Process Turbidity Sensor Model LAS


The process Turbidity Sensor model LAS measures Particles and other haze creating substances in liquids.

Configurable for the measurement of:

EBC / TEF/ FTU /ppm /mg/l / g/l / % TS/ AU/ CU/ OD / …

Measuring principle:

The inline turbidity sensor model LAS uses the principle of near-infrared light absorption (NIR) to detect turbidity in liquids. A beam of light shines through the product to be measured. A detector is positioned opposite of the light source and detects the NIR component emanating from the light source. The detected NIR radiation changes depending on the respective turbidity.

Low turbidity = high intensity
High turbidity = low intensity

The measuring transmitter evaluates the intensity signals and calculates the resulting measuring values.

Inline Absorption turbidimeter model LAS.
Process Turbidity Sensor Model LAS
Turbidimetry Transmitter Model C1
Masuring Transmitter Model C1

NIR absorption measurement method:
– The measurement of absorption will be in the near infrared spectrum.
– IR absorption allows precise measurements and compensates for influences caused by changes in color.
Low maintenance / long service life:
– Less maintenance and longer service life due to optimized measuring cell with Sapphire measuring windows.
– The stainless steel melted Metaglas windows are extreme easy to clean and offer additional coating protection.
Calibration / maintenance interval typically 12 months (depending on application):
– As a rule, the calibration should be checked every 12 months.
– Inbuild calibration filters allows for calibration within a few minutes.
– However, the maintenance interval depends on the measuring range and application.
Measuring lamp, gas-filled (λ 380 – 1100nm), service life approx. 1 year:
– The measuring lamp is filled with gas and has a service life of approx. 1 year.
Measuring cell material typically stainless steel 1.4404 / 316L
– The TH Variline measuring cell is made of stainless steel and offers hygienic design (3A).
Sealing material: FKM (optionally FFKM, EPDM, silicone, …):
– The seals are made of FKM.
– Seals made of other materials such as EPDM, FFKM or silicone are optionally available.
Process connections: DIN flanges, ANSI flanges, NPT, …:
– Various connection options for different process requirements.