PURELAB Ultra Mk2
Operator Manual
ELGA
Page 4
PURELAB Ultra Mk 2 Version 3 11/08
3.2 Process
Description
Scientific
Pre-treated water enters via an inlet solenoid, and is pumped
through the primary purification pack, an intermediate water
quality sensor, a polishing purification pack and final
temperature and water quality sensors before being
dispensed or re-circulated through a non-return valve back to
the pump inlet.
The first purification pack removes most of the impurities
from the water. The intermediate water quality sensor
measures the resistivity of the water from the first pack and
initiates an alarm when the pack needs to be replaced.
Any remaining ionic and organic impurities are removed by
the second polishing purification pack. Product water
resistivity and temperature are measured before dispense.
The water within the unit is re-circulated through the
purification technologies to maintain purity. To minimize heat
build up the recirculation is at reduced flow rate and can be
set to be intermittent (10 minutes every hour). Similarly,
intermittent recirculation can be used overnight in 'sleep
mode'.
An optional POU filter is available if required to protect the
outlet from bacterial contamination.
Solenoid
Valve
NRV
Feedwater Inlet
(Pre-purified Water)
Pump
Solenoid Valve
Drain
Purified Water
Outlet
Primary
Purification
Pack
Polishing
Purification
Pack
0.2µm Point-of-use Filter
(Optional)
Dispense Controller
Outlet Water
Quality Sensor
Temperature
Sensor
Intermediate
Water Quality
Sensor
Solenoid Valve
Содержание PURELAB Ultra Mk 2 Scientific
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