Hanna Instruments HI 96101 - Manual (Page 26)

26
IRON LR MEASUREMENT
• Fill one graduating mixing cylinder up to the 25
mL mark with deionized water.
• Add the content of one packet of HI 93746-0
TPTZ reagent, close the cylinder and shake
vigorously for 30 seconds. This is the blank.
• Fill the cuvette with 10 mL of the blank up to the
mark and replace the cap.
• 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.
• 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 vigor-
ously 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.
2 5 m L 2 5 m L 2 5 m L 2 5 m L 2 5 m L
12
3
6
9
30"
2 5 m L 2 5 m L 2 5 m L 2 5 m L 2 5 m L
12
3
6
9
30"