MAINTENANCE
Milli-Q Synthesis/Synthesis A10 66
6-5 HOW TO SANITISE AND CLEAN THE UF CARTRIDGE
HOW OFTEN WOULD I NORMALLY SANITISE AND CLEAN THE UF CARTRIDGE?
The Milli-Q Synthesis and Milli-Q Synthesis A10 will show an LCD message ‘START SANIT.’ every 4 weeks (once
per month). The yellow Service LED will be blinking also. This message is based on a day-to-day timer.
THINGS TO KNOW BEFORE YOU SANITISE THE UF CARTRIDGE
1. You will need a minimum of a full 30 L Reservoir fed at 3 LPH (i.e. a full 30 L Reservoir fed with an Elix 3 or
RiOs 3).
2. You will need 3 grams of Sodium Hydroxide (NaOH) every time you sanitise the system. Do not use any
type of chlorine for the sanitisation. Millipore does not sell NaOH but it is readily available through most
Scientific Apparatus Supply Companies.
3. You will need the Barbed Fitting and clear Tygon Tubing from the Accessories Bag (the same items you used
when the Q-Gard Pack and Quantum Cartridge were air purged and hydrated).
4. The Milli-Q system will not be able to make Product Water for a minimum of 421 minutes while the UF is
sanitised and cleaned. It is best to plan to perform the Sanitisation of the UF Cartridge during an overnight or
weekend time frame.
SANITISING AND CLEANING THE UF CARTRIDGE
Place the Milli-Q into STANDBY Mode. See Section 5-1 if you need further instructions on how to do this. A
click will be heard and water will flow for a few seconds out of the UF Reject tubing.
While in STANDBY Mode, move the POU Dispenser Trigger forward. This will open the electric valve inside
the POU Dispenser. Any residual water pressure will be released. Allow any water to flow from the
POU Dispenser in STANDBY Mode. Move the POU Dispenser Trigger back to the upright position.
Locate the Removal Tool from the Accessories Bag.
Locate the Sanitisation Port Cap on the top of the Milli-Q system. It is located towards the back top end of the
system cabinet.
Unscrew the cap using the Sanitisation Port Removal Tool found in the Accessories Bag. Place 3 grams of
Sodium Hydroxide crystals (pellets) in the Sanitisation Port.
Screw the cap back on. Do not use the Removal Tool to tighten the Sanitisation Port Cap. It may overtighten it.
There are 2 rubber O-rings which provide a seal to prevent water leakage. Handtighten the cap until it
will not turn any further. If the cap is overtightened, then it may become very difficult to remove it later for
the next Sanitisation. If the cap is not tight enough, then there may be a leakage of caustic NaOH solution out
of the Sanitisation Port.
!
HAZARD
Sodium Hydroxide will form a caustic (high pH)
solution when mixed with water. This solution can be
To Next Page
Loading...
