Hanna-instruments HI 96104 Uživatelský manuál stáhnout pdf (Strana 16)

INTERFERENCES

Interference may be caused by:

Bromine

Iodine

Chlorine Dioxide

Ozone

Oxidized manganese and Chromium

In case of water with hardness greater than 500 mg/L CaCO

, shake the sample for approximately

1 minute after adding the reagent.

In case of water with alkalinity greater than 250 mg/L CaCO

or acidity greater than 150 mg/L

CaCO

, the color of the sample could disappear or develop only partially. To resolve this,

neutralize the sample with diluted HCl or NaOH.

• Alternatively, wait for one minute and

just press READ/ /TIMER. In both

cases, the lamp, cuvette and detector

icons will appear on the display, de-

pending on the measurement phase.

• The instrument directly displays

concentration in mg/L of free chlorine on

the Liquid Crystal Display.

TOTAL CHLORINE MEASUREMENT

• Fill the cuvette up to the mark with 10

mL of unreacted sample and replace the

cap.

• Place the cuvette into the holder and en-

sure that the notch on the cap is positioned

securely into the groove.

• Press ZERO/CFM and the lamp, cuvette

and detector icons will appear on the

display, depending on the measurement

phase.

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Hanna-instruments HI 96104 Uživatelský manuál Strana 16