20
HI9
57
71A
-0
HI9
57
71B
-0
• 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
HI95771A‑0
Chlorine Ultra HR reagent A.
• Remove the cuvette from the instrument. Remove the cap.
• Add the content of one packet of
HI95771B‑0
Chlorine Ultra HR reagent B. Replace the cap
and shake gently for 20 seconds.
MEASUREMENT PROCEDURE