T
Thermo Fisher Barnstead
Pacific AFT
Pure water system
27
13.1.4 Pretreatment operating hours:
A fourth press on the menu-key brings the operating hours of the pretreatment cartridge to
display in this menu.
The limiting value for this operating time is set in the UV menu. The fault message that is
displayed when the limiting value is exceeded is “
Pretreatment
”.
The operating hours of the pretreatment are counted when the reverse osmosis pump is
running.
The display shows:
Pretreatment
0000 h
13.1.5 Cleaning:
A fifth press on the menu-key allows cleaning to be carried out whenever there is a need for
it. The cleaning process is triggered by pressing the Enter-key. The pump then starts and the
inlet solenoid valve and the rinsing solenoid valve open for a period of 60 seconds.
During cleaning, no faults or measured values are displayed. When the cleaning process has
finished, the system returns to the last operating state (operation or stand-by)
The remaining cleaning time is displayed while cleaning takes place.
The display shows:
Rinse ?
Press enter
During cleaning, the display shows
Rinse
30 sec.
