Hanna-instruments HI 93414 Uživatelský manuál stáhnout pdf (Strana 30)

• Close the lid and press READ/TIMER u. The

display will show blinking dashes and the icons

for cuvette, detectors and lamp will appear

during measurement.

• At the end of the measurement, the third

calibration point (100 NTU) is displayed on

the primary LCD and “CAL P.3” on the

secondary LCD and “READ” tag will blink.

• At this moment it is possible to exit calibration

by pressing CAL/CHECK. The instrument will

memorize the two-point calibration data and

will return to measurement mode.

THREE-POINT CALIBRATION

To perform a three-point calibration, continue the

procedure with the following steps:

• Remove the second standard cuvette.

• Place the 100 NTU standard cuvette (or the

third prepared formazin standard) into the

holder, with the cuvette mark aligned with the

sign on the instrument top.

• Close the lid and press READ/TIMER u. The

display will show blinking dashes and the icons

for cuvette, detectors and lamp will appear

during measurement.

• At the end of the measurement, the fourth

calibration point (750 NTU) is displayed on

the primary LCD and “CAL P.4” on the

secondary LCD and “READ” tag will blink.

• At this moment it is possible to exit calibration

by pressing CAL/CHECK. The instrument will

memorize the three-point calibration data and

will return to measurement mode.

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Hanna-instruments HI 93414 Uživatelský manuál Strana 30