Automatic Sample Conditioning for Reliable Water Analysis
The Endress+Hauser Liquiline System CAT820 is a sample preparation system designed to supply analyzers and measuring instruments with filtered process samples.
In many water and wastewater applications, suspended solids, particles and contaminants can affect measurement accuracy or damage sensitive analytical equipment. The CAT820 removes unwanted particles through an integrated filtration system, providing a clean and stable sample stream for downstream analysis.
The system is mainly designed for:
Municipal wastewater treatment plants
Industrial wastewater treatment plants
Surface water monitoring
Industrial process water analysis
In-situ Filtration for Continuous Sample Supply
The CAT820 uses an in-situ filtration principle that enables direct sample preparation at the measuring point.
Instead of transporting untreated process water over long distances, the system prepares the sample close to the process, helping reduce:
Sample contamination risk
Response delays
Maintenance requirements
Measurement instability caused by particles
The filtered sample can then be supplied to compatible Liquiline analyzers and measuring systems for reliable analysis.
Designed for Wastewater and Industrial Applications
The CAT820 is particularly suitable for applications where water contains suspended solids or variable contamination levels.
Typical measurement applications include:
Wastewater Treatment
The system can be installed at:
Aeration basins
Secondary clarification outlets
Municipal wastewater treatment processes
Industrial wastewater treatment systems
It provides prepared samples for parameters such as chemical oxygen demand, nutrients and other water quality measurements when combined with suitable analyzers.
Surface Water Monitoring
For environmental water monitoring applications, the CAT820 provides consistent sample preparation from natural water sources.
Applications include:
River monitoring
Reservoir monitoring
Water quality analysis stations
Industrial Process Water Analysis
The CAT820 can support industrial facilities requiring continuous monitoring of aqueous process streams.
Applications include:
Process wastewater monitoring
Production water analysis
Environmental compliance monitoring
Memosens Technology for Simplified Operation
The CAT820 is integrated into the Endress+Hauser Liquiline platform and benefits from Memosens technology.
Advantages include:
Simplified commissioning
Improved diagnostic functions
Easier maintenance management
Better synchronization with Liquiline analyzers
The system can be fully controlled by Liquiline System analyzers, allowing coordinated operation of the complete measuring point.
Easy Maintenance and Reduced Operating Costs
A key design focus of the CAT820 is reducing maintenance effort in demanding water applications.
The system provides:
Tool-free replacement of filter elements
Easy cleaning of the membrane surface
Optional automatic back-flush function
Longer maintenance intervals
These features help improve measuring point availability and reduce routine service work.
Flexible Installation with Modular Mounting Options
The CAT820 can be combined with Endress+Hauser modular mounting systems, including the Flexdip holder system, allowing flexible installation according to different process conditions.
Available mounting arrangements help adapt the sample preparation system to:
Open channels
Tanks
Basins
Different sampling locations
This flexibility makes the CAT820 suitable for a wide range of wastewater and water monitoring installations.
Optional Back-flush Function for Extended Service Life
For applications with higher particle loading, the CAT820 can be equipped with an optional back-flush function.
Compressed air back-flushing helps remove accumulated deposits from the filter surface, reducing clogging and extending maintenance intervals.
This function is especially beneficial in wastewater applications where suspended solids can quickly affect sampling performance.
Compact Design for Field Installation
The CAT820 features a compact housing design suitable for installation near the measuring point.
Main design characteristics include:
Compact dimensions
Flexible filter mounting options
Compatibility with CYH112 holder system
Suitable for outdoor and industrial environments with appropriate protection
The compact construction allows integration into existing measurement stations without requiring large installation spaces.
Applications Across Industries
Municipal Wastewater Treatment
The CAT820 helps maintain reliable water quality monitoring in municipal wastewater plants.
Applications:
Aeration basin monitoring
Clarifier outlet analysis
Nutrient monitoring
Industrial Wastewater Treatment
Suitable for industries requiring continuous wastewater quality control.
Applications:
Chemical wastewater monitoring
Production discharge monitoring
Environmental compliance measurement
Water Management
The system supports reliable monitoring of natural water sources.
Applications:
Surface water analysis
Environmental monitoring stations
Water quality assessment
Key Features
Automatic sample preparation system for liquid analysis
In-situ filtration technology
Designed for wastewater and surface water applications
Provides filtered samples for analytical instruments
Compatible with Liquiline System analyzers
Memosens technology integration
Tool-free filter replacement
Easy membrane cleaning
Optional back-flush function
Flexible installation with Flexdip holder system
Suitable for municipal and industrial wastewater applications
Compact field installation design
Typical Applications
Wastewater Treatment Plants
Used for preparing samples from aeration tanks and secondary clarification outlets for reliable water analysis.
Industrial Process Water Monitoring
Suitable for industries requiring continuous monitoring of wastewater and process water quality.
Surface Water Monitoring
Provides consistent sample preparation for environmental monitoring systems.
Water Quality Analysis Systems
Works together with Endress+Hauser Liquiline analyzers to create complete automated water analysis measuring points.
FAQ
What is Endress+Hauser CAT820?
The CAT820 is an automatic sample preparation system used to provide filtered process samples for liquid analysis instruments, especially in wastewater and water monitoring applications.
What applications is CAT820 designed for?
The CAT820 is designed for:
Municipal wastewater treatment plants
Industrial wastewater treatment plants
Surface water monitoring
Industrial aqueous process samples
Does CAT820 measure water parameters directly?
No. The CAT820 is a sample preparation system, not an analyzer. Its function is to prepare and filter samples before they are measured by compatible analytical instruments.
What is the advantage of in-situ filtration?
In-situ filtration prepares samples directly near the process point, reducing contamination risk and improving measurement stability compared with transporting untreated samples over long distances.
Can CAT820 be used with Liquiline analyzers?
Yes. The CAT820 is designed to work with the Endress+Hauser Liquiline analysis platform and can be controlled by Liquiline System analyzers.
Does CAT820 require frequent maintenance?
The CAT820 is designed to reduce maintenance through tool-free filter replacement, easy cleaning and optional back-flush functionality.
