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Multichannel transmitter Liquiline CM44P

Multiparameter device for process photometers and Memosens sensors

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Multichannel transmitter Liquiline CM44P

Multiparameter device for process photometers and Memosens sensors

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Benefits

  • Intelligent design: One controller for all parameters including process photometers
  • Cost-saving and comfortable set-up of measuring points: Combine up to two process photometers and four Memosens sensors for a perfect fit to your application
  • Easy to operate and calibrate thanks to intuitive user interface and menu guidance
  • Process control and safety: 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.
  • Available as DIN-rail version for applications with limited mounting space - perfect for system integrators and skids
  • Heartbeat Technology enables status-oriented maintenance and easy verification of the entire measuring point and helps to carry out optimization measures.

Integrated technologies

Memosens technology
Heartbeat Technology
Liquiline: cutting-edge transmitter platform
FLEXible answers to individual needs
Current product

Multichannel transmitter Liquiline CM44P

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  • High-end products
  • Highly functional and convenient

What is FLEX?

FLEX selections
Technical excellence
Simplicity
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Fundamental selection Meet your basic measurement needs
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Lean selection Handle your core processes easily
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Extended selection Optimize your processes with innovative technologies
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Xpert selection Master your most challenging applications
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Manufacturer's warranty

Engineered for confidence

Our instruments are designed for long‑lasting performance, precise measurement, and dependable operation in demanding industrial environments. Each product includes a standard manufacturer’s warranty that reflects our commitment to quality and to the trust you place in our solutions.

Should a warranty case occur, the device will be assessed and the applicable remedy will be provided in line with the warranty terms – helping ensure a reliable and efficient resolution and supporting continued operation of your measurement point.

Request for extended warranty

If you require extended warranty coverage, simply contact your local Endress+Hauser representative. Our experts will advise you on the available options to match your application and risk profile, helping you protect your investment, reduce unexpected repair costs, and ensure reliable long‑term operation beyond the manufacturer's warranty period.

Learn more

Warranty terms apply

The manufacturer's warranty and extended warranty are subject to specific conditions. For full details, please refer to the locally applicable General Terms and Conditions (GTC), which can be found on the respective country page of our website.

Services by your side

Right‑first‑time commissioning, worldwide

Endress+Hauser’s qualified service engineers ensure your measurement devices are commissioned right the first time, delivering application‑aligned accuracy, regulatory compliance, and operational confidence from startup onwards, anywhere in the world.

Remote support you can trust wherever you operate

With Endress+Hauser Smart Support, you benefit from faster issue resolution, higher uptime, reliable global expertise across the entire product lifecycle – and lasting peace of mind.

Committed to long‑term, sustainable performance

With deep field expertise, harmonized processes, and continuous monitoring, we accompany you with comprehensive service offerings – from initial start‑up through instrumentation maintenance to process optimization – as a true lifetime partner delivering improved outcomes.

For additional information, please contact your local Endress+Hauser representative.

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Easy access to technical documentation

Select and download all technical documentation such as operating manuals, calibration certificates, approvals and CAD drawings conveniently bundled as a complete documentation package for your entire order or quote.

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My Endress+Hauser is your 24/7 connection to Endress+Hauser – in the office, in the field or on the go. It brings together transaction management, documentation and software downloads, knowledge base access, customer support, engineering tools and cloud‑based IIoT services helping you work easier, faster and more efficiently.

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Technology
Memosens technology

Memosens 2.0: Cutting-edge sensor technology reloaded

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

Technology
Heartbeat Technology

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.

Technology

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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Have questions about this product?

Product information

Liquiline CM44P - Multichannel transmitter for process photometers and Memosens sensors
Transmitter photometers+Memosens sensors
Specifications
Measuring / Application task Concentration
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Description

Liquiline CM44P allows you to connect 2 process photometers with up to 4 Memosens sensors of your choice. It facilitates the setup of complete measuring points for monitoring processes such as chromatography, fermentation, phase separation and filtration. Moreover, 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.

Field of application

Liquiline CM44P is especially suited for applications in the following industries:

