Liquiline CM442 Multiparameter Transmitter

Name: Liquiline CM442 Multiparameter Transmitter – Manual & Quote
Brand: Endress+Hauser (E & H)

Description

Overview

The Liquiline CM442 is Endress+Hauser’s state-of-the-art 1-/2-channel multiparameter transmitter for pH, ORP, conductivity, oxygen, chlorine, turbidity, sludge level, SAC, nitrate, and many other liquid analysis parameters. Built on the modular Liquiline platform, the CM442 allows up to 2 Memosens digital sensors of choice from over 12 measurement parameters to be connected to a single robust field transmitter.

With fast quotation turnaround and technical support, Seven Star LLC proudly offers the Liquiline CM442 to water and wastewater treatment plants, food and beverage producers, and chemical processing facilities across the Sultanate of Oman, Muscat, and the wider GCC. Its universal modules minimize spare part stock while its automatic sensor recognition and hot plug-and-play capability with pre-calibrated Memosens sensors dramatically simplify commissioning and maintenance for plant technicians managing dozens of analysis points across a treatment facility.

Measurement Principle

The Liquiline CM442 operates on Memosens digital sensor technology, which converts the measured value to a digital signal at the sensor itself and transfers it to the transmitter without a contacting connection. This non-contact, digital signal transmission enables optimum galvanic isolation, eliminates contact corrosion, and results in a completely watertight measuring point, while also supporting laboratory sensor calibration for increased measured value availability.

Memosens technology further enables predictive maintenance by recording sensor data such as total operating hours, hours of operation with high or low measured values, hours at high temperatures, and sensor condition history. Depending on the sensor connected, the CM442 supports potentiometric pH/ORP measurement, conductive and inductive conductivity measurement, amperometric dissolved oxygen measurement, four-beam alternating light turbidity measurement, and ultrasonic sludge level detection, among others.

Engineering Design of the Liquiline CM442

The Liquiline CM442 features a robust plastic housing (PC-FR base, EPDM seal) rated IP66/IP67, suitable for all non-Ex applications, with overall dimensions of 237 x 194 x 162mm. Its operating process temperature range spans -20°C to +60°C, and the transmitter accepts 1 to 2 Memosens digital inputs as standard, with optional 2x 0/4-20mA current inputs and 2x digital inputs.

Output and communication options include 2 to 8 current outputs (0/4-20mA), alarm relay, up to 2 relays, and digital fieldbus support via PROFIBUS DP, Modbus RS485/RTU, Modbus TCP, EtherNet/IP, and PROFINET, plus an integrated webserver for remote diagnostics, configuration, and parameter access from any browser, including smartphones. The modular design allows extension to up to 8 measuring channels at any time, and configuration can be saved to an SD card for fast duplicate setup across multiple installations.

Key Features

The Liquiline CM442 combines Memosens digital sensor connectivity with flexible modular expansion. Core capabilities include:

Connects up to 2 Memosens digital sensors across 12+ measurement parameters.
Automatic sensor recognition with hot plug-and-play, pre-calibrated Memosens sensors.
Modular design extendable to 8 measuring channels at any time.
IP66/IP67-rated robust plastic housing for all non-Ex applications.
Integrated webserver for remote configuration and diagnostics via any browser.
HART, PROFIBUS DP, Modbus RS485/RTU/TCP, EtherNet/IP, and PROFINET connectivity.
Heartbeat Technology for status-oriented maintenance and measuring point verification.
SD card configuration backup for rapid setup on duplicate installations.

Industrial Applications

The Liquiline CM442 is well suited to municipal water and wastewater treatment, food and beverage processing, power generation, and chemical facilities across Oman requiring reliable, expandable multiparameter liquid analysis. Its universal module concept and standardized Liquiline spare parts reduce inventory costs while its Ex-extendable design allows connection of sensors installed in hazardous areas via IECEx, ATEX, and CSA-approved modules.

With engineering support in Muscat, Seven Star LLC supports water utilities, food processing plants, and industrial facilities throughout the Sohar and Salalah economic zones and the broader GCC region with the Liquiline CM442’s proven multiparameter analysis platform.

