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      <div class="bd"><span>热门关键词：</span>哈希水质分析仪，氨氮分析仪，cod分析仪，浊度仪，bod分析仪，溶解氧分析仪</div>
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          <div><span style="font-size: 16px;">一.<strong>溶氧仪</strong>注意事项<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　1. 每天使用前做一次标定，采用水饱和气法，一天内即使关过机也不必再标定；<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　2. 标定和测量时的温度不要相差太大，不超过+-5℃为宜；<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　3. 读数不正常一定要换溶氧膜(如开机后读数不稳定或不是从高到低趋于稳定)；<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　4. 换溶氧膜时电解液内不能留有气泡，膜不能折皱，多余的膜割除干净；<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　5. 传感器电解液干了一定要换溶氧膜；<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　6. 换溶氧膜时要用去离子水或蒸馏水冲掉旧电解液，滴入2-3滴新电解液甩干。普通溶氧传感器要滴满新电解液至液面鼓起，压上溶氧膜，不留气泡；盖膜要注入半量新电解液，旋紧；<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　7. 盖膜更换后即可使用，普通膜更换后应放置一夜，让膜*恢复平衡；<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　8. 溶氧膜表面受到沾污要细心清洗干净，不能损伤膜；<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　9. YSI正式推荐2-4周换一次溶氧膜，但在水质条件好、维护得当的情况下，甚至可长达半年换一次溶氧膜，前提是每次标定读数正常；<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　10. 测量时如果底部不断冒气泡，应将传感器头朝上，绑在电缆上，不能让气泡停留在溶氧膜表面；<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　11. 普通溶氧传感器测量时需要搅拌，适当的搅拌有利于获得真实的溶氧读数。快速脉冲法和微电极阵列(MEA )测量时无需搅拌；<br />&nbsp;</span></div><div><span style="font-size: 16px;">二、<strong>溶氧仪</strong>标定<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　1.&nbsp;<strong>溶氧仪</strong>采用水饱和气法；<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　2. 标定时以&ldquo;%&rdquo;方式，除非有特定要求，避免以&ldquo;mg/l&rdquo;方式；<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　3. 将传感器置于瓶内湿气中，不与水直接接触，瓶与大气不要*隔离；<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　4. 放置15分钟以上，让水气饱和，趋于平衡，或溶氧和温度读数稳定；<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　5. 输入正确的大气压数值(以mmHg 柱)；<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　6. 标定稳定与实测温度相差不大于+-5℃；<br />&nbsp;</span></div><div><span style="font-size: 16px;">　　7. 确定标定值。</span></div>
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