Contec CMS50D+ - Page 31

27
The
device
can not
be turned
on
1. The battery is
drained away or
almost drained
away.
2. The battery is
installed incorrectly.
3. The device’s
malfunction.
1. Please
change
batteries.
2. Please
Install the
battery again.
3. Please
contact the
local service
center.
The
display is
off
suddenly
1. The product will
enter standby mode
when no signal is in
the product within 5
seconds
2. The battery is
3. drained away or
almost drained
away.
1. Normal
2. Please
change
batteries.