Hanna-instruments HI 96751 Instrukcja Użytkownika Pobierz pdf (Strona 8)

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VALIDATION PROCEDURE

• Remove the cuvette.

• Add the content of one packet of

HI 93751-0 reagent, replace the cap

and shake gently the cuvette for 1 minute.

• Replace the cuvette into the cuvette holder

and ensure that the notch on the cap is

positioned securely into the groove.

• Press and hold READ/ /TIMER for three

seconds. The display will show the

countdown prior to measurement. The

beeper is playing a beep at the end of

countdown period.

Alternatively, wait for 5 minutes then just

press READ/ /TIMER.

In both cases, the lamp, cuvette and

detector icons will appear on the display,

depending on the measurement phase.

• At the end of measurement, the instrument

directly displays concentration in mg/L of

sulfate on the LCD.

Calcium (as CaCO

) >20000 mg/L

Chloride (as Cl

) >40000 mg/L

Magnesium (as MgCO

) >10000 mg/L

Silica (as SiO

) >500 mg/L

Use the validation procedure to ensure that the instrument is properly calibrated.

Warning: Do not validate the instrument with any standard solutions other than the HANNA CAL

CHECK

Standards, otherwise erroneous results will be obtained.

• Turn the meter on by pressing ON/OFF.

• Press ZERO/CFM and the lamp, cuvette

and detector icons will appear on the

display, depending on the measurement

phase.

• Place the CAL CHECK

Standard

HI 96751-11 Cuvette A into the cuvette

holder and ensure that the notch on the

cap is positioned securely into the groove.

INTERFERENCES

Color or suspended matter in large amounts will interfere: suspended matter should be removed

by previous filtration.

Organic matter in large amounts may impede the precipitation of barium sulfate.

• When the beeper sounds briefly and the

LCD displays dashes, the meter is ready.

The blinking “ZERO” asks for instrument

zeroing.

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