COMBITEST422
EN - 63
5. Note the presence of the correct voltage values between
L-PE corresponding to the selections carried out in the
initial phase (see § 5.1.3) as shown in the screen to the
side.
L O O P
15/10
– 18:04
TN
min
pfc
I
ZL-PE
=
=
- - -
- - -
A
FREQ. = 50.00Hz
VL-PE=223V
Ra
2Wire
16A
0.2s
FUNC
MODE MCB-C
Time
6. Press the
GO/STOP
key on the instrument, the
START
key on the remote switch probe or use the AutoStart
feature (see § 5.1.5). The instrument starts the
measurement and
the “
Measuring…
” message is shown
at display. During this whole stage, do not disconnect the
measuring leads of the instrument from the system under
test. The following screen appears on the instrument's
display.
L O O P
15/10
– 18:04
TN
min
pfc
I
ZL-PE
=
=
- - -
- - -
A
FREQ. = 50.00Hz
VL-PE=223V
Measuring…
Ra
2Wire
16A
0.2s
FUNC
MODE MCB-C
Time
7. In case of
positive
result (
Z
L-PE
≤ to limit impedance
relative to
protection device within the specified
time
– see § 12.10), the “
OK
” message and the screen to
the side are displayed by the instrument.
L O O P
15/10
– 18:04
TN
min
pfc
I
ZL-PE
=
=
1213
0.18
A
FREQ. = 50.00Hz
VL-PE=223V
OK
Ra
2Wire
16A
0.2s
FUNC
MODE MCB-C
Time
8. In case of
negative
result (
Z
L-PE
> to limit impedance
relative to
protection device within the specified
time
– see § 12.10), the “
NOT
OK
” message and the
screen to the side are displayed by the instrument.
L O O P
15/10
– 18:04
TN
min
pfc
I
ZL-PE
=
=
88
2.08
A
FREQ. = 50.00Hz
VL-PE=223V
NOT OK
Ra
2Wire
16A
0.2s
FUNC
MODE MCB-C
Time
9. Press the
SAVE
key to store the test result in the instrument’s memory (see § 7.1) or
the
ESC/MENU
key to exit the screen without saving and go back to the main
measuring screen.
