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Liquiline CM44P is a state-of-the-art transmitter that allows you to combine process photometers with sensors for many other parameters such as pH, ORP, conductivity, and oxygen.

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The transmitter is also available without field housing for DIN-Rail installation in cabinets.

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Liquiline CM44P with OUSAF44 UV process photometer and Memosens sensors for pH, conductivity mounted in OUA260 hygienic flow assemblies.

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Liquiline transmitters with Heartbeat Technology offer status-oriented maintenance and easy verification of the measuring point and help you to carry out optimization measures.
Specs at a glance
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Ingres protection
Cabinet device: IP20 shock protection
External display: IP66
Field device: IP 66/67
Field of application
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.
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.
Videos
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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
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High-end products
- Highly functional and convenient
Technical excellence
Simplicity

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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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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 |
Predecessor
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Measuring principle
UV absorbance
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Application
Transmitter for process photometer and Memosens sensors
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Characteristic
Robust plastic housing
All non-ex applications -
Measurement range
Photometer:
OUSAF12, OUSAF21, OUSAF22, OUSAF44, OUSAF46:
0 to 2.5 AU
Max. 50 OD (depending on the optical path length)
OUSAF11:
0 to 3 AU
0 to 6 OD (depending on the optical path length)
OUSTF10:
0 to 200 FTU
0 to 200 ppm DE
OUSBT66:
0 to 4 AU
0 to 8 OD (depending on the optical path length) -
Design
1 or 2 process photometer, 0 to 4 Memosens Input
2 to 8x current output, alarmrelay, 4x relay, SD card for software update and copy & paste of setup -
Material
Housing base and DIN rail housing: PC-FR
Housing seal and display seal: EPDM -
Ingres protection
Cabinet device: IP20 shock protection
External display: IP66
Field device: IP 66/67
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- Optional add-ons
Individual configuration
Often bought together
Accessories
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