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90
SPECIFICATIONS
Range
0.00 to 1.15 mg/L
Resolution
0.01 mg/L
Accuracy
±0.06 mg/L ±4% 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
EPA Diazotization method 354.1. The reaction between nitrite and
the reagent causes a pink tint in the sample.
REQUIRED REAGENTS
Code
Description
Quantity
HI 93707-0
Powder reagent
1 packet
REAGENT SETS
HI 93707-01
Reagents for 100 tests
HI 93707-03
Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the
Nitrite LR method using the procedure described in
the
Method Selection section (see page 12).
• Fill the cuvette up to the mark 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 cuvette.
• Add the content of one packet of HI 93707-0 reagent.
Replace the cap and shake gently for about 15 seconds.
Nitrite LR
NITRITE LOW RANGE
10 mL