Liquiline CM444R is a compact DIN-Rail transmitter for pH, ORP, conductivity, oxygen, turbidity ...

4-channel transmitter
Liquiline CM444R

Expandable multiparameter DIN-rail and cabinet device for all industries

CM444R

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An optional display enables configuration, maintenance and operation of the measuring point on-site.

Liquiline CM444R 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 4x Memosens digital input
2x 0/4 to 20mA Input optional
2 to 4x Digital input optional
Output / communication

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

Transmitter: IP20
Optional Display: IP66

See all specifications

Field of application

Liquiline CM444R allows you to connect up to 4 Memosens sensors of your choice from over 12 measurement parameters. With its compact design, it fits into any cabinet and can be expanded at any time with inputs, outputs, controllers, math modules, and sensor channels. The transmitter belongs to the Liquiline platform with standardized system integration, operation, and spare parts. Heartbeat Technology helps you find the ideal balance between measurement point availability and maintenance costs.

Liquiline CM444R 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

Saves space, saves money:
Small footprint, 4 channels in one device, expandable at any time, saves space in cabinets – perfect for skids.
High-speed installation:
No cut-out in cabinet door, one-click DIN-rail mounting, minimized wiring.
Simple and safe commissioning:
Saving configuration on SD card enables fast set-up on duplicate installations.
Easy to operate and service:
Intuitive user interface, hot plug & play with pre-calibrated Memosens sensors, universal components fit all parameters.
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.

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
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

Extended selection

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Simple products
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

Technical excellence

Simplicity

What is FLEX?

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

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

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Success stories

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
Automated pH measuring point in wastewater

The Dow plant in Stade relies on Endress+Hauser solutions for pH monitoring in the treatment of production wastewater.
Read the full story
Pure high quality beer and clean wastewater

Discover how Heineken meets all regulations to protect the brazilian environment with the Viomax CAS51D digital nitrate or SAC sensor from Endress+Hauser.
Read the full story
Conductivity system optimises production of biosurfactants

Holiferm produces sustainable biosurfactants using a patented gravity separation fermentation process. The company was seeking a way to automate the measurement of the critical phase separation step.
Read the full story

Could also interest you

Media
Firmware for Liquiline 4-wire devices

Click here to download the latest firmware version of the Liquiline platform
More information
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!
More information
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

Measuring principle

Potentiometric
Application

Modular 4 wire controller
Multichannel: 1 to 4 digital channels for Memosens protocol
Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
4 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

2 to 4x Memosens input, 2 to 8x current output,
Alarmrelay, 4x relay, SD card for software update and copy & paste of setup
Material

DIN rail housing: PC-FR
Display seal: EPDM
Dimension

220 x 100 x 97 mm
8.66 x 3.94 x 3.82 inch
Process temperature

0 to 55 °C (32 to 130 °F)
Ingress protection

Transmitter: IP20
Optional Display: IP66
Input

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

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

EAC, cCSAus

Measuring principle

Sensor ORP / Redox
Application

Modular 4 wire controller
Multichannel: 1 to 4 digital channels for Memosens protocol
Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
4 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

2 to 4x Memosens input, 2 to 8x current output
Alarmrelay, 4x relay, SD card for software update and copy & paste of setup
Material

DIN rail housing: PC-FR
Display seal: EPDM
Dimension

220 x 100 x 97 mm
8.66 x 3.94 x 3.82 inch
Process temperature

0 to 55 °C (32 to 130 °F)
Ingress protection

Transmitter: IP20
Optional Display: IP66
Input

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

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

EAC, cCSAus

Measuring principle

Conductive
Application

Modular 4 wire controller
Multichannel: 1 to 4 digital channels for Memosens protocol
Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
4 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

2 to 4x Memosens input, 2 to 8x current output
Alarmrelay, 4x relay, SD card for software update and copy & paste of setup
Material

