Hanna Instruments HI83300 Instruction Manual page 157

• Press the Zero key. The display will show "‑0.0‑" the meter is zeroed and ready for
measurement.
• Remove the cuvette.
• Add one packet of HI93757‑0
the cap and shake gently for 20 seconds.
• Replace the cuvette into the instrument and close the lid.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively,
wait for 2 minutes and press Read. When the timer ends the meter will perform the reading. The
instrument displays the result in mg/L ozone (O
Note: For samples containing chlorine, record this value as A.
ADDITIONAL MEASUREMENT PROCEDURE
For samples containing chlorine
• Fill the cuvette with 10 mL of unreacted sample (up to the mark).
• Place the cuvette into the holder and close the lid.
Ozone Reagent. Replace
) (chlorine free sample only).
3
10 mL
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