- F
- L
- E
- X
Liquiline CM444R is a state-of-the-art transmitter for pH, ORP, conductivity, oxygen, chlorine, turbidity, sludge level, SAC, nitrate and many other parameters.
- F
- L
- E
- X
An optional display enables configuration, maintenance and operation of the measuring point on-site.
- F
- L
- E
- X
Liquiline transmitters with Heartbeat Technology offer status-oriented maintenance and easy verification of the measuring point and help you to carry out optimization measures.
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
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 & Waste
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.Drive connectivity: Liquiline Edge Module CYY7 transfers process data to Netilion, independently of the fieldbus. This allows remote overview and the use of IIoT services. It’s available in new products or as upgrade to installed Liquiline platforms.
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.
Extended selection
-
High-end products
- Highly functional and convenient
Technical excellence
Simplicity
-
Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
-
Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
| FLEX selections | Technical excellence | Simplicity |
|---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
|
Lean selection Handle your core processes easily |
Technical excellence
|
Simplicity
|
Extended selection Optimize your processes with innovative technologies |
Technical excellence
|
Simplicity
|
Xpert selection Master your most challenging applications |
Technical excellence
|
Simplicity
Variable |
-
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 -
Certificates, declarations and approvals
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 -
Certificates, declarations and approvals
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 -
Certificates, declarations and approvals
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 -
Certificates, declarations and approvals
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 -
Certificates, declarations and approvals
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 -
Certificates, declarations and approvals
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 -
Certificates, declarations and approvals
EAC, cCSAus
-
-
Technical Information (TI)
TI Liquiline CM442R/CM444R/CM448R
English version - 11/2025
New version available in English
Cabinet transmitter with a maximum of eight measuring channels based on digital Memosens technology
EN 17/11/202512/03/2025Language:
English
Version:
17/11/2025
File size:
6.7 MB
File name:
TI01112CEN_1425-00.pdf
-
-
-
Technical Information (TI)
TI Liquiline CM442R/CM444R/CM448R
-
Technical Information (TI)
English version - 11/2025New version available in EnglishCabinet transmitter with a maximum of eight measuring channels based on digital Memosens technology
EN 17/11/202512/03/2025Language:
English
Version:
17/11/2025
File size:
6.7 MB
File name:
TI01112CEN_1425-00.pdf
-
-
-
Operating Instruction (BA)
Memosens
-
Operating Instruction (BA)
Chinese version - 05/2022New version available in EnglishMemosens数字式传感器输入
EN 30/05/2022Language:
Chinese
Version:
30/05/2022
File size:
4.2 MB
File name:
BA01245CZH_0822-00.pdf
-
-
-
Operating Instruction (BA)
BA Liquiline CM442R/CM444R/CM448R
-
Operating Instruction (BA)
English version - 03/2025New version available in EnglishUniversal four-wire multichannel controller
Cabinet installationEN 19/03/2025Language:
English
Version:
19/03/2025
File size:
8.7 MB
File name:
BA01225CEN_1825-00.pdf
-
-
-
Short Instruction (KA)
KA Liquiline CM442R/CM444R/CM448R
-
Short Instruction (KA)
English version - 11/2025New version available in EnglishUniversal four-wire multichannel transmitter for cabinet installation
EN 07/11/2025Language:
English
Version:
07/11/2025
File size:
3.9 MB
File name:
KA01160CEN_1225-00.pdf
-
-
-
Installation Instructions (EA)
Einbauanleitung/ Installation Instructions Kit Module/Modules
-
Installation Instructions (EA)
English version - 07/2014New version available in EnglishFür erweiterte Funktionalität
For extended functionalityEN 07/07/2014Language:
English
Version:
07/07/2014
File size:
2.4 MB
File name:
EA00008CA2_0314.pdf
-
-
-
Installation Instructions (EA)
Kit CM44x / CSXxx / CA80xx Kit Module 485/ETH Installation Instructions
-
Installation Instructions (EA)
English version - 08/2017New version available in EnglishFor Ethernet configuration, PROFIBUS, Modbus
EN 22/08/2017Language:
English
Version:
22/08/2017
File size:
2.1 MB
File name:
EA00009CA2_0417.pdf
-
-
-
Installation Instructions (EA)
Kits CM444R/448R Rail-mount power supply
-
Installation Instructions (EA)
English version - 09/2025New version available in EnglishKits CM444R/448R Rail-mount power supply (Hutschienen-Netzteil)
Valid for 71222277, 71222279 and 71224563EN 26/09/2025Language:
English
Version:
26/09/2025
File size:
470.9 KB
File name:
71226626 Anleitung Kits CM44xR Netzteil 2025-09.pdf
-
-
-
Installation Instructions (EA)
Liquiline modules collection instructions
-
Installation Instructions (EA)
English version - 06/2025New version available in EnglishLiquiline modules collection instructions
EN 30/06/2025Language:
English
Version:
30/06/2025
File size:
1 MB
File name:
71104852_cm44xsammel.pdf
-
-
-
Installation Instructions (EA)
Kit SD-Karte
-
Installation Instructions (EA)
German version - 03/2021New version available in EnglishIndustrial flash drive, 1 GB
Mit Firmware, Nr. 71127100
Ohne Firmware, Nr. 71110815Language:
German
Version:
23/03/2021
File size:
508.8 KB
File name:
EA00011CDE_0621.pdf
-
-
-
Ex Safety Instruction (XA)
XA Liquiline CM442, CM444, CM448, CM442R, CM444R, CM448R, CM44P
-
Ex Safety Instruction (XA)
English version - 01/2026New version available in EnglishUniversal four-wire multichannel controller
CSA CL I, DIV 2, GP A-D T4AEN 14/01/202606/03/202518/02/202505/05/2023Language:
English
Version:
14/01/2026
File size:
8.9 MB
File name:
XA02420CEN_0426-00.pdf
-
Choose from our suggested options
-
-- selected coding-- selected label99.999,00<%label%>
-
Looking for more options? Please use the individual configurator to continue
-
-- selected coding-- selected label99.999,00<%feature%>
-
<%label%>99.999,00
-
Looking for more options? Please use the individual configurator to continue
-
Process Connection
-
<%label%>99.999,00
-
<%label%>99.999,00
-
-
<%feature%><%coding%><%label%>
- CAD drawings CAD drawings
- CAD drawings
-
Prices per piece
-
<%range%><%price%>
-
- Optional add-ons
Individual configuration
Often bought together
Accessories
Related products