المنتج
E+H Liquiline CM444 Digital Multi-Channel Transmitter
Liquiline CM444
The Endress+Hauser Liquiline CM444 is a versatile 4-channel digital field controller designed for simultaneous multi-parameter liquid analysis including pH/ORP, conductivity, dissolved oxygen, turbidity, and nitrate. Equipped with Memosens digital plug-and-play technology and modular expansion options, it delivers reliable process monitoring across water, chemical, power, and food production applications.
Advanced Multi-Channel Liquid Analysis for Industrial Processes
The Endress+Hauser Liquiline CM444 is a robust, 4-channel digital field transmitter designed to handle demanding liquid analysis applications in non-hazardous environments. Engineered for maximum operational uptime and flexibility, the CM444 acts as a centralized process controller capable of monitoring up to four Memosens digital sensors simultaneously. Whether measuring pH, ORP, conductive or inductive conductivity, dissolved oxygen, turbidity, or nitrate, the CM444 delivers continuous, highly accurate process data required for efficient process control and quality assurance.
Cutting-Edge Memosens Digital Sensor Integration
A core advantage of the Liquiline CM444 transmitter lies in its native support for Memosens digital sensor technology. Non-contact inductive signal transmission eliminates sensor failure caused by ambient moisture, corrosion, and dirt build-up. Because calibration data and process history are stored directly within the smart sensor head, maintenance teams can calibrate sensors off-site in laboratory conditions. Upon connecting a sensor to the CM444, the transmitter automatically recognizes the sensor parameters and loads calibration metrics, reducing field commissioning time to seconds.
Modular Flexibility and Future-Proof Expansion
Designed with a modular architecture, the Liquiline CM444 transmitter adapts effortlessly to expanding plant requirements. Plant operators can configure the device with up to 8 current outputs (0/4 to 20 mA), alarm relays, and digital inputs, or integrate specialized software functions such as cleaning control, dosing pumps, and mathematical modules. The rugged plastic housing (PC-FR) carries an IP66/IP67 ingress protection rating, protecting internal electronics from harsh weather, high humidity, and aggressive washdown procedures.
Seamless Automation System Integration and Connectivity
The CM444 transmitter bridges field measurement with plant-wide automation systems by offering extensive fieldbus and industrial Ethernet interfaces, including HART, PROFIBUS DP, Modbus RS485, Modbus TCP, and EtherNet/IP. Built-in web server functionality enables remote process monitoring, device configuration, and diagnostic evaluation from any standard web browser or mobile device. Additionally, integrated Heartbeat Technology provides continuous verification and self-diagnostics without process interruption, optimizing maintenance cycles and reducing total cost of ownership.
Application
-
Water & Wastewater Treatment: Continuous monitoring of drinking water quality, effluent discharge, aeration basin oxygen, and sludge levels.
-
Power & Energy Plants: Boiler feedwater conductivity monitoring and condensate purity analysis.
-
Food & Beverage Production: Quality monitoring of liquid ingredients, CIP/SIP washdown control, and wastewater management.
-
Chemical Utility Processes: Non-Ex chemical process monitoring, neutralization tanks, and cooling water quality management.
Technical Parameters
-
Device Type: Modular 4-wire multiparameter digital controller / transmitter
-
Digital Sensor Inputs: 1 to 4x Memosens digital input channels
-
Optional Inputs: 2x 0/4 to 20 mA analog inputs, 2 to 4x digital inputs
-
Outputs / Communication: 2 to 8x 0/4 to 20 mA current outputs, alarm relay, up to 4x relays, HART, PROFIBUS DP, Modbus RS485, Modbus TCP, EtherNet/IP
-
Compatible Parameters: pH, ORP, Conductive Conductivity, Inductive Conductivity, Dissolved Oxygen, Turbidity, Nitrate, SAC, Sludge Level
-
Housing Material & Protection: PC-FR (Polycarbonate Flame Retardant), IP66 / IP67 rating (NEMA 4X)
-
Ambient Operating Temperature: -20 °C to +55 °C (-4 °F to +130 °F)
-
Power Supply Options: 100 to 230 V AC (50/60 Hz) or 24 V DC / AC
FAQ
-
Q: How many sensors can be connected to the Liquiline CM444 transmitter? A: Up to 4 Memosens digital sensors can be connected simultaneously in any combination of measured parameters.
-
Q: Can different analytical parameters (e.g., pH and dissolved oxygen) be measured together? A: Yes, the CM444 is a true multiparameter transmitter that supports simultaneous connection of different Memosens sensors across its channels.
-
Q: Is the Liquiline CM444 expandable after installation? A: Yes, its modular design allows for easy addition of extra I/O modules, relays, or digital communication interfaces whenever plant requirements change.
-
Q: Do you supply original Endress+Hauser units with factory documentation? A: Yes, as an international instrument distributor, we supply authentic Endress+Hauser Liquiline CM444 units complete with original technical documentation and manufacturer certificates.
مستندات المنتج
فتح المستندات الفنية.
أدخل بريد العمل ورقم واتساب مرة واحدة للوصول إلى جميع المستندات.