Thermo Orion Star, Руководство пользователя

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Thermo Electron Corporation IX-6 Orion Star Series Meter
Conductivity Technique
Conductivity Calibration for 1-5 Points
• Select a conductivity probe with an appropriate cell constant for the expected
conductivity of the samples to be measured . A flow cell is recommended for
greater low level measurement accuracy . Fresh standards should be used for
each calibration .
• Verify the correct reference temperature has been selected in the conductivity
setup menu .
• All conductivity calibrations are performed in mS/cm or μS/cm . The other
measurement modes of conductivity are calculated using the cell constant
determined from the calibration measurement parameters selected in the
setup menu .
1 . Prepare the probe for use according to the probe user guide or operator’s
manual .
2 . In the measurement mode press until the arrow icon is pointing to the
conductivity measurement line .
3 . Press .
4 . Rinse the probe and place into the conductivity standard .
5 . To perform a Manual Calibration – The screen will display the cell constant on
the bottom line and the conductivity value on the middle line . Use and
/ to change the cell constant until the displayed conductivity value matches
the conductivity of the conductivity standard at the measured temperature .
• If you do not start changing the cell constant within 5 seconds the meter will
automatically proceed to the AutoCal
™
/DirectCal
™
screen .