Cleaning; Standard Cleaning - BRAND Dispensette TA Operating Manual

The instrument must be cleaned in the following situations to assure correct operation:
I before the first use
I immediately when the piston
is difficult to move
I before changing the reagent
I prior to long term storage
I prior to dismantling the instrument
The instrument should not be autoclaved!
Cylinder, valves, telescoping filling tube and discharge tube contain reagent. Point the
Warning!
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
SafetyPrime ™ 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 SafetyPrime
valve, after rinsing the instrument, it must also be rinsed in the
"recirculating" setting (Fig. 3).
Note:
Cleaning for trace analysis see page 42.
I prior to changing the valves
I regularly when using liquids which form
deposits (e.g., crystallizing liquids)
I regularly when liquids accumulate in the
screw cap
1
3
™
recirculation

Cleaning

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