BrandTech Scientific Dispensette TA - Manual (Page 39)

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39
Cleaning
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 ™ recirculation
valve, after rinsing the instrument, it must also be rinsed in the
“recirculating” setting (Fig. 3).
Cylinder, valves, telescoping filling tube and discharge tube contain reagent. Point the
valves and tube openings away from your body. Wear protective clothing, eye protection
and appropriate hand protection.
Warning!
■ before the first use
■ immediately when the piston
is difficult to move
■ before changing the reagent
■ prior to long term storage
■ prior to dismantling the instrument
The instrument must be cleaned in the following situations to assure correct operation:
■ prior to changing the valves
■ regularly when using liquids which form
deposits (e.g., crystallizing liquids)
■ regularly when liquids accumulate in the
screw cap
The instrument should not be autoclaved!
Cleaning for trace analysis see page 42.
Note: