Hanna-instruments HI 83225 Manuel d'utilisateur télécharger pdf (Page 24)

Ammonia HR

SPECIFICATIONS

Range 0 to 100 mg/L

Resolution 1 mg/L

Accuracy ±1 mg/L ±4% of reading at 25 °C

Typical EMC Dev. ±1 mg/L

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 93715A-0 First Reagent 4 drops (6 drops for seawater)

HI 93715B-0 Second Reagent 4 drops (10 drops for seawater)

REAGENT SETS

HI 93715-01 Reagents for 100 tests

HI 93715-03 Reagents for 300 tests

For other accessories see page 57.

MEASUREMENT PROCEDURE

ATTENTION:

Note: for sample preparation follow the NUTRIENTS SOLUTION (HR) procedure at page 22.

• Select the

Ammonia HR

method using the procedure

described in the

Method Selection

section (see page 12).

• Fill the cuvette 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.

AMMONIA HIGH RANGE

10 mL

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 59 60

Pas de commentaire

Hanna-instruments HI 83225 Manuel d'utilisateur Page 24