pH Wireless Ver.21-7 11
Insert the probe in the 4 pH buffer calibration, remove it slightly with the probe and
wait for a stable reading value to be reached.
Once the reading value has stabilized press
OK
key to save calibration and exit.
Then, remove probe from the pH4 buffer solution, rinse its bottom with clean water
and shake gently to remove an excess of water.
Repeat the process above with the pH7 buffer solution and submenu “
3 Cal pH 7”
Note:
During calibration, if value measured by the probe, differs in more than 2 units
from the theoretical of the buffer solution (pH4 and pH7), data calibration won´t be
saved and it will go back to factory values. For example, if the reading value is 6,05
while calibrating with pH4 solution.
4. Factory calibration
pH Configuration
5 Factory calib.
In submenu
5 Factory calib
,
gives you the possibility to reset general calibration pa-
rameters to default values that correspond, approximately, with those of a regular
brand new probe. This can be useful if you have saved successive calibrations or do
not have the buffer solutions for a proper calibration.
Press
OK
to enter the sub menu
5 Factory calib,
it will show the following screen.
Factory calib?
Yes:OK Exit:MENU
Press
OK
to confirm or
MENU
to exit.
