Hanna Instruments HI 903 - Manual (Page 111)

7-5
AUXILIARY FUNCTIONS
To prime the burette, select Prime Burette from the Burette screen. Enter the number of
rinses and press .
The number of burette rinses can be set between 1 and 5 (we recommend at least three
rinses to assure that the air bubbles are completely removed).
7.2.2 Rinse Tip
A 0.25 mL dose of titrant will be dispensed from the burette when this operation is selected.
This operation will eliminate any contamination from the anti-diffusion dispensing tip.
7.2.3 Manual Dispense
Manual Dispense allows a defined titrant volume to be be dosed. Select the Manual Dispense
option and press . The Manual Volume Dispense screen will become active and the
display will prompt you to enter the desired volume to be dispensed.