Measuring
34
To return to the original measurement for displaying the mains voltage U
L-PE
, twist
the central selector.
Note:
When measuring in multiphase systems, the loop resistance must be measured
between each phase (L
1.
L
2
L
3
) and the protective wire (PE).
Hint: This instrument may be operated at voltages from 101 to 435 V. Pertinent
regulations require that computation of the short-circuit current (I
K
) and of the
earthing/grounding voltage (U
S-PE
) refer to „nominal voltage“. The instrument
therefore automatically chooses the correct nominal voltage on the basis of the
following Table.
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