Specs at a glance
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Process temperature
4 to 40 °C (39 to 104 °F)
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Process pressure
Unpressurized
Field of application
Liquiline System CAT820 provides clear samples directly from your process. Equipped with Memosens technology, it simplifies commissioning and supports predictive maintenance. Easy cleaning of the special membrane surface and tool-free maintenance reduce your operating costs. CAT820 can be combined with the modular Flexdip holder to facilitate adaption to your process. It is fully controlled by the Liquiline System analyzer, allowing perfect synchronization of your measuring point.
Liquiline System CAT820 is designed for:
Aeration basins and outlets of municipal and industrial wastewater treatment plants
Surface waters
Taking aqueous samples from industrial processes
Benefits
Fast commissioning and plug & play thanks to Memosens technology and user-friendly Liquiline operating concept
Cost-effective through tool-free maintenance and easy replacement of filter elements
Advanced diagnostics with remote access for increased process safety
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Optional back-flush function for extended maintenance intervals and minimized effort
Various mounting options for perfect fit to the application
Predecessor
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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 |
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Measuring principle
Colorimetric
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Characteristic
Automatic sample preparation system for supplying process measuring devices with filtered samples
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Size
194 x 237 x 162 mm
7.64 x 9.33 x 6.38 in
(h x w x d) -
Design
Back-flush filter system with various filter mounting options: float, chain and immersion pipe
Full compatibility to holder CYH112 -
Process temperature
4 to 40 °C (39 to 104 °F)
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Ambient temperature
Unheated: 5 to 50 °C (41 to 122 °F)
Heated: -20 to 50 °C (-4 to 122 °F) -
Process pressure
Unpressurized
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Specials
Optional back-flush with pressurizd air (version with Memosens-Technology)
Controling and parametrization via Liquiline System CA80
Stand-alone version with time-control available -
Application
Sampling from aeration tank and secondary clarification of municipal and industrial wastewater treatment plants
Sampling of aqueous media from industrial processes -
Power supply
100 to 120/200 to 240 V AC 10%, 50/60 Hz
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Consumables
Cleaner CY820 for filter and hoses
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Installation Instructions (EA)
Kit manual for sample preparation systems CAT8xx Filter
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Installation Instructions (EA)
English version - 01/2026New version available in EnglishKit manual for sample preparation systems CAT8xx Filter - two-sided
EN 16/01/2026Language:
English
Version:
16/01/2026
File size:
2.1 MB
File name:
71223012 Anleitung Kits CAT8xx Filter 2020-06.pdf
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Installation Instructions (EA)
EA Sample preparation systems CAT820/860
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Installation Instructions (EA)
English version - 09/2025New version available in EnglishMaintenance
EN 12/09/2025Language:
English
Version:
12/09/2025
File size:
1.1 MB
File name:
EA01714CEN_0125-00.pdf
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Installation Instructions (EA)
EA CA8x/CAT8xx
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Installation Instructions (EA)
English version - 06/2025New version available in EnglishHose connector
EN 23/06/2025Language:
English
Version:
23/06/2025
File size:
2 MB
File name:
EA01522CEN_0225-00.pdf
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Installation Instructions (EA)
EA Sample preparation systems CAT820/860
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Installation Instructions (EA)
English version - 05/2025New version available in EnglishElectronics compartment
EN 26/05/2025Language:
English
Version:
26/05/2025
File size:
3.2 MB
File name:
EA01612CEN_0125-00.pdf
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Competence Brochure (CP)
良質な水のために
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Competence Brochure (CP)
Japanese version - 05/2025New version available in English上水道、配水網、地表水、工業プラント向けの斬新なアイデア
Language:
Japanese
Version:
22/05/2025
File size:
10.1 MB
File name:
CP01335CJA_0223_Competence in water.pdf
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Case Study (CS)
Case study: Plaatfilter zorgt voor lagere onderhoudskosten bij RWZI Utrecht
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Case Study (CS)
Dutch version - 07/2025New version available in EnglishPlaatfilter verlaagt onderhoudskosten bij RWZI Utrecht
Language:
Dutch
Version:
04/07/2025
File size:
3.9 MB
File name:
Casestudy_RWZI_CS01976C15NL01.25-00.pdf
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Accessories
71079930 (Russia)
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Accessories
Russian version - 02/2025New version available in EnglishSilikonfett, mittelviskos / Silicone grease
Language:
Russian
Version:
25/02/2025
File size:
187.6 KB
File name:
MSDS_71079930_(RUS).pdf
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Accessories
71079930 (Lithuania)
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Accessories
02/2025New version available in EnglishSilikonfett, mittelviskos / Silicone grease
Language:
Lithuanian
Version:
25/02/2025
File size:
221.7 KB
File name:
MSDS_71079930_(LT).pdf
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Accessories
71079930 (Italy)
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Accessories
Italian version - 02/2025New version available in EnglishSilikonfett, mittelviskos / Silicone grease
Language:
Italian
Version:
25/02/2025
File size:
41.7 KB
File name:
MSDS_71079930_(I).pdf
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Accessories
71079930 (Hungary)
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Accessories
Hungarian version - 02/2025New version available in EnglishSilikonfett, mittelviskos / Silicone grease
Language:
Hungarian
Version:
25/02/2025
File size:
125.3 KB
File name:
MSDS_71079930_(H).pdf
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