Three models are available in the range: Analytical, featuring a low TOC specification; Life Science, offering low bacteria, endotoxins and RNases/DNases specification; and Ultimate, which combines the benefits of both the Analytical and Life Science models. Each unit produces between 1.5 and 2 litres of ultra-pure, 18.2MΩ.cm, purified water per minute from a feedwater source of <20μS/cm.
The range utilises a number of proven technologies to produce ultra-pure, 18.2MΩ.cm water, including:
•Ion exchange cartridges incorporating monospherical, semiconductor grade mixed bed deionising resin with a low TOC leaching profile and a high activity organic absorption media.
•A 0.2μm filter and 0.05μm microfilter (Life Science and Ultimate) to remove particles, bacteria and endotoxins.
•185nm or photo-oxidising UV to cleave organic compounds into smaller charged ionic species that can be removed by ion exchange (Analytical and Ultimate).
•254nm UV to reduce bacteria by more than 99%.
All Neptune models recirculate purified water to maintain its quality and include data capture for traceability and intelligent monitoring systems that place the unit into standby when it’s not in use. They also feature semi-automated cleaning and sanitising routines, TOC indication and alarms for cartridge, UV and filter replacement.