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HI 93744HI 93744
HI 93744HI 93744
HI 93744
pH/Total Hardness/Iron Low RangepH/Total Hardness/Iron Low Range
pH/Total Hardness/Iron Low RangepH/Total Hardness/Iron Low Range
pH/Total Hardness/Iron Low Range
The HI 93744 meter measures the pH, the Magnesium (Mg), Calcium
(Ca) and Total Hardness and the Iron (Fe) content in water and
wastewater.
SPECIFICATIONS
Range pH 5.9 to 8.5
Fe 0 to 400 µg/L
Mg Hardness 0.00 to 2.00 mg/L
Ca Hardness 0.00 to 2.70 mg/L
Total Hardness 0.00 to 4.70 mg/L
Resolution pH 0.1
Fe 1 µg/L
Hardness 0.01 mg/L
Accuracy pH ±0.1
Fe ±10 µg/L ±8% of reading
Hardness ±0.11 mg/L ±5% of reading
Typical EMC pH ±0.2
Deviation Fe ±1 µg/L
Hardness ±0.02 mg/L
Light Source Light Emitting Diode @ 555 nm
Method For pH, Phenol red method. The reaction be-
tween pH and the reagent causes a red tint in
the sample.
For Iron, Adaptation of the TPTZ Method. The
reaction between iron and the reagent causes a
blue tint in the sample.
For Hardness, adaptation of the Standard Meth-
HI 93744
Hardness/Iron LR/pH
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