Hanna Instruments HI 83216-01 - Manual (Page 25)

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SPECIFICATIONS
Range 0.00 to 5.00 mg/L
Resolution 0.01 mg/L from 0.00 to 2.50 mg/L;
0.10 mg/L above 2.50 mg/L
Accuracy ±0.03 mg/L ±3% of reading at 25 °C
Typical EMC ±0.01 mg/L
Deviation
Light Source
Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the USEPA method 330.5 and Standard Methods for the Examination
of Water and Wastewater, 20 th edition, 4500-Cl G. The reaction between free chlorine
and the DPD reagent causes a pink tint in the sample.
REQUIRED REAGENTS
Code Description Quantity
HI 93701-0 DPD powder Reagent 1 packet
REAGENT SETS
HI 93701-01 Reagents for 100 tests
HI 93701-03 Reagents for 300 tests
For other accessories see page 34.
MEASUREMENT PROCEDURE
• Select the Free Chlorine method using the procedure described in the Method Selection section (see
page 15).
• Fill the cuvette with 10 mL of unreacted sample (up to the
mark) and replace the cap.
• Place the cuvette into the holder and close the lid.
Free Chlorine
FREE CHLORINE
10 mL