HT instruments MACROTEST G3 - Manual (Page 25)

MACROTESTG3 - COMBIG3
EN - 24
6.3.1. AUTO mode
9. Press the GO/STOP key on the instrument or the
START key on the remote lead. The instrument will
start the measurement.
The screen to the side is shown on the display when
the hourglass icon indicates the performance of the
test.
10 The AUTO mode foresees the automatic execution of 6
measurements in a sequence:

IdN x 1 with phase 0° (the RCD must trip,reset the
switch, icon )
 IdN x 1 with phase 180° (the RCD must trip,reset
the switch, icon )
 IdN x 5 with phase 0° (the RCD must trip,reset the
switch, icon )
 IdN x 5 with phase 180° (the RCD must trip,reset
the switch, icon )
 IdN x½ with phase 0° (RCD must not trip)
 IdN x½ with phase 180° (RCD must not trip, end of
test)
11 The test has a positive result if all tripping times of molded case type STD comply with
what indicated in Table 4 (see § 12.4). The test has a negative result when one of the
values is out of range. During this whole stage, do not disconnect the measuring leads
of the instrument from the system on test.
12 At the end of the test, if the tripping time of each test
complies with what is indicated in Table 4 (see § 12.4)
the instrument shows the symbol to signal that the
test has been completed successfully, and displays a
screen similar to the one reported here to the side.
Press the SAVE button or touch the icon to save
the measurement (see § 7.1).
13 At the end of the test, if the tripping time of a test does
not comply with what is indicated in Table 4 (see §
12.4). the instrument shows the
symbol to signal
that the test has not been completed successfully, and
displays a screen similar to the one reported here to the
side.
Press the SAVE button or touch the
icon to save
the measurement (see § 7.1).
CAUTION
According to standard EN61008, the test for Selective differential switches
requires an interval of 60 seconds between the tests (30s for tests with ½ Idn).
The instrument display shows a timer indicating the time remaining before the
instrument can automatically perform the test.