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)
Field of application
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.
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 its international explosion protection approvals, such as ATEX and FM, the sensor is suitable for hazardous area use.
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
Videos
Predecessor
Success stories
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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 |
|---|---|---|
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
Variable |
Most downloaded
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Technical Information (TI)
Condumax CLS21D/CLS21 Technical Information
English version - 01/2018
Conductivity sensors, analog or digital with Memosens technology
EN 31/01/201831/10/201410/09/201201/04/201001/10/2007Language:
English
Version:
31/01/2018
File size:
898.9 KB
File name:
TI00085CEN_1518.pdf
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17 documents
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Technical Information (TI)
Condumax CLS21D/CLS21 Technical Information
Conductivity sensors, analog or digital with Memosens technology
EN 31/01/201831/10/201410/09/201201/04/201001/10/2007Language:
English
Version:
31/01/2018
File size:
898.9 KB
File name:
TI00085CEN_1518.pdf
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Operating Instruction (BA)
Condumax CLS15/16/21
For contacting conductivity measurement in liquids
EN 01/06/202219/08/202010/10/201731/07/201631/10/2014Language:
English
Version:
01/06/2022
File size:
955.8 KB
File name:
BA01148CEN_0622-00.pdf
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Ex Safety Instruction (XA)
XA Condumax CLS12, CLS13, CLS15, CLS16B, CLS21
Conductivity sensors with conductive measurement of conductivity
ATEX II 1G Ex ia IIC T6 ... T2 GaEN 10/01/202413/12/202101/05/200801/03/2003Language:
English
Version:
10/01/2024
File size:
497.6 KB
File name:
XA00083CEN_1423-00.pdf
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Ex Safety Instruction (XA)
XA Condumax CLS12, CLS13, CLS15, CLS16B, CLS21
Conductivity sensors with conductive measurement of conductivity
NEPSI Ex ia IIC T6 ... T2 GaEN 12/04/2024Language:
English
Version:
12/04/2024
File size:
602.6 KB
File name:
XA03295CEN_0124-00.pdf
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Competence Brochure (CP)
Leitfähigkeitsmessung in Industrieprozessen
Auswahl- und Engineeringhilfe für verschiedene Industrien und
AnwendungenLanguage:
German
Version:
27/04/2023
File size:
2.4 MB
File name:
CP01313CDE_0223_LF_Auswahlhilfe_web.pdf
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Competence Brochure (CP)
産業プロセスにおける導電率の測定
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:
6.3 MB
File name:
CP01313CJA_0223.pdf
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Competence Brochure (CP)
Conductivity measurement in industrial processes
Selection and engineering guide for different industries and
applicationsLanguage:
English
Version:
27/04/2023
File size:
2.5 MB
File name:
CP01313CEN_0223_cond_selection_guide_web.pdf
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EU Declaration
Product family: ConduMax H, ConduMax W
Product root: CLS12-, CLS13-, CLS15-, CLS16-, CLS21-
Declaration number: EC_00317_02.16EN 01/06/2017Language:
English
Version:
01/06/2017
File size:
295.2 KB
File name:
EC_00317_02.16.pdf
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EU Declaration
Product family: ConduMax H, ConduMax W
Product root: CLS12-, CLS13-, CLS15-, CLS16-, CLS21-
Declaration number: EC_00317_03.16EN 30/03/2021Language:
English
Version:
30/03/2021
File size:
263 KB
File name:
EC_00317_03.16 unterschrieben.pdf
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EU Declaration
Product family: ConduMax H, ConduMax W
Product root: CLS12-, CLS13-, CLS15-, CLS16-, CLS21-
Declaration number: EC_00317_01.16EN 04/04/2016Language:
English
Version:
04/04/2016
File size:
30.6 KB
File name:
EC_00317_01.16.pdf
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Explosion Protection
Product family: CeraGel, CeraLiquid, ConduMax H, ConduMax W, InduMax H, InduMax P, Liquiline M, Memocheck, OrbiPac, OrbiPore, OrbiSi nt, Sensor, TopHit
Product root: CLS12-, CLS13-, CLS15-, CLS16-, CLS21-, CLS50-, CLS54-, CM42-, CPF81-, CPF82-, CPS11-, CPS12-, CPS13-, CPS41-, CPS42-,
CPS441-, CPS471-, CPS491-, CPS71-, CPS72-, CPS91-, CPS92-, CTS1-, CYP03D-
Region: Canada
Approval agency: CSA
Protection: Ex i Cl. I Div. 1Language:
English
Version:
01/06/2023
File size:
2.6 MB
File name:
CSA_CoC_1718339_CM42_2023-06-01.pdf
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Explosion Protection
Product family: InduMax P, Liquiline M, Memosens
Product root: CLS12-, CLS13-, CLS15-, CLS15D-, CLS16-, CLS16D-,
CLS21-, CLS21D-, CLS50-, CLS50D-, CLS82D-, CM42-, COS21D-, COS22D-,
COS51D-, CPF81-, CPF81D-, CPF82-, CPF82D-, CPS11-, CPS11D-, CPS12-,
CPS12D-, CPS13-, CPS16D-, CPS171D-, 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-
Region: USA
Approval agency: FMLanguage:
English
Version:
30/11/2020
File size:
523.6 KB
File name:
FM16US0145XSupp15.pdf
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Explosion Protection
Product family: ConduMax H, ConduMax W
Product root: CLS12-, CLS13-, CLS15-, CLS16-, CLS21-
Region: Brazil
Approval agency: TÜV
Protection: Ex ia IIC T3 Ga, Ex ia IIC T4 Ga, Ex ia
020 035 005Language:
Portuguese
Version:
16/07/2019
File size:
1.3 MB
File name:
CLSxx_TÜV 13.0888X_Rev3.pdf
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Explosion Protection
Product family: ConduMax H, ConduMax W
Product root: CLS12-, CLS13-, CLS15-, CLS16-, CLS16B-, CLS21-
Region: Europe (ATEX)
Approval agency: TÜV
Protection: Ex i Zone 0Language:
English
Version:
13/12/2023
File size:
2 MB
File name:
TUEV 15 ATEX 7778 X Issue02 EN_signed.pdf
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Explosion Protection
Product family: ConduMax H, ConduMax W
Product root: CLS12-, CLS13-, CLS15-, CLS16-, CLS21-
Region: China
Approval agency: NEPSI
Protection: Ex iLanguage:
Chinese
Version:
06/07/2023
File size:
3.9 MB
File name:
GYJ23.1375X CLSxx_CLS16B.pdf
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Pressure Equipment
Product family: ConduMax W
Product root: CLS21-, CLS21D-, CLS21E
Region: Canada (CRN)
Approval agency: CRNLanguage:
English
Version:
08/04/2021
File size:
12.2 MB
File name:
0F17064.5C CLS21E complete.pdf
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Tender Text
Condumax W CLS21
Leitfähigkeitsmesszelle konduktiv mit Pt 100 Temperaturfühler
Language:
German
Version:
30/11/2021
File size:
15.8 KB
File name:
TTCLS21DE.docx
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3 products & bundles
3 products
Often bought together
Accessories
- Calibration solution CLY11-A, 74,0 uS/cm
- Calibration solution CLY11-B,149,6 uS/cm
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