GSC60
EN - 74
6.7.4. Anomalous situations in 3-wire and 2-wire earth measurements
1. When starting a measurement, if the instrument detects
an interfering voltage higher than 10V at the volt and
ampere circuits input, it does not perform the test and
displays the screen to the side.
2. When starting a measurement, the instrument checks
the continuity of measuring cables. If the voltmetric
circuit (red cable S and green cable ES) is
interrupted or its resistance value is too high, the
instrument displays a screen similar to the one on the
side.
Check that the terminals are properly connected and
that the rod connected to terminal S is not driven into a
pebbly or scarcely conductive ground. In this latter
case, pour water around the rod to decrease its
resistance value (see § 12.12)
3. When starting a measurement, the instrument checks
the continuity of measuring cables. If the ampermetric
circuit (blue cable H and black cable E) is
interrupted or its resistance value is too high, the
instrument displays a screen similar to the one on the
side.
Check that the terminals are properly connected and
that the rod connected to terminal H is not driven into a
pebbly or scarcely conductive ground. In this latter
case, pour water around the rod to decrease its
resistance value (see § 12.12)
4. When starting a measurement, the instrument checks
the situation of B2 (S) and B3 (ES) inputs. In case of
reverse of conductors on the installation it blocks the
test and the message is shown
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