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Manual PRO50-150 V.2
A proportional control automatically adjusts the pH without the need for
controller adjustments. The pump will start up every minute and with a variable
operation time of between 0 and 60 seconds.
ATTENTION: It is required to do a pH probe calibration during the
equipment installation. New calibration should be done on changing
or cleaning the probe.
4.1.6.2- Access to the pH Menu
You can access the pH menu from the main menu by pressing
OK
4.1.6.3- pH Adjustment
Go to the main menu, select "pH" and in the pH menu that is displayed, select
“pH +
-
”
Use the buttons
to adjust the required pH and confirm with "OK".
4.1.6.4- Calibration of the pH probe
To calibrate the probe, prepare a glass with clean water. Remove the probe
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
