Digi-Check 5.2 04.12.2003 15:02 Uhr Seite 17
Phase sequence testing
During phase sequence testing
interpreted as L2 and the small
the display unit handle must be
test probe as L1.
L2
U > 340 V
U > 340 V
L3
50 - 60 Hz
L1
50 - 60 Hz
N
clockwise phase
anti-clockwise
PE
sequence
phase sequence
L1
L2
If a clockwise arrow appears (as
unit handle may be interpreted
shown in the diagram for clock-
as L2 and the phase connected
wise phase sequence), the
to the small test probe as L1.
phase contacting the display
Phase testing
IMPORTANT: The test probe not
N
connected to the phase must
L
> 200 V / 50-60 Hz
remain contact-free during the
phase test.
Measuring resistance
(Bar graph display: measure-
ment range from 0–2000 Ω)
R
17
L1
L3
L2
N
PE
L1
L2