Hanna Marine pH Checker Reagent (HI-780-25)

How To Use

1. Press the ON/OFF button to turn the checker on. All segments will be displayed for a few seconds, followed by “Add”, “C.1” with “Press” blinking.
2. Fill the cuvette with 10 mL of unreacted sample and replace the cap. Insert the cuvette into the checker and close the cap
3. Press the ON/OFF button. When the display shows “Add”, “C.2” with “Press” blinking, the checker is zeroed
4. Remove the cuvette. Unscrew the cap and add 5 drops of HI-780-25 pH reagent indicator. Replace the cap and invert 5 times to mix
5. Insert the cuvette into the checker and press the ON/OFF button. The instrument displays the result in pH. The checker automatically turns off 10 minutes after reading