Calibration; Settings; Select A Fixed Buffer Group; Set A User-Defined Buffer Group - Mettler Toledo SevenEasy S20 Bedienungsanleitung

6.

Calibration

6.1

Settings

The SevenEasy pH meter allows you to perform 1-, 2- and 3-point calibrations. If you select your calibra-
tion buffer group from the 4 fixed groups defined in the meter, the buffers are automatically recognized
during calibration (auto buffer recognition).
The 4 fixed buffer groups are:
B1: (25 °C)
B2: (25 °C)
B3: (20 °C)
B4: (25 °C)
You can also follow the buffer setting procedure below to define your own buffer group, but in this case
the auto buffer recognition will not work during calibration.
6.2 Select a fixed buffer group
Press the key, the current buffer group starts blinking. If the current setting is the user-defined group,
the blank frame blinks.
Use the or key to select other groups in the upper or lower position. When the desired buffer
group blinks, press
6.3 Set a user-defined buffer group
In step 6.2, when the blank frame blinks, press
temperature value setting and the dot and frame blink (default temperature is 25 °C). Use
key to change the value. Press
After setting the temperature value, the meter displays the current setting of the first calibration buffer (default
value 4.00). Use or
After setting the first calibration buffer, press
The procedure is the same as for the 1st point.You can set up to 3 user-defined calibration buffers. When
you have completed your settings, press
Note
When using a user-defined buffer group in the calibration, the screen will display the buffer value you
set. Make sure that you are using the correct buffer. You should also keep the buffer temperature at the
set value. When a temperature probe is used, if the temperature measured differs by more than 1 degree
from the set value, Err 5 appears.
METTLER TOLEDO SevenEasy
7.00 4.00 10.01
7.00 4.01
7.00 4.00
6.86 4.01
to confirm your selection.
to store the value and continue.
key to change the value. Press
to start setting the next point.
to exit.
1.68
9.21 2.00 11.00
9.00 2.00 12.00
9.18 1.68
to start setting. The meter displays your current
to store the value and continue.
Calibration
or
9