Direct-Q® 3 Ultrapure Water Systems

Type I Water Instant Flow Rate Above 0.5 L/min

The Direct-Q 3 systems are designed for simple and intuitive operation. Water quality parameters (resistivity or conductivity, temperature) are clearly indicated on a bright color display. The Direct-Q 3 systems allow delivery of a fixed volume of Type I water and automatically shut off once the selected volume has been delivered.

The Type I product water is suitable for most low-volume laboratory applications, including the preparation of buffers for liquid chromatography separations and biochemical experiments, of solutions for analytical techniques such as spectrophotometry and spectroscopy, and of culture media.

For applications requiring very low organic contaminant levels, the
Direct-Q 3 UV system also incorporates a dual wavelength UV lamp to produce water with <5 ppb TOC, making it suitable for HPLC, GC, ILC and TOC analyses.

With the BioPak™ cartridge as a final filter, Direct-Q 3 systems produce pyrogen¬free, RNase-free water for cell culture and molecular biology applications.

Applications

   • Type I water for HPLC mobile phase preparation, sample dilution, buffer and cell culture media preparation, preparation of chemical solutions used with titrators, spectrophotometers and electrophoresis systems, preparation of culture media and reagents for molecular biology applications.
   • Type III water for low-volume non critical applications such as glassware washing or rinsing.

Features

   • Produce Type I ultrapure water (18.2 Ω·cm resistivity at 25 °C an < 10 ppb Total Organic
Carbon) on demand directly from potable tap water.
   • Available with a built-in 185 and 254 nm UV lamp for production of low TOC water required by organic-sensitive applications.
   • Produce Type III (Reverse Osmosis) water for basic lab applications at a flow rate of 2.4 L/hr at 15 °C. Type III water is easily available from the 6 L built-in reservoir.
   • Maintenance reduced to a simple cartridge change once or twice a year.
   • Ideal for laboratories that do not have easy access to pretreated water and need between 1 and 10 L of ultrapure water per day.
   • Alarm warning in case of a sudden drop in the quality of the product water.
   • Dispensing adapted to different size laboratory glassware.
   • Time-saving fixed volume dispense.

Compliance with Regulatory Standards

Systems are UL and cUL listed under file E216983 in the “Laboratory Use Electrical Equipment Category”, and meet the requirements of UL 61010 standards. Systems conform to European Union CE directives 89/336/CEE (electromagnetic compatibility) and 73/23/CEE (electrical equipment within certain voltage limits). All systems are manufactured in ISO 9001 and ISO 14001 certified environments.