DIN rail housing: PC-FR
Display seal: EPDM
Dimension

220 x 100 x 97 mm
8.66 x 3.94 x 3.82 inch
Process temperature

0 to 55 °C (32 to 130 °F)
Ingress protection

Transmitter: IP20
Optional Display: IP66
Input

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

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

EAC, cCSAus

Measuring principle

Amperometric oxygen measurement
Application

Modular 4 wire controller
Multichannel: 1 to 4 digital channels for Memosens protocol
Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
4 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

2 to 4x Memosens input, 2 to 8x current output,
Alarmrelay, 4x relay, SD card for software update and copy & paste of setup
Material

DIN rail housing: PC-FR
Display seal: EPDM
Dimension

220 x 100 x 97 mm
8.66 x 3.94 x 3.82 inch
Process temperature

0 to 55 °C (32 to 130 °F)
Input

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

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

EAC, cCSAus

Measuring principle

Total chlorine
Application

Modular 4 wire controller
Multichannel: 1 to 4 digital channels for Memosens protocol
Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
4 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

2 to 4x Memosens input, 2 to 8x current output,
Alarmrelay, 4x relay, SD card for software update and copy & paste of setup
Material

DIN rail housing: PC-FR
Display seal: EPDM
Dimension

220 x 100 x 97 mm
8.66 x 3.94 x 3.82 inch
Process temperature

0 to 55 °C (32 to 130 °F)
Input

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

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

EAC, cCSAus

Measuring principle

Single beam scattered light
Application

Modular 4 wire controller
Multichannel: 1 to 4 digital channels for Memosens protocol
Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
4 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

2 to 4x Memosens input, 2 to 8x current output,
Alarmrelay, 4x relay, SD card for software update and copy & paste of setup
Material

DIN rail housing: PC-FR
Display seal: EPDM
Dimension

220 x 100 x 97 mm
8.66 x 3.94 x 3.82 inch
Process temperature

0 to 55 °C (32 to 130 °F)
Ingress protection

Transmitter: IP20
Optional Display: IP66
Input

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

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

EAC, cCSAus

Measuring principle

Ultrasonic sensor
Application

Modular 4 wire controller
Multichannel: 1 to 4 digital channels for Memosens protocol
Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
4 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

2 to 4x Memosens input, 2 to 8x current output,
Alarmrelay, 4x relay, SD card for software update and copy & paste of setup
Material

DIN rail housing: PC-FR
Display seal: EPDM
Dimension

220 x 100 x 97 mm
8.66 x 3.94 x 3.82 inch
Process temperature

0 to 55 °C (32 to 130 °F)
Ingress protection

Transmitter: IP20
Optional Display: IP66
Input

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

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

EAC, cCSAus

	EN
28/08/2024
10/08/2022
03/05/2022
11/05/2020
28/02/2019

Language:	English
Version:	28/08/2024
File size:	6.7 MB
File name:	TI01112CEN_1224-00.pdf

	EN
25/09/2023
10/08/2022
08/10/2021
20/04/2021
27/01/2020

Language:	English
Version:	25/09/2023
File size:	8.7 MB
File name:	BA01225CEN_1723-00.pdf

Language:	English
Version:	30/05/2022
File size:	3.3 MB
File name:	BA01245CEN_0822-00.pdf

	EN
30/05/2022
28/02/2019

	EN
27/06/2013

	EN
28/11/2022

	EN
24/02/2023
27/06/2013

4-channel transmitter Liquiline CM444R

Expandable multiparameter DIN-rail and cabinet device for all industries

Specs at a glance

Input

Output / communication

Ingress protection

Field of application

Benefits

Videos

Memosens 2.0: Cutting-edge sensor technology reloaded

Smart instrumentation through Heartbeat Technology

Extended selection

Success stories

50% less precipitant - 100% reliability and cooperation

An automated system for pH measurements at AVR

Automated pH measuring point in wastewater

Pure high quality beer and clean wastewater

Conductivity system optimises production of biosurfactants

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

Input

Output / communication

Additional certifications

Measuring principle

Application

Characteristic

Design

Material

Dimension

Process temperature

Input

Output / communication

Additional certifications

Measuring principle

Application

Characteristic

4-channel transmitter
Liquiline CM444R