Dissolved oxygen transmitter
Liquisys COM253
Compact field device for water, wastewater, utilities and fish farming
Liquisys COM253 is a standard transmitter for use with COS41 and COS61 oxygen 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.
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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 |
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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
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Extended selection Optimize your processes with innovative technologies |
Technical excellence
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Simplicity
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Xpert selection Master your most challenging applications |
Technical excellence
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Simplicity
Variable |
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Specs at a glance
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Input
1-channel transmitter.
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Output
0/4-20mA, Hart, Profibus.
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Quick selection
Individual configuration
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Benefits
More operational safety: Continuous process check system, customized alarm configuration, calibration plausibility check.
Reliable oxygen control: Current input for flow rate monitoring with controller shut off or for feedforward control.
Easy to operate...
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Field of application
The Liquisys COM253 transmitter works with Oxymax COS41 and Oxymax COS61 dissolved oxygen sensors in environmental applications, such as:
O2 control in the aeration basin
O2 control and monitoring of drinking water
Surface water monitoring
Process...
Documents / Manuals / Software
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Liquisys M COM223/253
Technical Information
Transmitter for oxygen sensors
Technical Information (TI) -
Liquisys M COM223/253
Operating Instructions
Transmitter
Operating Instruction (BA) -
Operating Instructions Liquisys M CXM223/253 HART
Field Communication with Liquisys M CXM223/253
Operating Instruction (BA) -
Orbit OOM 223 / 253
Installation and operation guide
Transmitter for dissolved oxygen
Operating Instruction (BA) -
Operating Instructions Liquisys M CXM223/253 PROFIBUS
Field Communikation for Liquisys M CXM223/253
Operating Instruction (BA) -
Ex-safety instructions CXM2X3
Safety instructions for electrical apparatus for explosion-hazardous
areas as per EC Directive 94/9/EC (ATEX)Ex Safety Instructions (XA) -
Instructions for service kits Liquisis M
Special documents
Instructions for service kits Liquisis M / CPM253 / CLM253 / COM253 /
CUM253Special Documentation (SD) -
Installation of M 12 plug
Special Documentation Installation of M 12 plug
CPM253 / COM253 / CLM253 / CUM253Special Documentation (SD) -
Additional information for CSA Liquisys
Additional information for CSA Liquisys
Special Documentation (SD) -
Saving costs by continuous monitoring of D.O. in wastewater
treatment
plant
Continuous monitoring of D.O. in wasterwater treatment
plant with
Liquisys COM253 D.O. transmitter with
COS61 optical D.O. sensorCase Studies (CS)02/10English -
Liquisys COM253
Sauerstoff- und Temperatur Messumformer
Tender Text12/16German -
GSD Single, GSD_EH_DP_AN_Liquisys_0x151E_V02_04_DPLIB, 14.04.2014 (Analys
is, Liquisys M, 0x151E)
PROFIBUS DP,
PROFIBUS System Version: AnyGeneral Station Description (GSD)2.04.00Language neutral -
