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Ammonium analyzer
Liquiline System CA80AM

Liquiline System CA80AM - High-precision process analyzer for ammonium measurement ©Endress+Hauser
Liquiline System CA80AM ammonium analyzer with cooling for extended reagent lifetime ©Endress+Hauser
Liquiline System CA80AM ammonium analyzer - Cost-efficient version without cooling ©Endress+Hauser
Sample collector with level detection for the monitoring of sample transport ©Endress+Hauser

Ammonium concentration in a liquid can be measured using the colorimetric measuring principle. This video shows what it is about and how this measuring principle works.

Colorimetric system for online monitoring of water and wastewater treatment

Liquiline System CA80AM offers high-precision ammonium measurement in all critical control points. As member of the Liquiline platform, it enables plug & play and easy upgrade to a measuring station - minimizing the installation effort. Automatic calibration and cleaning as well as the low consumption of reagents save you operating and maintenance costs. Advanced diagnostics with remote access ensure process safety and support you in providing process documentation to the authorities.

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  • Benefits

    • Fast commissioning and plug & play thanks to Memosens technology and user-friendly operation

    • Easy upgrade of functionality - even to a complete measuring station - simply by adding modules and connecting Memosens sensors

    • Advanced diagnostics with remote...

  • Field of application

    Liquiline System CA80AM monitors and controls:

    • Inlets of wastewater treatment plants

    • Outlets of wastewater treatment plants for documentation purposes

    • Aeration basins

    • Water treatment

    • Cleaning capacity of municipal and industrial wastewater plants

Features and specifications



  • Measuring principle


  • Characteristic

    Analyzer for ammonium in aqueous solutions

  • Measuring method

    Comply with standard colorimetric measuring principle - indophenol blue method following ISO 7150-1, DIN 38406-5 and GB 7481-87

  • Size

    793 x 530 x 417 mm
    31.22 x 20.87 x 16.42 inch
    Stand housing:
    1693 x 530 x 417 mm
    66.65 x 20.87 x 16.42 inch

  • Design

    Open design / cabinet:
    Plastic ASA-PC
    Stand housing:
    Plastic ASA-PC, steel coated

  • Process temperature

    4 to 40 °C (39 to 104 °F)

  • Ambient temperature

    5 to 40 °C (41 to 104 °F)

    Outdoor version: - 20 to 40 °C (-4 to 104 °F)

  • Process pressure


  • Sample flow rate

    Min. 5 ml/min (0.17 fl.oz/min)

  • Consistency of the sample

    Low solids content
    Turbitity < 50 NTU, aqueous, homogenized

  • Specials

    Easy upgrade to measuring station with up to four digital Memosens sensors
    Automatic calibration and cleaning
    User-configurable measuring, cleaning and calibration intervals
    Optional cooling module for longer reagent life time
    Automatic calibration and cleaning
    Optional 2 channel version
    User-definable measuring ranges
    Flexibale functionality and modular expandable
    Digital communication for remote access

  • Application

    Monitoring and optimization of the cleaning capacity of municipal and industrial wastewater treatment plants
    Monitoring of the wastewater treatment plant outlet for documentation purposes
    Monitoring and optimization of activated sludge basins

  • Power supply

    100 to 120 VAC / 200 to 240 VAC ± 10%
    24 VDC ± 10%
    50 ± 1 or 60 ± 1.2 Hz

  • Output

    2x 0/4 to 20 mA
    Optional: Webserver, Modbus, Ethernet/IP, Profibus DP

  • Input

    1 or 2 measuring channels
    Optinonal 1 to 4 digital sensor inputs for sensors with Memosens protocol

  • Measurement range

    0.05 to 20 mg/l NH4-N
    0.5 to 50 mg/l NH4-N
    1 to 100 mg/l NH4-N

    0.5 to 50 mg/l with dilution function to maximum 10 to 1000 mg/l NH4-N

  • Consumables

    Reagents and standard solutions CY80AM
    Cleaner CY800
    Maintenance kit CAV800

Documents / Manuals / Software