Specs at a glance
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Input
One channel transmitter for Memosens and analog (pH, ORP, conductivity)
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Output / communication
1/2 x 4 to 20 mA, HART, Profibus, FF
Additional second output possible, also later -
Ingress protection
IP66/67, NEMA 4X
Field of application
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.
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 protocols and interfaces:
0/4...20 mA
HART
PROFIBUS PA
FOUNDATION Fieldbus
With its international explosion protection approvals, such as IECEx, ATEX, FM, CSA, TIIS and NEPSI, the transmitter is suitable for hazardous area use.
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 replaced
Videos
Extended selection
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High-end products
- Highly functional and convenient
Technical excellence
Simplicity
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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
| FLEX selections | Technical excellence | Simplicity |
|---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
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Simplicity
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Lean selection Handle your core processes easily |
Technical excellence
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Simplicity
|
Extended selection Optimize your processes with innovative technologies |
Technical excellence
|
Simplicity
|
Xpert selection Master your most challenging applications |
Technical excellence
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Simplicity
Variable |
Predecessor
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Technical Information (TI)
TI Liquiline M CM42
English version - 08/2025
Two-wire transmitter for hazardous and non-hazardous areas
EN 18/08/202515/10/2020Language:
English
Version:
18/08/2025
File size:
4.5 MB
File name:
TI00381CEN_1725-00.pdf
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Short Instruction (KA)
Liquiline CM42
English version - 05/2021
Two-wire transmitter for pH/ORP, conductivity or oxygen
EN 31/05/2021Language:
English
Version:
31/05/2021
File size:
3.6 MB
File name:
KA01481CEN_0121.pdf
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Technical Information (TI)
TI Liquiline M CM42
Two-wire transmitter for hazardous and non-hazardous areas
EN 18/08/202515/10/2020Language:
English
Version:
18/08/2025
File size:
4.5 MB
File name:
TI00381CEN_1725-00.pdf
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Short Instruction (KA)
Liquiline CM42
Two-wire transmitter for pH/ORP, conductivity or oxygen
EN 31/05/2021Language:
English
Version:
31/05/2021
File size:
3.6 MB
File name:
KA01481CEN_0121.pdf
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Ex Safety Instruction (XA)
Liquiline M CM42
Supplement to: BA00381C
Safety instructions for electrical apparatus in explosion-hazardous
areas
UK Ex II (1)2G Ex ib[ia Ga] IICT6/T4 GbLanguage:
English
Version:
29/10/2021
File size:
939.2 KB
File name:
XA02725CEN_0121.pdf
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Ex Safety Instruction (XA)
XA Liquiline M CM42
Two-wire transmitter for hazardous areas
EAC 1Ex ib [ia Ga] IIC T6/T4 Gb XEN 28/07/202501/01/2021Language:
English
Version:
28/07/2025
File size:
429.1 KB
File name:
XA01504CEN_0325-00.pdf
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Ex Safety Instruction (XA)
XA Liquiline M CM42
Two-wire transmitter for hazardous areas
ATEX II 3G Ex ec [ic Gc] IIC T6 Gc
NEPSI Ex ec [ic Gc] IIC T6 GcEN 27/05/2025Language:
English
Version:
27/05/2025
File size:
536.3 KB
File name:
XA03517CEN_0125-00.pdf
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Ex Safety Instruction (XA)
Liquiline M CM42
NEPSI Ex ib [ia Ga] IIC T4/T6 Gb
防爆危险区电气设备使用安全指南Language:
Chinese
Version:
13/06/2022
File size:
1.1 MB
File name:
XA02858CZH_0122-00.pdf
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Ex Safety Instruction (XA)
XA Liquiline M CM42