GSD Single, GSD_EH_PA_AN_Liquisys_0x1518_V02_00_PALIB, 22.04.2014 (Analys
is, Liquisys M, 0x1518)
PROFIBUS PA,
PROFIBUS System Version: AnyGeneral Station Description (GSD)2.00.00Language neutral -
DTM Single, LiquisysM_COM2x3_DP_V2_40___V2_41, 28.10.2020 (Analysis, Liquisys M, 0x151E)
PROFIBUS DP,
DeviceCare Version: 1.07.00
Field Xpert - SMT70 Version: 1.05.00
FieldCare Version: 2.15.00Device Type Manager (DTM)1.5.153.348Language neutral -
DTM Single, LiquisysM_COM2x3_PA_V2_40___V2_41, 20.10.2020 (Analysis, Liquisys M, 0x1518)
PROFIBUS PA,
DeviceCare Version: 1.07.00
Field Xpert - SMT70 Version: 1.05.00
FieldCare Version: 2.15.00Device Type Manager (DTM)1.5.153.348Language neutral -
DTM Single, LiquisysMDO_COM2x3_V2_40, 26.10.2020 (Analysis, Liquisys M, 0x0094)
HART,
DeviceCare Version: 1.07.00
Field Xpert - SMT70 Version: 1.05.00
FieldCare Version: 2.15.00Device Type Manager (DTM)1.4.188.39Language neutral -
Liquisys Chlorine, Liquisys Conductivity, Liquisys Oxygen, Liquisys pH/ORP
Product Code: CCM223-, CCM253-, CLM223-, CLM253-, COM223-, COM253-, CPM223-, CPM253-
Declaration Number: EC_00575_01.17EU DeclarationGerman , English , fr -
TopHit, Sensor, PuriSys, OrbiSint, OrbiPore, OrbiPac, Memosens, Liquisys pH/ORP, Liquisys Oxygen, Liquisys Chlorine, Liquiline M, Liquiline, CeraTex, Ceramax, CeraLiquid, CeraGel
Product Code: CPS491-, CPS47D-, CPS471D-, CPS471-, CPS441D-, CPS441-, CPS42D-, CPS42-, CPS41E-, CPS41D-, CPS41-, CPS341D-, CPS31D-, CPS31-, CPS171D-, CPS491D-, CPS64-, CPS71-, CPS71D-, CPS71E-, CPS72-, CPS72D-, CPS76D-, CPS77D-, CPS91-, CPS91D-, CPS91E-, CPS92-, CPS92D-, CPS96D-, CPS97D-, CPS16D-, CCM223-, CCM253-, CM14-, CM42-, CM442-, CM442R-, CM444-, CM444R-, CM448-, CM448R-, CM44P-, CM72-, CM82-, COM223-, COM223F-, COM253-, COM253F-, CPF201-, CPF81-, CPF81D-, CPF82-, CPF82D-, CPM223-, CPM253-, CPS11-, CPS11D-, CPS11E-, CPS12-, CPS12D-, CPS12E-, CPS13-
Region/Country: Russia (TR CU)
Approval Agency: EAC
Approval Number: EAEC RU D-DE.AD07.B.01362/19MiscellaneousRussian -
TopHit, Sensor, PuriSys, OrbiSint, OrbiPore, OrbiPac, Memosens, Liquisys pH/ORP, Liquisys Oxygen, Liquisys Chlorine, Liquiline M, Liquiline, CeraTex, Ceramax, CeraLiquid, CeraGel
Product Code: CPS47D-, CPS471D-, CPS471-, CPS441D-, CPS441-, CPS42D-, CPS42-, CPS41E-, CPS41D-, CPS41-, CPS341D-, CPS31D-, CPS31-, CPS171D-, CPS16D-, CPS491-, CPS491D-, CPS64-, CPS71-, CPS71D-, CPS71E-, CPS72-, CPS72D-, CPS76D-, CPS77D-, CPS91-, CPS91E-, CPS92-, CPS92D-, CPS96D-, CPS97D-, CCM223-, CCM253-, CM14-, CM42-, CM442-, CM442R-, CM444-, CM444R-, CM448-, CM448R-, CM44P-, CM72-, CM82-, COM223-, COM223F-, COM253-, COM253F-, CPF201-, CPF81-, CPF81D-, CPF82-, CPF82D-, CPM223-, CPM253-, CPS11-, CPS11D-, CPS11E-, CPS12-, CPS12D-, CPS12E-, CPS13-
Region/Country: Russia (TR CU)
Approval Agency: EAC
Approval Number: EAEC D-DE.AD07.B.01363/19MiscellaneousRussian -
LIQUISYS M, OxyMax H, OxyMax W
Product Code: COS71-, COM253F-, COM253-, COM223-, COM223F-, COS61-, COS41-, COS31-, COS21-
Region/Country: Russia
Approval Agency: Rosstandart
Approval Number: OC.C.31.004.A_35505MetrologyRussian -
Liquisys Chlorine, Liquisys Conductivity, LIQUISYS M, Liquisys Oxygen, Liquisys Turbidity, SmarTec S
Product Code: CUM253-, CUM223-, CPM253-, CPM223-, COM253F-, COM253-, COM223F-, COM223-, CLM253-, CLM223F-, CLM223-, CLD134-, CCM253-, CCM223-
Region/Country: Canada, USA
Approval Agency: CSAOrdinary Location Product SafetyEnglish
Accessories / Spare parts
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Order code 51500320
Kit CXM2X3 Relaismod. 2rel
Upgrade of LIQUISYS-M basis version by 2 floating changeover contacts.
