Eppendorf Top Buret M / H - Manual (Page 30)

30
Calibration and adjustment
Top Buret
™
English (EN)
3. With the Top Buret M, titrate 25 mL of the test liquid into the beaker and
record the weight.
4. Repeat step 3 10 times.
5. With the Top Buret H, titrate 50 mL of the test liquid into the beaker and
record the weight.
6. Repeat step 5 10 times.
9. Press the Pause key.
The volume is saved.
10.Press and hold the and arrow keys at the same time for 3 seconds.
The display shows CAL at the top right
11.Set the calculated average value of the volumes using the and arrow
keys.
12.Press the Start key.
• The set value is accepted
• The display is reset to zero
• The adjustment is ended
• The display shows
C at the top right. The display indicates that the factory
settings have been changed.
6.3 Resetting the Top Buret to the factory settings
The reset function is used to restore the factory settings. If you have adjusted the
device, the display will show a
C . When you restore the factory settings again,
the C will disappear.
1. Press the Start key to switch on the Top Buret.
2. Press and hold the Start and keys at the same time for 3 seconds to activate
the reset function.
• The display C disappears.
• The factory settings have been restored.
7. Calculate the volume of the standard solution.
8. Calculate the average value of the volumes.
V = ρ
m
V = 1/n V
i
∑
n
i = 1