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ERROR SCREENS
Wrong standard
The calibration cannot be confirmed.
• If necessary, press the / keys to select a different standard value.
• The “ ” tag will blink on the LCD until the reading is stable.
• When the reading is stable and within range of the selected standard, the CFM functional key is
displayed.
• Press CFM to confirm calibration.
• The instrument stores the calibration values and returns to normal measurement mode.
FOUR, THREE or TWO POINT CALIBRATION
• Proceed as described in “FIVE POINT CALIBRATION” section.
• Press CAL or ESC after the appropriate accepted calibration point. The instruments will return to
measurement mode and will store the calibration data.
• The calibrated value and the fourth expected standard will be displayed.
• After the fourth calibration point is confirmed, immerse the EC electrode into the fifth standard
solution and stir gently.
The EC reading is not within range of the selected standard. Select another standard using the
/ keys.
EC CALIBRATION
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