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
TM
Standard
HI 96721-11
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
TM
Standard
HI 96721-11
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.:
”01.08.2005”
) appears on the display, or
“01.01.2005”
if the factory calibration was
selected before. In both cases the year number
is blinking, ready for date input.