Sonel PAT-80, User Manual

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PAT-80
● PAT-85 ● PAT-86 – USER MANUAL
48
NOTE!

During the measurement, the same mains voltage is present at the measuring
socket which powers the tested appliance.

During the measurement of a faulty appliance, RCD switch may be triggered off.

Differential leakage current is measured as a difference between L current and N
current. This measurement takes into account not only current leaking to PE, but al-
so currents leaking to other earthed elements - e.g. water pipe. The disadvantage of
this measurement is the presence of common current (supplied to the tested appli-
ance through L line and returning via N line), which influences the measurement ac-
curacy. If this current is high, the measurement will be less accurate (see
sec. 13 )
than the measurement of PE leakage current.

The tested appliance must be turned on.

When Change polarity is set on Yes , after the set time duration is over the tester
automatically changes the polarity of the test mains socket and resumes the test.
As a test result it displays the value of the higher leakage current.

The result of measurement may be affected by the presence of external fields and
by the current used by the appliance.

If the tested appliance is damaged, signaling a 16 A fuse burnout may also mean
that the overcurrent protection device in the mains from which the meter is powered
has tripped.