Hanna-instruments HI 83218 Bedienungsanleitung PDF herunterladen (Seite 16)

SPECIFICATIONS

Range 0.0 to 50.0 mg/L

Resolution 0.1 mg/L

Accuracy ±0.5 mg/L ±5% of reading at 25 °C

Typical EMC ±0.1 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 93733A-0 Nessler Reagent 4 drops (in fresh and seawater)

HI 93733B-0 Ammonia Reagent 9 mL (in fresh and seawater)

REAGENT SETS

HI 93733-01 Reagents for 100 tests

HI 93733-03 Reagents for 300 tests

For other accessories see page 34.

MEASUREMENT PROCEDURE

• Select the

Ammonia HR

method using the procedure described in the

Method Selection

section (see page 11).

• Fill a cuvette with 1 mL of unreacted sample, by means of the

syringe.

• Add 9 mL of HI 93733B-0 Ammonia Reagent, by means of the 3 mL

plastic pipette. Place the cap and swirl the solution to mix.

• 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.

AMMONIA HIGH RANGE

Ammonia HR

1 mL

9 mL

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Hanna-instruments HI 83218 Bedienungsanleitung Seite 16