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Liquiline CM448

8-channel transmitter

Flexible multiparameter field device for all industries

Liquiline CM448 is a digital multiparameter transmitter for process monitoring and controlling in any application. The 8-channel controller saves you time and money by offering seamless system integration, simple operation and a reduced need for spare part stock. Adapt the controller exactly to your measuring task and connect 1 to 8 sensors as desired. Liquiline CM448 provides you with all the benefits of a best-in-class transmitter platform from clever simplicity to maximum process safety.


  • Clever simplicity:
    One controller for all parameters and applications, intuitive user interface, automatic sensor recognition, hot plug & play with pre-calibrated Memosens sensors.

  • Complete package:
    8 channels in one device provide the highest flexibility for every measuring task.

  • Seamless system integration:
    Unique portfolio of communication standards suits every distributed control system (DCS).

  • Simple and safe commissioning:
    Saving configuration on SD card enables fast set-up on duplicate installations.

  • Process control from a distance:
    Integrated web server that allows the operator to remotely view diagnostic data, perform configurations, or access device parameters in any web browser - even via Smartphone.

  • Higher availability, lower costs:
    Heartbeat Technology enables status-oriented maintenance and easy verification of the entire measuring point and helps to carry out optimization measures.

Field of application

The Liquiline CM448 multiparameter transmitter is suitable for all applications in non-hazardous areas, for example in the following industries and their utilities:

  • Food & Beverages

  • Life Sciences

  • Power & Energy

  • Water & Wastewater

  • Chemicals

Liquiline CM448 features all common communication protocols and interfaces, such as:

  • 0/4...20 mA

  • HART


  • Modbus TCP / Modbus RS485

  • EtherNet/IP

  • Webserver

Features and specifications


Modular 4 wire controller
Multichannel: 1 to 8 digital channels for Memosens protocol
Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
8 sensors connectable in any combination
Functionality modular extendable at any time
Plug and play for modules and sensors


Robust plastic housing
All non-ex applications


8x Memosens input, 2 to 8x current output,
Alarmrelay, 2x relay, SD card for software update and copy & paste of setup


Housing base: PC-FR
Housing seal EPDM


237 x 194 x 162 mm
9.33 x 7.64 x 6.38 inch

·Process temperature

-20 to 55 °C (0 to 130 °F)


1 to 8x Memosens digital input
2x 0/4 to 20mA Input optional
2 to 4x Digital input optional


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

·Additional certifications




  • Technical Data
  • Operation Manual