Hanna Instruments HI931 - Purge Burette for Cleaning

10-5
AUXILIARY FUNCTIONS
Use the numeric keypad to enter the volume to be dispensed.
The manual dispense volume must be between the limits shown below:
0.001 to 4.750 mL for a 5 mL burette
0.001 to 9.500 mL for a 10 mL burette
0.005 to 23.750 mL for a 25 mL burette
0.005 to 47.500 mL for a 50 mL burette
10.1.4. PURGE BURETTE
This option allows the burette to be emptied 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.