Liquiline CM442
Technical Data
CompareAnalyser
| Measuring Principle | UV photometric |
| Characteristic | Robust plastic housing All non-ex applications |
| Design | 2x Memosens input, 2 to 4x current output, Alarmrelay 2x relay, SD card for software update and copy & paste of setup |
| Process temperature | -20 to 60 °C (0 to 140 °F) |
| Application | Modular 4 wire controller Multichannel: 1/2 digital channels for Memosens protocol Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity Two sensors connectable in any combination Functionality modular extendable at any time Plug and play for modules and sensors |
| Output / communication | 2 to 8x 0/4 to 20 mA current outputs Alarmrelay, 2x relay |
| Input | 1 to 2x Memosens digital input |
Concentration
| Measuring Principle | Fluorescence measurement |
Conductivity
| Measuring Principle | Conductive |
| Application | Modular 4 wire controller Multichannel: 1/2 digital channels for Memosens protocol Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity Two 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 | 2x Memosens input, 2 to 4x current output, Alarmrelay 2x relay, SD card for software update and copy & paste of setup |
| Material | Housing base: PC-FR Housing seal: EPDM |
| Dimension | 237 x 194 x 162 mm 9.33 x 7.64 x 6.38 inch |
| Process temperature | -20 to 60 °C (0 to 140 °F) |
| Ingress protection | IP66 / IP67 |
| Input | 1 to 2x Memosens digital input |
| Output / communication | 2 to 8x 0/4 to 20 mA current outputs Alarmrelay, 2x relay |
| Certificates, declarations and approvals | EAC, cCSAus, MCERTS |
Disinfection
| Measuring Principle | Free chlorine |
| Application | Modular 4 wire controller Multichannel: 1/2 digital channels for Memosens protocol Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity Two 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 | 2x Memosens input, 2 to 4x current output, Alarmrelay 2x relay, SD card for software update and copy & paste of setup |
| Material | Housing base: PC-FR Housing seal: EPDM |
| Dimension | 237 x 194 x 162 mm 9.33 x 7.64 x 7.38 inch |
| Process temperature | -20 to 60 °C (0 to 140 °F) |
| Input | 1 to 2x Memosens digital input |
| Output / communication | 2 to 4x 0/4 to 20 mA current outputs Alarmrelay, 2x relay |
| Certificates, declarations and approvals | EAC, cCSAus, MCERTS |
ORP / Redox
| Measuring Principle | Sensor ORP / Redox |
| Application | Modular 4 wire controller Multichannel: 1/2 digital channels for Memosens protocol Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity Two 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 | 2x Memosens input, 2 to 4x current output, Alarmrelay, 2x relay, SD card for software update and copy & paste of setup |
| Material | Housing base: PC-FR Housing seal: EPDM |
| Dimension | 237 x 194 x 162 mm 9.33 x 7.64 x 6.38 inch |
| Process temperature | -20 to 60 °C (0 to 140 °F) |
| Ingress protection | IP66 / IP67 |
| Input | 1 to 2x Memosens digital input |
| Output / communication | 2 to 8x 0/4 to 20 mA current outputs Alarmrelay, 2x relay |
| Certificates, declarations and approvals | EAC, cCSAus, MCERTS |
Oxygen
| Measuring Principle | Amperometric oxygen measurement |
| Application | Modular 4 wire controller Multichannel: 1/2 digital channels for Memosens protocol Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity Two 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 | 2x Memosens input, 2 to 4x current output, Alarmrelay 2x relay, SD card for software update and copy & paste of setup |
| Material | Housing base: PC-FR Housing seal: EPDM |
| Dimension | 237 x 194 x 162 mm 9.33 x 7.64 x 7.38 inch |
| Process temperature | -20 to 60 °C (0 to 140 °F) |
| Ingress protection | IP67 |
| Input | 1 to 2x Memosens digital input |
| Output / communication | 2 to 4x 0/4...20 mA current outputs Alarmrelay, 2x relay |
| Certificates, declarations and approvals | EAC, cCSAus, MCERTS |
Sludge Level
| Measuring Principle | Ultrasonic sensor |
| Application | Modular 4 wire controller Multichannel: 1/2 digital channels for Memosens protocol Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity Two 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 | 2x Memosens input, 2 to 4x current output, Alarmrelay 2x relay, SD card for software update and copy & paste of setup |
| Material | Housing base: PC-FR Housing seal: EPDM |
| Dimension | 237 x 194 x 162 mm 9.33 x 7.64 x 7.38 inch |
| Process temperature | -20 to 60 °C (0 to 140 °F) |
| Ingress protection | IP66 / IP67 |
| 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 |
| Certificates, declarations and approvals | EAC, cCSAus, MCERTS |
Turbidity
| Measuring Principle | Four beam alternating light |
| Application | Modular 4 wire controller Multichannel: 1/2 digital channels for Memosens protocol Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity Two 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 | 2x Memosens input, 2 to 4x current output, Alarmrelay, 2x relay, SD card for software update and copy & paste of setup |
| Material | Housing base: PC-FR Housing seal: EPDM |
| Dimension | 237 x 194 x 162 mm 9.33 x 7.64 x 7.38 inch |
| Process temperature | -20 to 60 °C (0 to 140 °F) |
| Ingress protection | IP66 / IP67 |
| Input | 1 to 2x Memosens digital input 2x 0/4 to 20mA input optional 2x Digital input optional |
| Output / communication | 2 to 4x 0/4 to 20 mA current outputs, Alarmrelay, 2x relay |
