The most common errors when measuring conductivity in the laboratory

Conductivity meters are used to determine the amount of salts in the water. These instruments send an electrical current through the water and then measure the resistance to electricity. As the concentration of salts in water increases, electrical conductivity also increases. Water that does not contain salts, such as rain or tap water, has very low electrical conductivity. For this reason, conductivity meters are useful for determining whether water is contaminated with salts. Conductivity meters can be used to measure groundwater, surface water, wastewater and seawater.

In general, the larger the water sample, the more accurate the result. Conductivity meters can be portable or desktop. Portable instruments tend to be more compact and lightweight, while desktop instruments can be more accurate.

Errors and Solutions when using Conductivity Meters

Electrical conductivity is measured in the laboratory to characterize a sample of material. Although this test may seem simple, there are certain errors that are frequently made that can lead to false results. This article will describe some of the most common errors when measuring electrical conductivity, as well as ways to avoid them.

The first mistake is to use platinum or copper electrodes without making sure they are clean. This may result in the formation of non-conductive films on the surface of the electrodes, which in turn will result in an erroneous conductivity measurement. To avoid this problem, it is necessary to clean the electrodes frequently with a damp cloth or a metal bristle brush.

Another mistake that is often made, is not to take into account the temperature of the sample when measuring conductivity. Temperature can significantly affect measurement by increasing the mobility of charged particles in the liquid. For this reason, it is important to ensure that the sample is at the same temperature as the electrodes. You can do this by using a water bath with a thermostat.

Finally, another very common error is not to take account of impurities present in the sample. Impurities can significantly affect the conductivity measurement, as they can interfere with the flow of current between the electrodes. For this reason, it is important to ensure that the sample is free from impurities. You can do this using a water filter or an electrochemical solution.

Recommendations for use

Conductivity is measured in siemens per meter (S/m), and factors affecting the conductivity of a solution include ion concentration, temperature, and solution purity. Below are some recommendations for the use of conductimeters.

Use the conductivity meter in a well-ventilated place

Most conductometers use electrolytes, which can emit toxic vapors. Therefore, it is important that you use it in a well-ventilated place.

Disconnect the computer when you are not using it

Disconnect the meter from the power supply when you are not using it. This will help prevent accidents and damage to the appliance.

Do not touch the electrodes while it is operating. If you do, you may experience an electric shock.

Calibrate the equipment regularly.

To ensure accurate measurement, it is important that you calibrate your equipment regularly. Refer to the instruction manual for detailed instructions on how to calibrate.

Conductivity Meter Brand Kalstein

In this category, our users will find the appropriate accessories for all the equipment they want to use. This includes a wide selection of Conductivity Meters belonging to the YR series. They have Manual Retention Function. Automatic 8-minute shutdown after the last key pressed. Sensor type ECSCAN-C1-100K. One-line LCD monitor (21 ร— 21 mm).

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