  • Life Sciences
  • Food & Beverages
  • Chemicals
  • Oil & Gas

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
  • Intelligent design: One controller for all parameters including process photometers
  • Cost-saving and comfortable set-up of measuring points: Combine up to two process photometers and four Memosens sensors for a perfect fit to your application
  • Easy to operate and calibrate thanks to intuitive user interface and menu guidance
  • Process control and safety: 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.
  • Available as DIN-rail version for applications with limited mounting space - perfect for system integrators and skids
  • Heartbeat Technology enables status-oriented maintenance and easy verification of the entire measuring point and helps to carry out optimization measures.
Predecessors
Downloads
Most downloaded
Technical Information (TI)
TI Liquiline CM44P Universal four-wire multichannel transmitter for process photometers and Memosens sensors
English version - 11/2025
Download
Operating Instruction (BA)
BA Liquiline CM44P Universal four-wire multichannel controller for process photometers and
Memosens sensors
English version - 09/2023
Download
Operating Instruction (BA)
Memosens Sensor inputs with Memosens protocol
English version - 05/2022
Download
The CAD Drawings will be available after the configuration.
All downloads
175 Downloads
Technical Information (TI)
Most downloaded
TI Liquiline CM44P Universal four-wire multichannel transmitter for process photometers and Memosens sensors
English version - 11/2025
Download
Operating Instruction (BA)
Most downloaded
BA Liquiline CM44P Universal four-wire multichannel controller for process photometers and
Memosens sensors
English version - 09/2023
Download
Operating Instruction (BA)
Memosens Sensor inputs with Memosens protocol
English version - 05/2022
Download
Operating Instruction (BA)
BA Liquiline CM44P Universal four-wire multichannel controller for process spectrometers
and Memosens sensors
English version - 09/2023
Download
Short Instruction (KA)
KA Liquiline CM44P Universal four-wire multichannel transmitter for process spectrometers and Memosens sensors
English version - 11/2025
Download
Short Instruction (KA)
KA Liquiline CM44P Universal four-wire multichannel transmitter for process photometers and Memosens sensors
English version - 11/2025
Download
Installation Instructions (EA)
SD card kit 32 GB, industrial flash drive
English version - 03/2021
Download
Installation Instructions (EA)
Kit CM44x/CSXxx/CA80XX Module 485MB or 485DP
For Ethernet configuration, PROFIBUS DP, Modbus RS485
English version - 11/2022
Download
Installation Instructions (EA)
Einbauanleitung/ Installation Instructions Kit Module/Modules Für erweiterte Funktionalität
For extended functionality
English version - 07/2014
Download
Installation Instructions (EA)
Kit CM44xR External display
English version - 02/2023
Download
Installation Instructions (EA)
Kit CM44x / CSXxx / CA80xx Kit Module 485/ETH Installation Instructions For Ethernet configuration, PROFIBUS, Modbus
English version - 08/2017
Download
Installation Instructions (EA)
Liquiline modules collection instructions Liquiline modules collection instructions
English version - 06/2025
Download
Installation Instructions (EA)
Kit 2DS Ex-i module for CM44x(R) / CM44P Replacement / repair of the 2DS Ex-i module for CM44x(R) / CM44P
English version - 07/2022
Download
Installation Instructions (EA)
Kits CM444R/448R Rail-mount power supply Kits CM444R/448R Rail-mount power supply (Hutschienen-Netzteil)
Valid for 71222277, 71222279 and 71224563
English version - 09/2025
Download
Installation Instructions (EA)
SD card kit Industrial flash drive, 1 GB
With firmware, no. 71127100
Without firmware, no. 71110815
English version - 03/2021
Download
Ex Safety Instruction (XA)
XA Liquiline CM442, CM444, CM448, CM442R, CM444R, CM448R, CM44P Universal four-wire multichannel controller
CSA CL I, DIV 2, GP A-D T4A
English version - 01/2026
Download
Ex Safety Instruction (XA)
XA Liquiline CM442, CM444, CM448, CM442R, CM444R, CM448R, CM44P Universal four-wire multichannel controller
ATEX II (1) G [Ex ia Ga] IIC
IECEx [Ex ia Ga] IIC
English version - 09/2023
Download
Ex Safety Instruction (XA)
XA Liquiline CM442, CM444, CM448, CM442R, CM444R, CM448R, CM44P Universal four-wire multichannel controller
EAC Ex [Ex ia Ga] IIC
English version - 09/2025
Download
Ex Safety Instruction (XA)
Liquiline CM442, CM444, CM448, CM442R, CM444R, CM448R, CM44P UK Ex II (1) G [Ex ia Ga] IIC
Safety instructions for electrical apparatus in explosion-hazardous
areas
English version - 03/2022
Download
Special Documentation (SD)
Liquiline CM44x, Liquiline CM44xR, Liquiline CM44P, Liquiline System CA80xx, Liquistation CSFxx Data transmission via PROFINET
English version - 06/2022
Download
Special Documentation (SD)
Special Documentation Liquiline 4-wire Platform Modbus Guideline
English version - 05/2022
Download
Special Documentation (SD)
Special Documentation Liquiline 4-wire Platform EtherNet/IP guideline
English version - 06/2022
Download
Special Documentation (SD)
Activation codes kit For extended functionality
English version - 05/2020
Download
Special Documentation (SD)
CM44x/R/P / CSFxx / CA80xx PROFIBUS Guideline
English version - 06/2022
Download

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Spare parts and accessories

Electronic
Electronic

Kit base module BASE-E

Electronic
Electronic
Order code 71141336
Drawing number 7
further parts
further parts

Kit: base module BASE2-E

further parts
further parts
Order code 71431302
Electronic
Electronic

Kit CM44P: module PEM (w/o adjustment)

Electronic
Electronic
Order code 71293900
Drawing number 14
Electronic
Electronic

Kit CM44P: module PEM (w. adjustment)

Electronic
Electronic
Order code 71313181
Drawing number 14
Spare parts and accessories
Liquiline CM44P - Multichannel transmitter for process photometers and Memosens sensors
Transmitter photometers+Memosens sensors

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Liquiline CM44P - Multichannel transmitter for process photometers and Memosens sensors
Transmitter photometers+Memosens sensors
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Add your product to the cart and request a quote. Whether it is un-configured, partially configured, or fully configured, our experts will contact you to complete the configuration and provide your quote.

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Spare parts and accessories

Electronic
Electronic

Kit base module BASE-E

Electronic
Electronic
Order code 71141336
Drawing number 7
further parts
further parts

Kit: base module BASE2-E

further parts
further parts
Order code 71431302
Electronic
Electronic

Kit CM44P: module PEM (w/o adjustment)

Electronic
Electronic
Order code 71293900
Drawing number 14
Electronic
Electronic

Kit CM44P: module PEM (w. adjustment)

Electronic
Electronic
Order code 71313181
Drawing number 14
Spare parts and accessories

Selection of compatible products

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