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Nr 290 Order code 51511446
KIT CXM2X3 relay mod. 2rel / CSA
Upgrade of LIQUISYS-M basis version by 2 floating changeover contacts.
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Nr 300 Order code 51500321
Kit CXM2X3 Relaismodule 4rel
Upgrade of LIQUISYS-M basic version by 4 floating changeover contacts.
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Nr 300 Order code 51511447
KIT CXM2X3 relay mod. 4rel / CSA
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Nr 290 Order code 51504304
Kit CXM2X3 Relais Mod. 2rel.+I/CSA
Upgrade of LIQUISYS-M basic version by 2 contacts and current input 4-20mA.
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Nr 300 Order code 51504305
Kit CXM2X3 Relais Mod. 4Rel+I/CSA
Upgrade of LIQUISYS-M basic version by 4 contacts and current input 4-20mA.
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Nr 40 Order code 51501225
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Nr 60 Order code 51501223
KIT COM2x3 Central module I1 HART
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Nr 50 Order code 51501222
KIT COM2x3 Central module I2
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Nr 70 Order code 51501226
KIT COM2x3 central module I2 HART
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Nr 80 Order code 51501227
KIT COM2X3 central module Profibus PA
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Nr 90 Order code 51502500
Kit COM2X3 central module Profibus DP
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Nr 90 Order code 71134729
Kit COM2x3: Central mod. PB DP; H/W 2.1x
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Nr 290 Order code 71134732
Kit CxM2x3: Relay mod. for PBDP; H/W2.1x
Content: 1x Relay module Profibus DP 2x Relay, 1x Current input DP connection qualified from H/W 2.10
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Nr 250 Order code 51501207
KIT MKO1 Transmitter O2/Temperature
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Nr 250 Order code 51501208
KIT MKO1 Transmitter O2/Temp./pressure
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Nr 260 Order code 51506938
KIT MKO5 Transmitter O2/Temp./pressure
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Nr 10 Order code 51500317
KIT CXM2X3 power supply 100..230 V AC
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Nr 20 Order code 51500318
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Nr 410 Order code 51501068
KIT CXM253 housing cover
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Nr 335 Order code 71071446
Kit CxM253: Front foil + 6 key lifters
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Order code 51506966
KIT COM253 sensor panel jack SXB
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Nr 330,340,450, Order code 51501073
KIT CXM253 Internal housing parts
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Nr 260,490 Order code 51517800
Upgrade Kit from COS41 to COS31+COS61
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Nr 400 Order code 51501072
KIT CXM253 bottom of housing
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Nr 430 Order code 51501069
KIT CXM/153/253: 2 pair of hinges
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Nr 470 Order code 51501079
KIT CXM253 terminal strip power supply
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Nr 310 Order code 51501074
KIT CXM253 Ribbon cables
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Order code 50086842
Post mounting kit for LIQUISYS
for mounting the field-transmitters on horizontal or vertical pipes (max. diam. 60 mm). Material: stainless steel V2A
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Order code 51500385
Upgrade "Plus-Package" for LIQUISYS-M
Upgrade of LIQUISYS-M basic version (parameter pH,Cond.,Tu,CL,O2 (WX to WS)) to S-version (plus-package). Serial number of instrument needed.
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Order code 51501679
Upgrade "Plus-Package" for COM 2X3
Upgrade of Liquisys-M basic version (parameter DO (DX to DS)) to S-version (plus-package). Serial number of instrument needed.
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Order code 51500963
Upgrade cleaning for LIQUISYS-M
Upgrade of LIQUISYS-M basic version by cleaning functionality (Chemoclean) (serial number of instrument needed). If not yet installed, a 4-relay board must be ordered separately (51500321).
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Predecessor