Cerlic CBX & CBX Plus sludge blanket level (SBL) & profile sensor
Combines NIR suspended solids sensor with accurate depth measurement to provide sludge blanket profile
Analogue outputs for: sludge blanket level, fluff (unsettled sludge) level, real-time TSS concentration & real-time sensor depth
4-20mA or Profibus DP output (optional)
Completely self-cleaning
Two models:
CBX: range up to 2% TSS (depending on sludge type)
CBX Plus: range up to 5% TSS (depending on sludge type)
See it in action - YouTube demo

CBX - datasheet (PDF)
CBX - sludge blanket measurement animation (SWF)
Sludge Blanket Measurement - CBX & portable Blanket Tracker (PDF)