Delmhorst-instrument F-2000T Manuel d'utilisateur télécharger pdf (Page 3)

accumulated readings. Hence, the user must release the key before four seconds if

he wants to retain the readings. However, if all 100 readings are accumulated, then

he should keep the key pressed to erase the readings so that the meter can

accumulate the new ones.

6. TO CHECK THE METER CALIBRATION

To check the meter calibration, the user must PRESS first the “READ” key,

immediately followed (within one second) by the “CHECK” key. The meter should

display “12.0” +/- 0.2. Since a relay disconnects the external input when checking

calibration, there is no need to disconnect the external electrode.

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Delmhorst-instrument F-2000T Manuel d'utilisateur Page 3