Hanna Instruments HI 98186 - Manual (Page 18)

18
BOD evaluation
From the BOD measure screen press Compute to evaluate the BOD for a
specified sample. The following screen will be displayed.
If the date of the current measurement is previous to the date of the selected
measurement then the Eval. BOD key will not be displayed.
Press MORE to view detailed information for the selected record.
Use ARROW keys to select the bottle for BOD evaluation.
Press Eval. BOD to compute the BOD for the selected bottle. If the time
difference between the current reading and the selected reading is less than
1 day the instrument will ask for record replacement confirmation, and the
BOD can’t be evaluated.
Press CFM to replace the selected record’s DO, temperature, pressure and
salinity values with the current values.
Press ESC to return to the previous screen without replacing.
If the conditions regarding the time difference are met, after pressing the
Eval.BOD key, the instrument will display the computed BOD value.
Press LOG to save the BOD result.
Press ESC to return to the BOD measure screen.
If the final DO reading or DO loss don’t meet the criteria for BOD measure-
ments set from the instrument’s setup, a warning message will be displayed.