Hanna-instruments HI 88713 Manual do Utilizador descarregar pdf (Página 12)

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Note: The reading of the first point could be skipped for FNU and NTU modes by pressing “Skip”

functional key. In this case, the 0.00 value will be used for calibration.

• Place the cuvette for first calibration point:

• <0.1 FNU (NTU) calibration cuvette for all

modes except FAU mode.

• 15 NTU formazin prepared standard for FAU

mode.

Note: For the FAU mode, if necessary, press UP

or DOWN key to edit the calibration point value

to match the exact value of the standard.

• Close the lid and press “Read” functional key. The display will show the value blinking and the

light icon during measurement.

Note: If the Average mode was previously selected, the measurement in calibration mode will be

done using the average.

• At the end of the measurement, the second proposed calibration point is displayed.

SECOND POINT CALIBRATION

• Remove the first calibration cuvette.

• Place the cuvette for second calibration point:

• 15 NTU (FNU) calibration cuvette for NTU

ratiometric mode.

• 15 NTU formazin prepared standard for NTU

non-rating and FNU modes.

• 100 NTU formazin prepared standard for FAU mode.

Note:

If necessary, press UP or DOWN key to edit

each calibration point value to match the exact value of

the standard as measured with a reference turbidimeter.

• Close the lid and press “Read” functional key.

The display will show the value blinking and the light icon during

measurement.

• At the end of the measurement, the third proposed calibration point is displayed.

• At this moment it is possible to exit calibration by pressing “End” functional key.

• If the calibration is terminated, the display will briefly

show “Store...” and the two point calibration is saved.

The instrument returns to the main screen.

THIRD CALIBRATION POINT

• Remove the second standard cuvette.

• Place the cuvette for third calibration point:

• 100 FNU (NTU) calibration cuvette for NTU

ratiometric mode.

• 100 NTU formazin prepared standard for NTU

non-ratio and FNU modes.

• 750 NTU formazin prepared standard for FAU mode.

Note:

If necessary, press UP or DOWN key to edit each

calibration point value to match the exact value of the

standard as measured with a reference turbidimeter.

• Close the lid and press “Read” functional key.

The display will show the value blinking and the light icon during

measurement.

• At the end of the measurement, the fourth proposed calibration point is displayed.

• At this moment it is possible to exit calibration by pressing “End” functional key.

• If the calibration is terminated, the display will briefly

show “Store...” and the three point calibration is saved.

The instrument returns in the main screen.

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