1 7
CALIBRATION PROCEDURE
Note:
It is possible to interrupt calibration procedure at any time by pressing
CAL CHECK
or
ON/OFF
keys.
Warning
: Do not calibrate the instrument with standard solutions other than the HANNA
CAL
CHECK
TM
Standards, otherwise erroneous results will be obtained. For accurate calibration, please
perform test at room temperature: 18 to 25°C (64.5 to 77.0°F)
• Turn the meter on by pressing
ON/OFF
.
• When the beeper sounds briefly and the
LCD displays dashes, the meter is ready.
• Press and hold
CAL CHECK
for three
seconds to enter
calibration mode
. The
display will show
“CAL”
during
calibration procedure. The blinking
“ZERO”
asks for instrument zeroing.
• Place the
CAL CHECK
TM
Standard
HI 95724-11
Cuvet A into the cuvet
holder and ensure that the notch on the
cap is positioned securely into the groove.
• Press
ZERO/CFM
and the lamp, cuvet
and detector icons will appear on the
display, depending on the measurement
phase.
