Recalibration; Reset Function - VITLAB continuous E Instrucciones De Manejo

13. Recalibration

13.1 Recalibration
After prolonged use, or for specific applications instrument can be
adjusted in order to compensate for differences in accuracy.
1. After the titration volume has been dispensed (e. g., 25 ml to
50 ml), press the Pause key. The last volume which has been
titrated is then stored.
Note:
It is not possible to perform calibration with a value < 10 ml or
> 90 ml, as the test volume is then too low or too high. At
the attempt to enter the CAL mode with a volume < 10 ml or
> 90 ml, the following displays will appear:
2. Hold down the -key and the -key simultaneously for 3 sec-
onds until "CAL" starts flashing in the top right-hand corner of
the display.
3. Using the  or  key, change the value shown in the display to
the value of the mean measured volume (see chapter 11.1).
4. Press the "Start" key. The adjusted value is automatically ac-
cepted; the display is reset to zero, and the calibration procedure
is completed. The symbol "C" appears in the display from now on,
indicating that the factory calibration has been modified. (To re-
vert to the factory calibration, see Chapter 13.3 "Reset function").
Note:
When in titrating mode and the "C" symbol is displayed, the
current calibration value can be checked by pressing the  or
 key. When the keys are released, the display automatically
reverts back to the last value displayed.

13.2 Reset function

The reset function restores the factory calibration.
1. Press the "Start" key. The display is reset to zero, and the instru-
ment changes into titrating mode.
2. Press the "Start" key and the  key simultaneously for 3 seconds.
The "C" symbol disappears from the display, and the original
factory calibration is restored.
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