©Endress+Hauser
Specs at a glance
Output / communication
0/4-20mA, Hart, Profibus.
Field of application
Liquisys CLM253 is a standard transmitter for all analog conductivity sensors. It improves your operational safety thanks to continuous plausibility, process and sensor checks. Select from numerous hardware and software modules, such as relays or fieldbus communication, to adapt it exactly to your measuring task. This modularity also allows you to upgrade the transmitter at any time. A simple menu and calibration make configuration and operation fast and easy.
The Liquisys CLM253 transmitter works with all analog conductivity sensors in non-hazardous areas, for example in these industries and their utilities:
Chemicals
Food & Beverages
Life Sciences
Power & Energy
Water &Wastewater
Primaries & Metal
Liquisys CLM253 features the following protocols and interfaces:
0/4...20 mA
HART
PROFIBUS DP
PROFIBUS PA
Benefits
More operational safety: Continuous process check system, customized alarm configuration, calibration plausibility check.
Broad functionality: Conductivity, resistivity and concentration measurement, ultrapure water monitoring according to USP and EP.
Easy to operate and service: Intuitive user interface, easy calibration, direct access for manual contact control.
Reduced maintenance: Automatic cleaning function (with Chemoclean) triggered by alarm or limit switch.
Fit for every application: Numerous extensions, such as P(ID) controller, timer, etc., allow for flexible adaption to all processes.
Predecessor
CLM141S
CLM141
CLM170
CLM130
Success stories
An automated system for pH measurements at AVR
AVR Waste in Botlek, Rotterdam, processes up to 1.7 million tons of residual waste per year. Discover how they optimized their pH measurement thanks to Endress+Hauser
Read the full story
Pure high quality beer and clean wastewater
Discover how Heineken meets all regulations to protect the brazilian environment with the Viomax CAS51D digital nitrate or SAC sensor from Endress+Hauser.
Read the full story
Simple products
Easy to select, install and operate
Technical excellence
Simplicity
Standard products
Reliable, robust and low-maintenance
Technical excellence
Simplicity
High-end products
Highly functional and convenient
Technical excellence
Simplicity
Specialized products
Designed for demanding applications
Technical excellence
Simplicity
FLEX selections
Technical excellence
Simplicity
Fundamental selection
Meet your basic measurement needs
Technical excellence
Simplicity
Lean selection
Handle your core processes easily
Technical excellence
Simplicity
Extended selection
Optimize your processes with innovative technologies
Technical excellence
Simplicity
Xpert selection
Master your most challenging applications
Technical excellence
Simplicity
Application
Water, waste water, process
Characteristic
4-wire transmitter with a two-line display
Design
Conductivity transmitter in a PC/ABS-field housing
Temperature sensor
Display and current output
Output / communication
0/4-20mA, Hart, Profibus.
Additional certifications
Most downloaded
Liquisys M CLM223/253
Operating Instructions
English version - 09/2015
Transmitter
EN
DA DE ES FI FR HU IT JA PL PT RO RU ZH
01/09/2015
24/10/2013
20/06/2011
01/10/2008
15/09/2005
Language:
English
Version:
01/09/2015
File size:
2.5 MB
File name:
BA00193CEN_1515.pdf
Liquisys M CLM223/253
Technical Information
English version - 12/2014
Transmitter for conductive and inductive sensors
EN
DE FR IT JA RU ZH
31/12/2014
24/10/2013
20/06/2011
01/12/2008
15/09/2005
