Hanna Instruments c 99 Manuel D’Utilisation

106

Nitrite LR

SPECIFICATIONS

Range

0.00 to 0.35 mg/L

Resolution

0.01 mg/L

Accuracy

±0.02 mg/L ±4% of reading

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 141.

MEASUREMENT PROCEDURE

• Select the program number corresponding to Nitrite LR on the

secondary LCD by pressing PROGRAM W and V.

• Fill the cuvet with 10 mL of unreacted sample

(up to the mark) and replace the cap.

• Place the cuvet into the holder and

ensure that the notch on the cap is
positioned securely into the groove.

• Press ZERO and “SIP” will blink on the display.

• Wait for a few seconds and the display will

show “-0.0-”. Now the meter is zeroed
and ready for measurement.