©Endress+Hauser
Specs at a glance
Output / communication
0/4-20 mA, Hart, Profibus
Field of application
Liquisys CPM253 is a standard pH/ORP transmitter for all analog and digital Memosens 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 two-point calibration make configuration and operation fast and easy.
The Liquisys CPM253 transmitter works with all pH/ORP glass and ISFET sensors in non-hazardous areas, for example in these industries and their utilities:
Chemicals
Food & Beverages
Power & Energy
Water & Wastewater
Primaries & Metal
Liquisys CPM253 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, proven Memosens interface for reliable sensor connection.
Reliable self-monitoring: Sensor check system for pH glass and reference, calibration plausibility check.
Easy to operate and service: Intuitive user interface, hot plug & play with pre-calibrated Memosens sensors, 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
CPM141S
CPM240S
CPM140
CPM130
CPM141
CPM230
CPM240
CPM151
CPM252
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
Design
pH/ORP field housing made of PC/ABS
Dimension
247x170x115mm
Temperature sensor
Display and current output
Output / communication
0/4-20 mA, Hart, Profibus
Additional certifications
Application
Water, waste water, process
Design
pH/ORP-field housing made of PC/ABS
Temperature sensor
Display and current output
Output / communication
0/4-20mA, Hart, Profibus.
Additional certifications
Most downloaded
pH measurement in industrial processes
English version - 12/2021
Selection and engineering guide for different industries and
applications
Language:
English
Version:
02/12/2021
File size:
3.2 MB
File name:
CP00010CEN_1621_pH selection guide_2021.pdf
General Station Description (GSD) - Liquisys pH - PROFIBUS PA
Language neutral - 11/2023
Any, PROFIBUS System, Any
Language:
Language neutral
Version:
07/11/2023
File size:
48.6 KB
File name:
EH_PA_AN_Liquisys_0x1516_V02_00_PALIB.zip
29 documents
Liquisys M CPM223/253
Technical Information
pH/ORP measurement
EN
German French Italian Japanese Polish Russian Turkish Chinese
30/09/2014
24/10/2013
20/06/2011
01/09/2007
01/04/2004
Language:
English
Version:
30/09/2014
File size:
999.7 KB
File name:
TI00194CEN_1514.pdf
Technical Information CCM 223/
Measurement of chlorine / chlorine dioxide/ total chlorine
EN
German French Italian Japanese Chinese
24/10/2013
20/06/2011
01/07/2006
01/09/2000
Language:
English
Version:
24/10/2013
File size:
642.3 KB
File name:
TI00214CEN_1413.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
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
Liquisys M CPM223/253
Operating Instructions
Transmitter
EN
Czech Danish German Spanish Finnish French Hungarian Italian Japanese Polish Portuguese Russian Chinese
01/09/2015
24/10/2013
20/06/2011
01/12/2005
01/03/2005
Language:
English
Version:
01/09/2015
File size:
2.7 MB
File name:
BA00194CEN_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
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
Instructions for service kits Liquisis M
Special documents
Language:
English
Version:
01/05/2000
File size:
198.2 KB
File name:
SD084CA2.pdf
AMS HART Package V1.12.00
Manufacturer Information includes AMS - Device List, Release Notes –
HART
Manufacturer Information for users regarding software updates
EN
German
30/07/2015
13/01/2015
15/04/2014
07/01/2014
18/03/2013
Language:
English
Version:
30/07/2015
File size:
438.9 KB
File name:
MI00095S_04_en_10.15.pdf
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
490
51501087
KIT CXM253 terminal strip power supply
Drawing number
Order code
470
51501079
Drawing number
Order code
310
51501074
KIT CPM2X3 Central module I1
Drawing number
Order code
40
51501081
KIT CPM2x3 central module I1 HART
Drawing number
Order code
40
51501083
KIT CPM2x3 Central modul I2
Drawing number
Order code
40
51501082
KIT CPM2x3 central module I2 HART
Drawing number
Order code
40
51501084
KIT CPM2X3 central module Profibus PA
Drawing number
Order code
40
51501085
Kit CPM2X3 central module Profibus DP
Drawing number
Order code
40
51502503
Kit CPM2x3: Central mod. PB DP; H/W 2.1x
Drawing number
Order code
40
71134724
Kit CxM2x3: Relay mod. for PBDP; H/W2.1x
Drawing number
Order code
290
71134732
KIT MKP2 Transmitter module pH/ORP/IsFET
Drawing number
Order code
230
51507096
KIT MKP3 transmitter module pH/ORP
Drawing number
Order code
230
51518244
KIT MKD1 Memosens-Transmittermodule cpl.
Drawing number
Order code
230
51514966
KIT CXM2X3 power supply 100..230 V AC
Drawing number
Order code
10
51500317
KIT CxM2x3 power supply 24 AC/DC
Drawing number
Order code
20
51500318
Kit CXM2X3 Relaismod. 2rel
KIT CXM2X3 relay mod. 2rel / CSA
Drawing number
Order code
290
51511446
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
290
51504304
Kit CXM2X3 Relais Mod. 4Rel+I/CSA
Drawing number
Order code
300
51504305
KIT CPM253 pH/mV terminal+screen plate
Drawing number
Order code
999
51501071
Post mounting kit for LIQUISYS
Upgrade "Plus-Package" for LIQUISYS-M
Upgrade cleaning for LIQUISYS-M
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