RKC INSTRUMENT SBR-EW180, User Manual, Page: 193 / 234

10-6
IMSBR10-E1
Is the input free of noise?
NO
YES
• Separate the input and
communication wiring from the
noise source.
• Ground the recorder properly.
• Use shielded cables for input and
communication wiring.
• Insert an isolation transformer
into the power line.
• Insert a power line filter into the
power line.
• If an inductive load is connected
to an alarm contact output, use a
surge suppresser on that line.
Contact your nearest
RKC dealer.
Display and other functions do not work properly.
Is the key lock released?
NO
YES
Release the key lock using the
FUNC key (see section 3.13).
Contact your nearest
RKC dealer.
Keys do not work.
10.2 Troubleshooting Flow Charts