HT EASYTEST - DD Mode

EASYTEST-COMBI519
EN - 47
6.6.5. DD Mode
The standard IEC62955 defines the tripping times and current for RCD-DD (Detecting
Devices) types at nominal current of 6mA only. The x1 and
options are only available
in this mode
5.
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 will start the
measurement.
.
RCD 15/10 – 18:04
TT
I
=
- - -
mA
T
=
- - - ms
Ut =
- - - V
FREQ. = 50.00Hz
VL-PE=231V
VL-N=234V
Measuring...
6mA
DD↑
MODE
In
Type
Ut
CAUTION
If message “Measuring…” appears on the display, the instrument is
performing measurement. During this whole stage, do not disconnect the
test leads of the instrument from the mains.
6.
When the RCD trips and breaks the circuit, if the
tripping current and tripping time are within the limits
reported in 10.1, the instrument gives a double acoustic
signal, shows the “OK” message and displays the
screen to the side.
RCD 15/10 – 18:04
TT
I
=
4.5
mA
T
=
219 ms
Ut =
0 V
FREQ. = 50.00Hz
VL-PE=231V
VL-N=234V
OK
6mA
DD↑
MODE
In
Type
Ut
7.
When the RCD trips and breaks the circuit, if the
tripping current and tripping time are external the limits
reported in 10.1, the instrument gives a double acoustic
signal, shows the “NOT OK” message and displays the
screen to the side.
RCD 15/10 – 18:04
TT
I
=
1.2
mA
T
=
462 ms
Ut =
0 V
FREQ. = 50.00Hz
VL-PE=231V
VL-N=234V
NOT OK
6mA
DD↑
MODE
In
Type
Ut
8. 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.