18
VALIDA
TION PROCEDURE
• Turn the meter on by pressing
ON/OFF
.
• Press
ZERO/CFM
and the lamp, cuvette and detector icons will appear on the display, depending
on the measurement phase.
• Place the
CAL Check
TM
Standard
HI96751‑11
Cuvette A into the cuvette holder and ensure that
the notch on the cap is positioned securely into the groove.
• When the beeper sounds briefly and the LCD displays dashes, the meter is ready. The blinking
“ZERO” asks for instrument zeroing.
Use the validation procedure to ensure that the instrument is properly calibrated.
Warning:
Do not validate the instrument with any standard solutions other than the Hanna Instruments
CAL Check
TM
Standards, otherwise erroneous results will be obtained.