Hanna Instruments HI 901 - Manual (Page 81)

5-41
METHODS
5.5.16.1 Fixed Weight or Volume
Each titration will use the same analyte weight or volume as preset in the calculations.
5.5.16.2 Manual Weight or Volume
Each titration will use a different analyte weight or volume. The titrator will prompt for the
analyte volume at the beginning of each titration.
5.5.17 Titrant 1 Entry (HI 902 only)
Select the mode for evaluating the necessary quantity of titrant 1 used in the back titration
process (phase 1).
5.5.17.1 Calculated by Formula
The volume of titrant 1 to be dispensed in the phase 1 of back titration will be calculated by
formula (see Calc. Direct Titr. Volume screen on page 5-35).
5.5.17.2 Fixed by User
Fixed volume of titrant 1 will be used during the first phase of back titration process (direct
titration).