Dupla MultiControl Directions For Use Manual - Page 12

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5.8

Setting pH Alarm

Press the "Menu" key, "0.5" fl ashes.
Set the required value with the ▲ or ▼ key.
Acknowledge with "Menu", "Off" will fl ash.
To activate the pH alarm, set the display to "On" with the ▲ or ▼ key.
Acknowledge with the "Menu" key to return to the main menu.
Scroll through to the next menu item with the ▲ key.
5.9

Calibrating pH Electrode

1. Connect the pH electrode to the MultiControl and remove the protective cap from the electrode tip.
2. Rinse electrode tip briefl y with Dupladest.
3. Press the "Menu" key – "7" appears at the top left of the display.
4. Dip the electrode into the pH 7 solution. When the displayed measurement has settled, press and hold the
"Menu" key (until long beep) to accept value; "7" is displayed.
5. Rinse electrode tip briefl y with Dupladest.
6. Press the "Menu" key – "4" will fl ash. When calibrating the electrode for freshwater aquaria, acknow-
ledge with "Menu", "4" will stop fl ashing. For saltwater aquaria use the ▲ or ▼ key until "9" fl ashes at
the top and acknowledge with "Menu", "9" will stop fl ashing.
7. Dip the electrode into the pH 4 solution for freshwater calibration or into the pH 9 solution for saltwater
calibration. When the displayed measurement has settled, press and hold the "Menu" key (until long
beep) to accept value; "4.00" for freshwater calibration or "9.00" for saltwater calibration is displayed.
Press "Menu" to return to the main menu.
8. Rinse electrode tip briefl y with Dupladest.
9. Fix electrode in the aquarium with suction cups.
10. Scroll through to the next menu item with the ▲ key.
The calibration can be interrupted at any time by pressing the ▲ or ▼ key at the same time.

5.10 Setting Calibration Memory

Press "Menu" key, "On" display fl ashes.
Set key to "Off" with the ▲ or ▼ key to turn off memory function.
Acknowledge with "Menu" to return to the main menu.
Scroll through to the next menu item with ▲ key.
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