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1-channel transmitter
Liquiline M CM42

1-channel transmitter Liquiline M CM42 ©Endress+Hauser
1-channel transmitter Liquiline M CM42 ©Endress+Hauser
1-channel transmitter Liquiline M CM42 ©Endress+Hauser

Memosens converts the measured value to a digital signal and transfers it to the transmitter without a contacting connection. This video shows how Memosens optimizes process control and maintenance.

  • 1-channel transmitter Liquiline M CM42
  • 1-channel transmitter Liquiline M CM42
  • 1-channel transmitter Liquiline M CM42

Two-wire field device for hazardous and non-hazardous area use in chemicals, life sciences and food

Liquiline M CM42 is the robust transmitter for pH/ORP, conductivity or oxygen measurement in all process applications. It is the best choice for demanding environments be it hygienic applications, hazardous areas or functional safety areas. Liquiline’s intuitive operating concept simplifies commissioning, handling, and maintenance saving you time every day. Easy switching of parameters and seamless system integration give you the flexibility to adapt it exactly to your measuring task.

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Meet your basic measurement needs

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Handle your core processes easily

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  • Specs at a glance

    • Input

      One or two channel transmitter (with one reference connection)

    • Output / communication

      1/2 x 4 to 20 mA, HART, Profibus PA, FF
      Additional second output possible, also later

    • Ingres protection

      IP66, IP67 or NEMA 4X

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  • Optional add-ons
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Individual configuration

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Additional components

  • Product picture active barrier RN221N Product picture active barrier RN221N

    RN221N
    Active barrier with optional HART® diagnosis

    Active barrier with power supply for safe separation of 4...20 mA current circuits

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  • Product picture passive barrier RB223 Product picture passive barrier RB223

    RB223
    Loop powered passive barrier

    One or two-channel barrier for the safe separation of 4...20 mA standard signal circuits

    Loading price
    Prices temporarily unavailable
    from CHF 803.-
  • Product picture transmitter power supply RNS221 Product picture transmitter power supply RNS221

    RNS221
    Transmitter supply for DIN rail

    Power supply for two 2 wire sensors or transmitters

    Loading price
    Prices temporarily unavailable
    from CHF 803.-
  • Product picture field meter RIA46 with control unit Product picture field meter RIA46 with control unit
    • F
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    • E
    • X

    RIA46
    Field meter with control unit

    Multifunctional field meter for monitoring and indication of analog measured values

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    from CHF 803.-
  • Product picture limit switch RTA421 Product picture limit switch RTA421

    RTA421
    Limit switch

    Contactor with loop power supply for monitoring current or voltage signals

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    from CHF 803.-

  • Benefits

    • Simple commissioning with quick setup and navigator

    • The Memosens technology allows plug & play with pre-calibrated Memosens sensors

    • Less storage thanks to modular design

    • Predictive maintenance system detects when a sensor has to be cleaned, calibrated or...

  • Field of application

    The Liquiline CM42 transmitter is suitable for all process applications, for example in these industries and their utilities:

    • Chemicals

    • Food & Beverages

    • Life Sciences

    • Power & Energy

    • Oil & Gas

    • Primaries & Metal

    Liquiline CM42 features the following...

Features and specifications

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Details

  • Measuring principle

    Potentiometric

  • Application

    Chemical processes, pharmaceuticals industry, foodstuff technology, applications in hazardous areas

  • Characteristic

    Liquiline M CM42 is a modular two-wire transmitter for all areas of process engineering

  • Measuring principle

    Connection of analog or digital Memosens sensors

  • Design

    Depending on the ordered version, Liquiline M CM42 has one or two analog current outputs or it can be connected to field busses as per FOUNDATION Fieldbus, PROFIBUS PA and HART protocol
    Liquiline is developed acc. to the international safety standard IEC 61508

  • Material

    Plastic or stainless steel housing with EPDM sealings

  • Dimension

    Plastic housing:
    144 x 144 x 148 mm
    5.67 x 5.67 x 5.83 inch
    Stainless Steel:

