13
• When the beeper sounds briefly and the
LCD displays dashes, the meter is ready.
The blinking
“ZERO”
indicates that the
instrument needs to be zeroed first.
• Fill one cuvette with 10 mL of unreacted
sample, up to the mark.
• Place the cuvette into the cuvette holder
and ensure that the notch on the cap is
positioned securely into the groove.
• Press
ZERO/CFM
and the lamp, cuvette
and detector icons will appear on the
display, depending on the measurement
phase.
• After a few seconds, the display will
show
“-0.0-”
. The meter is now zeroed
and ready for measurement.
• Add 4 drops of the
HI 93700A-0
(6
drops in case of seawater analysis).
• Replace the cap and swirl the solution.
• Add 4 drops of the
HI 93700B-0
(10
drops in case of seawater analysis).
• Replace the cap and swirl the solution.
• Replace the cuvette into the holder and
ensure that the notch on the cap is
positioned securely into the groove.
• Press and hold
READ/ /TIMER
for three
seconds. The display will show the
countdown prior to measurement. The
beeper is playing a beep at the end of
countdown period.
