Hanna Instruments HI 3512 - Manual (Page 35)

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• When the reading is stable and close to the selected standard, the
Confirm functional key is displayed.
• Press Confirm to confirm calibration.
ERROR SCREENS
Wrong standard
The calibration cannot be confirmed.
The EC reading is not close to the selected standard or the temperature
is out of the 0 - 60 °C window. Select another standard using the
ARROW keys or change the temperature value.
CLEAR CALIBRATION
Press Clear functional key when displayed to clear old calibrations.
All old calibrations, are cleared and the instrument returns to measurement
mode.
NaCl CALIBRATION
NaCl calibration is a one-point procedure in 100.0% NaCl solution. Use
the
HI 7037L calibration solution (sea water solution) as a 100% NaCl
standard solution.
• To enter NaCl calibration select the Salinity % range and press CAL.
• The measured % NaCl, the temperature and the 100% NaCl
standard are displayed.