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1 Switch eld "Settings" (the way to all possible settings)
2 Status line Alarm with adjusted limit values for pH and temperature
3 Status line Hysterese (Hysteresis) with adjusted value
4 Actual pH value (current pH value in bu er or in your aquarium)
5 Status line Auto pH with adjusted KH (Carbonate Hardness)
6 Current temperature (in illustration ashing read in the alarm status)
7 Valve status
8 Time to calibration (days/hours)
9 Sensor voltage in mV
10 Actual precision of measurement (re-calculated for each calibration)
11 pH set point (required pH value, controlled by device through CO supply)
12 Warning triangle (will ash a warning, while the actual value ashes in red)
13 Key lock (unlocked in illustration)
pH set point adjustment
If you are using a pH computer for the rst time, we strongly recommend the initial use of
the auto pH function to adjust the pH set point:
Touch the switch eld "Settings" and select the menu point "Auto pH" by tapping on the
arrow symbols. Con rm with "OK". Enter the present KH value of your aquarium water by
pressing the elds "plus" or "minus". Con rm with "OK". Measure by all means the KH level in
your aquarium by means of a KH test, such as the JBL KH test kit.
The device now calculates the optimal pH value for this KH and saves it as set point. Based on
the calculation is a CO content of 22.5 mg/l, which is considered as optimal.
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