"></span><span id="Costperformance_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> </div> <div class="yhpl_pftit">评论内容</div> <textarea name="Comments" id="ProComments" onfocus="checklogin();" placeholder="分享产品使用经验/采购评价（不超过500字）">