• For an accurate calibration, it is recom-
mended to wait an additional 5 or 10 min-
utes to ensure optimum conditioning of the
probe.
• Remove the protective cap.
• Press CAL. "----" appears
on the larger LCD together
with "CAL" to indicate that
the instrument is in calibra-
tion mode.
• The instrument will auto-
matically standardize itself
to the actual saturation
value. After approx. 1
minute it will show "100%"
on the LCD and a small
"SAMPLE" to indicate that
the calibration is complete.
•
HI 9143 only: press FACTOR and ensure
F1 and F2 are set to the appropriate altitude
and salinity values (pages 10-11).
Notes:• The instrument must be calibrated
whenever the probe, membrane
or the electrolyte is changed.
• To exit the calibration mode during
calibration, press
CAL.
• The display may be
switched from read-
ings in % saturation to
mg/L without
recalibration, by sim-
ply pressing RANGE.
CAL
CAL
SAMPLE
%
°C
CAL
RANGE
7
