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Manual PRO50-150 V.2
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 program by error, exit it by pressing "OK"
several times. The error message is shown and the previous calibration remains
unaltered.
4.1.6.5- 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".
4.1.6.6- Priming the pump.
Once the acid pump has been installed, it should be primed to eliminate the
installation air.
Go to the "pH" menu and select "Manual". Keeping the "OK" button pressed,
the pump will be running. Keep the pump running with the "OK" button until
the liquid has passed throughout the tube until injection.
4.1.6.7- Acid - Alkaline
Access the configuration menu of the equipment to pass the pH control from
acid to alkaline. To do this, press "OK" in the main screen, in configuration "S"
press button
until reaching the ACID line. Press "OK" and the letter "N" will
appear with the arrow
. Select “S” to remain in the ALKALI screen.
