Chauvin Arnoux F407, Руководство пользователя

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- in AC and AC+DC :
Display Quantity
1
st
row Total RMS current in A RMS or TRMS
2
nd
row Crest factor (CF)
3
rd
row DC current component A DC
3.9 STARTING CURRENT OR OVERCURRENT (TRUE INRUSH)
MEASUREMENT
To measure a starting current or overcurrent, proceed as follows:
1. Set the switch to then encircle only the conductor concerned with
the clamp.
2. Effect a long press on the key. The InRh symbol is displayed,
then the triggering threshold. The clamp then awaits detection of the
True-Inrush current.
"------" is displayed and the "A" symbol flashes (central row of the
display).
3. After detection and acquisition for 100 ms, the RMS value of the True-
Inrush current is displayed, along with the PEAK+/PEAK- values
subsequently.
4. A long press on the key or a change of function leads to exiting
from the True-Inrush mode.
Remark : the triggering threshold in A is 10A if the initial current is zero (starting of
installation); it is that set in the configuration (see §3.4.2) for an established current
(overload in a installation)..