Language:
English
Version:
31/12/2014
File size:
864.7 KB
File name:
TI00193CEN_1514.pdf
30 documents
Liquisys M CLM223/253
Technical Information
Transmitter for conductive and inductive sensors
EN
German French Italian Japanese Russian Chinese
31/12/2014
24/10/2013
20/06/2011
01/12/2008
15/09/2005
Language:
English
Version:
31/12/2014
File size:
864.7 KB
File name:
TI00193CEN_1514.pdf
Operating Instructions Liquisys M CXM223/253 PROFIBUS
Field Communikation for Liquisys M CXM223/253
EN
German French Italian Polish
01/12/2011
01/08/2009
01/09/2007
01/07/2006
01/10/2005
Language:
English
Version:
01/12/2011
File size:
1.7 MB
File name:
BA209CEN_1311.pdf
Operating Instructions Liquisys M CXM223/253 HART
Field Communication with Liquisys M CXM223/253
EN
German French
01/10/2005
01/07/2002
Language:
English
Version:
01/10/2005
File size:
541.4 KB
File name:
BA208CEN.pdf
Liquisys M CLM223/253
Operating Instructions
Transmitter
EN
Danish German Spanish Finnish French Hungarian Italian Japanese Polish Portuguese Romanian Russian Chinese
01/09/2015
24/10/2013
20/06/2011
01/10/2008
15/09/2005
Language:
English
Version:
01/09/2015
File size:
2.5 MB
File name:
BA00193CEN_1515.pdf
Ex-safety instructions CXM2X3
Safety instructions for electrical apparatus for explosion-hazardous
EN
German French
07/06/2005
27/09/2004
29/02/2004
Language:
English
Version:
07/06/2005
File size:
2.5 MB
File name:
XA194CA3.pdf
Instructions for service kits Liquisis M
Special documents
Language:
English
Version:
01/05/2000
File size:
198.2 KB
File name:
SD084CA2.pdf
Additional information for CSA Liquisys
Additional information for CSA Liquisys
Language:
English
Version:
24/09/2013
File size:
84.3 KB
File name:
CXM2X3_Beiblatt for CSA.pdf
Installation of M 12 plug
Special Documentation Installation of M 12 plug
Language:
English
Version:
01/10/1999
File size:
85.5 KB
File name:
SD052CA2.pdf
Leitfähigkeitsmessung in Industrieprozessen
Auswahl- und Engineeringhilfe für verschiedene Industrien und
Language:
German
Version:
27/04/2023
File size:
2.4 MB
File name:
CP01313CDE_0223_LF_Auswahlhilfe_web.pdf
さまざまな産業およびアプリケーション向けの選択およびエンジニアリングガイド
Language:
Japanese
Version:
12/01/2024
File size:
3.5 MB
File name:
CP01313CJA_0223_1024_Conductivity_sensor_selection_guide.pdf
Conductivity measurement in industrial processes
Selection and engineering guide for different industries and
Language:
English
Version:
27/04/2023
File size:
2.5 MB
File name:
CP01313CEN_0223_cond_selection_guide_web.pdf
Product family: Liquisys conductivity
Product root: CLM253-
EN
German French
31/07/2024
Language:
English
Version:
31/07/2024
File size:
368.5 KB
File name:
HE_01956_01.24_CLM253_China-RoHS_orange.pdf
Product family: Liquisys chlorine, Liquisys conductivity, Liquisys oxygen, Liquisys pH/ORP
Product root: CCM223-, CCM253-, CLM223-, CLM253-, COM223-, COM253-, CPM223-, CPM253-
EN
German French
17/07/2023
Language:
English
Version:
17/07/2023
File size:
321 KB
File name:
EC_00575_02.23_CxM2x3.pdf
Product family: Liquisys chlorine, Liquisys conductivity, Liquisys oxygen, Liquisys pH/ORP
Product root: CCM223-, CCM253-, CLM223-, CLM253-, COM223-, COM253-, CPM223-, CPM253-
Language:
English
Version:
17/07/2023
File size:
308.4 KB
File name:
UK_00563_01.23_CxM2x3.pdf
Product family: Liquisys conductivity
Product root: CLM253-
Language:
English
Version:
25/11/2024
File size:
138.2 KB
File name:
ED_00196_01.24.pdf
Product family: Liquisys conductivity
Product root: CLM223-, CLM253-
Language:
Russian
Version:
10/02/2025
File size:
1.2 MB
File name:
KZ 7500525.13.12.00635.pdf