Technical Specifications

Full technical parameters for the Liquiline CM442 multiparameter transmitter:

Parameter	Specification
Model	Liquiline CM442
Channels	1 to 2 Memosens Digital Inputs (Extendable to 8)
Supported Parameters	pH, ORP, Conductivity, Oxygen, Chlorine, Turbidity, Sludge Level, SAC, Nitrate
Housing	PC-FR Plastic, EPDM Seal, IP66/IP67
Dimensions	237 x 194 x 162mm
Process Temperature	-20°C to +60°C
Outputs	2 to 8x 0/4-20mA, Alarm Relay, Up to 2 Relays
Communication	HART, PROFIBUS DP, Modbus RS485/TCP, EtherNet/IP, PROFINET
Certificates	EAC, cCSAus, MCERTS

Why Choose Seven Star LLC for Multiparameter Liquid Analysis

A Liquiline platform’s real value comes from standardizing a plant’s entire liquid-analysis fleet around one Memosens-compatible transmitter family, but that only pays off if the sensor types, channel count, and communication protocol are planned across the whole facility rather than ordered site by site. Seven Star LLC’s engineers review a customer’s full analysis-point list – pH, conductivity, dissolved oxygen, turbidity, and the rest – before quoting, so the CM442’s channel and module configuration matches actual current and near-term future needs rather than requiring a second unit later. We also help plan a shared Memosens sensor spares pool across a treatment plant’s transmitter fleet, since the sensors themselves are interchangeable across compatible Liquiline units, and we coordinate delivery and commissioning support across water and wastewater facilities in Muscat, Sohar, and the broader GCC.

Request a Quote for Liquiline CM442 Multiparameter Transmitter

To submit a formal Request for Quote (RFQ), check current availability and lead time, or arrange technical consultation for the Liquiline CM442 Multiparameter Transmitter, please contact the instrumentation division at Seven Star LLC today. Backed by genuine manufacturer documentation, our engineers are ready to assist with rapid sourcing for your liquid analysis and process monitoring projects.

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About brand

Level, flow and pressure measurement account for most of the Endress+Hauser instruments engineers ask us about, and each device is defined by the order code on its nameplate. Endress+Hauser, founded in 1953 and based in Reinach, Switzerland, builds process instrumentation for liquids, gases and bulk solids. Seven Star LLC is an independent supplier listing Endress+Hauser (E+H) flowmeters, radar and vibronic level instruments, pressure and temperature transmitters and liquid analysis equipment for plants in Oman and the GCC.

Endress+Hauser product families on this page

Level is the largest group: Micropilot free-space radar (FMR10B, FMR62 and the FMR67 for bulk solids, all 80 GHz), Levelflex guided radar (FMP50, and the FMP55 for interface measurement), the Liquiphant FTL51 vibronic point level switch and the Prosonic S FMU90 ultrasonic transmitter. Flow covers Proline Promag electromagnetic flowmeters (Promag P 300, Promag W 400) and the Prowirl F 200 vortex meter. Pressure is represented by the Cerabar PMP51B, temperature by the iTEMP TMT82 HART transmitter. For liquid analysis the listing has the Liquiline CM444 multiparameter transmitter and Memosens sensors such as the CPS11E pH electrode.

Where Endress+Hauser instruments are used

Water and wastewater plants rely on Promag W meters, radar level and Liquiline analysis. Oil and gas, chemical and power plants specify Levelflex and Micropilot on tanks and separators, Prowirl on steam and gas, and Cerabar on process lines. Food and pharmaceutical producers use hygienic versions of the same families, and cement and mining sites use the FMR67 on silos.

Ordering Endress+Hauser instruments: what we need

Send the order code and, for a replacement, the serial number from the nameplate. The extended order code is better still, because it spells out every option. Without a code we need the medium, pressure and temperature, measuring span, process connection, wetted materials, output signal or fieldbus, power supply, display and the hazardous area approval required. For flowmeters add line size and liner, for radar the tank height and nozzle size.

Frequently Asked Questions

How many sensors can the Liquiline CM442 connect?

The CM442 connects up to 2 Memosens digital sensors of your choice from over 12 measurement parameters, and its modular design can be extended to 8 channels at any time.

What is Memosens technology?

Memosens is a non-contact digital sensor technology that converts the measured value to a digital signal at the sensor, enabling optimum galvanic isolation, no contact corrosion, and a completely watertight measuring point.

What communication protocols does the CM442 support?

The CM442 supports HART, PROFIBUS DP, Modbus RS485/RTU/TCP, EtherNet/IP, and PROFINET, plus an integrated webserver for remote access.

Can the CM442 be used in hazardous areas?

Yes. The transmitter can be extended with a module carrying IECEx, ATEX, and CSA explosion protection approvals to allow connection of sensors installed in hazardous areas.

Is Seven Star LLC a trusted supplier for Endress+Hauser products?

Yes. Seven Star LLC is an experienced supplier of Endress+Hauser instrumentation in Oman and the GCC, providing genuine products with full support.

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