Hanna-instruments HI 901 Manual do Utilizador descarregar pdf (Página 105)

8-5

AUXILIARY FUNCTIONS

The manual dispense volume must be between the limits shown bellow:

0.001 to 4.500 mL for a 5 mL burette

0.001 to 9.000 mL for a 10 mL burette

0.005 to 22.500 mL for a 25 mL burette

0.005 to 45.000 mL for a 50 mL burette

8.1.4 Purge Burette

This option allows titrant evacuation before cleaning and/or storing the burette. The burette

is flushed twice.

Note: Before starting this operation, remove the aspiration tube from the titrant bottle.

The figures below show the steps in a purge burette operation.

8.2 Stirrer

The stirrer can be started and stopped by pressing .

The stirring speed is set within the active methods (see section 5.5.17 Stirring Speed).

During the process, the stirring speed can also be manually adjusted by using the and

keys.

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Hanna-instruments HI 901 Manual do Utilizador Página 105