Hanna Instruments HI97105, Instruction Manual, Page: 22 / 40

Marine Alkalinity 22
7.2. MARINE ALKALINITY
REQUIRED REAGENTS
Code
Description Quantity
HI772S Marine Alkalinity Reagent 1 mL
REAGENT SETS
HI772‑26 Marine Alkalinity Reagent 25 tests
For other accessories see Accessories section.
MEASUREMENT PROCEDURE
Select the Alkalinity Marine method using the procedure described in Method Selection section.
Note : If tutorial mode is disabled, follow the measurement procedure below. If the tutorial mode is enabled, press
Measure and follow the messages on the screen.
• Fill the cuvette with 10 mL of unreacted sample (up to the mark).
Replace the plastic stopper and the cap.
• Insert the cuvette into the holder and ensure that the notch on the cap is
positioned securely in the groove.
• Press Zero . The display will show “‑0.0‑” when the meter is zeroed and ready for measurement.
• Remove the cuvette.
• Use a 1 mL syringe and add 1 mL of
HI772S Marine Alkalinity Reagent to the sample.
• Replace the plastic stopper and the cap. Invert 5 times to mix.
Note : Pay attention not to spill reagent otherwise full color development may be inhibited.
• Insert the cuvette into the holder and ensure that the notch on the cap is positioned securely in the groove.
• Press
Read to start reading. The instrument displays the results in degree KH (dKH) .
10 mL
1 mL