Dupla pH-Control Pro - Calibration Reminder Function; Timer Programming; Setting the Timer Control Mode

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5.2.6 Calibration reminder function
pH
pH
pH
The factory presetting is an activated visual calibration reminder alarm.
If you want to keep it, press
for 3 seconds when CAL and flashes to leave the programming sublevel.
If you want to deactivate the calibration reminder, select
with the ▲ or ▼ button and acknowledge with .
When SET flashes again, press three seconds to leave the sub sub level.
When
pH flashes again scroll with the ▼ buttons to Time to proceed programmation or press for three
seconds to return to operating mode.
Please note: The audible alarm for pH and calibration reminder can not be separated. If the audible pH alarm
is deactivated, the audible calibration reminder alarm is deactivated as well. The optical alarm is not affected
from that.
5.3 Timer programming
5.3.1 Setting the timer control mode
pH
pH
pH
Time flashes.
To choose between the three control options press , (Automatic) will flashin the display
If you want to operate slot 2 with programmed turn-on and turn-off times, press when flash. Proceed
entering your settings as in item 5.3.2 of the instructions.
If you want to operate slot 2 via interval control, use the ▲ button to select
and confirm by pressing the
button. Proceed making your settings with item 5.3.3 of the instructions.
If you want to have slot 2 permanently activated, use the ▲ to select and press . When Time flashes again,
press
for three seconds to finish programming and return to the operating mode.