Hanna Instruments HI 83225 - Manual (Page 32)

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SPECIFICATIONS
Range 0 to 150 mg/L
Resolution 2.5 mg/L
Accuracy ±5 mg/L ±8% of reading at 25 °C
Typical EMC Dev. ±2.5 mg/L
Light Source
Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the cadmium reduction method. The reaction between nitrate-nitrogen
and the reagent causes an amber tint in the sample.
REQUIRED REAGENTS
Code Description Quantity
HI 93728-0 Powder reagent 1 packet
REAGENT SETS
HI 93728-01 Reagents for 100 tests
HI 93728-03 Reagents for 300 tests
For other accessories see page 57.
MEASUREMENT PROCEDURE
Note: for sample preparation follow the NUTRIENTS SOLUTION (MR) procedure at page 21.
• Select the
Nitrate MR method using the procedure described in
the Method Selection section (see page 12).
• Using the pipette, fill the cuvette with 6 ml of sample, up to
half of its height, 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 cuvette and add the content of one packet of
HI 93728-0 reagent.
NITRATE MEDIUM RANGE
Nitrate MR
6 mL