原装E+H溶解氧PH电极CPF81-LH11A2为模拟式电极,溶氧电极dissolved oxygen rlcctrodc是测定液体中溶解氧浓度的电极。现在常用的是覆膜氧电极。电极的阴极是银或铂等贵金属,阳极是锡或铅等活泼的金属,醋酸缓冲液为电解质。两极的反应为:阴极O2 }- 2Hzf l}4e--- }40H一,阴极的贵金属不起反应,只起传递电子作用;阳极2Pb }2Ph2十十}C’ ,
阳极须释出电子,故为消耗性的:电极头上包有半透膜 r液体中的氧透过半透膜到达阴极,两极之间就产生电子流动,产生电流。氧浓度越大电流越强,溶氧浓度就变成电讯号,经过放人可以在显示仪或记录仪上显示出来.是适用于恶劣工况条件下测量的简单解决方案。即使在纤维化介质和大流量测量时,也可以进行可靠、高精度测量。内置安装支架,进行流通式安装或浸入式安装时,可以节约电极安装空间和时间。
测量原理 | 原装E+H溶解氧PH电极CPF81-LH11A2Glass electrode | |
Application | Water, waste water, process, galvanic | |
Characteristic | Resistent against electrolyte poisoning and dirt repellent gel-electrode including process connection NPT 3/4". Optional with amplifier. | |
Measurement range | pH 0-14 | |
Measuring principle | Gel-compact electrode with double chamber reference system, kalium nitrate bridge electrolyte and PTFE-diaphragm. | |
Design | Compact electrode in PPS housing with NPT3/4" process connection. | |
Material | PPS / glass / PTFE | |
Dimension | Length: 120´mm (4.68 inch) | |
Process temperature | -10°C - 110°C (14°F - 230°F) | |
Process pressure | max. 10 bar (145 psi) | |
temperature sensor | Optional with integrated Pt100. | |
Ex certification | ATEX FM | |
Connection | TOP68 connection head or fixed cable | |
Ingres protection | IP68CPF81-LH11A2 |
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