UTD2000M
User
Manual
Warning:
To
avoid
electrical
shock
when
probes
are
used
in
measuring
high
voltage,
please
ensure
that
their
insulated
wire
is
in
good
condition
and
do
not
touch
any
metal
part
of
them
when
they
are
connected
to
high
voltage
source.
Remark:
When
the
“attenuation”
switch
of
the
probe
is
turned
to
1
×
,
the
bandwidth
of
this
instrument
will
be
limited
by
the
probe
to
6MHz.
In
order
to
use
its
full
bandwidth,
please
ensure
that
the
switch
has
been
turned
to
10
×
.
1.5
Run
Auto
Calibration
Program
Running
auto
calibration
program
can
realize
the
best
accuracy
of
instrument.
You
can
run
this
operation
at
any
time.
But
it
is
a
must
whenever
the
changes
in
ambient
temperature
reaches
5
℃
or
more.
To
run
auto
calibration
program,
please
follow
the
following
steps.
1.
Disconnect
all
probes
or
power
cables
from
the
channel’s
input
connector;
2.
Press
UTILITY
key;
3.
Press
F1
key
to
select
“system
configuration”
displayed
at
the
right
of
the
displayer;
4.
Press
F1
key
to
select
“auto
calibration
program”;
5.
Press
multi
‐
function
knob
to
confirm
the
execution
of
auto
calibration
program,
and
it
may
take
several
minutes
to
complete
this
process.
1.6
Auto
Setup
for
Waveform
Display
This
instrument
has
auto
setup
function
that
can
auto
adjust
the
vertical
scale
coefficient,
time
base
and
trigger
mode
in
accordance
with
the
input
signal
until
the
most
appropriate
waveform
has
been
displayed.
It
requires
the
frequency
of
the
signal
under
test
to
be
no
less
than
40Hz
and
the
duty
ratio
to
be
more
than
1%.
Auto
setup
steps:
1.
Connect
the
signal
under
test
to
signal
input
channel;
2.
Press
AUTO
key
so
that
it
will
auto
adjust
the
vertical
scale
coefficient,
time
base
and
trigger
mode.
In
case
you
need
to
have
clearer
observation,
when
auto
setup
completes,
please
perform
manual
adjustment
until
you
get
the
best
waveform
displaying
effect
that
you
want.
1.7
Set
Time
and
Date
To
set
time
and
date,
please
follow
the
following
steps:
1.
Press
UTILITY
key;
2.
Press
F1
to
enter
into
“System
Configuration”.
3.
While
in
“System
Configuration”,
press
F4
to
select
“time
setup”.
Then
use
menu
keys
located
to
the
right
ride
of
the
displayer
and
multi
‐
function
knob
to
set
time
and
date.
4.
Press
“Confirmation”
to
save
the
set
time
and
date
when
setup
completes.
1.8
Preliminary
Understanding
of
Vertical
System
As
shown
below,
there
are
a
number
of
keys
and
knobs
located
within
the
vertical
control
area.
The
following
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