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E+H Liquiline CM44P Multi-Parameter Transmitter
Liquiline CM44P
The Endress+Hauser Liquiline CM44P is a versatile multi-parameter transmitter designed to combine process photometers (turbidity, absorbance, color) with digital Memosens liquid analysis sensors on a single platform. Featuring a modular, expandable architecture and seamless fieldbus communication, it provides high-precision continuous monitoring across chemical, pharmaceutical, food, and water treatment operations.
Advanced Multi-Parameter Process Analysis with Endress+Hauser Liquiline CM44P
The Endress+Hauser Liquiline CM44P is a high-performance multi-parameter transmitter engineered for complex liquid analytical monitoring in process industries. By combining process photometer optical sensors with plug-and-play Memosens digital sensors into a single controller, the CM44P provides a unified platform for monitoring absorbance, color, concentration, pH, oxidation-reduction potential (ORP), conductivity, and dissolved oxygen in biotech, pharmaceutical, food, beverage, chemical, and water treatment facilities.
Hybrid Photometer & Memosens Sensor Integration
The standout innovation of the Liquiline CM44P is its ability to bridge optical process photometers with digital Memosens sensor technology. It directly connects process photometers (such as UV/VIS, NIR, and optical turbidity sensors) to measure phase separation, yeast concentration, product purity, and protein filtration. Simultaneously, operators can connect Memosens digital analytical sensors, consolidating up to 4 analytical measuring channels into one transmitter. This hybrid capability eliminates the need for multiple single-channel controllers, significantly reducing cabinet footprint, wiring complexity, and total cost of ownership.
Key Performance Features & Technical Advantages
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Unified Multi-Parameter Platform: Connects process photometers and Memosens sensors simultaneously for centralized liquid analysis.
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Modular Expansion & Plug-and-Play: Hardware slots allow effortless field upgrades with additional I/O modules, fieldbus interfaces, or extra sensor channels.
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Intuitive Graphic Display & Operation: Large color display with clear plain-text menus, interactive calibration wizards, and status indication simplifies commissioning.
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Integrated Web Server & Remote Access: Built-in web server enables secure remote parameter configuration, diagnostic checks, and data log downloads via standard web browsers.
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HistoROM Secure Data Management: Automatic configuration backup and data logging on SD cards preserve device settings and calibration history during maintenance.
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Universal Fieldbus Connectivity: Supports industry-standard digital communication protocols including HART, PROFIBUS DP, Modbus RS485/TCP, and PROFINET for seamless DCS/PLC integration.
Optimized Process Safety & Sanitary Compliance
Built with a rugged field enclosure rated IP66/IP67 (NEMA 4X), the CM44P is designed to withstand harsh washdown environments, chemical exposure, and outdoor weather shifts. Its advanced diagnostics, compliant with NE 107 guidelines, provide predictive maintenance alerts (such as sensor cap wear or optical fouling), ensuring continuous process uptime and regulatory compliance in sanitary and industrial processes.
Target Applications
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Biotechnology & Pharmaceuticals: Protein purification monitoring, cell density tracking, filtration monitoring, and sanitary water-for-injection (WFI) loops.
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Food & Beverage Industry: Milk/phase separation detection, beer/beverage clarity monitoring, CIP rinse water quality, and yeast recovery.
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Chemical & Petrochemical Processing: Product purity control, concentration measurement, organic dye monitoring, and wastewater neutralization.
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Industrial Water & Wastewater: Turbidity monitoring, discharge compliance, aeration control, and multi-parameter raw water intake stations.
Technical Specifications
| Parameter / Feature | Specification Details |
| Transmitter Type | Multi-parameter digital transmitter for photometers and Memosens sensors |
| Photometer Channels | Connects 1 or 2 process photometer sensors (e.g., OUSAF, OUSTF series) |
| Memosens Channels | Supports up to 4 Memosens digital sensors (pH, ORP, Cond, DO, Turbidity) |
| Supply Voltage | 100 to 230 VAC (50/60 Hz) or 24 VDC / 24 VAC |
| Display Interface | High-resolution graphic color LCD with backlighting |
| Outputs / Relays | Up to 8 x 0/4–20 mA current outputs, alarm relays, limit contacts |
| Communication Protocols | HART, PROFIBUS DP, Modbus RS485, Modbus TCP, PROFINET, Ethernet/IP |
| Data Logging | SD card storage, HistoROM memory, event logbook, calibration history |
| Enclosure Materials | Polycarbonate / Stainless Steel options |
| Ingress Protection | IP66 / IP67 (NEMA 4X) |
| Operating Temperature | -20 °C to +60 °C (-4 °F to +140 °F) |
| Certifications / Approvals | ATEX, FM, CSA, IECEx, NEPSI, SIL compliance options |
Key Features & Benefits
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Photometer & Memosens Hybrid: Integrates optical photometer sensors and Memosens chemical probes into a single unit.
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Scalable Modular Design: Easily expand I/O slots and sensor channels as process requirements grow.
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Built-In Web Server: Access real-time liquid analysis data and diagnostics remotely via standard web browsers.
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HistoROM Backup System: Fast parameter transfer and secure data logging prevent data loss during field servicing.
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Comprehensive Fieldbus Options: Compatible with HART, PROFIBUS, Modbus, and PROFINET network architectures.
FAQ
Q1: What types of sensors can be connected to the Liquiline CM44P?
Answer: The CM44P connects optical process photometers (such as OUSAF11, OUSAF12, OUSAF44, OUSTF10) as well as up to 4 Memosens digital sensors (pH, ORP, conductivity, dissolved oxygen, turbidity).
Q2: Can the CM44P transmitter be expanded after installation?
Answer: Yes, its modular slot architecture allows users to insert additional module cards for extra sensor inputs, current outputs, or fieldbus communication interfaces at any time.
Q3: How does the CM44P simplify remote monitoring and data access?
Answer: The CM44P features an integrated web server that allows operators to view process values, adjust configuration parameters, and download logged data via an Ethernet connection using standard web browsers.
Q4: Is the Liquiline CM44P suitable for sanitary food and pharmaceutical applications?
Answer: Yes, when paired with hygienic photometer cells and Memosens sensors, the CM44P is fully suitable for CIP/SIP processes, sanitary phase separation, and pharmaceutical purification lines.
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