HT instruments MACROTEST G3 - Manual (Page 31)

MACROTESTG3 - COMBIG3
EN - 30
11 If the instrument detects a voltage Vn-pe > 50V (or the
analogue Vn-pe >25V) it provides the warning screen
shown to the side and blocks the test for safety
reasons. Check the PE conductor and earth plant
efficiency
12 If the instrument detects in the input terminals a too
high external impedance such that it can not provides
the nominal current, it provides the warning screen
shown to the side and blocks the test. Disconnect the
possible loads downstream the LCD before perform the
test
13 For only RCD type B if the instrument is not able to
provide for the charging of the internal capacitors of the
RCD, it provides the warning screen shown to the side
and blocks the test. Check that the VL-N voltage should
be more than 190V
14 For only RCD type B if the instrument detects a input
voltage VL-N <190V, it provides the warning screen
shown to the side and blocks the test. Chech the values
of the voltages on the installation
15 For test on earth leakage relay RCD if the value set
for the rated current of the protection device is out of
the allowed range, the instrument provides the warning
screen shown to the side and stops the tests. Change
the value of the rated current of the protection device