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C. Gerhardt GmbH & Co. KG
7.2.2. Time / Date
This function sets the time (24 hour mode) and date. Usually, an adjustment is only necessary during
the configuration of the apparatus. Be aware, that the correct time and date are important for all
statistics, data and printouts.
1. Press key "Time/Date".
The time is displayed: hour minute
The date is displayed: day month year
2. Address the input field with the cursor "up" or "down" and write in it with the numerical keys.
3. By pressing "Enter" you return to the main menu and the data entered is stored.
7.2.3. Titration adjustment
The user has the option to work with a T-factor which he can select at his wish or a titration table,
which he can also select at his wish. The titration table may speed up the titration.
1. Using the cursors 'up' or 'down' you can address the respective entry form and using the nu-
meric keys make your input.
7.2.3.1. Selection of T-Faktor
It can be set between 0.1 - 9.9. The manufacturer has set it to 1 as this value is perfect for most
titrations.
The setting of the titration is in accordance with a 2 % boric acid. If a boric acid solution is weaker
values > 1 are to be inserted, to avoid an over-titration. Should a boric acid solution be stronger, then
values <1 are to be inserted to optimize the duration of the titration.
Should a boric acid solution be stronger, then values <1 are to be
7.2.3.2. Selection of Tabelle
The function of the table can be set at 0 -3:
0 = the function of the table is not active, 1 - 3 = table can be selected
After selection a table number the following window is displayed on the screen:
1. Using the cursor 'left' or 'right' you can address the respective entry form and using the nume-
ric keys make your input.
2. Confirm input using the key 'Enter', then, the next lower pH difference is shown on the display.
3. After confirming all further steps with 'Enter' you can print the data of the table. Upon completi-
on of the print out, press 'Enter' to terminate the programming.
SPECIAL FUNCTIONS
01 1st step, altogether 12 steps, firmly
allocated
Delta pH PH-difference to the endpoint, firmly
allocated
Delay Time to the next dosing step can be
chosen between 1-99 sec
Step Amount of standard solution can be
chosen between 0.05 - 9.95 ml
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