Hanna Instruments HI 83211 - Manual (Page 33)

33
SPECIFICATIONS
Range 0.0 to 12.5 mg/L
Resolution 0.1 mg/L
Accuracy ±0.1 mg/L ±5% of reading at 25 °C
Typical EMC ±0.1 mg/L
Deviation
Light Source
Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the Standard Methods for the Examination of Water and Wastewater,
18 th edition, DPD method. The reaction between iodine and the reagent causes a pink
tint in the sample.
REQUIRED REAGENTS
Code Description Quantity
HI 93718-0 DPD Reagent 1 packet
REAGENT SETS
HI 93718-01 Reagents for 100 tests
HI 93718-03 Reagents for 300 tests
For other accessories see page 66.
MEASUREMENT PROCEDURE
• Select the Iodine method using the procedure described in
the Method Selection section (see page 12).
• 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.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Remove the cap and add the content of one packet of
HI 93718-0 DPD reagent. Replace the cap and shake
gently for about 30 seconds to dissolve most of the reagent.
10 mL
Iodine
IODINE