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• Press Zero. The display will show "-0.0-" when the meter is zeroed and ready for measurement.
• Remove the cuvette.
• Add 4 drops of
Replace the plastic stopper and the cap. Swirl to mix the solution.
• Insert the cuvette into the holder and close the lid.
• Press Timer and the display will show the countdown prior to the measurement or wait 3 minutes
and 30 seconds and press Read. When the timer ends the meter will perform the reading. The
instrument displays the results in mg/L of ammonia nitrogen (NH
• Press the or key to access the second level functions.
46
46
46
HI93733A-0
Ammonia High Range Reagent A.
×4
-N).
3
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