MDtest (100-140 V) - User’s Manual
7
Additional informations
Figure 24: Warning message: PE error
Interference voltage at the input
The device has blocked the measuring. The cause may be:
•
Interference voltage on the DUT
The measuring instrument tests (before start of Riso and Rpe measurements)
if interference voltage is not present on the DUT.
If the warning message (Figure 25) appears, then check the disconnection of
the DUT from the mains. Another reason could be that the measuring leads
are too long. Please, use the original leads only.
•
Interference voltage in the mains
If during measurement a greater interference in the mains occurs, the MDtest
disables the measuring and the warning message (Figure 25) appears.
In this case, repeat the measurement later.
Figure 25: Warning message: Interference voltage at the input
Current >10.00 mA
If the leakage current of the appliance exceeds approximately 10.00 mA, power
supply is disconnected from the Test Socket
1
, then an acoustic signal sounds and
the display shows the warning message (Figure 26).
c
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www.illko.cz
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