20
VALID
ATION PROCEDURE
• After a few seconds, the display will show
“-0.0-”
. The meter is now zeroed and ready for
validation.
• Remove the cuvette.
• Place the
CAL Check
TM
Standard
HI96720‑11
Cuvette B into the cuvette holder and ensure that
the notch on the cap is positioned securely into the groove.
• Press
CAL CHECK
and the lamp, cuvette and detector icons together with
“CAL CHECK”
will
appear on the display, depending on the measurement phase.
• At the end of the measurement the display will show the validation standard value.
The reading should be within specifications as reported in the
CAL Check
TM
Standard Certificate. If
the value is found out of the specifications, please check that the cuvettes are free of fingerprints,
oil or dirt and repeat validation. If results are still found out of specifications, then recalibrate the
instrument.
