14
• Fill the cuvette with 10 mL of unreacted
sample, up to the mark, and replace the
cap.
• Add six drops of
HI 93750A-0
, replace
the cap and swirl the solution.
• 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.
• Remove the cuvette.
• Add the content of one packet of
HI 93750B-0
powder reagent. Replace
the cap and shake gently for about 1
minute to dissolve most of the reagent.
• Replace the cuvette into the cuvette 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.
• 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.
Alternatively, wait for 2 minutes then just
press
READ/ /TIMER.
In both cases, the lamp, cuvette and
detector icons will appear on the display,
depending on the measurement phase.
• At the end of measurement, the instrument
directly displays concentration in mg/L of
potassium on the LCD.