What is EC in pH meter?
Meters or sensors that measure pH and electrical conductivity (EC) are used to check the quality of irrigation water, calibrate fertilizer and acid injectors, and measure nutrient availability for plant uptake.
How do you measure pH and EC?
How Are pH and Electrical Conductivity Measured? A meter and probe or litmus paper can be used to measure the pH of a sample. The more accurate, but expensive, of these methods is the meter and probe. pH meters are calibrated using special solutions, or buffers with a known pH value.
What is EC meter used for?
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.
Is EC the same as PPM?
Summary. ppm stands for parts per million & is the most common domestically used unit when measuring TDS. EC stands for electrical conductivity, which is a measurement of the ability of something to conduct electricity. In horticulture, EC is the most accurate way to measure nutrient concentration in solution.
What is a good EC for soil?
Optimal EC levels in the soil therefore range from 110-570 milliSiemens per meter (mS/m). Too low EC levels indicate low available nutrients, and too high EC levels indicate an excess of nutrients.
How do you calculate EC?
To calculate the EC value, multiply the ppm value by 2 and divide by 1000. Water quality variables such as conductivity (EC) and total dissolved solids (TDS) can be used to calculate salt concentration.
Do EC meters need to be calibrated?
The pH and electrical conductivity (EC) measurements are only as good as the calibration of your meter. Calibrate your meters now to prevent mistakes in your production planning. Photo 1. The Hanna Instruments HI 9313-6 meter that I will be using for demonstration purposes.
How do you store EC meters?
EC electrode care: An EC electrode, unlike most pH electrodes, can be stored dry and usually does not require a storage solution. It will need periodic cleaning depending on how often it is used.
What is a good EC reading?
EC is a measure of the salts in your system—that is, the level of nutrients in your system. EC should be kept between 1.2 and 2.0.