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倍加福P+F电极式液位测量仪

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倍加福P+F电极式液位测量仪

  • 所属分类:P+F

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  • 发布日期:2017/04/24
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详细介绍

测量原理

导电液体的很普遍。一旦液体达到固定高度的电极时,液体使两个电极(或者容器与电极之间)之间的DC自由交变电流电路闭合,电流的突变产生一个开关信号。 可以很好的检测酸、碱和水溶液。非抗腐蚀材质的探头不能检测强腐蚀性液体。易燃液位如燃料、汽油和溶剂是非导电的,不适用于该测量原理。

工作模式

两个电极被安装在受检测的导电液体表面,当液位上升到一定位置两根电极接触到液体,导通的继电器通过两根电极和液体产生一个开关信号。 液体最小导电率必须为10μS/cm。这些情况下除了纯溶剂外,必须是典型的导电液体,如水、酸和碱。 如果需要多个开关点,就用相关的多杆电极。为避免液体中的电气影响,被测电流用无直流信号的交流电,这由电极开关放大器或变换器产生。 分界面液位检测用这种方法测量既经济又方便,特别是用于原油和汽油分界面,水和非导电液体分界面。

Choose your product




产品
HR-021**1Hydrostatic Pressure SwitchLimit value detection for liquids as maximum detection, High switching capacity, Used in open or pressureless vessels
HR-6**1**1-rod electrodeSensor for conductive limit value detection, Electrodes Ø6 mm (0.24 inch) for length more than 1.5 m (5 foot), 1-rod electrode with electrode socket or terminal box, Different rod and thread materials
HR-6*5***Multiple-rod ElectrodeSensor for conductive limit value detection, 1 to 5 electrode rods, Electrodes Ø4 mm (0.16 inch) or Ø6 mm (0.24 inch), Different rod and thread materials
HR-6*52**/W0114/*2-rod electrodeSensor for conductive limit value detection, Approval as overfill protection acc. to WHG, Electrodes Ø4 mm (0.16 inch) or Ø6 mm (0.24 inch), Different rod and thread materials, Electrical output acc. to NAMUR by integrated converter
HR-6*526*/W01142-rod electrodeSensor for conductive limit value detection, Approvals for Zone 0 and as overspill protection acc. to VbF, Electrodes Ø4 mm (0.16 inch) or Ø6 mm (0.24 inch), Electrical output acc. to NAMUR by integrated converter
HR-690121Suspension electrodeSensor for conductive limit value detection, Simple and robust installation, Application in deep wells and drainage shafts
LKL-P*Conductive Level Limit SwitchLevel limit switch for conductive liquids, Detect up to five level limits with one probe, Flexible instrumentation, No moving parts in the tank, No calibration: quick and low-cost start up, Option between rod or rope version for optimum adaptation to the application, Two-point control and additional maximum and minimum detection, Approval as overfill protection and leak detection system acc. to WHG


相关标签:P+F,倍加福,液位开关,电极式液位测量仪价格,电极式液位测量仪批发

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