IBP HDM99, Руководство пользователя

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Calibration 49
Measuring of the cell parameter
Before this function can be used, the reference temperature must be
adjusted. It is sufficient for the conductivity calibration to know the cell
parameter. If this is not known, or has been changed after longer use by
deposits on the electrode, this function can be used to define the cell
parameter newly. Call the function
measure cellpar. in the adjust-menu.
In this function the measuring range will not be adjusted automatically. The
adjustment for dialysate should be in the area of 13...14 mS/cm. Therefore
the measuring range must be 0...20 mS/cm. If the measuring range is too
small, the device indicates the overflow with >
OFL < above the beam
display. Via the menu point measure conduct you can choose the correct
measuring range with the arrow-keys. During the calibration the standard
solution should have a temperature of approx. 25 °C. When the
measurement value in the display is stable, the conductivity value of the
standard solution can be entered via the numeric keyboard and confirmed
with >
ENTER <. After the calibration, all values relevant for the
conductivity measurement are indicated once more. With the ok -key the
data will be saved.
For calibration of the conductivity use only fresh standard
solutions. Used solutions should not be refilled into the storage
bottle! Keep the standard solutions in a cool place.