VWR International sympHony, Руководство пользователя

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sympHony
™
Meter User Guide
Conductivity Calibration
Note:
For an automatic calibration, the nominal cell constant of the conductivity
probe must be entered in the setup menu before the calibration is performed. Refer
to the conductivity probe user guide for the nominal cell constant value.
1. In the measurement mode, press until the arrow icon points to the middle
line, press until the
µS/cm
or
mS/cm
icon is shown and press to
begin the calibration.
2. Rinse the conductivity probe with deionized water and place it into the
conductivity standard.
3. To perform a manual calibration – The manual calibration screen will display
the cell constant on the bottom line, the conductivity value of the calibration
standard on the middle line and
on the top line. To change the cell
constant, press until the first digit to be changed is flashing, press /
to change the value of the flashing digit and continue to change the digits
until the displayed conductivity value matches the value of the standard at the
measured temperature. Once the value is set, press
until the decimal point
is in the correct location. Press to save and end the calibration.
Note:
In the manual calibration screen, start changing the cell constant within
five seconds or the meter will proceed to the automatic/direct calibration. If this
occurs, press and hold
to abort the calibration and repeat the calibration.
4. To perform an automatic or direct calibration – Wait for the meter to go from
the manual calibration screen to the automatic/direct calibration screen. The
automatic/direct calibration screen will display the conductivity value of the
calibration standard on the middle line and
on the bottom line.
a. Automatic calibration – When the µS/cm or mS/cm icon stops flashing, the
meter will display the temperature-corrected conductivity of the standard.
Conductivity Technique