Specs at a glance
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Measuring range
2µS/cm - 2000 mS/cm
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Process temperature
max. 180°C (PEEK)
(356°F)max. 125°C (PFA)
(254°F) -
Process pressure
max. 20 bar (PEEK)
(290 psi) max. 16 bar (PFA)
(233 psi)
Field of application
Indumax CLS50 is an inductive conductivity sensor for standard, hazardous and high-temperature applications. Benefit from high chemical resistance and long durability thanks to robust materials (PFA, PEEK). Moreover, it is insensitive to soiling and performs reliable and repeatable even in harsh and aggressive media. The wide temperature range of -20 to +180 °C leaves nothing to be desired.
Indumax CLS50 measures toroidal conductivity in:
Chemicals:
- Concentration measurement of acids and bases
- Quality monitoring of chemical products in tanks and pipesFood & beverages:
- Phase separation of product/product mixtures in pipe systemsWastewater industry:
- Inlet monitoring
With its international explosion protection approvals, such as ATEX, FM, CSA, NEPSI, it is suitable for hazardous areas.
Benefits
High durability and chemical resistance even under harsh conditions
Dirt-repellent materials and large sensor opening avoid soiling
Wide temperature range and highly resistant materials make the sensor suitable for virtual any application
Robust design for outstanding long operating life
Approved for hazardous area use
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
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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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Operating Instruction (BA)
BA Indumax CLS50D/CLS50
English version - 04/2025
Inductive conductivity sensor for standard, Ex and high-temperature applications
EN 17/04/2025Language:
English
Version:
17/04/2025
File size:
807.5 KB
File name:
BA00182CEN_2424-00.pdf
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14 documents
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Technical Information (TI)
TI Indumax CLS50D/CLS50
Inductive conductivity sensor for standard, Ex and high-temperature applications
EN 26/01/202617/04/2025Language:
English
Version:
26/01/2026
File size:
949.6 KB
File name:
TI00182CEN_2226-00.pdf
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Operating Instruction (BA)
BA Indumax CLS50D/CLS50
Inductive conductivity sensor for standard, Ex and high-temperature applications
EN 17/04/2025Language:
English
Version:
17/04/2025
File size:
807.5 KB
File name:
BA00182CEN_2424-00.pdf
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Ex Safety Instruction (XA)
XA Indumax CLS50D, CLS50
电感式电导率传感器，可在标准场合、防爆（Ex）场合和高温工况中使用
NEPSI Ex ia IIC T4/T6 GaEN 31/08/202308/03/2022Language:
Chinese
Version:
31/08/2023
File size:
1.1 MB
File name:
XA00441CZH_1423-00.pdf
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Ex Safety Instruction (XA)
XA Indumax CLS50D, CLS50
电感式电导率传感器，可在标准场合、防爆（Ex）场合和高温工况中使用
ATEX / NEPSI Ex ic IIC T3 T4/T6 GcEN 20/09/202307/03/2022Language:
Chinese
Version:
20/09/2023
File size:
1.1 MB
File name:
XA02837CZH_0323-00.pdf
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Ex Safety Instruction (XA)
XA Indumax CLS50D, CLS50, CLS54
CSA IS/NI Cl.I Div. 1/2 GP A, B, C and D
Safety instructions for electrical apparatus in explosion-hazardous areasEN 19/02/2026Language:
English
Version:
19/02/2026
File size:
505.9 KB
File name:
XA02836CEN_0226-00.pdf
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Ex Safety Instruction (XA)
XA Indumax CLS50D, CLS50
ATEX II 1G Ex ia IIC T4/T6 Ga,
IECEx ia IIC T4/T6 Ga (CLS50D only)
Safety instructions for electrical equipment for explosion-hazardous areasEN 06/11/2025Language:
English
Version:
06/11/2025
File size:
443.5 KB
File name:
XA00182CEN_1425-00.pdf
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Ex Safety Instruction (XA)
XA CLS50D, CLS50, CLS54
Safety instructions for electrical equipment for explosion-hazardous areas
EAC Ex, 0Ex ia IIC T6/T4 Ga X
Supplement to:
BA00182C, BA01591CEN 09/01/2026Language:
English
Version:
09/01/2026
File size:
495.7 KB
File name:
XA02375CEN_0325-00.pdf
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Fields of Activities (FA)
Endress+Hauser 水質分析計ファミリ
ラインナップと事例
Language:
Japanese
Version:
23/03/2017
File size:
34.8 MB
File name:
FA00007CJA_2022_Endress Hauser liquid analysis family.pdf
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Fields of Activities (FA)
Sensoren, Messumformer, Kompaktgeräte and Armaturen
Kompetenz in der Flüssigkeitsanalyse
Language:
German
Version:
02/02/2026
File size:
4.3 MB
File name:
FA00007C_DE_Analyse_22-26_LowRes.pdf
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Fields of Activities (FA)
Sensors, transmitters, compact devices and assemblies
Experts in Liquid Analysis
Language:
English
Version:
02/02/2026
File size:
4.2 MB
File name:
FA00007C_EN_Analyse_22-26_LowRes.pdf
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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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