Hanna-instruments HI847492 Manual de usuario descargar pdf (Pagina 13)

• At the end of the reading, the fourth calibration

point (800 FTU) and “CAL P.4” is displayed. If

desired, the value can be changed using the

UP or DOWN keys.

Note: At this moment it is possible to exit calibration by pressing CAL/RCL. The instrument will

memorize the three-point (<0.1, 15.0 and 100 FTU) calibration data and will return to

measurement mode.

• Remove the 100 FTU standard cuvet from the

meter and insert the 800 FTU standard cuvet

into the holder.

• Close the lid and press READ . “----” and the

“LED and Read Status” indicator will blink again

while making the reading.

• At the end of the measurement, the four-point

calibration is completed and the instrument

returns automatically to measurement mode.

OUT CAL RANGE FUNCTION

The instrument has an Out Cal Range function to prevent

taking measurements in a range where the calibration

do not assure the best results. The range where the

calibration assures correct measurements is up to 40 FTU

for a two-point calibration and up to 150% of the third

point value for a three-point calibration.

The display will show a blinking “CAL” tag each

time the measurements are taken outside the

calibration range.

CALIBRATION ERRORS

• If the read value during calibration is too far

from the set value, the instrument will show

“-LO-” or “-HI-” error.

100

FTU

800

FTU

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Hanna-instruments HI847492 Manual de usuario Pagina 13