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Training
Analog conductivity sensor
Condumax CLS21
Conductive conductivity sensor for medium to high measuring ranges
Condumax CLS21 is a robust conductivity sensor for all process and environmental applications. It provides you with precise and reliable measuring values for an optimum process and product quality monitoring. Better still, the sensor features high chemical, thermal and mechanical stability and high durability.
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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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Measurement range
k=1: 10,0 µS/cm - 20,0 mS/cm
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Process temperature
max. 135°C
(max. 275°F) -
Process pressure
max. 16 bar at 20°С
(max. 232psi at 68°F)
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Quick selection
Individual configuration
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Benefits
Reliable and accurate measuring values at medium to high conductivities
Robust design for long durability and low maintenance
High chemical, thermal and mechanical stability
Quality certificate stating the individual cell constant
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Field of application
Condumax CLS21 measures conductivity in all process and environmental applications, such as:
Potable water treatment
Desalination plants
Industrial water treatment
River/lake monitoring
Phase separation in medium conductivities (e.g. milk/water)
With...
Documents / Manuals / Software
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Condumax CLS21D/CLS21
Technical Information
Conductivity sensors, analog or digital with Memosens technology
Technical Information (TI) -
Condumax CLS15/16/21
For conductive measurement of conductivity in liquids
Operating Instruction (BA) -
Ex Safety Instructions CLS XXG
Sensors for conductive Conductivity Measurement
Ex Safety Instructions (XA) -
Ex Safety Instructions CLS XX
Sicherheitshinweise für explosionsgefährdete Bereiche.
Safety instructions for hazardous areas.
Conseils de sécurité pour zones explosibles.Ex Safety Instructions (XA) -
Conductivity measurement in industrial processes
Selection and engineering guide for different industries and
applicationsCompetence Brochure (CP)12/19English -
Leitfähigkeitsmessung in Industrieprozessen
Auswahl- und Engineeringhilfe für verschiedene Industrien und
AnwendungenCompetence Brochure (CP)12/19German -
Condumax W CLS21
Leitfähigkeitsmesszelle konduktiv mit Pt 100 Temperaturfühler
Tender Text12/16German -
Measurement of electrical conductivity
(.mp4 format, 70,7MB)
The conductivity of a liquid can be measured using the conductive or
toroidal measuring principles. This video shows what it is about and how
these measuring principles work.Animation01/14fr -
Measurement of electrical conductivity
(.mp4 format, 116 MB)
The conductivity of a liquid can be measured using the conductive or
toroidal measuring principles. This video shows what it is about and how
these measuring principles work.Animation01/14Polish -
ConduMax H, ConduMax W
Product Code: CLS12-, CLS13-, CLS15-, CLS16-, CLS21-
Declaration Number: EC_00317_01.16EU DeclarationGerman , English , fr -
ConduMax H, ConduMax W
Product Code: CLS12-, CLS13-, CLS15-, CLS16-, CLS21-
Declaration Number: EC_00317_02.16EU DeclarationGerman , English , fr -
ConduMax H, ConduMax W, InduMax H, InduMax P, Liquisys Conductivity, Memosens, SmarTec, SmarTec S
Product Code: CLS82D-, CLS54D-, CLS54-, CLS50D-, CLS50-, CLS30-, CLS21D-, CLS21-, CLS19-, CLS16D-, CLS16-, CLS15D-, CLS15-, CLS13-, CLS12-, CLM253-, CLM223F-, CLM223-, CLD18-, CLD134-, CLD132-
Approval Number: EAEC RU D-DE.AD.07.B.01362/19MiscellaneousRussian -
SmarTec S, SmarTec, Sensor, Memosens, Liquisys Conductivity, Liquiline, InduMax P, InduMax H, ConduMax W, ConduMax H, Chloromax, ANALOG
Product Code: CLM253-, CLS12-, CLS13-, CLS15-, CLS15D-, CLS16-, CLS16D-, CLS19-, CLS21-, CLS21D-, CLS30-, CLS50-, CLS50D-, CLS54-, CLS54D-, CLS82D-, CYM290-, CLM223F-, CLM223-, CLD18-, CLD134-, CLD132-, CCS55D-, CCS51D-, CCS51-, CCS50D-, CCS50-, CCS241-, CCS240-, CCS142D-, CCS141-, CCS140-, CCS120D-, CCS120-
