Hanna Instruments HI 96728 User Manual

Page 18

• After a few seconds the display will

show “-0.0-”. The meter is now zeroed
and ready for calibration. The blinking
“READ”

asks for reading calibration

standard.

• Remove the cuvette.

• Place the CAL CHECK

Standard

HI 96728-11

Cuvette B into the cuvette

holder and ensure that the notch on the
cap is positioned securely into the groove.

• Press READ/ /TIMER and the lamp,

cuvette and detector icons will appear on
the display, depending on the
measurement phase.

• After measurement the instrument will show

for three seconds the CAL CHECK

Standard value.

Note:

If the display shows “STD HIGH”,

the standard value was too high. If
the display shows “STD LOW”, the
standard value was too low. Verify
that both CAL CHECK

Standards

HI 96728-11

Cuvettes, A and B are

free from fingerprints or dirt and that
they are inserted correctly.

• Then the date of the last calibration

(e.g.: ”01.08.2009”) appears on the
display, or “01.01.2009” if the factory
calibration was selected before. In both
cases the year number is blinking, ready
for date input.