33
• Keep the button “ /CAL” (5) pushed (approx. 3 seconds), until “CAL” (C) appears at the
bottom and the display “1413 µS/cm” flashes in the display.
Calibration starts now.
A brief push of the button “ /CAL” (5) interrupts calibration prematurely.
• When calibration is completed, the display shows “SA” (“Save”) and then “End”; then the
display shows the measured conductivity.
The display “SA” does not appear if calibration fails. In this case, pull the measuring
probe from the calibration solution and rinse the tip of the measuring probe with
distilled water carefully. Wipe the measuring probe dry.
Then perform another calibration, check if the tip of the measuring probe has actu-
ally been fully submersed in the buffer solution.
For a measurement in liquids with very high conductivity, use a calibration solution
with 12.88 mS/cm (not enclosed).
Calibration solutions with a different conductivity than 1413 µS/cm or 12.88 mS/cm
cannot be used for calibrating the combination meter.
• If the tip of the measuring probe is not submersed into a liquid and if the display does not
show a measured value of 0 µS/cm, start calibration. Keep the button “ /CAL” (5) pushed
(approx. 3 seconds), as described above until “CAL” (C) appears at the bottom and the
display “0 µS/cm” flashes in the display.
When calibration is completed, the display shows “SA” (“Save”) and then “End”; then the
display shows the measured conductivity (this should now be 0 µS/cm).
