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Online turbidity meter
Turbimax CUE21

Online turbidity meter Turbimax CUE21 ©Endress+Hauser
Online turbidity meter Turbimax CUE21 ©Endress+Hauser
  • Online turbidity meter Turbimax CUE21
  • Online turbidity meter Turbimax CUE21

Compact system with sample condition adjustment for drinking and process water applications

Turbimax CUE21 is a reliable turbidity meter for continuous measurement compliant to EN ISO 7027. Operation is simple: connect the water, adjust the settings and the system runs unattended. Turbimax CUE21 provides guided calibration according to predefined standards, helping to streamline maintenance. Its automatic ultrasonic cleaning function extends service intervals offering significant savings in operational expenditure.

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  • Benefits

    • Long service intervals to save on operational costs

    • Fast and easy calibration, verification within seconds

    • Low volume of flow-through cuvette speeds up response time

    • Automatic ultrasonic cleaning function reduces maintenance effort

    • Sample condition...

  • Field of application

    Turbimax CUE21 is an online turbidity meter for:

    • Drinking and process water:
      - Process monitoring
      - Filter monitoring and filter backwash in water works
      - Water quality monitoring in water works and distribution networks

    • Utilities of all industries...

Features and specifications

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Details

  • Measuring principle

    Single beam scattered light

  • Application

    Online continuous monitoring of clean water :
    - Drinking water
    - Treated process water

  • Installation

    Compact device for bypass-installations.

  • Characteristic

    " Versions with infrared light source
    " Fast and easy calibration
    " Complete primary calibration in less than 5 minutes
    " Verification in seconds
    " Reduced calibration costs and quick response times thanks to low volume sample chamber
    " Automatic continuous ultrasonic cleaning (Autoclean)increases cleaning intervals dramatically
    " Simple modular design
    " Easy to use and service
    " Affordable thanks to modular microprocessor based technology
    " Digital high-speed connections through RS-485 with Modbus
    Optional Features:
    " Flow chamber for bubble suppression
    " Reusable calibration kit

  • Measurement range

    0 - 1000 NTU

  • Measuring principle

    Turbidity measurement using standardised 90° scattered light method acc. to ISO 7027/EN27027(Infrared Light)

  • Design

    The transmitted infrared light beam is scattered by the solid matter particles in the medium. The scattered light beams are detected by scattered light receivers which are arranged at an angle of 90° to the light source.

  • Material

    Housing: ABS
    Flow-through head: Nylon
    Sample cuvette: Borosilicate glass
    Sample cuvette seal: Silicone
    Flow-through fittings: Polypropylene
    Flow-through lock down pins: Stainless steel (AISI 304 or AISI 303)
    Inlet tube: Stainless steel (AISI 316)

  • Dimension

    347,16 x 207,65 x 196,85 mm
    (13.66 x 8.17 x7.75 inches)

  • Process temperature

    1°C - 50°C
    ( 34 - 122°F

  • Process pressure

    max. 13.78 bar / 200 psicontrolled by integral pressure regulator

  • Ingres protection

    IP66

  • Output / communication

    4-20mA, galvanic isolated
    Bi-directional RS-485, Modbus optional.

Documents / Manuals / Software

Accessories / Spare parts

Nr
Order code
Specification
    • Order code 71030103

      Electronical service module CUE21

      Light source: Infrared LED (850 nm) Measuring range: 0 - 1000 NTU Spare part turbidity measurement

    • Order code 71030105

      Field terminal box CUE21/CUE22

      Supply voltage: 100-240 VAC Spare part turbidity measurement

    • Order code 51518578

      Desiccant CUE21/CUE22

      Refill pack Accessory turbidity measurement

    • Order code 51518579

      Tubing kit CUE21/CUE22

      Accessory turbidity measurement

    • Order code 51518576

      Ultrasonic Cuvette CUE21/CUE22

      Accessory turbidity measurement

    • Order code 51518580

      Calibration kit CUE21/CUE23/CUE24

      Ready-for-use solutions: 0,02 NTU, 10 NTU and 1000 NTU Accessory turbidity measurement

    • Order code 51518575

      Flow chamber CUE21/CUE22

      for bubble suppression Accessory turbidity measurement

    • Order code 71085512

      Pressure Regulator for CUE21/22

    • Order code 71267830

      Kit CUE21/22: O-rings

    • Order code 71267825

      Kit CUE21/22: Flow Head Assembly

  • Successor

    • Liquiline CM442 is a digital transmitter for pH, ORP, conductivity, oxygen, turbidity and more.
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      Liquiline CM442

      The Liquiline CM442 transmitter is the perfect first step into the world of multiparameter measurement. Its clever simplicity offers great ease-of-use and saves you time and money every day.

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    • CUS52D is a smart inline/immersion turbidity sensor for all water production measuring points.
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      Turbimax CUS52D

      Turbimax CUS52D is a smart inline/immersion turbidity sensor for all water production measuring points. Achieve lab quality measurement without product loss!

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    • Flowfit CUA252 is a turbidity flow cell with extremely low backscattering.

      Flowfit CUA252

      Flowfit CUA252 is a flow assembly with extremely low backscattering enabling reliable measurements in the lowest turbidity range.

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    • Flowfit CUA262 is an inline turbidity flow cell for welding in your skid, pipeline or plant.

      Flowfit CUA262

      Flowfit CUA262 is an inline turbidity assembly for welding in your skid, pipeline or plant. Its stainless steel design offers hygienic measurement on a small footprint.

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Success stories

  • real-time monitoring of critical parameters in fermentation processes real-time monitoring of critical parameters in fermentation processes

    Advanced bioprocess control

    From time consuming sample analysis to real-time monitoring of critical parameters in fermentation processes thanks to complete solutions from hardware to development and analytical services.

  • Baltic Sea water used as cooling water in the power station Baltic Sea water used as cooling water in the power station

    Cooling water directly from the Baltic Sea

    With the CUS52D, power plant operator KNG benefits from reduced maintenance costs due to reliable, stable measurement even under harsh conditions in salt water.

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    Monitoring Emulsion Polymerization Reactions

    Process optimization via reaction endpoint detection and control of kinetics

  • Schematic diagram of process-control system for semi-batch polymerization Schematic diagram of process-control system for semi-batch polymerization

    Semi-batch polymerization

    Monitoring and control of a semi-batch polymerization with Raman spectroscopy

  • Industrial WWTP at Pasfrost Industrial WWTP at Pasfrost

    Compliance made easy

    The automated phosphate monitoring with Liquiline System CA80PH helps the food company Pasfrost ensure the compliance with the strict limit values for its industrial wastewater.

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