HT instruments SPEED418 - Manual (Page 34)

400 Series
EN - 33
9. If the instrument detects that
the phase and earth leads
are inverted, the message
reported here to the side is
displayed. Check the
connection of the cables
R C D
0°
---ms
FRQ=50.0Hz Ut=1.4V
VP-N= 1V VP-Pe=231V
REVERSE P-PE
The phase and earth conductors are
inverted
x1 30mA 50V
Func IdN RCD UL
10. If the instrument detects a
phase-to-neutral voltage and
a phase-to-earth voltage
lower than the limit, the
message reported here to
the side is displayed. Check
that the system being tested
is energized
R C D
0°
---ms
FRQ=50.0Hz Ut=1.4V
VP-N= 1V VP-Pe= 1V
Low voltage Insufficient voltage
x1 30mA 50V
Func IdN RCD UL
11. If the instrument detects a
phase-to-neutral voltage or a
phase-to-earth voltage higher
than the limit, the message
reported here to the side is
displayed. Check that the
instrument is not phase-to-
phase connected
R C D
0°
---ms
FRQ=50.0Hz Ut=1.4V
VP-N=281V VP-Pe=280V
High voltage High voltage detected
x1 30mA 50V
Func IdN RCD UL
12. If the instrument detects a
phase-to-neutral voltage
lower than the minimum limit,
it does not perform the test and
displays the message
reported here to the side.
Check the efficiency of the
neutral conductor
R C D
0°
---ms
FRQ=50.0Hz Ut=1.4V
VP-N= 1V VP-Pe=231V
MISSING N Missing neutral conductor
x1 30mA 50V
Func IdN RCD UL
13. If the instrument detects an
extremely high earth
resistance, so that it deems
the earth conductor or the
earthing absent, it does not
perform the test and displays
the message reported here
to the side. Check the
efficiency of the protective
conductor and the earthing
R C D
0°
---ms
FRQ=50.0Hz Ut=1.4V
VP-N=231V VP-Pe=160V
MISSING-PE Inefficient earthing
x1 30mA 50V
Func IdN RCD UL