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Notes:
• If the temperature is out of range, the "WRONG
BUFFER TEMP" message blinks on the LCD. If the
reading is too far from the expected value, "WRONG
BUFFER" blinks.
• For best results choose a standard value for calibra-
tion close to the sample to be measured.
• During standard calibration the meter uses 1.90%/°C
compensation coefficient . If the setup item "tc" has
been set to different value, when exiting calibration
mode, the displayed valued on the upper LCD might
be different from the nominal standard value.
CUSTOM CALIBRATION
It is also possible to perform EC calibration with custom
calibration solution.
• Immerse the probe in the custom calibration solution
and select the EC range. Press CAL to enter the EC
calibration and then the RANGE key to enter custom
EC calibration mode.
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• The "CAL", "BUFFER" and "Cal Point Custom" tags
light up. The primary LCD displays the not calibrated
temperature compensated EC reading, while the sec-
ondary LCD shows the temperature compensated EC
reading, factory calibrated with k=1. The hourglass
symbol blinks.
• Using the arrow keys, adjust the EC reading on the
primary LCD to the desired value.
• The maximum adjustment is ± 40% around the sec-
ondary LCD reading.
• When the reading is stable, the CFM tag starts blink-
ing on the LCD. Press CFM to confirm calibration.
• The instrument displays the "Stor" and "Good" mes-
sages and returns to measurement mode.
