COMBITEST422
EN - 31
conductors and between each active conductor and the earth. The following operating
modes are available:
•
MAN
the test can be carried out between the L-N, L-PE or N-PE conductors and has
a fixed duration of 3s when the
GO/STOP
key is pressed on the instrument (or
START
on the remote switch probe). Recommended mode
•
TMR
the test is carried out between the L-PE conductors and has a programmable
duration in the range
3s ÷ 999s
in steps of 1s by pressing the
GO/STOP
key on
the instrument (or
START
of the remote switch probe). It is possible to perform
DAR
(Dielectric Absorbtion Ratio) duration test for test time >60s and
PI
(Polarization Index) for test time> 600s (10min) (see § 12.2.1 and § 12.2.2)
•
AUTO
the instrument performs an automatic sequence test between the L-N, L-PE and
N-PE conductors when the
GO/STOP
key is pressed on the instrument (or
START
of the remote switch probe).
Fig. 11: Insulation test between L-N-PE by means of single cables (MAN and AUTO modes)
Fig. 12: Insulation between L-N-PE with single cables and remote switch probe (MAN and
AUTO)
