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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The transmitter's modular design allows you to easily upgrade and add functionality at any time. — Stay flexible with the Liquiline CM442 transmitter: its modular design allows you to easily upgrade and add extra functionality at any time (digital fieldbuses, number of channels, relays, etc.).

Liquiline CM442 is a state-of-the-art transmitter for pH, ORP, conductivity, oxygen, chlorine, turbidity, sludge level, SAC, nitrate and many other parameters.

Specs at a glance

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
Ingress protection

IP66 / IP67

See all specifications

Field of application

The Liquiline CM442 transmitter allows you to connect up to 2 Memosens sensors of your choice from over 12 measurement parameters. It offers automatic sensor recognition, easy operation, and standardized spare parts with all other devices of the Liquiline platform. With its inputs, outputs, controllers, and math modules, you can even control cleaning systems or dosing pumps. Heartbeat Technology helps you find the ideal balance between measuring point availability and maintenance costs.

Liquiline CM442 is suitable for all industries and their utilities, such as:

Food & Beverages
Life Sciences
Power & Energy
Water & Wastewater
Chemicals
Marine

It features the following communication protocols and interfaces:

0/4...20 mA
HART
PROFIBUS DP
Modbus RS485/RTU
Modbus TCP
EtherNet/IP
PROFINET
Webserver

The transmitter can be extended with a module whose explosion protection approvals, such as IECEx, ATEX, and CSA, allow the connection of sensors installed in hazardous areas.

Benefits

Clever simplicity:
One controller for all parameters and applications, intuitive user interface, automatic sensor recognition, hot plug & play with pre-calibrated Memosens sensors.
High flexibility:
Universal modules for all parameters minimize spare part stock and allow for easy extension to up to 8 channels at any time.
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.

Videos

Memosens converts the measured value to a digital signal and transfers it to the transmitter without a contacting connection. This video shows how Memosens optimizes process control and maintenance.

Get this product as part of a bundle

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Free chlorine process water panel

Ready-to-use panel bundle for reliable and precise monitoring of disinfection processes
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pH glass sensor measuring point for wastewater applications

Pre-configured pH measuring station with Memosens 2.0 glass sensor for time-saving process monitoring and management
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pH measuring point including sensor with polymer housing

Ready to use pH measuring point with digital Memosens 2.0 sensor with polymer housing to manage your process in the harsh environment of wastewater
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Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

High-end products
Highly functional and convenient

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Specialized products
Designed for demanding applications

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Variable

What is FLEX?

FLEX selections	Technical excellence	Simplicity
F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
F L E X Extended selection Optimize your processes with innovative technologies	Technical excellence	Simplicity
F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable

Learn more about the FLEX selections

Memosens 2.0: Cutting-edge sensor technology reloaded

Make life easier, increase process safety and stay connected with Memosens 2.0 digital technology.
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- More information

Extended selection

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

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Predecessor

Liquisys M COM223F
Liquisys M COM253F
Stamosens CSM750
Turbidity Transmitter CUM740
Stamosens CNM750

Success stories

Monitoring water quality in fish farms

Optimal water quality in fish farming with the Endress+Hauser monitoring solution with the latest measurement technology and data management
Read the full story
TOCeq measurement in wastewater treatment

TOC measurements are often performed using analyzers that require expensive reagents. The CAS51D enables the plant operators to comply with WHO requirements and guarantees tight measurement intervals.
Read the full story
Water/steam circuit at GETEC PARK.SWISS

GETEC SWISS.PARK improves plant efficiency and decreases downtimes thanks to Endress+Hauser SWAS System
Read the full story
50% less precipitant - 100% reliability and cooperation

IDEA achieved tremendous cost savings through continous monitoring with the CA80PH Analyzer at their site in Wallonia
Read the full story
An automated system for pH measurements at AVR

AVR Waste in Botlek, Rotterdam, processes up to 1.7 million tons of residual waste per year. Discover how they optimized their pH measurement thanks to Endress+Hauser
Read the full story

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Media
Firmware for Liquiline 4-wire devices

Click here to download the latest firmware version of the Liquiline platform
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Related topics
Liquiline: cutting-edge transmitter platform

By choosing the Liquiline platform, you’re effectively choosing to spend less money on stock holding, save installation time and gain operational safety!
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About us
Liquiline production: highly automated manufacturing

A high degree of automation combined with expert craftsmanship ensures highly efficient production of the various device versions. We can tailor your device exactly to your needs.
More information
Related topics
Memosens 2.0: Cutting-edge sensor technology reloaded

Make life easier, increase process safety and stay connected with Memosens 2.0 digital technology.
More information
Related topics
Smart instrumentation through Heartbeat Technology

You want to increase plant performance and reduce costs? Our smart instrumentation portfolio with Heartbeat Technology offers in-depth device insight for more cost-efficiency and operational safety.
More information

	EN
28/08/2024
10/08/2022
04/07/2022
03/05/2022
11/05/2020

Language:	English
Version:	28/08/2024
File size:	5.9 MB
File name:	TI00444CEN_2724-00.pdf

	EN
25/09/2023
10/08/2022
04/07/2022
08/10/2021
06/05/2021

Language:	English
Version:	25/09/2023
File size:	7.8 MB
File name:	BA00444CEN_3123-00.pdf

	EN
28/08/2024
10/08/2022
04/07/2022
03/05/2022
11/05/2020

	EN
30/05/2022
28/02/2019

	EN
27/06/2013
15/09/2011

	EN
22/08/2017
22/06/2015
31/01/2014
31/12/2011

	EN
28/02/2017
11/06/2014
31/12/2011

1-/2-channel transmitter Liquiline CM442

Expandable multiparameter field device for all industries

Specs at a glance

Input

Output / communication

Ingress protection

Field of application

Benefits

Videos

Get this product as part of a bundle

Free chlorine process water panel

pH glass sensor measuring point for wastewater applications

pH measuring point including sensor with polymer housing

Memosens 2.0: Cutting-edge sensor technology reloaded

Smart instrumentation through Heartbeat Technology

Extended selection

Predecessor

Success stories

Monitoring water quality in fish farms

TOCeq measurement in wastewater treatment

Water/steam circuit at GETEC PARK.SWISS

50% less precipitant - 100% reliability and cooperation

An automated system for pH measurements at AVR

Could also interest you

Firmware for Liquiline 4-wire devices

Liquiline: cutting-edge transmitter platform

Liquiline production: highly automated manufacturing

Memosens 2.0: Cutting-edge sensor technology reloaded

Smart instrumentation through Heartbeat Technology

Measuring principle

Application

Characteristic

Design

Material

Dimension

Process temperature

Ingress protection

Input

Output / communication

Additional certifications

Measuring principle

Application

Characteristic

Design

Material

Dimension

Process temperature

Ingress protection

Input

Output / communication

Additional certifications

Measuring principle

Application

Characteristic

Design

Material

Dimension

Process temperature

Ingress protection

Input

Output / communication

Additional certifications

Measuring principle

Application

Characteristic

Design

Material

Dimension

Process temperature

Ingress protection

Input

Output / communication

Additional certifications

Measuring principle

Application

Characteristic

Design

Material

Dimension

Process temperature

1-/2-channel transmitter
Liquiline CM442