Two-wire transmitter for hazardous areas
INMETRO Ex ib [ia Ga] IIC T6/T4 GbEN 31/10/2024Language:
English
Version:
31/10/2024
File size:
440.4 KB
File name:
XA03395CEN_0124-00.pdf
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Ex Safety Instruction (XA)
XA Liquiline CM42
Transmetteur 2 fils pour zones explosibles
FM IS NI Cl.I Div.1&2, Groupes A-D
CSA IS NI Cl.I,II,III Div.1&2, Groupes A-GEN 14/12/202301/07/202131/07/2020Language:
French
Version:
14/12/2023
File size:
1.2 MB
File name:
XA01687CFR_0623-00.pdf
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File size:
File name:
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Special Documentation (SD)
CY42 Liquiline DAT module Special Documentation
Liquiline DAT module
EN 31/10/2018Language:
English
Version:
31/10/2018
File size:
124.9 KB
File name:
SD01145CEN_0218.pdf
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Manufacturer Information (MI)
Liquiline CM42 Firmware Version 2.04.02 pH HART
Manufacturer Information according to NAMUR NE53
Language:
English
Version:
25/05/2020
File size:
130.3 KB
File name:
NE53 Manufacturer information CM42 pH.pdf
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Manufacturer Information (MI)
Liquiline CM42 Firmware Version 02.04.02 DO Foundation Fieldbus
Manufacturer Information according to NAMUR NE53
Language:
English
Version:
25/05/2020
File size:
133.4 KB
File name:
NE53 Manufacturer information CM42 DO.pdf
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Manufacturer Information (MI)
Liquiline CM42 Firmware Version 4.02.00 pH PROFIBUS PA
Manufacturer Information according to NAMUR NE53
Language:
English
Version:
20/05/2020
File size:
130.3 KB
File name:
NE53 Manufacturer information CM42 pH.pdf
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Manufacturer Information (MI)
PRM HART Package V1.05.00 Herstellerinformation beinhaltet PRM - Geräteliste, Freigabehinweise – HART
Herstellerinformation für Anwender betreffend Softwareänderungen (in
Anlehnung an NAMUR-Empfehlung 53)
Neue Software Version: 1.05.00Language:
German
Version:
08/04/2014
File size:
403.8 KB
File name:
MI00099S_04_de_06.14.pdf
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Manufacturer Information (MI)
Liquiline CM42 Firmware Version 02.04.02 DO PROFIBUS PA
Manufacturer Information according to NAMUR NE53
Language:
English
Version:
25/05/2020
File size:
133.4 KB
File name:
NE53 Manufacturer information CM42 DO.pdf
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Manufacturer Information (MI)
Liquiline CM42 Firmware Version 02.04.02 Conductivity PROFIBUS PA
Manufacturer Information according to NAMUR NE53
Language:
English
Version:
25/05/2020
File size:
133.4 KB
File name:
NE53 Manufacturer information CM42 cond.pdf
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Manufacturer Information (MI)
Liquiline CM42 Firmware Version 02.04.02 Conductivity HART
Manufacturer Information according to NAMUR NE53
Language:
English
Version:
25/05/2020
File size:
133.4 KB
File name:
NE53 Manufacturer information CM42 cond.pdf
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Manufacturer Information (MI)
Liquiline CM42 Firmware Version 02.04.02 pH Foundation Fieldbus
Manufacturer Information according to NAMUR NE53
Language:
English
Version:
25/05/2020
File size:
130.3 KB
File name:
NE53 Manufacturer information CM42 pH.pdf
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Manufacturer Information (MI)
Liquiline CM42 Firmware Version 02.04.02 DO HART
Manufacturer Information according to NAMUR NE53
Language:
English
Version:
25/05/2020
File size:
133.4 KB
File name:
NE53 Manufacturer information CM42 DO.pdf
-
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Manufacturer Information (MI)
Liquiline CM42 Firmware Version 02.04.02 Conductivity Foundation Fieldbus
Manufacturer Information according to NAMUR NE53
Language:
English
Version:
25/05/2020
File size:
133.4 KB
File name:
NE53 Manufacturer information CM42 cond.pdf
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