ELGA
PURELAB Ultra Mk 2
Operator Manual
PURELAB Ultra Mk2 Version 3 11/08
Page 7
Ionic
Pre-treated water enters via an inlet solenoid and is pumped
through the primary purification pack and an intermediate
water quality sensor. The water then flows through a UV
chamber, a further resistivity and temperature sensor, a
polishing purification pack, an ultra microfilter 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.
Purified water flows directly through the UV chamber where it
is exposed to intense UV radiation at a wavelength of 254nm
to provide continuous bacterial control.
Any remaining ionic and organic impurities are removed by
the second polishing purification pack; the ultra microfilter
removes bacterial impurities and particles. 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 reduce 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.
Feedwater Inlet
(Pre-purified Water)
Solenoid
Valve
Pump
NRV
Solenoid Valve
Drain
Primary
Purification
Pack
Polishing
Purification
Pack
UV Lamp
UMF
Intermediate
Water Quality
Sensor
Outlet Water
Quality
Sensor
Temperature
Sensor
Solenoid Valve
Dispense Controller
0.2µm Point-of-use Filter
(Optional)
Purified Water
Outlet
Содержание PURELAB Ultra Mk 2 Scientific
Страница 4: ......