Gx
Series
EN - 93
6.10. AUTO TEST: AUTOMATIC TEST SEQUENCE (NOTRIP , RCD, M
)
This function allows to perform in automatic sequence the following measurements:
Overall earth resistance without causing the RCD tripping (
NoTrip
)
Tripping time and tripping current of
General
RCD type A (
), AC (
) or B (
)
Insulation resistance in L/N-PE mode
In compliance with the modes described in respective paragraphs.
CAUTION
Depending on the selected electrical system (TT, TN or IT) some kind of
connection and function modes are disabled by the instruments (see Table 2 )
1. Select the reference country (see § 5.1.2), the options
“TN” or “TT”, “25 or 50V”, “50Hz or 60Hz” and the
reference voltage in the general settings of the
instrument (see § 5.1.4). Touch the
icon. The
screen to the side appears on the display. Touch the
icon on the left side in order to set the type of RCD. The
following screen appears on the display
2. Move the left slide bar reference by selecting the
waveform of the differential switch between the options:
(type AC),
(type A),
(type B). Move the
second slide bar reference by selecting the desired
rated current of the differential switch between the
options:
6mA,10mA,30mA,100mA,300mA
Move the
third slide bar reference by selecting the type of the test
between the following options:
X1
tripping time measurement at nominal current
tripping current measurement
Confirm the choice by going back to the initial
measurement screen. Note the presence of the chosen
selections
3.
Touch the
icon. The screen to the side appears
on the display.
Set the test voltage for L-PE and N-PE insulation
measurement choosing by the options:
OFF (exclusion
of L/N-PE insulation measurement), 50V, 100V,
250V, 500V,1000VDC
and the minimum limit reference
threshold choosing by the options:
0.10M
, 0.23M
,
0.50M
, 1.00M
, 100M
Confirm the choice by going back to the initial
measurement screen
