# What is EC on a PPM meter?

## What is EC on a PPM meter?

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 EC in pH meter?

Electrical conductivity (EC) is a measure of total soluble and dissolved salts in solution. EC is measured in units of electrical charge. Dissolved nutrients and non-essential ions such as sodium and chloride all contribute to the EC.

What is pH EC TDS?

pH is calibrated to pH 7.01 while EC/TDS is calibrated to either 1.41 mS/cm (1413 µS/cm) or 1500 ppm. The amplifier for the pH electrode prevents interference from humidity and electrical noise from common sources including from motors, ballasts or pumps.

### How do you convert ppm to EC?

To get an EC value, multiply the ppm reading by 2 and divide by 1000. Thus, if your EC is 1: 1 * 1000/2= 500 ppm.

### How do you calculate EC PPM?

The true ppm of a solution can only be determined by a chemical analysis, ppm cannot be measured by an EC meter. The conversion from EC to ppm is as follows: ppm500 = EC x 500. ppm700 = EC x 700.

Is TDS same as PPM?

Total dissolved solids (TDS) is measured as a volume of water with the unit milligrams per liter (mg/L), otherwise known as parts per million (ppm). Any measurement higher than 1000 ppm is an unsafe level of TDS. If the level exceeds 2000 ppm, then a filtration system may be unable to properly filter TDS.

## Does pH down Increase EC?

pH goes up, EC goes down = Plants are feeding. Potentially raise nutrient levels. pH goes down, EC goes up = Plants are putting nutrient into the water rather than taking them out. The reason this is ideal is that the plants are able to take up specific nutrients more efficiently at different pH levels.

## Is TDS and EC the same?

Total Dissolved Solids (TDS) and Electrical Conductivity (EC) are two separate parameters. TDS, in layman’s terms, is the combined total of solids dissolved in water. EC is the ability of something to conduct electricity (in this case, water’s ability to conduct electricity). That’s TDS!

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.