HT COMBITEST422, User Manual

Page: 20 / 111

COMBITEST422
EN - 20
6.1.1. Anomalous situations
1. If the instrument detects a L-N or L-PE voltage higher
than the maximum limit (265V), it does not carry out the
test and displays a screen like the one to the side. Check
the connection of measuring cables.
A U T O
15/10
– 18:04
T N
I s c = - - - A Z L - N = - - -
Ω
I f c = - - - A Z L - P E = - - -
Ω
T r c d = - - - m s I r c d = - - - m A
F R E Q = 5 0 . 0 0 H z U t = - - - V
V L - P E = 2 7 0 V V L - N = 2 7 2 V
V o l t a g e > 2 6 5 V
30mA 500V
1.00M

I

n
Type Vtest Lim
2. If the instrument detects a L-N or L-PE voltage lower than
the minimum limit (100V), it does not carry out the test
and displays a screen like the one to the side. Check that
the system being tested is supplied.
A U T O
15/10
– 18:04
T N
I s c = - - - A Z L - N = - - -
Ω
I f c = - - - A Z L - P E = - - -
Ω
T r c d = - - - m s I r c d = - - - m A
F R E Q = 5 0 . 0 0 H z U t = - - - V
V L - P E = 1 5 V V L - N = 1 5 V
V o l t a g e < 1 0 0 V
30mA 500V
1.00M

I

n
Type Vtest Lim
3. If the instrument detects that the phase and neutral leads
are inverted, it does not carry out the test and a screen
similar to the one reported to the side is displayed. Rotate
the mains plug or check the connection of the measuring
cables.
A U T O
15/10
– 18:04
T N
I s c = - - - A Z L - N = - - -
Ω
I f c = - - - A Z L - P E = - - -
Ω
T r c d = - - - m s I r c d = - - - m A
F R E Q = - - - H z U t = - - - V
V L - P E = - - - V V L - N = - - - V
E x c h a n g e L - N
30mA 500V
1.00M

I

n
Type Vtest Lim
4. If the instrument detects a dangerous voltage on PE
conductor, it does not carry out the test and displays a
screen like the one to the side.
A U T O
15/10
– 18:04
T N
I s c = - - - A Z L - N = - - -
Ω
I f c = - - - A Z L - P E = - - -
Ω
T r c d = - - - m s I r c d = - - - m A
F R E Q = - - - H z U t = - - - V
V L - P E = - - - V V L - N = - - - V
V o l t a g e o n P E
30mA 500V 1.00M

I

n
Type Vtest Lim