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Functional Description
Dionex IC Pure system without pretreatment
cartridge
ASTM Type II water is recirculated throughout the unit with a pump to the UV bulb, ultrapure
cartridge and an ultrafilter. The purity of the water's conductivity/resistivity and TOC is monitored
with sensors in the unit. ASTM Type I water can be sampled two ways from the unit: 1. manually
through main dispenser and 0.2 µm final filter and 2. automatic dispensing from two points on
Dionex IC Pure system to an external IC system. The unit is designed such that water can be taken
from both sampling points simultaneously.
Dionex IC Pure system with pretreatment
cartridge (Optional)
Using the pretreatment cartridge (activated carbon/reverse osmosis membrane) allows the system
to be fed with potable tap water. The concentrate (waste) water must be routed to drain. Potable
water must first be filled manually into the internal 5 L or external 20 L tank for operation of the unit.
After the water is pumped through the pretreatment cartridge, it is then recirculated throughout the
unit to the UV bulb, ultrapure cartridge and an ultrafilter. The purity of the water's
conductivity/resistivity and TOC is monitored with sensors in the unit. As the concentrate discharge
from reverse osmosis is routed into the tank, the ion concentration in the tank increases. This is the
reason that the tank must be drained when at a level of 30% and when new potable water filled into
the tank. ASTM Type I water can be sampled two ways from the unit: 1. manually through main
dispenser and 0.2 µm final filter and 2. automatic dispensing from two points on Dionex IC Pure
system to an external IC system. The unit is designed such that water can be taken from both
sampling points simultaneously.
Thermo Scientific
Dionex IC Pure system | 55
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