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9. Operating Instructions
(1) Verifying Wiring Integrity.
Plug the tester into the
Mains power socket (wall)
and check the neon lamps.
When the wiring is correct,
all the neon lamps will lit
together.
If there is no earth connection
to the tester, only the neon
lamps A and B will light up.
The C neon lamp will not be
lit.
If the neutral wire is not
connected to the tester,
only the neon lamps B and
C will light up. Neon lamp A
will be off.
Содержание BST-ET14
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