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PH test pen

total supply
9999 支
MOQ
1 支
brand
东莞钦源
area
GuangdongDongguan city
Delivery period:
Shipped within 3 days from the date of payment by the buyer
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area:Guangdong Dongguan city

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Dongguan Qinyuan Water Treatment Equipment Co

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Product Details
 一、 PH测试笔的用途
PH测试笔广泛用于净水、自来水、生活用水及各种液体的酸碱度测试。PH值在7.0为中性,7.0以下为酸性,7.0以上为碱性。
二、PH测试笔的主要技术指标:
PH测试笔测量范围(Range):0.00-14.00pH
精度(Accuracy):0.01PH 
PH测试笔的温度自动补偿(Automatic Temperature Compensation)  0 ℃-50℃
PH测试笔的工作电压(Battery):4*1.5V(AG-13型纽扣电池)
PH测试笔的工作温度(Operating Temperature):0 ℃-50℃
三、PH测试笔的操作步骤:
1.取下PH测试笔的保护套。
2.先用蒸馏水清洗PH测试笔的电极,并用滤纸将附附在电极上的水份吸干。
3.按通笔尾端的开关,将PH测试笔电极插入被测液体中。
4.轻轻地搅拌溶液并等待一分钟左右,读取PH测试笔显示值。
5.使用完毕,清洗PH测试笔电极,关掉开关,套上保护套。
四、PH测试笔电极的保养
    1.PH测试笔玻璃电极敏感球泡中可能有小气泡,它将影响电极的正常测量。使用时应摇动电极,使气泡跑出敏感球泡。
    2.若电极放置时间很久,且敏感球泡暴露在空气中,因电极干燥,使得响应变慢且显示值不稳定。这时,应将电极浸入蒸馏水中活化几小时。为了改善性能;每星期至少一次将PH测试笔电极插入蒸馏水中,每次几分钟。
    3.PH测试笔玻璃电极易打破,使用时需小心。
4.若敏感球泡上,发现无机盐沉积物,将电极分别浸入下列溶液约5分钟,即可恢复性能;0.1MHCL溶液、0.1MNaOH溶液,将后再浸入0.1MHCL溶液5分钟。
5.油脂薄膜同样影响敏感球泡的测量,要除去这薄膜,用75%的醇溶液冲洗敏感球泡,再用滤纸擦干,用水冲洗好,然后浸入蒸馏水中几个小时。
6.蛋白质沉淀物(如测牛奶、乳酪等)要浸入胃蛋白酶和盐酸溶液中进行消除处理。这种溶液在人事科有应准备好,将PH测试笔浸入溶液几个小时,然后用水冲洗干净,接着浸入蒸馏水几个小时。
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