| Certificates, declarations and approvals | EAC, cCSAus, MCERTS |
pH
| Measuring Principle | Potentiometric |
| Application | Modular 4 wire controller Multichannel: 1/2 digital channels for Memosens protocol Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity Two 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 | 2x Memosens input, 2 to 4x current output, Alarmrelay, 2x relay, SD card for software update and copy & paste of setup |
| Material | Housing base: PC-FR Housing seal: EPDM |
| Dimension | 237 x 194 x 162 mm 9.33 x 7.64 x 6.38 inch |
| Process temperature | -20 to 60 °C (0 to 140 °F) |
| Ingress protection | IP66 / IP67 |
| 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 |
| Certificates, declarations and approvals | EAC, cCSAus, MCERTS |
The CM442 is intended for non-hazardous areas. For hazardous-area applications, please select the CM42.
If no degree of protection is required, e.g. for cabinet installation, use the CM442R.
The Liquiline CM442 digital multiparameter transmitter is suitable for all process monitoring and control applications. The 1-/2-channel controller offers seamless system integration, simple operation and reduced spare parts storage, saving time and costs. The Liquiline CM442 is not only easy to operate but also ensures maximum process safety, making it a first-class transmitter platform.
Benefits:
Simple and flexible: one controller for all parameter measurements, intuitive user interface, automatic sensor recognition and precalibrated Memosens sensors for plug and play.
High adaptability: universal modules reduce spare parts inventory and allow easy expansion to an eight-channel measuring system at any time
Seamless system integration: unique combination of communication standards for all types of distributed control systems (DCS)
Simple and safe commissioning: communication with other devices via SD card for convenient setup, saving time and cost
Process control and safety: via the built-in web server, operators can access diagnostic data and parameters remotely, or access device parameters from any web browser - even from a smartphone.
Application areas:
The Liquiline CM442 multiparameter transmitter is suitable for all non-hazardous areas, including the following industries and their utilities:
Food & Beverage
Life sciences
Power & Energy
Water & Wastewater
Chemical industry
The Liquiline CM442 is compatible with all common communication protocols and interfaces, such as:
0/4...20 mA
HART
PROFIBUS DP
Modbus TCP / Modbus RS485
EtherNet/IP
Web server
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This product has passed the Chinese environmental certification, a mandatory certificate for wastewater treatment plant projects:
Measuring principle video
Source: public information from the Endress+Hauser website
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Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · Multi-parameter Application Case
Project Background
Municipal Wastewater Treatment customers at the Wastewater Treatment Plant stage have long faced the challenge of insufficient accuracy in effluent quality monitoring and instruments prone to contamination causing data drift, affecting compliance discharge, placing higher demands on the stability and measurement accuracy of Multi-parameter.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Multi-parameter for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Municipal Wastewater Treatment conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Food & Beverage — Food Production Line · Multi-parameter Application Case
Project Background
Food & Beverage customers at the Food Production Line stage have long faced the challenge of high hygienic measurement requirements, with inline instruments needing to withstand CIP/SIP cleaning while maintaining stable accuracy, placing higher demands on the stability and measurement accuracy of Multi-parameter.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Multi-parameter for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Food & Beverage conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Chemical & Pharmaceutical — Reactors and Storage Tanks · Multi-parameter Application Case
Project Background
Chemical & Pharmaceutical customers at the Reactors and Storage Tanks stage have long faced the challenge of highly corrosive media and complex conditions, requiring corrosion-resistant and explosion-proof instruments, placing higher demands on the stability and measurement accuracy of Multi-parameter.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Multi-parameter for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Chemical & Pharmaceutical conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Power & Energy — Power Plant Boiler and Turbine · Multi-parameter Application Case
Project Background
Power & Energy customers at the Power Plant Boiler and Turbine stage have long faced the challenge of unstable measurement under high temperature and pressure, with high maintenance and downtime costs, placing higher demands on the stability and measurement accuracy of Multi-parameter.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Multi-parameter for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Power & Energy conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
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Endress+Hauser