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• After a few seconds, the display will show “-0.0-”. The meter is now zeroed and ready for
measurement.
• Press ZERO/CFM and the lamp, cuvette and detector icons will appear on the display, depending
on the measurement phase.
• Add the content of one packet of HI93701‑0 Free Chlorine reagent. Replace the cap and shake
gently for for 20 seconds.
• Remove the cuvette from the instrument. Remove the cap.
• Replace the cuvette into the cuvette holder and ensure that the notch on the cap is positioned
securely into the groove.
MEASUREMENT PROCEDURE
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