溶解氧电极 工业溶氧电极 溶氧电极
型号:GR/DO100
北京GR/DO100溶解氧电极现货供应采用极谱式电极,阳电极为Ag/AgCl、阴电极为铂金(Pt)组成,两者之间充满特殊成份的是电解液。由硅橡胶渗透膜包裹于电极四周。测量时,电极间加上675mV的极化电压,氧渗透过隔膜在阴极消耗,同时等量的氧在阳极产生,这个动态过程进行到两边的氧分压相同时达到平衡.此时两电极间的电流与氧分压成正比,二次表检测到此电流,再经过一系列变换,得到氧浓度和氧含量.同时,NTC(负温度系数热敏电阻)检测被测量液的温度,二次表采样后进行温度补偿,将氧浓度或氧含量折算成25℃时的值。
阴极反应:O2+2H2O+4e→4OH
阳极反应:4Ag+4Cl-→4AgCl+4e
北京GR/DO100溶解氧电极现货供应溶氧电极可用来测量用来对氧含量会影响反应速度、流程效率或环境的流程进行监控:如水产养殖、生物反应、环境测试(湖、溪、海洋)、水/废水处理、葡萄酒生产。 T401ppm型溶解氧电极具有较高的稳定性和可靠性,可在恶劣环境中使用,维护量也较小。
使用极谱式电极时,校正或测量前要预热至少15-30分钟。
为确保膜的电解液内没有气泡,ASI膜帽在设计上要求在装上膜头时要排除掉所有液腔内的空气。
膜表面上不能留有任何气泡,否则它会将气泡当作氧饱和样品进行读数。
即使使用的是带有自动温度补偿的仪表,也要在接近样品溶液的温度下校正电极。
电极应在空气中校正,以空气作为100%的饱和溶解氧标准点。
由于电极对氧的消耗,探头表面氧的浓度会瞬间降低,因此测量时要对溶液进行搅拌,这很重要。
北京GR/DO100溶解氧电极现货供应
如膜已破损则要进行更换。
技术参数:
测量范围:0~20mg/L (ppm),0~200%
适用温度:0~130℃温补范围:0~130℃测量原理:电流式传感器
透气膜厚:50µm
电极材质:UPVC或361L
传感材料:POM外管、银管、金丝带温度补偿功能
响应时间:60秒可达90%(上行,20℃时)
极化时间:2小时
最低流速:2.5cm/s
电缆长度:标准配置线长10m
安装方式:3/4管螺纹安装
标准配制:电极一支、备用膜头两只、专用电解液一瓶
● 温度范围:0~80℃
● 压力范围:0~58psig
● 溶氧响应时间:60秒(25℃时) 20秒(37℃时)
● 温度补偿:22KΩ
● 特征:316L不锈钢外壳
● 接口:pg13.5
实验室溶解氧电极
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Order.No.Type No.Description Price/RMB285106131 LF 613 T 4 pole cell,plastic shaft,1 m cable with 8 pole plug,sensor 4platinum rings,cell constant 1.0 cm-1,temp.-sensor NTC 30kOhm,length 120 mm,12 mm?,-5...+80°C4,680.00285106148 LF 413T-3 4 pole cell,plastic shaft,3 m cable with 8 pole plug,sensormaterial graphite,cell constant 0.475 cm-1,temp.-sensor NTC30 kOhm,length 120 mm,15.3 mm?,-5...+80°C4,910.00285106172 LF 413T 4 pole cell,plastic shaft,1.5 m cable with 8 pole plug,sensormaterial graphite,cell constant 0.475 cm-1,temp.-sensor NTC30 kOhm,length 120 mm,15.3 mm?,-5...+80°C4,820.00285106189 LF 713 T 4 pole cell,glass shaft,1 m cable with 8 pole plug,sensor 4platinum rings,cell constant 1.0 cm-1,temp.-sensor NTC 30kOhm,length 120 mm,12 mm?,-30...+135°C5,630.00285106190 LF 713 T-250 4 pole cell,glass shaft,1 m cable with 8 pole plug,sensor 4platinum rings,cell constant 1.0 cm-1,temp.-sensor NTC 30kOhm,length 250 mm,12 mm?,-30...+135°C9,090.00285106250 LF 813 T 5 pole cell,plastic shaft,1 m cable with 8 pole plug,sensor 5platinum rings,cell constant 0.650 cm-1,temp.-sensor NTC 30kOhm,length 120 mm,12 mm?,-5...+80°C5,210.00285106260 LF 913 T 5 pole cell,glass shaft,1 m cable with 8 pole plug,sensor 5platinum rings,cell constant 0.650 cm-1,temp.-sensor NTC 30kOhm,length 120 mm,12 mm?,-30...+135°C5,990.00285111623 9009/22 Membrane covered amperometric sensor,plastic shaft,kathodeplatinum,anode silver,temperature sensor NTC 100 kOhm,flange cap,2 m fixed cable with free ends,length 120 mm,12mm?,0...+50°C,i.e.for oxygen meter CG 8676,270.00285111664 9009/61 Membrane covered galvanic sensor,plastic shaft,IMTtemperature compensation,incl.maintenance set,1 m fixedcable with 8-pole plug,length 145 mm,15.25 mm?,0...+50°C8,850.00285111689 9009/610 Membrane covered galvanic sensor,plastic shaft,IMTtemperature compensation,incl.maintenance set,10 m fixedcable with 8-pole plug,length 145 mm,15.25 mm?,0...+50°C9,660.00285111697 9009/63 Membrane covered galvanic sensor,plastic shaft,IMTtemperature compensation,incl.maintenance set,3 m fixedcable with 8-pole plug,length 145 mm,15.25 mm?,0...+50°C9,120.00285112188 LF 1101 T HD 2 pole cell,glass shaft,sensor 2 platinum plates,cell constant1.0 cm-1,temp.