Measurement target
Identify suspended solids, mixed-liquor suspended solids or concentrated sludge.
Optical solids measurement depends on the target, concentration range, particle distribution, sludge homogeneity, bubbles, velocity, mounting and cleaning—not only a maximum mg/L value.
Identify suspended solids, mixed-liquor suspended solids or concentrated sludge.
Provide minimum, normal, peak and alarm mg/L values.
Confirm process point, particle distribution, bubbles, settling and sludge homogeneity.
Provide pressure, velocity, material, cleaning, cable, 4–20 mA, relays and RS485 requirements.


Use the target, minimum-to-peak range, homogeneity, process point and mounting. PSS-800 covers wider and higher documented ranges; PSS-600 uses a slimmer sensor.
Optical readings are affected by particle distribution, bubbles and sludge homogeneity, so the real process condition must be confirmed with the range.
We will respond with a recommended configuration, supporting documentation and quotation.