Hanna-instruments HI 83225 Manuel d'utilisateur télécharger pdf (Page 51)

SPECIFICATIONS

Range 0 to 150 mg/L

Resolution 5 mg/L

Accuracy ±5 mg/L ±3% of reading at 25 °C

Light Source Tungsten lamp with narrow band interference filter @ 466 nm

Method Adaptation of the Calmagite method

REQUIRED REAGENTS

Code Description Quantity

HI 93752A-0 Mg Magnesium Buffer Reagent 1 mL

HI 93752B-0 Mg Magnesium Indicator Reagent 9 mL

REAGENT SETS

HI 937520-01 Reagents for 50 tests

HI 937520-03 Reagents for 150 tests

For other accessories see page 57.

MEASUREMENT PROCEDURE

Note: for sample preparation follow the IRRIGATION WATER (LR)

procedure on page 20.

• Select the

Magnesium

method using the procedure described in

the

Method Selection

section (see page 12).

• Using one 1 mL syringe add exactly 1.00 mL of HI 93752A-0 Mg

Buffer reagent to the cuvette and use the pipette to fill the

cuvette up to the 10 mL mark with the HI 93752B-0 Mg

Indicator reagent.

• Replace the cap and invert several times 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.

Magnesium

MAGNESIUM

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Hanna-instruments HI 83225 Manuel d'utilisateur Page 51