-sensor Pt 1000,SMEK screw plug head,length120 mm,12 mm?,-30...+100°C5,730.00285113016 AquaLine 63 LFT 4-pole conductivity cell,plastic shaft,sensor platinum layer,cellconstant 1.0 cm-1,temp.-sensor NTC 30 kOhm,SMEK plughead,length 120 mm,12 mm?,-5...+80°C1,970.0014Order.No.Type No.Description Price/RMB285119705 OX 1101 Membrane covered amperometric sensor,plastic shaft,kathodeplatinum,anode silver,temperature sensor NTC 100 kW,4-poleplug head,length 120 mm,12 mm?,0...+50°C,i.e.for oxygenmeter CG 8676,170.00285119713 LF 71 T 4 pole cell,glass shaft,SMEK plug head,sensor 4 platinumrings,cell constant 1.0 cm-1,temp.-sensor Pt 1000,length 120mm,12 mm?,-30...+100°C6,680.00285119808 LF 1051 2 pole cell,glass shaft,sensor 2 platinum plates,cell constant0.5 cm-1,length 120 mm,12 mm?,-30...+100°C4,620.00285119816 LF 1101 2 pole cell,glass shaft,sensor 2 platinum plates,cell constant1.0 cm-1,length 120 mm,12 mm?,-30...+100°C3,780.00285119832 LF 1101 T 2 pole cell,glass shaft,sensor 2 platinum plates,cell constant1.0 cm-1,temp.-sensor Pt 1000,length 120 mm,12 mm?,-30...+100°C5,570.00285119849 LF 5101 2 pole cell,plastic shaft,sensor 2 platinum rings,cell constant1.0 cm-1,length 120 mm,12 mm?,0...+80°C3,020.00285119857 LF 5101 T 2 pole cell,plastic shaft,sensor 2 platinum rings,cell constant1.0 cm-1,temp.-sensor Pt 1000,length 120 mm,12 mm?,0...+80°C4,080.00285126717 LF 4TH 10-120 4 pole cell,glass shaft,sensor 4 platinum rings,secondaryplatinum electrode,temp.-sensor Pt 1000,SMEK plug head,length 120 mm,12 mm?,-5...+80°C6,990.00285126725 LF 4TH 60-120 same as LF 4TH 10-120,but with VP plug head instead of SMEKplug head7,160.00285129488 BlueLine 48 LF Stainless steel shaft,2-pole cell,1m fixed cable with 8-pole plug,sensor stainless steel,cell constant 0.1 cm-1,temp.-sensor NTC30 kOhm,length 120 mm,12mm?,-5...+80°C2,810.00285414351 LF 313T NFTC Ultrapure water cond.cell without flow through device,stainlesssteel shaft,1.5 m cable with 8 pole plug,sensor stainless steel,cell constant 0.1 cm-1,temp.-sensor NTC 30 kOhm,length 120mm,12 mm?,-5...+80°C4,890.00285414360 LF 313T Ultrapure water cond.cell including flow through device,stainless steel shaft,1.5 m cable with 8 pole plug,sensorstainless steel,cell constant 0.1 cm-1,temp.-sensor NTC 30kOhm,length 120 mm,12 mm?,-5...+80°C5,730.00285106270 LF 913 T ID Sensor recognition,5 pole cell,glass shaft,1 m cable with 8 poleplug,sensor 5 platinum rings,cell constant 0.650 cm-1,temp.-sensor NTC 30 kOhm,length 120 mm,12 mm?,-30...+135°C6,470.00Order.No.Type No.Description Price/RMB285130300 LF 313 T-ID Ultrapure water cond.cell including flow through device,stainless steel shaft,1.5 m cable with 8 pole plug andrecognition,sensor stainless steel,cell constant 0.1 cm-1,temp.-sensor NTC 30 kOhm,length 120 mm,12 mm?,-5...+80°C6,080.00285130310 LF 413 T-ID 4 pole cell,plastic shaft,1.5 m cable with 8 pole plug andrecognition,sensor material graphite,cell constant 0.475 cm-1,temp.-sensor NTC 30 kOhm,length 120 mm,15.3 mm?,-5...+80°C5,160.00285130330 LFOX 1400 ID Comb.4 pole cond.and galvanic oxygen cell,plastic shaft,3 mcable with 8 pole plug and recognition,cond.sensor materialgraphite,cell constant 0.475 cm-1,temp.-sensor NTC 30 kOhm,length 145 mm,15.3 mm?,0...+50°C14,490.00