18
• Remove the cuvette, open it and add 4 drops of
HI93733A‑0
Nessler Reagent. Replace the cap
and swirl the cuvette gently to mix.
• 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.
MEASUREMENT PROCEDURE
HI9
37
33
A-0
• Alternatively, wait for 3 minutes and 30 seconds and just press
READ /TIMER.
In both cases, the lamp, cuvette and detector icons will appear on the display, depending on
the measurement phase.