BSV BSsalt-10 Manuel De L'utilisateur page 81

from the storage liquid, shake off the liquid and stir it in the water. Shake it
again to remove the water. Dry with a clean cloth, without rubbing.
In the control, go to "Menu" – "pH" – Calibration. The 1st line of the display
indicates "pH cal. = 7" . Submerge the probe in the pH7 standard solution and
stir for a few seconds. The second line of the display indicates the measured
value of pH. Wait until the reading stabilizes and then wait for at least one
more minute. Press the "OK" button.
The first line of the screen now asks you to use the pH4 standard solution.
Remove the probe from the first solution, shake it and pass it through the
water. Remove this water by shaking the probe again. Finish rinsing it gently
with a clean cloth, without rubbing. Submerge it in the pH4 standard solution.
Wait until the reading stabilizes and then wait for at least one more minute.
Press the "OK" button. The message "Calibration OK" will appear.
Press "OK". If an error message appears, it could be because a probe is dirty
(see maintenance) or faulty, or because of contaminated standard solutions or
a faulty connection. Carry out two calibrations for a better reading of pH.
If you have entered the calibration programme by error, exit it by pressing "OK"
several times. The error message appears and the previous calibration remains
unaltered.
4.2.6.5- Switching the pH adjustment on and off
To switch off or start-up the pH control again stopping the acid pump, access
the main menu, select "pH" in the last line. In the pH menu select the bottom
line. By pressing "OK", it alternatively passes from "pH ON" to "pH OFF".
When the pH control is off, the 3rd line of the screen displaying the parameters
indicates "pH OFF".
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Manual EVO v.3