Liquisys CLM253 is a compact field transmitter for conductivity, resistivity and concentration.

Conductivity transmitter
Liquisys CLM253

Compact field device for all industries

CLM253

Compare

Specs at a glance

Input

One-channel transmitter
Output / communication

0/4-20mA, Hart, Profibus.
Ingress protection

IP65

See all specifications

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

CLM240
CLM151
CLM252

Success stories

50% less precipitant - 100% reliability and cooperation

IDEA achieved tremendous cost savings through continous monitoring with the CA80PH Analyzer at their site in Wallonia
Read the full story
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
Automated pH measuring point in wastewater

The Dow plant in Stade relies on Endress+Hauser solutions for pH monitoring in the treatment of production wastewater.
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
Conductivity system optimises production of biosurfactants

Holiferm produces sustainable biosurfactants using a patented gravity separation fermentation process. The company was seeking a way to automate the measurement of the critical phase separation step.
Read the full story

Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

Variable

What is FLEX?

FLEX selections	Technical excellence	Simplicity
F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
F L E X Extended selection Optimize your processes with innovative technologies	Technical excellence	Simplicity
F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable

Learn more about the FLEX selections

Language:	Russian
Version:	11/10/2021
File size:	201.2 KB
File name:	EAEC N RU D-DE.PA01.B.00347_21.pdf

	EN
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

Language:	English
Version:	01/10/2005
File size:	541.4 KB
File name:	BA208CEN.pdf

	EN
01/12/2011
01/08/2009
01/09/2007
01/07/2006
01/10/2005

Language:	German
Version:	27/04/2023
File size:	2.4 MB
File name:	CP01313CDE_0223_LF_Auswahlhilfe_web.pdf

Language:	Japanese
Version:	12/01/2024
File size:	6.3 MB
File name:	CP01313CJA_0223.pdf

	EN
01/10/2005
01/07/2002

	EN
07/06/2005
27/09/2004
29/02/2004

	EN
01/10/1999

	EN
01/05/2000

Conductivity transmitter Liquisys CLM253

Compact field device for all industries

Specs at a glance

Input

Output / communication

Ingress protection

Field of application

Benefits

Predecessor

Success stories

50% less precipitant - 100% reliability and cooperation

An automated system for pH measurements at AVR

Automated pH measuring point in wastewater

Pure high quality beer and clean wastewater

Conductivity system optimises production of biosurfactants

Measuring principle

Application

Characteristic

Design

Material

Dimension

Temperature sensor

Ex certification

Ingress protection

Input

Output / communication

Additional certifications

Back

Product family: Liquiline, Liquiline M, Liquisys chlorine, Liquisys conductivity, Liquisys oxygen, Liquisys pH/ORP, New analyzer pla tform, SmarTec, SmarTec S, TOC Analyzer, TOCII

Liquisys M CLM223/253 Technical Information

Operating Instructions Liquisys M CXM223/253 HART

Operating Instructions Liquisys M CXM223/253 PROFIBUS

Liquisys M CLM223/253 Operating Instructions

Ex-safety instructions CXM2X3

Installation of M 12 plug

Instructions for service kits Liquisis M

Additional information for CSA Liquisys

Leitfähigkeitsmessung in Industrieprozessen

産業プロセスにおける導電率の測定

Back

KIT CXM253 housing cover

Kit CxM253: Front foil + 6 key lifters

KIT CXM253 Internal housing parts

Transmitter connector set M12 Fieldbus

KIT CXM253 bottom of housing

KIT CXM/153/253: 2 pair of hinges

KIT CXM253 Ground terminal strip

KIT CXM253 terminal strip power supply

KIT CXM253 Ribbon cables

KIT CLM2x3 Central module I1 conductive

KIT CLM2X3 Conductive modul I1 HART

KIT CLM2X3 Conductive module I2

KIT CLM2X3 Conductive module I2 HART

KIT CLM2X3 cen. module Profibus PA cond.

Kit CLM2X3 central module ProfibusDPkond

Kit CLM2x3: Centralm. cond. PBDP;H/W2.1x

Kit CxM2x3: Relay mod. for PBDP; H/W2.1x

KIT CLM2x3 inductive module I1

KIT CLM2x3 Inductive modul I1 HART

KIT CLM2x3 Inductive module I2

KIT CLM2x3 Inductive module I2 HART

KIT CLM2X3 cen. module Profibus PA ind

Kit CLM2X3 central module Profibus DPind

Kit CLM2x3: Centralm. ind. PBDP; H/W2.1x

Kit: MKIC Conductiv. transmitter Non-Ex

KIT CXM2X3 power supply 100..230 V AC

KIT CxM2x3 power supply 24 AC/DC

KIT CXM2X3 relay mod. 2rel / CSA

Kit CXM2X3 Relaismod. 2rel

Kit CXM2X3 Relaismodule 4rel

KIT CXM2X3 relay mod. 4rel / CSA

Kit CXM2X3 Relais Mod. 2rel.+I/CSA

Kit CXM2X3 Relais Mod. 4Rel+I/CSA

Post mounting kit for LIQUISYS

Upgrade "Plus-Package" for LIQUISYS-M

Upgrade cleaning for LIQUISYS-M

Memograph M RSG45 data manager

Input

Output

Display

Conductivity transmitter
Liquisys CLM253