Endress+Hauser Liquiline CM442 / CM444 Multi-Channel Transmitters
High-Performance 1/2/4-Channel Water Analysis Controllers for Industrial Applications
The Endress+Hauser Liquiline CM442 and CM444 are compact, modular multiparameter transmitters designed for precise and continuous monitoring of water quality in industrial, environmental, and municipal processes. Built on the Liquiline platform, both transmitters use Memosens digital sensor technology, providing exceptional measurement reliability, simple maintenance, and strong integration with automation systems.
Product Overview
Liquiline CM442 – 1/2-Channel Transmitter
- Supports 1 or 2 Memosens sensors
- Ideal for applications requiring compact, space-saving monitoring
- Perfect for basic water analysis or single-point measurements
Liquiline CM444 – 4-Channel Transmitter
- Supports up to 4 Memosens sensors
- Designed for more complex systems needing multiple water quality parameters
- Excellent for wastewater plants, industrial processing, and multi-parameter monitoring stations
Both transmitters feature modular channel expansion, intelligent diagnostics, and wide industrial communication compatibility.
Key Features
1. Flexible Multiparameter Measurement
Compatible with all Memosens digital sensors, including:
- pH / ORP
- Conductivity
- Dissolved Oxygen
- Turbidity
- Chlorine (free/total)
- Nitrate, SAC / UV
- Temperature
- And more
2. Modular Channel Configuration
- CM442: 1–2 channels
- CM444: Up to 4 channels
- Add or replace input modules at any time
3. Memosens Digital Technology
- Contactless, corrosion-free signal transmission
- Plug-and-play sensor replacement
- Sensors store calibration data internally
- Maximizes uptime and measurement stability
4. Advanced Diagnostics & Predictive Maintenance
- Drift monitoring and calibration alerts
- Sensor health display
- Automatic sensor recognition
- Ensures continuous, accurate operation
5. Full Industrial Communication Support
Both CM442 and CM444 support:
- Modbus TCP
- PROFIBUS
- PROFINET
- EtherNet/IP
- HART
- Seamless SCADA/DCS integration
- Remote configuration & monitoring
6. Rugged, Industrial-Grade Design
- Weatherproof housing (IP66/IP67)
- Suitable for indoor or outdoor use
- Wall, panel, or pipe mounting configurations
Technical Specifications
| Specification |
CM442 |
CM444 |
| Channels |
1–2 Memosens sensors |
Up to 4 Memosens sensors |
| Power Supply |
100–230 VAC / 24 VDC |
100–230 VAC / 24 VDC |
| Communication |
Modbus TCP, EtherNet/IP, PROFIBUS, HART |
Same |
| Display |
High-resolution backlit screen |
Same |
| Protection Class |
IP66 / IP67 |
IP66 / IP67 |
| Operating Temp |
–20°C to +60°C |
–20°C to +60°C |
| Data Logging |
Integrated event & measurement memory |
Same |
Applications
- Industrial wastewater treatment
- Drinking water treatment and distribution
- Desalination and seawater processing
- Power plant cooling water monitoring
- Chemical and petrochemical processing
- Food & beverage production water
- Pharmaceutical and ultrapure water systems
Why Choose the Liquiline CM442/CM444?
- Highly flexible multiparameter measurement
- Reliable digital Memosens technology
- Simple installation, fast commissioning
- Low maintenance and long-term stability
- Strong industrial communication options
- Global brand reliability from Endress+Hauser
Contact Us for Pricing & Technical Support
Email: edwardzhao@gbsxj.com
Phone: +86-15000725058
We supply Endress+Hauser transmitters worldwide with fast delivery and professional technical support.
