The conductivity principle of the conductivity meter and its application conductivity meter H3 style="WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(233,47,47); PADDING-BOTTOM: 0px PADDING-TOP: 0px; FONT: 16px/25px 'Microsoft YaHei', ??????, Arial; PADDING-LEFT: 0px; MARGIN: 15px 0px; WIDOWS: 1; LETTER-SPACING: normal; PADDING-RIGHT : 0px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">Conductivity Meter Overview and Application The conductivity meter is a precision instrument for measuring the conductivity of various liquid media.
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The conductivity of various liquids varies with the composition and concentration of the components. Thus, the composition and concentration of the solute contained in the detected liquid can be determined by measuring the conductivity of the liquid, that is, the conductivity. Usually, a conductivity meter is used to determine the components contained in the solution. Under the known premise, only the conductivity of the wire rod applicator/SPAN> a component is different, thereby measuring the composition of the solution. concentration. Conductivity meter is widely used in various fields such as scientific research, teaching, industry, agriculture, environmental protection, etc. It is also used to prepare standard solution in measurement, and the conductivity of liquid medium is measured by conductivity meter to check whether the production process of industry and agriculture is Normal, whether the waste liquid discharge meets the standard data. Whether the conductivity meter is accurate is a part of the measurement work.
Conductivity meter detection principle
A block diagram of the measurement principle of the conductivity meter, as shown in Figure 1. Tinplate
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In the measurement of conductivity, a constant amplitude voltage signal is applied between the two electrodes, and the wire bar coater flows through the electrode to a certain current. The magnitude of the current depends on the amount of ions contained in the solution, and the conductance of the measured medium. The ratio is proportional to the output voltage of the op amp.
When using the conductivity meter, turn on the power switch, set the function switch of the instrument to the calibration file, set the temperature compensation to 25 °C, and adjust the constant correction knob to display the actual constant value of the conductivity cell.
For product information of conductivity meter, please refer to: http://
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