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Endress+Hauser Liquiline M CM42-MAA011EAF00: Robust Two-Wire Transmitter for Liquid Analysis

News October 23, 2026

Endress+Hauser Liquiline M CM42-MAA011EAF00: Robust Two-Wire Transmitter for Liquid Analysis

Endress+Hauser Liquiline M CM42-MAA011EAF00 liquid analysis transmitter

Reliable liquid analysis in demanding process environments

The Endress+Hauser Liquiline M CM42-MAA011EAF00 belongs to the CM42 family of modular two-wire transmitters for liquid analysis. The platform supports one-channel measurement of pH/ORP, conductivity or dissolved oxygen, depending on the installed sensor module and ordered configuration.

Liquiline M CM42 combines robust field installation with straightforward local operation. Memosens plug-and-play technology supports the use of laboratory-calibrated digital sensors, while the Quick Setup and navigator concept simplify commissioning, handling and maintenance. Depending on the ordered version, CM42 can communicate through 4–20 mA with HART, PROFIBUS PA or FOUNDATION Fieldbus.

About the order code CM42-MAA011EAF00
This complete code identifies a configured CM42 unit. Always use the full code when requesting a quotation or replacement. The installed input module, housing, communication option and approvals must be confirmed from the original nameplate, order documentation and current manufacturer configuration data.

Why Choose Liquiline M CM42?

Two-wire field design
Loop-powered operation simplifies field wiring and supports integration into established process-control architectures.
Flexible sensor platform
Measurement-specific versions support Memosens and selected analog sensors for pH/ORP, conductivity and oxygen tasks.
Industrial protection
IP66/67 and NEMA 4X field housing options suit demanding production environments and outdoor installation.

Supported Measurement Tasks

ParameterSensor technologyTypical objective
pH / ORPMemosens or supported analog sensorAcidity, alkalinity and redox control
ConductivityMemosens or supported analog sensorWater purity, concentration and process monitoring
Dissolved oxygenDigital Memosens oxygen sensorOxygen-content and aeration monitoring

Liquiline M CM42 Key Specifications

ParameterCM42 family specification
Transmitter typeModular two-wire, one-channel transmitter
InputOne channel for Memosens and supported analog sensors, version dependent
Measured parameterspH/ORP, conductivity or oxygen, depending on configuration
Output / communication1 or 2 × 4–20 mA; HART, PROFIBUS PA or FOUNDATION Fieldbus, version dependent
Ingress protectionIP66/67, NEMA 4X
Housing materialsRobust plastic or hygienic stainless steel, order-code dependent
Housing dimensionsPlastic: 144 × 144 × 148 mm; stainless steel: 174 × 174 × 134 mm
Explosion protectionInternational approvals available, including ATEX, IECEx, FM and CSA, depending on version

The values above describe the Liquiline M CM42 platform. Confirm the exact characteristics of CM42-MAA011EAF00 from the unit nameplate and complete manufacturer order data before purchasing or replacing an installed device.

Typical Industries and Applications

  • Chemical processing and corrosion-critical applications
  • Pharmaceutical and life-science production
  • Food and beverage process monitoring
  • Power and energy water-quality systems
  • Oil, gas, primary-material and metal-processing utilities
  • Hazardous-area measuring points when the selected approval permits

Selection and Replacement Notes

For replacement projects, match the complete CM42-MAA011EAF00 order code rather than relying only on the CM42 family name. Confirm the measured parameter, sensor technology, communication protocol, number of current outputs, housing material, cable entries and hazardous-area approval. Also verify the connected sensor model, cable length and control-system requirements.

Information Needed for a Quotation

  1. Complete order code: CM42-MAA011EAF00
  2. Photo of the transmitter nameplate and existing sensor label
  3. Measured parameter and expected measuring range
  4. Required 4–20 mA, HART, PROFIBUS PA or FOUNDATION Fieldbus interface
  5. Housing, cable-entry and hazardous-area requirements
  6. Destination country and required quantity

Contact Us for CM42-MAA011EAF00 Availability and Quotation

HONGKONG XIEYUAN TECH CO., LIMITED

Email: becky@hkxytech.com
Web: www.hkxytech.com
Mobile: +86-15972186287 (WhatsApp & WeChat)

Technical reference: Endress+Hauser Liquiline M CM42 official product information and Technical Information TI00381C. Product specifications and availability may change; confirm the complete order code before purchasing.

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