1 4
• Remove the cuvet.
•
For free chlorine measurement:
add 3
drops of
HI 93701A-T
DPD1 indicator
and 3 drops of
HI 93701B-T
DPD1 buffer
to the cuvet.
Immediately
add 10 mL of unreacted
sample. Replace the cap and shake gently.
•
Immediately
replace the cuvet into the
cuvet holder and ensure that the notch on
the cap is positioned securely into the
groove.
• Press
READ/
and the lamp, cuvet 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
free chlorine on the LCD.
•
For total chlorine measurement,
remove
the cuvet and add to the reacted sample
3 drops of
HI 93701C-T
DPD3 solution.
Replace the cap and swirl gently.
• Replace the cuvet into the cuvet holder
and ensure that the notch on the cap is
positioned securely into the groove.
