| Maintenance
50
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Puranity TU+ VWR
Chapter 13
Please note that the lifetime of the wear parts is a direct function of the quality of the feedwater
and the daily volume of water that is used.
Replacing the ultrapure cartridge
NOTE!
Replace the ultrapure cartridge with a new one when the ultrapure water conductivity is purity
dropped below acceptable levels or the replacement interval is due.
Material Flow chart no. Cat. No.: Interval Other problems
Ultrapure
cartridge
F1 171-1141 12 months Or when the pure water limit value is
exceeded, whichever occurs first. Bacteria
growth may occur in the resin when the
system has been in use over an extended
period.
Sterile filter 0.2
µm
F2 171-1105 12 months Or the flow rate is markedly slower
Ultrafiltration
membrane (UF)
F3 171-1106 24 months Or if there is endotoxin breakthrough in
product water or when the water flow rate is
markedly slowler.
UV lamp UV1 171-1108 24 months Or when UV lamp does not light.
RO/pretreatment
cartridge
F6 171-1142
171-1143
171-1165
12 months Or when the ultrapure cartridge has shorter
life time than excepted.
Step Action Figure
1 Switch the system off (unplug main
power supply).
2 Remove the cover from the ultrapure
cartridge by press the snapper and
pull the cover toward the front to
remove it.
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