Measuring Conductivity Of Water With A Multimeter

An electrical conductivity meter ec meter measures the electrical conductivity in a solution it has multiple applications in research and engineering with common usage in hydroponics aquaculture aquaponics and freshwater systems to monitor the amount of nutrients salts or impurities in the water.

Measuring conductivity of water with a multimeter. Conductivity measurements are used routinely in many industrial and environmental applications as a fast inexpensive and reliable way of measuring the ionic content in a solution. Learn to measuring the conductivity of water as a test of its purity. A conductivity meter sometimes called electrical conductivity meter water conductivity meter or ec meter measures the ability of a solution or liquid to conduct an electrical current. When water conducts electricity it is made possible by water impurities such as metals.

Conductivity is related to the resistance to current flow of the water. By touching the negative and positive leads of a multimeter that is on in the resistance setting allows you to measure the conductivity of water a test of its purity. The standard unit of measure for conductivity is microsiemens per centimeter. At best you can estimate the conductivity of water using a multimeter.

Plug the red and black leads of the multimeter into its positive and negative ports respectively. For example the measurement of product. Large batteries will create large am. Likewise fresh or nearly pure water should have a lower tds constant closer to 0 47 0 50 36.

In general pure solutions such as distilled water have low conductivity while saline or nutrient rich solutions such as seawater or fertilizers have. Water conductivity test equipment can be used to build up an understanding of the typical range of conductivity for a particular water body. However when measuring mixed water or saline water with a conductivity value greater than 5000 us cm the tds constant should be higher. Around 0 735 and 0 8 respectively 20.

There are two methods.