21
Marine pH
7. METHOD PROCEDURE
7.1. MARINE pH
REQUIRED REAGENTS
Code
Description
Quantity
HI780‑0
Marine pH Reagent
5 drops
REAGENT SETS
HI780‑25
Marine pH Reagent
100 tests
For other accessories see Accessories section.
MEASUREMENT PROCEDURE
Select the
pH 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.
• Add 5 drops of
HI780‑0
Marine pH Reagent indicator. Replace the
plastic stopper and the cap. Invert 5 times to mix.
• 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
pH
.
10 mL
×
5
