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

1-/2-channel transmitter
Liquiline CM442

Expandable multiparameter field device for all industries

CM442
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  • Measuring principle

    Ultrasonic sensor

  • Application

    Modular 4 wire controller
    Multichannel: 1/2 digital channels for Memosens protocol
    Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
    Two sensors connectable in any combination
    Functionality modular extendable at any time
    Plug and play for modules and sensors

  • Characteristic

    Robust plastic housing
    All non-ex applications

  • Design

    2x Memosens input, 2 to 4x current output, Alarmrelay
    2x relay, SD card for software update and copy & paste of setup

  • Material

    Housing base: PC-FR
    Housing seal: EPDM

  • Dimension

    237 x 194 x 162 mm
    9.33 x 7.64 x 7.38 inch

  • Process temperature

    -20 to 60 °C (0 to 140 °F)

  • Ingres protection

    IP66 / IP67

  • Input

    1 to 2x Memosens digital input
    2x 0/4 to 20mA input optional
    2x Digital input optional

  • Output / communication

    2 to 8x 0/4 to 20 mA current outputs
    Alarmrelay, 2x relay, ProfibusDP, Modbus RS485, Modbus TCP, Ethernet

  • Additional certifications

    EAC, cCSAus, MCERTS

  • Measuring principle

    Sensor ORP / Redox

  • Application

    Modular 4 wire controller
    Multichannel: 1/2 digital channels for Memosens protocol
    Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
    Two sensors connectable in any combination
    Functionality modular extendable at any time
    Plug and play for modules and sensors

  • Characteristic

    Robust plastic housing
    All non-ex applications

  • Design

    2x Memosens input, 2 to 4x current output, Alarmrelay,
    2x relay, SD card for software update and copy & paste of setup

  • Material

    Housing base: PC-FR
    Housing seal: EPDM

  • Dimension

    237 x 194 x 162 mm
    9.33 x 7.64 x 7.38 inch

  • Process temperature

    -20 to 60 °C (0 to 140 °F)

  • Ingres protection

    IP66 / IP67

  • Input

    1 to 2x Memosens digital input

  • Output / communication

    2 to 8x 0/4 to 20 mA current outputs
    Alarmrelay, 2x relay

  • Additional certifications

    EAC, cCSAus, MCERTS

  • Measuring principle

    UV photometric

  • Characteristic

    Robust plastic housing
    All non-ex applications

  • Design

    2x Memosens input, 2 to 4x current output, Alarmrelay
    2x relay, SD card for software update and copy & paste of setup

  • Process temperature

    -20 to 60 °C (0 to 140 °F)

  • Application

    Modular 4 wire controller
    Multichannel: 1/2 digital channels for Memosens protocol
    Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
    Two sensors connectable in any combination
    Functionality modular extendable at any time
    Plug and play for modules and sensors

  • Output / communication

    2 to 8x 0/4 to 20 mA current outputs
    Alarmrelay, 2x relay

  • Input

    1 to 2x Memosens digital input

  • Measuring principle

    Amperometric oxygen measurement

  • Application

    Modular 4 wire controller
    Multichannel: 1/2 digital channels for Memosens protocol
    Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
    Two sensors connectable in any combination
    Functionality modular extendable at any time
    Plug and play for modules and sensors

  • Characteristic

    Robust plastic housing
    All non-ex applications

  • Design

    2x Memosens input, 2 to 4x current output, Alarmrelay
    2x relay, SD card for software update and copy & paste of setup

  • Material

    Housing base: PC-FR
    Housing seal: EPDM

  • Dimension

    237 x 194 x 162 mm
    9.33 x 7.64 x 7.38 inch

  • Process temperature

    -20 to 60 °C (0 to 140 °F)

  • Ingres protection

    IP67

  • Input

    1 to 2x Memosens digital input

  • Output / communication

    2 to 4x 0/4...20 mA current outputs
    Alarmrelay, 2x relay

  • Additional certifications

    EAC, cCSAus, MCERTS

  • Measuring principle

    Free chlorine

  • Application

    Modular 4 wire controller
    Multichannel: 1/2 digital channels for Memosens protocol
    Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
    Two sensors connectable in any combination
    Functionality modular extendable at any time
    Plug and play for modules and sensors

