User Guide

14
REQUIRED REAGENTS
Code Unit Description Quantity
HI 93746-0 Iron LR TPTZ Reagent 2 packets
HI 93719A-0 Hardness Ca & Mg indicator 0.5 mL
HI 93719B-0 Hardness Alkali solution 0.5 mL
HI 93719C-0 Hardness EDTA solution 1 drop
HI 93719D-0 Hardness EGTA solution 1 drop
REAGENT SETS
HI 93746-01 Reagents for iron LR (100 packets)
HI 93746-03 Reagents for iron LR (300 packets)
HI 93719-01 Reagents for 100 hardness tests
HI 93719-03 Reagents for 300 hardness tests
For other accessories see page 48.
MEASUREMENT PROCEDURE
• Turn the meter on by pressing ON/OFF. The meter
will automatically default to the iron measurement
mode and F will appear on the right to warn the
user.
• When the LCD displays “- - -”, it is ready.
• Refer to the manual pages below to measure the appropriate
parameter and for the required reagents:
IRON LR MEASUREMENT
• See page 44.
HARDNESS MEASUREMENT
• Press SET to select the hardness scale. “ZER1”
will appear on the LCD; then see page 39.
ON
OFF
HI 93741
Total Hardness & Iron LR
39
D
• Fill a graduated beaker up to the 50 mL mark
with the sample.
• Add 0.5 mL of HI 93719A Calcium
and Magnesium indicator solution and
mix.
• Add 0.5 mL of HI 93719B Alkali
solution for Calcium and Magnesium
and mix.
• Fill three cuvets up to the mark with
10 mL of sample each.
• Add 1 drop of HI 93719C EDTA solu-
tion to one cuvet, replace the cap and
swirl the solution. This is the ZERO1
sample.
• Add 1 drop of HI 93719D EGTA solu-
tion to the second cuvet, replace the
cap and swirl the solution. This is the
ZERO2 sample.
HARDNESS HARDNESS
HARDNESS HARDNESS
HARDNESS
MEASUREMENTMEASUREMENT
MEASUREMENTMEASUREMENT
MEASUREMENT
Hardness
10 mL
10 mL
10 mL