Display Of The Condition Of The Ph Combination Electrode - JUMO 202710 Operating Manual

6 Calibration of the pH combination electrode
ATC
Use the
Rinsing
Rinse the combination electrode with de-ionized (distilled) water and dry.
Calibration point 3
Insert the combination electrode and the temperature probe into the third
buffer solution and gently stir.
Press the
appears on the display above the yellow "ok" label).
ATC
Use the
solution and then save by pressing the
Finally, the condition of the combination electrode is briefly displayed and then
the 3 point calibration is completed and the device returns to measurement
mode.
6.5

Display of the condition of the pH combination electrode

NOTE!
After every calibration, the condition of the pH combination electrode is dis-
played for approximately 3 seconds.
Briefly press the
ATC
100 %:
90 to 30 %:
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The value on the main display of the device flashes,
rH mV mV pH
H
"Pt.3" and a revolving symbol appear in the subsidi-
ary display of the device to indicate that the input of
the pH value for the third buffer solution is expected.
ok CAL AL Logg pH
and keys to set the value for the third buffer solution.
key when the measured value is stable (small triangle
rH mV mV pH
H
The display changes so that the temperature value
(t.3) for the third buffer solution can be entered.
ok CAL AL Logg pH
and keys to set the temperature value for the third buffer
key.
The condition of the pH combination electrode is dis-
rH mV mV pH
H
played for approximately 3 seconds.
ok CAL AL Logg pH
The combination electrode is in very good condition
The condition of the combination electrode is adequate
key.
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