
Specs at a glance
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Measuring range
0 to 80 mg/l CaCO3
0 to 80 mg/l with dilution function to maximum 16 to 1600 mg/l CaCO3 -
Process temperature
4 to 40 °C (39 to 104 °F)
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Process pressure
Unpressurized
Field of application
Liquiline System CA80HA offers precise online analysis of water hardness in drinking water and process water. It helps you optimize the control of water softening processes such as ion exchange or reverse osmosis and ensures optimal quality of products that are influenced by water hardness. The analyzer's automatic calibration and cleaning and its low reagent consumption reduce operating costs while advanced diagnostics with remote access ensure consistent process safety.
Liquiline System CA80HA supports you in monitoring total water hardness:
To optimize reverse osmosis and ion exchanger systems
To classify water hardness in drinking water
To ensure process water quality in production plants
Benefits
The water hardness analyzer uses the phthalein purple method, ensuring direct comparability to lab results
Fast commissioning with plug & play thanks to Memosens technology and user-friendly operation
Reduces operating costs thanks to automatic calibration and cleaning, low reagent consumption and long reagent lifetime with optional cooling module
Easy upgrade of functionality to a complete measuring station - by adding modules and connecting Memosens sensors.
Advanced diagnostics with remote access for increased process safety
Easy, tool-free maintenance
Videos
Extended selection
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High-end products
- Highly functional and convenient
Technical excellence
Simplicity

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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 |
Predecessor
Success stories
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Measuring principle
Colorimetric
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Characteristic
Process analyzer for hardness in aqueous solutions
Comply with standard colorimetric measuring principle - phthalein purple method -
Size
Housing (open version):
793 x 530 x 417 mm
31.22 x 20.87 x 16.42 in
Housing (closed version):
793 x 530 x 463 mm
31.22 x 20.87 x 18.23 in
Housing with base:
1723 x 530 x 463 mm
67.83 x 20.87 x 18.23 in -
Design
Open design, cabinet and stand housing
High-Performance plastic ASA-PC, additional stand coated steel -
Process temperature
4 to 40 °C (39 to 104 °F)
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Ambient temperature
5 to 40 °C (41 to 104 °F)
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Process pressure
Unpressurized
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Sample flow rate
Min. 5 ml/min (0.17 fl.oz/min)
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Consistency of the sample
Low solid content (< 50NTU), aqueous homogeneous
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Application
Total hardness monitoring in reverse osmosis systems inlets, after ion exchange systems
Monitoring of water preparation in processes and drinking water -
Power supply
100 ... 120 VAC / 200 ... 240 VAC ± 10%
24 VDC ± 10%
50 ± 1 oder 60 ± 1,2 Hz -
Output / communication
2x 0/4 ... 20 mA
Webserver, Modbus, Ethernet/IP, Profibus DP -
Input
1 or 2 measuring channel
1 ... 4 digital sensor inputs for sensors with Memosens protocol (optional) -
Measuring range
0 to 80 mg/l CaCO3
0 to 80 mg/l with dilution function to maximum 16 to 1600 mg/l CaCO3 -
Consumables
Reagents and standard solutions CY80HA as well as cleaner CY800 are necessary for the operation
Regular maintenance is done with the parts of the maintenance kit CAV800
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Technical Information (TI)
TI Liquiline System CA80HA
English version - 05/2024
New version available in English
Colorimetric analyzer for total hardness
EN 23/05/202430/11/202213/07/202114/02/202020/03/2018Language:
English
Version:
23/05/2024
File size:
4.3 MB
File name:
TI01352CEN_0624-00.pdf
-
-
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Operating Instruction (BA)
BA Liquiline System CA80HA
English version - 05/2024
New version available in English
Colorimetric analyzer for total hardness
EN 23/05/202430/11/202213/07/202113/01/202020/03/2018Language:
English
Version:
23/05/2024
File size:
6.2 MB
File name:
BA01772CEN_0624-00.pdf
-
-
-
Technical Information (TI)
TI Liquiline System CA80HA
-
Technical Information (TI)
English version - 05/2024Colorimetric analyzer for total hardness
EN 23/05/202430/11/202213/07/202114/02/202020/03/2018Language:
English
Version:
23/05/2024
File size:
4.3 MB
File name:
TI01352CEN_0624-00.pdf
-
-
-
Operating Instruction (BA)
Memosens
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Operating Instruction (BA)
English version - 05/2022Sensor inputs with Memosens protocol
EN 30/05/202228/02/2019Language:
English
Version:
30/05/2022
File size:
3.3 MB
File name:
BA01245CEN_0822-00.pdf
-
-
-
Operating Instruction (BA)
BA Liquiline System CA80HA
-
Operating Instruction (BA)
English version - 05/2024Colorimetric analyzer for total hardness
EN 23/05/202430/11/202213/07/202113/01/202020/03/2018Language:
English
Version:
23/05/2024
File size:
6.2 MB
File name:
BA01772CEN_0624-00.pdf
-
-
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Short Instruction (KA)
Liquiline System CA80HA
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Short Instruction (KA)
English version - 05/2021Colorimetric analyzer for total hardness
EN 31/05/202116/12/201905/05/2017Language:
English
Version:
31/05/2021
File size:
3 MB
File name:
KA01331CEN_0321.pdf
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-
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Installation Instructions (EA)
Kit for analyzer CA8x: Valve
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Installation Instructions (EA)
English version - 05/2025This instruction applies to following spare part kit:
71218433 Kit CA8x: ValveEN 09/05/2025Language:
English
Version:
09/05/2025
File size:
2.1 MB
File name:
71231926 Anleitung Kit CA80 Ventil 2025-05_09-05-2025.pdf
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-
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Installation Instructions (EA)
Kit CM44x/CSXxx/CA80XX
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Installation Instructions (EA)
English version - 11/2022Module 485MB or 485DP
For Ethernet configuration, PROFIBUS DP, Modbus RS485EN 28/11/2022Language:
English
Version:
28/11/2022
File size:
1.8 MB
File name:
EA01447CEN_0122-00.pdf
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-
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Installation Instructions (EA)
Kit manual for CAV800: Maintenance
-
Installation Instructions (EA)
English version - 05/2025Kits for analyzer CA80: Maintenance kit CAV800
EN 09/05/2025Language:
English
Version:
09/05/2025
File size:
1.9 MB
File name:
71223025 Anleitung Kits CAV800 Wartung 2025-05.pdf
-
-
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Installation Instructions (EA)
Kits for analyzer CA80: Maintenance kit CAV800
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Installation Instructions (EA)
English version - 05/2025Installation instruction for CAV800
Kits for single parameter analyzerEN 22/05/202511/03/2025Language:
English
Version:
22/05/2025
File size:
1.9 MB
File name:
71223025 Anleitung Kits CAV800 Wartung 2025-05.pdf
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-
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Installation Instructions (EA)
EA Liquiline System CA80 analyzer
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Installation Instructions (EA)
English version - 03/2025Process engineering
EN 21/03/2025Language:
English
Version:
21/03/2025
File size:
6.1 MB
File name:
EA01591CEN_0125-00.pdf
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-
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Installation Instructions (EA)
EA CA8x / CAT8xx
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Installation Instructions (EA)
English version - 02/2025Hose connector
EN 13/02/2025Language:
English
Version:
13/02/2025
File size:
1.8 MB
File name:
EA01522CEN_0125-00.pdf
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