Integrated controller with up to 2 measuring channels and digital Memosens technology
Application
- Digital fieldbuses (Modbus TCP or Modbus RS485) and integrated web server
- Monitoring and optimization of the cleaning capacity of municipal and industrial wastewater treatment plants
- Monitoring of the wastewater treatment plant outlet for documentation purposes
- Monitoring and optimization of activated sludge basins
Your benefits
- Easy upgrade to measuring station by connecting with up to four Memosens sensors
- Automatic calibration and cleaning
- User-configurable measuring, cleaning and calibration intervals
- Optional cooling module for longer reagent life time
- Low maintenance costs thanks to long reagent life
- User-definable measuring ranges
- Modular design for easily extensible functionality
- Digital communication for remote access
- Two-channel device available
Colorimetric measuring principle
After application-specific sample preparation, some of the permeate is pumped into the mixing/
reaction chamber. The specific color reagent is metered exactly in a defined mixture ratio. The
chemical reaction causes the characteristic change in the color of the sample. The multispectral
photometer measures the level of absorption by the sample or the stain solution at defined
wavelengths. The analyzed wavelengths, and their relationships to one another, are parameter-
specific.
Based on proportionality the amount of light absorption is a direct indicator of the concentration of
the parameter under analysis in the sample. To compensate for any interference influences resulting
from turbidity and fouling, as well as from the deterioration and aging of the LEDs, a reference
measurement is performed before the actual measurement. This reference signal is subtracted from
the measuring signal. The temperature in the photometer is kept constant to ensure a reproducible
reaction that takes place with a short period of time.