Water quality

Water quality sensors are essential devices for assessing various parameters that determine the potability and safety of water in industrial, municipal and environmental applications. Their main features are detailed below:

General Features:

• Measured Parameters:
  • pH: Indicates the acidity or alkalinity of water, usually from 0 to 14, accurately within specific ranges depending on the sensor. They use glass or solid electrodes to measure hydrogen ion activity in water.
  • Dissolved Oxygen (DO): Essential for aquatic life, in wastewater treatment plants (WWTP) its measurement is crucial to assess the health of aquatic ecosystems or in fermentations, from 0 to 20 mg/L or more, depending on the application. They use oxygen-permeable membranes and electrochemical principles to determine the oxygen concentration in water or other liquids.
  • Electrical Conductivity: It reflects the concentration of ions in the water, indicating the presence of dissolved solids, from µS/cm to mS/cm, adapting to different concentrations of dissolved solids. They measure the capacity of water to conduct electricity, which is directly related to the concentration of ions present.
  • Turbidity: Measures water clarity; high levels may indicate contamination. Detects light scattering caused by suspended particles in the water, providing a measure of water clarity.
  • Residual Chlorine: Important in water treatment systems to ensure disinfection. They use amperometric or colorimetric techniques to measure the concentration of free chlorine in the water.
  • Other Parameters: They include temperature, ORP (Oxidation-Reduction Potential), total suspended solids (TSS), among others.

In summary, water quality sensors are essential tools to ensure the supply of safe and healthy water. Their correct selection and maintenance are essential to obtain accurate and reliable measurements in various applications.