  • Characteristic

    Robust plastic housing
    All non-ex applications

  • Design

    2x Memosens input, 2 to 4x current output, Alarmrelay
    2x relay, SD card for software update and copy & paste of setup

  • Material

    Housing base: PC-FR
    Housing seal: EPDM

  • Dimension

    237 x 194 x 162 mm
    9.33 x 7.64 x 7.38 inch

  • Process temperature

    -20 to 60 °C (0 to 140 °F)

  • Input

    1 to 2x Memosens digital input

  • Output / communication

    2 to 4x 0/4 to 20 mA current outputs
    Alarmrelay, 2x relay

  • Additional certifications

    EAC, cCSAus, MCERTS

  • Measuring principle

    Potentiometric

  • Application

    Modular 4 wire controller
    Multichannel: 1/2 digital channels for Memosens protocol
    Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
    Two sensors connectable in any combination
    Functionality modular extendable at any time
    Plug and play for modules and sensors

  • Characteristic

    Robust plastic housing
    All non-ex applications

  • Design

    2x Memosens input, 2 to 4x current output, Alarmrelay,
    2x relay, SD card for software update and copy & paste of setup

  • Material

    Housing base: PC-FR
    Housing seal: EPDM

  • Dimension

    237 x 194 x 162 mm
    9.33 x 7.64 x 7.38 inch

  • Process temperature

    -20 to 60 °C (0 to 140 °F)

  • Ingres protection

    IP66 / IP67

  • Input

    1 to 2x Memosens digital input
    2x 0/4 to 20mA input optional
    2x Digital input optional

  • Output / communication

    2 to 8x 0/4 to 20 mA current outputs
    Alarmrelay, 2x relay, ProfibusDP, Modbus RS485, Modbus TCP, Ethernet

  • Additional certifications

    EAC, cCSAus, MCERTS

  • Measuring principle

    Four beam alternating light

  • Application

    Modular 4 wire controller
    Multichannel: 1/2 digital channels for Memosens protocol
    Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
    Two sensors connectable in any combination
    Functionality modular extendable at any time
    Plug and play for modules and sensors

  • Characteristic

    Robust plastic housing
    All non-ex applications

  • Design

    2x Memosens input, 2 to 4x current output, Alarmrelay,
    2x relay, SD card for software update and copy & paste of setup

  • Material

    Housing base: PC-FR
    Housing seal: EPDM

  • Dimension

    237 x 194 x 162 mm
    9.33 x 7.64 x 7.38 inch

  • Process temperature

    -20 to 60 °C (0 to 140 °F)

  • Ingres protection

    IP66 / IP67

  • Input

    1 to 2x Memosens digital input
    2x 0/4 to 20mA input optional
    2x Digital input optional

  • Output / communication

    2 to 4x 0/4 to 20 mA current outputs,
    Alarmrelay, 2x relay

  • Additional certifications

    EAC, cCSAus, MCERTS

  • Measuring principle

    Potentiometric

  • Application

    Modular 4 wire controller
    Multichannel: 1/2 digital channels for Memosens protocol
    Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
    Two sensors connectable in any combination
    Functionality modular extendable at any time
    Plug and play for modules and sensors

  • Characteristic

    Robust plastic housing
    All non-ex applications

  • Design

    2x Memosens input, 2 to 4x current output, Alarmrelay
    2x relay, SD card for software update and copy & paste of setup

  • Material

    Housing base: PC-FR
    Housing seal: EPDM

  • Dimension

    237 x 194 x 162 mm
    9.33 x 7.64 x 7.38 inch

  • Process temperature

    -20 to 60 °C (0 to 140 °F)

  • Ingres protection

    IP66 / IP67

  • Input

    1 to 2x Memosens digital input

  • Output / communication

    2 to 8x 0/4 to 20 mA current outputs
    Alarmrelay, 2x relay

  • Additional certifications

    EAC, cCSAus, MCERTS

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