BrandTech Scientific seripettor - Manual (Page 40)

2
Cleaning
1.
Screw the instrument onto an empty bottle and empty it com-
pletely by dispensing.
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.
The cylinder, valves, filling tube and discharge tube contain reagent! Never remove the discharge tube
while the dispensing cylinder is filled. Point the valves and tube openings away from your body. Wear
protective clothing, eye protection and appropriate hand protection.
Warning!
■ immediately when the piston is difficult
to move
■ before changing the reagent
■ prior to long term storage
■ prior to dismantling the instrument
■ prior to changing the valve
The instrument must be cleaned in the following situations to assure correct operation:
■ prior to autoclaving
■ regularly when using liquids which form
deposits (e.g., crystallizing liquids)
■ regularly when liquids accumulate in the
stopper cap
40