    174 x 174 x 134 mm
    6.85 x 6.85 x 5.28 inch

  • Temperature sensor

    Applicable:
    Pt100, Pt1000, NTC 30K

  • Ex certification

    ATEX, FM, CSA, NEPSI, TIIS, EAS

  • Ingres protection

    IP66, IP67 or NEMA 4X

  • Input

    One or two channel transmitter (with one reference connection)

  • Output / communication

    1/2 x 4 to 20 mA, HART, Profibus PA, FF
    Additional second output possible, also later

  • Measuring principle

    Sensor ORP / Redox

  • Application

    Chemical processes, pharmaceuticals industry, foodstuff technology, applications in hazardous areas

  • Characteristic

    Liquiline M CM42 is a modular two-wire transmitter for all areas of process engineering

  • Measuring principle

    Connection of analog or digital Memosens sensors

  • Design

    Depending on the ordered version, Liquiline M CM42 has one or two analog current outputs or it can be connected to field busses as per FOUNDATION Fieldbus, PROFIBUS PA and HART protocol
    Liquiline is developed acc. to the international safety standard IEC 61508

  • Material

    Plastic or stainless steel housing with EPDM sealings

  • Dimension

    Plastic housing:
    144 x 144 x 148 mm
    5.67 x 5.67 x 5.83 inch
    Stainless Steel:
    174 x 174 x 134 mm
    6.85 x 6.85 x 5.28 inch

  • Temperature sensor

    Applicable:
    Pt100, Pt1000, NTC 30K

  • Ex certification

    ATEX, FM, CSA, NEPSI, TIIS

  • Ingres protection

    IP66, IP67 or NEMA 4X

  • Input

    One or two channel transmitter (with one reference connection)

  • Output / communication

    1/2 x 4 to 20 mA, HART, Profibus, FF
    Additional second output possible, also later

  • Measuring principle

    Amperometric oxygen measurement

  • Application

    Chemical processes, pharmaceuticals industry, foodstuff technology, applications in hazardous areas

  • Characteristic

    Liquiline M CM42 is a modular two-wire transmitter for all areas of process engineering

  • Measuring principle

    Connection of analog or digital Memosens sensors

  • Design

    Depending on the ordered version, Liquiline M CM42 has one or two analog current outputs or it can be connected to field busses as per FOUNDATION Fieldbus, PROFIBUS PA and HART protocol
    Liquiline is developed acc. to the international safety standard IEC 61508

  • Material

    Plastic or stainless steel housing with EPDM sealings

  • Dimension

    Plastic housing:
    144 x 144 x 148 mm
    5.67 x 5.67 x 5.83 inch
    Stainless Steel:
    174 x 174 x 134 mm
    6.85 x 6.85 x 5.28 inch

  • Ex certification

    ATEX, FM, CSA, NEPSI, TIIS

  • Ingres protection

    IP66 and IP67

  • Input

    One or two channel transmitter (with one reference connection)

  • Output / communication

    1/2 x 4 to 20 mA, HART, Profibus PA, FF
    Additional second output possible, also later

  • Measuring principle

    Potentiometric

  • Application

    Chemical processes, pharmaceuticals industry, foodstuff technology, applications in hazardous areas

  • Characteristic

    Liquiline M CM42 is a modular two-wire transmitter for all areas of process engineering

  • Measuring principle

    Connection of analog or digital Memosens sensors

  • Design

    Depending on the ordered version, Liquiline M CM42 has one or two analog current outputs or it can be connected to field busses as per FOUNDATION Fieldbus, PROFIBUS PA and HART protocol
    Liquiline is developed acc. to the international safety standard IEC 61508

  • Material

    Plastic or stainless steel housing with EPDM sealings

  • Dimension

    Plastic housing:
    144 x 144 x 148 mm
    5.67 x 5.67 x 5.83 inch
    Stainless Steel:
    174 x 174 x 134 mm
    6.85 x 6.85 x 5.28 inch

  • Temperature sensor

    Applicable:
    Pt100, Pt1000

  • Ex certification

    ATEX, FM, CSA, NEPSI, TIIS

  • Ingres protection

    IP66 and IP67

  • Input

    One or two channel transmitter (with one reference connection)

  • Output / communication

    1/2 x 4 to 20 mA, HART, Profibus PA, FF
    Additional second output possible, also later

Documents / Manuals / Software

Accessories / Spare parts

Nr
Order code
Specification
  • 4,23
  • 25
    • Nr 25 Order code 51517463

      Kit CM42: moulded gasket for encl.lid SS

      (SS = stainless steel version)

  • 4,7
  • 8,9
  • 10,11
  • 12,13
  • 8,9
  • 10,11
  • 12,13
    • Nr 12,13 Order code 51518007

      Kit CM42 repair: digital input/Memosens

      Kit CM42: input module FSDG1, digital for Memosens, non-Ex version.

  • 3
  • 21
  • 9
  • 11
  • 13
  • 3,9,11,13,
  • 5
  • 24
  • 5
  • 24
  • 4,7
  • 4
  • 14
    • Nr 14 Order code 51517504

      Kit CM42: Cable glands M20 PC/SS

      Kit can be used for devices with poly carbonate(PC)housing and for devices with stainless steel (SS) housing.

    • Nr 14 Order code 51517505

      Kit CM42: Cable glands NPT1/2" PC/SS

      Kit can be used for devices with poly carbonate (PC) housing and for devices with stainless steel (SS) housing

    • Nr 14 Order code 51517506

      Kit CM42: Cable glands G 1/2" PC

      Use this kit only for devices with poly carbonate (PC) housing and not for devices with stainless steel(SS)housing.

    • Nr 14 Order code 71426655

      Kit CM42: Cable glands G 1/2" SS

      Use this kit only for devices with stainless steel (SS) housing and not for devices with poly carbonate(PC) housing.

    • Order code 71001357

      Kit CM42: mounting plate

    • Order code 51518286

      Pipe mounting kit CM42 stainl.steel

      Application: CM42 stainless steel Pipe diameter 20-61 mm horizontal, vertical mounting Material: stainless steel

    • Order code 51518263

      Pipe mounting kit CM42 PC

      Application: CM42 Polycarbonate Pipe diameter: 20-61 mm Horizontal, vertical mounting Material: stainless steel, powder coated

    • Order code 51517382

      Weather protection roof 253x228 mm, PC

      Application: Liquiline M CM42 Material: Polycarbonate 9,96 x 8,98 inch

    • Order code CYY101-A

      Stainless steel 1.4301, 320x300x270mm

    • Order code 51518284

      Panel mounting kit 138x138 stainl.steel

      Application: CM42 stainless steel For cutout 138 x 138 mm 5,44 x 5,44 inch

    • Order code 51518173

      Panel mounting kit 138x138 mm, PC

      Application: CM42 Polycarbonate For cutout 138 x 138 mm 5,44 x 5,44 inch

    • Order code XPRFID-

      Spare RFID TAG

      Consists of: RFID TAG, fixing wire, crimp sleeve.

    • Order code CY42-

      DAT module CY42

      DAT module Liquiline M CM42 Parameter change feature enhancement Software update language catalog enhancement store configuration

Success stories

  • real-time monitoring of critical parameters in fermentation processes real-time monitoring of critical parameters in fermentation processes

    Advanced bioprocess control

    From time consuming sample analysis to real-time monitoring of critical parameters in fermentation processes thanks to complete solutions from hardware to development and analytical services.

  • Baltic Sea water used as cooling water in the power station Baltic Sea water used as cooling water in the power station

    Cooling water directly from the Baltic Sea

    With the CUS52D, power plant operator KNG benefits from reduced maintenance costs due to reliable, stable measurement even under harsh conditions in salt water.

  • Reaction of styrene-butyl acrylate emulsion polymerizatio Reaction of styrene-butyl acrylate emulsion polymerizatio

    Monitoring Emulsion Polymerization Reactions

    Process optimization via reaction endpoint detection and control of kinetics

  • Schematic diagram of process-control system for semi-batch polymerization Schematic diagram of process-control system for semi-batch polymerization

    Semi-batch polymerization

    Monitoring and control of a semi-batch polymerization with Raman spectroscopy

  • Industrial WWTP at Pasfrost Industrial WWTP at Pasfrost

    Compliance made easy

    The automated phosphate monitoring with Liquiline System CA80PH helps the food company Pasfrost ensure the compliance with the strict limit values for its industrial wastewater.