Region/Country: Russia (Declaration of Conformity)
Approval Number: EAEC RU D-DE.AD07.B.01363/19MiscellaneousRussian -
TopHit, Sensor, OrbiSint, OrbiPore, OrbiPac, Memocheck, InduMax P, InduMax H, ConduMax W, ConduMax H, CeraLiquid, CeraGel
Product Code: CYP03D-, CTS1-, CPS92-, CPS91-, CPS72-, CPS71-, CPS491-, CPS471-, CPS441-, CPS42-, CPS41-, CPS13-, CPS12-, CPS11-, CPF82-, CPF81-, CLS54-, CLS50-, CLS21-, CLS16-, CLS15-, CLS13-, CLS12-
Region/Country: Canada
Approval Agency: CSAExplosion ProtectionEnglish -
ConduMax H, ConduMax W
Product Code: CLS12-, CLS13-, CLS15-, CLS16-, CLS21-
Region/Country: Brazil
Approval Agency: TÜV
Protection: Ex ia IIC T3 Ga, Ex ia IIC T4 Ga, Ex ia IIC T6 GaExplosion ProtectionPortuguese -
InduMax P, Liquiline M, Memosens
Product Code: CPS41-, CPS41D-, CPS42-, CPS42D-, CPS441-, CPS441D-, CPS471-, CPS471D-, CPS491-, CPS491D-, CPS64-, CPS71-, CPS71D-, CPS72-, CPS72D-, CPS76D-, CPS91-, CPS91D-, CPS92-, CPS92D-, CPS96D-, CTS1-, CYK10-, CYP01D-, CYP02D-, OPS171D-, CLS12-, CLS13-, CLS15-, CLS15D-, CLS16-, CLS16D-, CLS21-, CLS21D-, CLS50-, CLS50D-, CLS82D-, CM42-, COS21D-, CPS171D-, CPS16D-, CPS13-, CPS12D-, CPS12-, CPS11D-, CPS11-, CPF82D-, CPF82-, CPF81D-, CPF81-, COS51D-, COS22D-
Region/Country: USA
Approval Agency: FMExplosion ProtectionEnglish -
ConduMax H, ConduMax W
Product Code: CLS12-, CLS13-, CLS15-, CLS16-, CLS21-, OLS21-
Region/Country: China
Approval Agency: NEPSIExplosion ProtectionChinese -
ConduMax W
Product Code: CLS21-, CLS21D-
Region/Country: Canada (CRN)
Approval Agency: CRNPressure EquipmentEnglish -
ConduMax H, ConduMax W, InduMax H, InduMax P, Liquisys Conductivity, SmarTec S
Product Code: CLS54-, CLS52-, CLS50-, CLS30-, CLS21-, CLS19-, CLS16-, CLS15-, CLS13-, CLS12-, CLM253-, CLM223-, CLD134-, CLD132-
Region/Country: Russia
Approval Agency: Rosstandart
Approval Number: DE.C.31.004.A_66843MetrologyRussian -
SmarTec, Memosens, InduMax P, OxyMax W, OxyMax H, OrbiPac, Liquiline M, InduMax H, ConduMax W, ConduMax H
Product Code: CPS96D-, CM42-, CLS50D-, COS22D-, CLS82D-, CLS54D-, COS51D-, CLS54-, CLS52-, CPS76D-, CPS16D-, CPF82D-, CPF82-, CPF81D-, CPF81-, CLS50-, CLS30-, CLS16D-, CLS21D-, CLS21-, CLS15D-, CLS15-, CLS13-, CLS12-, CLD18-
Region/Country: Russia
Approval Agency: Rosstandart
Approval Number: OC.C.31.004.A NO 55929/1MetrologyRussian
Accessories / Spare parts
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Order code 50014431
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Order code 50014433
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Order code 50015632
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Order code 50081902
Calibration solution CLY11-A, 74,0 uS/cm
500 ml, reference temperature 25oC. Precision solution referred to SRM of NIST. With temp. table for qualified calibration of conductivity measuring systems acc. to ISO
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Order code 50081903
Calibration solution CLY11-B,149,6 uS/cm
500 ml, reference temperature 25oC. Precision solution referred to SRM of NIST. With temp. table for qualified calibration of conductivity measuring systems acc. to ISO.
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Order code 50081904
Calibration solution CLY11-C,1,406mS/cm
500 ml, reference temperature 25oC. Precision solution referred to SRM of NIST. With temp. table for qualified calibration of conductivity measuring systems acc. to ISO
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Order code 50081905
Calibration solution CLY11-D,12,64 mS/cm
500 ml, reference temperature 25oC. Precision solution referred to SRM to NIST. With temp. table for qualified calibration of conductivity measuring systems acc. to ISO
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Order code 50081906
Calibration solution CLY11-E,107,00mS/cm
500 ml, reference temperature 25oC. Precision solution referred to SRM of NIST. With temp. table for qualified calibration of conductivity measuring systems acc. to ISO
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Predecessor