69
Iron LR
• Press the
Zero
key. The display will show “
-0.0-
” when the meter is zeroed and ready for
measurement.
• Remove the cuvette.
• Fill another graduated mixing cylinder up to the 25 mL
mark with the sample.
• Add the content of one packet of HI 93746-0 TPTZ reagent,
close the cylinder and shake vigorously for 30 seconds. This
is the reacted sample.
• Fill a cuvette with 10 mL of the reacted sample up to the
mark and replace the cap.
• Insert the sample into the instrument.
• Press
Timer
and the display will show the countdown prior to the measurement or, alternatively, wait
for 30 seconds and press
Read
. When the timer ends the meter will perform the reading. The
instrument displays concentration in
μμμμμ
g/L of iron
.
25 mL
10 mL