Hanna Instruments c 99 Manuel D’Utilisation

27

SPECIFICATIONS

Range

0.00 to 3.00 mg/L

Resolution

0.01 mg/L

Accuracy

±0.04 mg/L ±4% of reading

Typical EMC

±0.01 mg/L

Deviation
Light Source

Tungsten lamp with narrow band interference

filter @ 420 nm

Method

Adaptation of the ASTM Manual of Water and
Environmental Technology, D1426-92

, Nessler

method. The reaction between ammonia and

reagents causes a yellow tint in the sample.

REQUIRED REAGENTS

Code

Description

Quantity

HI 93700A-0

First Reagent

4 drops (6 drops in seawater)

HI 93700B-0

Second Reagent

4 drops (10 drops in seawater)

REAGENT SETS

HI 93700-01 Reagents for 100 tests
HI 93700-03 Reagents for 300 tests
For other accessories see page 141.

MEASUREMENT PROCEDURE

• Select the program number corresponding to Ammonia 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.

Ammonia LR