Hanna Instruments HI 83211 - Manual (Page 18)

18
• Add the content of one packet of HI 93712C-0 Bleaching
powder to one of the two cuvettes. Replace the cap and shake
vigorously until completely dissolved. This is the blank.
• Place the blank into the holder and close the lid.
• Press Timer and the display will show the countdown prior to
zeroing the blank. Alternatively wait for 15 minutes and then press
Zero. The display will show “-0.0-“ when the meter is zeroed and
ready for measurement.
• Remove the blank and insert the other cuvette into the instrument.
• Press the Read key and the meter will perform the reading. The instrument displays the results in
mg/L of aluminum.
• Press or to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of Al
2
O
3
.
• Press or to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
Iron above 20 mg/L, Alkalinity above 1000 mg/L, Phosphate above 50 mg/L; Fluoride must be absent.
Aluminum
# 1
# 1
# 2