Hanna-instruments HI 83200-01 Bedienungsanleitung PDF herunterladen (Seite 61)

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SPECIFICATIONS

Range 0 to 150 mg/L

Resolution 5 mg/L

Accuracy ±5 mg/L ±3% of reading

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

Method Sulfate is precipitated with barium chloride crystals. Light absorbance of the suspension

is measured.

REQUIRED REAGENTS

Code Description Quantity

HI 93751-0 Indicator reagent 1 packet

REAGENT SETS

HI 93751-01 Reagents for 100 tests

HI 93751-03 Reagents for 300 tests

For other accessories see page 17.

MEASUREMENT PROCEDURE

Note: for sample preparation follow the IRRIGATION WATER (LR) procedure on page 17.

• Select the

Sulfate

method using the procedure described

in the

Method Selection

section (see page 12).

• Fill a 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.

Sulfate

10 mL

SULFATE

Silver

• Press ZERO key. The display will show “-0.0-” when the meter is zeroed and ready for measurement.

• Fill a second cuvette up to the mark with 10 mL of the reacted sample.

• Insert the second cuvette into the instrument.

• Press READ to start the reading. The instrument displays

the results in mg/L of silver.

Note: a temperature above 30°C may cause turbidity. In this case, before zeroing and taking readings,

add 2-3 drops of Dispersing agent (HI 93703-51) to each cuvette and swirl until turbidity is completely

dissolved.

INTERFERENCES

Interference may be caused by:

above 30 mg/L Fe

above 1.5 mg/L

above 1000 mg/L as CaCO

above 10 mg/L

above 20 mg/L K

above 500 mg/L

above 8000 mg/L Mn

above 25 mg/L

above 1.5 mg/L Mg

above 1000 mg/L as CaCO

above 20 mg/L Na

above 5000 mg/L

above 40 mg/L Ni

above 1.5 mg/L

above 15 mg/L Pb

above 20 mg/L

above 20 mg/L Zn

above 30 mg/L

10 mL

# 2

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