The sensor S461/S is used for the optical measurement of suspended solids
in industrial water and process up to 30 g/l.
The probe uses the method of measuring light absorption.
Applications
• Measure of Suspended solids in wastewater
• Measure of Sludge and Staff concentration, industrial water
Features and benefits
• Reliable concentration measurement using optical measuring process
• Infrared light pulsing beams scattering method
• Stainless Steel sensor body (PVC optional)
• No mechanically moving parts
• Measured value pre-processing in sensor resulting in low signal
transmission sensitivity
• Immediate installation and easy maintenance
Measurement of sludge concentration with the method of light
absorption
Turbidity is a decrease of transparency of the water, due to the presence of
suspended solids - that consist of very fine particles - unable to settle in a
reasonably short time. The particles in suspension determine an absorption of
the electromagnetic radiation depending on the number and size of the
particles themselves. Comparing the absorption of the test sample with
values derived from a well known calibration curve, it’s possible to determine
the value of the turbidity.

Parameter Name	Parameter Value
Measured physical value	suspended solids