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vwr.com I Instruction manual VWR® U Water System
5.4 Replacing Consumables
Consumable life, in particular cartridges, is heavily dependent upon feed water quality and amount
of water used. Below is a general guideline of frequency to replace consumables
.
Consumables
Replacement
Frequency
Performance Indicator
P Pack & AC Pack
6 months
May cause irreversible scaling
and oxidation of RO membrane.
Dual UV lamp
24 months
Increase in TOC
Final Filter
Remove bacteria
and particles
12 months
Reduce in flow rate
When needed
Flow rate is less than 1 liter per
minute
H Pack & U Pack
Polishing pure
water
When needed
or 12 months
Reduce in resistivity of ultrapure
water
Bio-filter
Removes
pyrogen, RNases
and DNases
3 months
Increased pyrogen, RNases
and DNases levels
System administrator can set Permission for cartridge replacement in Maintenance Menu. System
default is OFF. If the
Verification
is
On
, User need to enter a name to verify the installation. Only
authorized Users registered in the system are allowed to install or replace consumable.
The following consumables RFID tags need to be scanned on the on RFID scanner at the AC-Pack
location to register: RO Pack, T Pack (Optional), 185 nm UV lamp, UV sanitization module and final
filter in their corresponding box to register the consumables. Tap
Install
when a pop-up dialog is
appearing if the
Verification
is
Off
.
