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Inline turbidity sensor

Inline turbidity sensor
OUSTF10 ©Endress+Hauser

Turbidity and suspended solids measurement by light scattering and absorbance

The OUSTF10 scattered light turbidity sensor is used for measurement of suspended solids, emulsions and immiscible fluids in process liquids. It provides you with all desired information from product purity to filter blocking. As a result, you gain more control over the quality of your products and processes. OUSTF10 is ready for all kinds of environments, such as very high temperatures, hazardous areas (ATEX, FM) and hygienic processes (CIP/SIP).

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  • Benefits

    • Accurate and highly sensitive purity monitoring for better product quality

    • Low-maintenance sensor with long service life and stable operation

    • Optional long pass NIR filter to minimize color related measurement errors

    • Reliable detection of heat exchanger leaks

    • Suitable for cleaning-in-place (CIP)...

  • Field of application

    The OUSTF10 sensor measures turbidity for:

    • Quality control / Purity monitoring

    • Filter monitoring

    • Condensate monitoring

    • Turbidity in breweries

    • Heat exchanger leakage detection

    • Turbidity in brine

    With its international explosion-protection...

Features and specifications



  • Measuring principle

    NIR absorbance

  • Application

    Turbidity and suspended solids measurement for filter control and quality measurement

  • Measurement range

    0 to 200 FTU
    0 to 200 ppm DE

  • Material

    Sensor housing: 316L

  • Process temperature

    0 to 90 °C (32 to 194 °F) continuous
    Max. 130 °C (266 °F) for 2 hours

  • Process pressure

    Max. 100 bar (1450 psi)
    (depending on flow through assembly)

  • Ex certification

    ATEX II 2G Ex db IIC T5 Gb
    FM Cl.1, Div. 1, Group B, C, D

  • Ingres protection

    IP 65 (NEMA 4)

  • Additional certifications


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