15
Thermo Scientific Orion Star A212 Benchtop and Star A222 and Star A322 Portable Conductivity Meter Reference Guide
Chapter 4 Conductivity Calibration
Automatic and Direct Calibration
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are near the sample conductivity. Prepare the conductivity cell according to the instructions in the conductivity cell use
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measurement mode to conductivity.
Note: For an automatic calibration, the nominal cell constant of the conductivity cell must be entered in the setup menu
before the calibration is performed and Thermo Scientific Orion 100 μS/cm, 1413 μS/cm and/or 12.9 mS/cm conductivity
standards must be used.
Note: In most calibration screens, press
f1 (esc)
to return to the measurement mode without saving the calibration.
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f1 (cal)
.
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place into the standard.
3. When the conductivity cell and standard are ready, press
f3 (start)
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f3 (start)
is pressed and stop stirring once the reading stabilizes.
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a. Press
f2 (accept)
to accept the displayed conductivity value.
b. Press
f3 (edit)
to access the numeric entry screen and edit the conductivity standard value.
i. Press
,
,
or
to highlight a number or decimal point, press
f3 (enter)
to select the
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ii. Press
f2 (done
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iii. Press
f2 (accept)
to accept the entered conductivity value.
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f2 (next)
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f3 (cal done)
to save and
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value is accepted.
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to the calibration log. Press
f1 (meas)
to proceed to the measurement mode or press
f2 (print)
to proceed to the
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