Operator‘s Manual FERITSCOPE
®
FMP30
Page 187
Malfunctions and Messages
11 Malfunctions and Messages
11.1 Malfunctions
Malfunction/Message Cause
Correction
start
on
Page
No display
Instrument not switched
on.
Use
ON/OFF
to turn the
instrument on.
Instrument switched off
automatically (energy
savings function during
operation without AC
adapter
Use
ON/OFF
to turn the
instrument on.
Batteries are dis-
charged (operation with-
out AC adapter)
Replace rechargeable
or regular batteries with
new ones or operate
the instrument with the
AC adapter.
No display of the re-
sults with
FINAL-RES
No readings in the cur-
rent Application
(e.g., because the mea-
surement data have
been deleted).
Take measurements.
No display of the re-
sults with
BLOCK-
RES
No readings in the
current Application
(e.g., because the mea-
surement data have
been deleted).
Take measurements.
No change on the
display for
ZERO
,
CAL
or
MENU
Restricted operating
mode is enabled.
Use
ON/OFF + EN-
TER
to disable the re-
stricted operating mode
with the instrument
switched off before-
hand.