JUMO 202550 Operating Instructions Manual page 59

Procedure
The instrument is in the measurement mode,
"Operating modes and states", page 24.
Unlock the instrument for calibration,
"Unlocking the levels", page 27, (code word 0110)
Immerse the sensitive portions of the cell and the temperature probe in the
solution to be measured.
Temper the solution to 25°C.
Press the and
PGM
The upper display shows the uncompensated conductivity value for
the measured solution at 25°C, alternating with "CAL1"; the lower display
shows the temperature measured by the probe.
Press the key.
PGM
The upper display shows the uncompensated conductivity value for
the measured solution at the present temperature, alternating with "CAL2".
The lower display shows the temperature measured by the probe.
Temper the solution to the future working temperature.
When the temperature display has stabilized, press the
The upper display shows the conductivity value (compensated for 25°C) for
the measurement solution at the present temperature. The lower display
shows the temperature measured by the probe.
18 Conductivity indicator
(CAL) keys.
key.
PGM
57