Short Overview

The Astacus² system is designed for the production of ultra pure water out of permeate from a reverse osmosis or deionised water. The Astacus² water purification system is available in different configurations (Reagent, Analytical & LifeScience) to meet the specific requirements of ultra pure water for different applications. Analytical is a version with UV lamp for low TOC value. Life Science version comes with UV lamp and Ultrafiltration Module for low TOC and low endotoxin values.

An optionally integrated TOC sensor allows the user to monitor the TOC content permanentely online. Besides that the Astacus² can be configured as bench top or bench-integrated system with external panel and wall mounted (with inclined display). The μS-control checks the conductivity of feed water to protect the cartridges against inappropriate feed water. If conductivity is too high the water flow will be rejected.

Technical Specifications:

18.2 MOhm x cm | 0.055 µS/cm; Type I


Max. 2 L/min

Production rate

< 10 ppb (Reagent), < 5 ppb (Life Science) and < 3 ppb (Analytical)

Total Organic Carbon (TOC)

uniTOC Advantages

Compact housing

Big touchscreen

Remote service module

Menus and wizards easy to use and mistake avoiding

New fixed and flexible dispenser

Easy access for cartridge exchange

Morning Dew


Bench integrated configuration (BI version)

To save valuable benchtop space the system can be ordered as BI configuration. The system will be installed underneath the work bench and only the display and dispenser are mounted on the wall.

Wall mounted configuration

To save valuable benchtop space the system can be ordered as wall mounted configuration. the whole system can be mounted on the wall with inclined display.

TOC-Monitoring (TI version)

The TOC monitoring during production and intermittent measurements during non-use periods allows to check the organic content in water continuously. The TOC value is measured between 1 and 999 ppb and can be shown in the display to monitor organic impurities.

Volumetric dispensing

Our dispenser allows the volumetric controlled dispensing of water with an increment of 0.1 L and a tap volume from 0.1 to 99 L. The system prevents overflow of containers and allows to dispense water without supervising.


The μS-control checks the conductivity of feed water to protect the cartridges against feed water of poor quality. If conductivity of the feed water is too high this water will be rejected and cannot influence the quality of the ultrapure water or harm the cartridge.


Technical Specifications
1 Ultrapure water quality 0.055 µS/cm; Type I
2 Resistivity 18.2 MegaOhm/cm
3 Total organic carbon (TOC) < 10 ppb reagent, < 5 ppb Life Science, < 3 ppb Analytical
4 Flow rate 2L/min, 1.5 L/min*
5 Bacteria < 1 cfu/mL
6 Particulate > 0.2 µm less than 1 particulate/mL
7 Pyrogen (endotoxins) < 0.001 EU/mL*
8 RNAse < 1 pg/mL*
9 DNAse < 5 pg/mL*
10 dimensions, weight, power 297 x 340 x 535 mm, 16-20 kg, 110 - 230 V
*with Life Science model
Feed Water Requirements
1 Type of feed water Reverse osmosis (RO) water or deionized (DI) water
2 Feed water conductivity < 10 µS/cm
3 inlet pressure 0 to 1.5 bar
4 Total organic content (TOC) < 50 ppb
5 Temperature 5 to 25 °C


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