EX35x
‐
en
‐
GB_V1.2
12/15
9
4.
Operation
CAUTION:
Read
and
understand
all
of
the
Safety
statements
listed
in
the
safety
section
of
this
manual
prior
to
use.
Powering
the
Meter
1.
Turn
the
rotary
function
switch
to
any
position
to
power
the
meter.
Check
the
batteries
if
the
unit
fails
to
power
ON.
Refer
to
the
Maintenance
section
for
battery
and
fuse
replacements.
2.
Turn
the
function
switch
to
the
OFF
position
to
power
OFF
the
meter.
3.
The
meter
has
an
Auto
Power
OFF
feature
(APO)
where
the
meter
switches
OFF
after
15
minutes
of
inactivity.
When
APO
is
enabled,
the
APO
icon
will
show
on
the
display
when
the
meter
is
powered
ON.
To
disable
APO,
refer
to
the
next
section.
Disable
Auto
Power
OFF
The
meter
will
auto
power
OFF
after
15
minutes
of
inactivity.
To
defeat
this
feature,
follow
the
steps
below.
1.
With
the
meter
OFF,
press
and
hold
the
M
(MODE)
button
and,
while
continuing
to
hold,
turn
the
rotary
function
switch
to
any
position
to
power
ON
the
meter.
2.
The
meter
will
beep
5
times.
3.
Release
the
button.
4.
APO
will
now
be
disabled
until
the
next
cycle
of
power.
Display
Backlight
With
the
meter
powered
ON,
press
and
hold
the
backlight
button
for
two
seconds
to
switch
the
backlight
ON
or
OFF.
Note
that
excessive
use
of
the
backlight
will
shorten
the
battery
life.
When
the
power
supply
voltage
of
the
battery
falls
to
2.6V,
the
LCD
backlight
will
be
faint
or
unusable;
the
measurement
function
can
be
used
normally
however.
Data
Hold
To
freeze
the
LCD
meter
reading,
press
the
H
(HOLD)
button.
While
data
hold
is
active,
the
H
display
icon
appears
on
the
LCD.
Press
the
H
button
to
return
to
normal
operation.
The
H
icon
will
switch
OFF.