Brandtech-scientific Dispensette III Manual do Utilizador descarregar pdf (Página 48)

Cleaning

The cylinder, valves, telescoping filling tube and discharge tube contain reagent! Never

remove the discharge tube or the SafetyPrime

™

recirculation valve 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 autoclaving

The instrument must be cleaned in the following situations to assure correct operation:

■ prior to changing the valve

■ regularly when using liquids which form

deposits (e.g., crystallizing liquids)

■ regularly when liquids accumulate in the

screw cap

Note:

Never exchange pistons between instruments!

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 the

"dispensing" and “recirculating” setting.

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).

4. Pull out the recirculation tube and the telescoping filling tube.

For proper cleaning and removal of any deposits, the piston must

always be completely pulled out of the cylinder after rinsing.

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Brandtech-scientific Dispensette III Manual do Utilizador Página 48