Cleaning - Vitlab TA2 Operating Manual

12. Cleaning

The instrument must be cleaned in the following situations to assure correct operation:
I before the first use
immediately when the piston
I
is difficult to move
before changing the reagent
I
I prior to long term storage
prior to dismantling the instrument
I
The instrument should not be autoclaved!
Warning!
Cylinder, valves, telescoping filling tube and discharge tube con-
tain reagent. Point the valves and tube openings away from your
body. Wear protective clothing, eye protection and appropriate
hand protection.
Standard Cleaning
1. Screw the instrument onto an empty bottle and empty it com-
pletely by dispensing (Fig. 1). If the instrument is equipped with a
recirculation valve, it must be emptied in both the "dispensing"
and 'recirculating' settings.
2. Screw the instrument onto a bottle filled with a suitable cleaning
agent (e.g. deionized water) and rinse the instrument several
times by completely filling and emptying it.
3. If the instrument is equipped with a recirculation valve, after
rinsing the instrument, it must also be rinsed in the 'recirculating'
setting (Fig. 2).
Note:
'Cleaning for trace analysis' see page 42.
I prior to changing the valves
regularly when using liquids which form
I
deposits (e.g., crystallizing liquids)
regularly when liquids accumulate in the
I
screw cap
1
2
41