DUO™-i II.I | Deionized and Ultrapure Laboratory Water Purification System

Introduction to DUO™-i II.I Laboratory Water Purification System

The DUO™-i II.I Laboratory Water Purification System is fully integrated to produce up to 30 L/hr of Type II water directly from tap water. It dispenses up to 2 L/min of Type II pure water and Type I ultrapure water from a flexible dispenser.

Real-time water quality and operating conditions are displayed on the DUO™-i II.I Laboratory Water Purification System dispensing interface. A compact dispensing stand (28x30 cm) offers true flexibility to users by maximising bench space and locating the dispenser at the most convenient point of use.

This state-of-the-art platform has been designed to work with your unique feed water conditions, application needs and functional requirements. It maximises purification power at each stage so that the pure and ultrapure water outputs are consistently high in quality. In addition, system monitoring and water leak protection functions offer peace of mind for your laboratory's deionized and ultrapure water supply.

Applications for Type 2/DI Water

Type 2 water output from the DUO™-i II.I Laboratory Water Purification System meets or exceeds Type 2 water standards as specified by ASTM, CAP, ISO 3696, CLSI, and JIS K0557, and purified water as described in USP, EP, and ChP. Type 2 water is required for more sensitive laboratory applications, such as:

• Buffer & Media Preparations
• Sample Dilution & Reagent Preparation
• Spectrophotometry
• Protein Electrophoresis
• Cytology & Histology
• Glassware Washing & Rinsing

Applications for Type 1/Ultrapure Water

Type 1 water from the DUO™-i II.I Laboratory Water Purification System meets or exceeds Type 1 water standards as specified by ASTM, CAP, ISO 3696, CLSI, and JIS K0557, and high-purity water as described in USP, EP, and ChP. Type 1 water is required for critical laboratory applications such as:

• Molecular Biology, Immunology & Pharmacology
• Electrochemistry
• Critical Cell & Tissue Culture
• (GF) AAS, HPLC, IC, ICP-MS, GC, MS
• DNA Sequencing
• Genomics & Proteomics

Key Features of the DUO™-i II.I Laboratory Water Purification System

Integrated Reverse Osmosis Technologies

• Patented 2-stage reverse osmosis technology enables superior and stable output quality. Output conductivity of 5 μs/cm is typical from tap water as challenging as 2,000 μs/cm
• Superior RO purification with up to 99% ion rejection rate. This improves the life expectancy of DI cartridges and final filters

Flexible dispensing options

Draw Type II water in three ways: directly from the reservoir tap, from a flexible dispenser on the system, or from two additional remote dispensers each placed up to 2.9 m away (up to 5.8 m in serial).

• Real-time Resistivity and Total Organic Carbon (TOC) levels are monitored and displayed on screen
• Dispense rates of > 2 L/min from the tap, or up to 2 L/min from the remote dispenser, ensure > 120 litres availability for peak hour usage
• Routine system control functions are fully available on the dispenser, including “Print Report” for Good Laboratory Practices. This allows maximum bench space utilisation. For example, the main system, pre-treatment module and reservoir may all be placed under the bench

Choice of final filters to match your application needs:

• 2 μm for bacteria removal
• 1 μm for particulate removal
• Positively charged capsule for RNases, DNases and endotoxin removal

Integrated controls

Enables Type II water to be available from the reservoir. Water quality is maintained by optimising re-circulation, UV sterilisation and vent filtration to minimise re-contamination from CO2, volatile organic compounds, bacteria and particles

Integrated Pre-treatment Module

• Integrated controls on inlet water pressure and monitoring of flow rates to optimise system operations. Optional booster pumps are available
• 2” screen displays the colour-coded operating condition of each component
• Choice of cartridges based on local tap water conditions:
  • Silt Density Index (SDI)
  • Chlorine
  • Bacterial
• IC chip onboard the cartridges ensures proper installation and operation
• Easy cartridge replacement

Integrated Reservoir

• Reservoir controls such as UV exposure timing and conductivity levels are integrated with the main system
• The vent filter is fitted to reduce environmental contaminants such as CO₂, particles, bacteria and volatile organic compounds
• A dual-level sensing mechanism offers additional system protection when water exceeds critical levels (10% and 110%)

Integrated Polishing Technologies

• Choice of deionisation cartridges with IC tag to meet your applications:
  • Standard high-volume polishers
  • Low TOC for sensitive analysis
  • Low Boron for ICP analysis
• UV technology offers effective oxidation of organic materials and enables rapid water quality recovery upon system re-start
• Total Organic Carbon (TOC) monitoring option offers reliable, real-time results

Integrated System Monitoring

• Complete monitoring of conductivity, pressure and flow rate at up to 6 stages
• System conditions are visibly displayed with graphics and colour codes
• Automated disinfection processes ensure complete system sanitisation
• Multiple data management options, including RS232 and SD card

Integrated Water Leak Protection

• Unique base cover channels any potential water leaks to a drainage point. A leak sensor located at the drainage point will detect the presence of water droplets 1 mm from the discharge point
• An additional leak sensor may be placed inside the pre-treatment module

The Operating Screen provides comprehensive operating parameters at one glance:

• Water quality data from the dual output: conductivity, TOC, temperature and dispensing rate
• Reservoir water level
• On-line alerts

7” touch screen offers a friendly and intuitive user experience:

• “Touch” sequences similar to smartphones allow new users to operate with ease
• Colour-coding (red, amber, and blue) and Flashing indicators offer guidance to any non-routine actions needed and their urgency/criticality
• Unmatched “width” and “depth” of system control

8 Displayed languages are available, including English, French, German, Spanish, Portuguese, Chinese, Japanese, or Korean

Monitor screen provides scientific criteria for consumables management based on:

• Flow rate and pressure sensing
• Usage time
• Water quality monitoring