Hanna Instruments HI 83216-01 - Manual (Page 23)

23
Calcium Hardness
• Add 1 drop of HI 93720C-0 EGTA solution to one cuvette (# 1), replace
the cap and invert the cuvette several times to mix. This is the blank.
• Place the blank (# 1) into the holder and close the lid.
• Press the Zero key. The meter will show “-0.0-” when the meter is zeroed and ready for measurement.
• Remove the blank and insert the second cuvette (# 2)
into the instrument.
• Press Read to start the reading. The instrument displays concentration in mg/L of calcium hardness,
as CaCO
3
.
• Press or to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of Calcium (Ca).
# 1
# 1
# 2