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REPLACE CALIBRATION STANDARD
Each time a standard is confirmed the new calibration parameters replace the old calibration parameters
of the corresponding standard.
If the current standard has no correspondence in the existing stored calibration structure and this is not
full, the current standard is added to the existing stored calibration (up to 5 standards).
If the existing stored calibration is full (five calibration points) after confirming the calibration point,
the instrument will ask which buffer will be replaced by current standard.
Press
/
keys to select another standard to be replaced.
Press
CFM
to confirm the standard that will be replaced.
Press
CAL
or
ESC
to leave replace mode. In this case, the standard will not be stored.
Note: The replaced standard is not removed from calibration list and it can be selected for
the next calibration points.
NaCl CALIBRATION
NaCl calibration is a one point procedure in 100.0% NaCl solution. Use the
HI7037
calibration solution
(seawater solution) as a 100% NaCl standard solution.
• To enter NaCl calibration select the Salinity % range and press
CAL
.
• The instrument enters the Salinity calibration screen.
• Press
Salt
. The measured % NaCl, the temperature and the 100% NaCl standard are displayed.
• Rinse the probe with some of the calibration solution or deionized water. Immerse the probe into
HI7037
solution. Tap the probe repeatedly to remove any air bubbles that may be trapped inside
the sleeve.
• The “ ” tag will blink on the LCD until the reading is stable.
• When the reading is stable, the
CFM
functional key is displayed.
EC CALIBRA
TION
