Hanna-instruments HI 83212 Bedienungsanleitung PDF herunterladen (Seite 19)

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Phosphate HR

• Add the content of one packet of HI 93717B-0 Phosphate

HR Reagent B to the cuvette. Replace the cap and shake

gently until completely dissolved.

• Reinsert the cuvette into the instrument.

• Press TIMER and the display will show the countdown prior

to the measurement or, alternatively, wait for 5 minutes

and press READ. When the timer ends the meter will

perform the reading. The instrument displays the results in

mg/L of phosphate (PO

• Press the s or t to access the second level of functions.

• Press the Chem Frm functional key to convert the result in mg/L of phosphorus (P) and phosphorus

pentoxide (P

• Press the s or t to go back to the measurement screen.

INTERFERENCES

Sulfide

Chloride above 150000 mg/L )

Calcium above 10000 mg/L as CaCO

Magnesium above 40000 mg/L as CaCO

Ferrous iron above 100 mg/L

Phosphate HR

PHOSPHATE HIGH RANGE

SPECIFICATIONS

Range 0.0 to 30.0 mg/L

Resolution 0.1 mg/L

Accuracy ±1 mg/L ±4% of reading

Typical EMC Dev. ±0.1 mg/L

Light Source Tungsten lamp with narrow band interference filter @ 525 nm

Method Adaptation of the

Standard Methods for the Examination of Water and Wastewater,

edition,

Amino Acid method. The reaction between phosphate and reagents

causes a blue tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93717A-0 Molybdate 10 drops

HI 93717B-0 Reagent B 1 packet

REAGENT SETS

HI 93717-01 Reagents for 100 tests

HI 93717-03 Reagents for 300 tests

For other accessories see page 50.

MEASUREMENT PROCEDURE

• Select the

Phosphate 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 ZERO key. The display will show “-0.0-” when the meter

is zeroed and ready for measurement.

• Remove the cuvette.

• Add 10 drops of HI 93717A-0 Molybdate reagent.

x 10

10 ml

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