Product family: Liquiline, Liquiline M, Liquisys chlorine, Liquisys conductivity, Liquisys pH/ORP
Product root: CCM223-, CCM253-, CLM223-, CLM223F-, CLM253-, CM14-, CM42-, CM442-, CM442R-, CM444-, CM444R-, CM448-, CM448R-, CM44P-,
Language:
Russian
Version:
10/02/2025
File size:
1.3 MB
File name:
KZ 7500525.13.12.00633.pdf
Product family: Liquisys conductivity
Product root: CLM223-, CLM253-
Language:
Russian
Version:
05/02/2025
File size:
1.2 MB
File name:
KZ 7500525.13.12.00625.pdf
Product family: Liquisys chlorine, Liquisys conductivity, LIQUISYS M,
LIQUISYS OXYGEN, Liquisys turbidity, SmarTec S
Product root: CCM223-, CCM253-, CLD134-, CLM223-, CLM223F-,
Language:
English
Version:
12/04/2018
File size:
41.2 KB
File name:
S4_COFC_000070173846_EN.pdf
Leitfähigkeits- und Temperatur Messumformer für konduktive und induktive
Language:
German
Version:
23/06/2016
File size:
25 KB
File name:
TTCLM253DE.doc
60 spare parts & accessories
60 spare parts & accessories
60 spare parts & accessories
Drawing number
Order code
410,420,46
51501068
Kit CxM253: Front foil + 6 key lifters
Drawing number
Order code
335
71071446
KIT CXM253 Internal housing parts
Drawing number
Order code
330,340,45
51501073
Transmitter connector set M12 Fieldbus
KIT CXM253 bottom of housing
Drawing number
Order code
400
51501072
KIT CXM/153/253: 2 pair of hinges
Drawing number
Order code
430
51501069
KIT CXM253 Ground terminal strip
Drawing number
Order code
403
51501087
KIT CXM253 terminal strip power supply
Drawing number
Order code
470
51501079
Drawing number
Order code
310
51501074
KIT CLM2x3 Central module I1 conductive
Drawing number
Order code
40
51501210
KIT CLM2X3 Conductive modul I1 HART
Drawing number
Order code
60
51501213
KIT CLM2X3 Conductive module I2
Drawing number
Order code
50
51501212
KIT CLM2X3 Conductive module I2 HART
Drawing number
Order code
70
51501214
KIT CLM2X3 cen. module Profibus PA cond.
Drawing number
Order code
80
51501215
Kit CLM2X3 central module ProfibusDPkond
Drawing number
Order code
90
51502502
Kit CLM2x3: Centralm. cond. PBDP;H/W2.1x
Drawing number
Order code
90
71134726
Kit CxM2x3: Relay mod. for PBDP; H/W2.1x
Drawing number
Order code
290
71134732
KIT CLM2x3 inductive module I1
Drawing number
Order code
40
51501216
KIT CLM2x3 Inductive modul I1 HART
Drawing number
Order code
60
51501219
KIT CLM2x3 Inductive module I2
Drawing number
Order code
50
51501218
KIT CLM2x3 Inductive module I2 HART
Drawing number
Order code
70
51501220
KIT CLM2X3 cen. module Profibus PA ind
Drawing number
Order code
80
51501221
Kit CLM2X3 central module Profibus DPind
Drawing number
Order code
90
51502501
Kit CLM2x3: Centralm. ind. PBDP; H/W2.1x
Drawing number
Order code
90
71134727
Kit MKIC Conductivity transmitter
Drawing number
Order code
240
51501206
Kit MKIC Conductiv.transmitter Non-Ex
Drawing number
Order code
240
71161133
KIT CXM2X3 power supply 100..230 V AC
Drawing number
Order code
15
51500317
KIT CxM2x3 power supply 24 AC/DC
Drawing number
Order code
20
51500318
KIT CXM2X3 relay mod. 2rel / CSA
Drawing number
Order code
290
51511446
Kit CXM2X3 Relaismod. 2rel
Kit CXM2X3 Relaismodule 4rel
Drawing number
Order code
300
51500321
KIT CXM2X3 relay mod. 4rel / CSA
Drawing number
Order code
300
51511447
Kit CXM2X3 Relais Mod. 2rel.+I/CSA
Drawing number
Order code
40
51504304
Kit CXM2X3 Relais Mod. 4Rel+I/CSA
Drawing number
Order code
45
51504305
Post mounting kit for LIQUISYS
Upgrade "Plus-Package" for LIQUISYS-M
Upgrade cleaning for LIQUISYS-M
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