Product Description
Operating Instructions Arium
®
Comfort I, Comfort II 9
The Arium
®
Comfort systems from Sartorius combine the production of
pure and ultrapure water in a single system. Directly connect the systems
to the potable water and purify the water in two stages. In the first stage,
an Arium
®
Comfort I system produces Type 3 pure water (reverse osmosis
water), and in the second stage, ASTM Type 1 ultrapure water. In the first
stage, an Arium
®
Comfort II system features built-in EDI technology
(electrodeionization) and produces Type 2 ultrapure water. In the second
stage, the system is identical to an Arium
®
Comfort I and produces ASTM
Type 1 ultrapure water. In the following, the first purification stage for both
Arium
®
Comfort systems will be referred to as pure water purification and
the second stage as ultrapure water purification.
Since the ultrapure water purification system achieves higher flow rates
than the pure water purification system, an Arium
®
Bagtank must be
installed as a buffer storage between the two stages. The Arium
®
Bagtank is
described in a separate manual.
The figures on the next page show the flow diagram of an Arium
®
Comfort I
and II system. At the system inlet, a measuring cell measures the conduc-
tivity of the feed water (LFF). Next, the water is pumped by a membrane
pump through a prefilter cartridge and the RO modules (reverse osmosis
modules). Arium
®
Comfort systems can be optionally equipped with one or
two RO modules. Each RO module has two outlets: one for permeate and
one for concentrate flow. The concentrate flow is connected to the outlet
(drain) of the system. While the first stage fills the tank, water drains out at
the outlet. The permeate flow contains the purified RO water. A conductivity
measuring cell (LFR) monitors the quality of the RO water.
An Arium
®
Comfort II system additionally contains a softener cartridge, EDI
module and a second conductivity measuring cell (LFA). This measuring
cell tests the quality of the EDI water. For technical reasons, on both the
EDI module and the RO modules, some of the water is discarded during
purification. Next, the ultrapure water produced by the Comfort I and | or
Comfort II is pumped into the Arium
®
Bagtank. There, the water can be
dispensed directly for further use in ported equipment (e.g. autoclaves) or
for manual dispensing (e.g. via an optionally supplied remote dispenser).
In the next step, another pump pumps the pretreated water (ultrapure
water) from the Arium
®
Bagtank into the ultrapure water purification system.
Here, the ultrapure water is further purified to ultrapure water by a UV
lamp and a cartridge filled with activated carbon and ion exchangers. A
measuring cell (LFP) measures the conductivity of the ultrapure water. The
TOC (total organic carbon) content is monitored by an optionally available
TOC monitor.
To guarantee ultrapure water of consistent and high quality, the ultrapure
water purification system is constructed like a circulation ring. If no water
is dispensed, the water circulates through the UV lamp and the cartridge.
The last purification step before dispensing is to run the water through a
final filter. Besides dispensing via the display screen, the Arium
®
Comfort
system also features the option of dispensing its ultrapure water through an
optionally available remote dispenser.
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