EasyManua.ls Logo

Philips pm2521 - Page 48

Philips pm2521
152 pages
Save Page as PDF
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
47
SPECIAL
TRIGGER
MODE
WITH
DATA
HOLD
PROBE
PM
9263
(Refer
to
Fig.
27,
page
150).
—
Connect
the
PM
9263
with
the
DIN
plug
and
the
banana-plug
connector
(VL2-0)
to
the
corresponding
terminals
of
the
PM
2521.
—
Connect
a
zero
lead
to
the
probe.
This
can
be
done:
1.
With
separate
banana
lead
connected
to
the
0
socket
of
the
probe.
2.
With
the
zero
cable
which
is
supplied
with
the
PM
9263.
—
Select
the
most
suitable
test
pin
for
the
probe.
—
Push
the
slide
switch
(white
ring)
in
position
RUNNING,
away
from
the
probe
tip.
—
Measure
the
input
signal
as
described
under
heading
"Selection
of
the
sensitivity
ranges".
—
Select
the
correct
trigger
level
as
described
under
heading
"Selection
of
the
trigger
level"
in
"NORMAL
TRIGGER
MODE".
—
Select
function
s
with
the
function
selector
first.
—
Push
the
slide
switch
on
the
probe
to
position
HOLD,
towards
the
probe
tip
(Refer
to
Fig.
19).
Remark:
The
PM
2521
triggers
in
+
trigger
level
mode
at
a
positive
(start)
and
negative
(stop)
crossing
of
the
trigger
level.
In
—
trigger
level
mode
the
PM
2521
triggers
at
a
negative
(start)
and
a
positive
(stop)
crossing
of
the
trigger
level.
‘‘
5
8
DATA
HOLD
ZERO
PROBE
(FRONT
VIEW)
RUNNING
DATA
HOLD
*
ST
3165
620273
Fig.
19.
Data
Hold
connection
Time
measurements
*
—
Select
function
s
with
the
function
selector.
Remark:
The
PM
2521
will
display
the
time
between
two
crossings
of
the
trigger
level,
(++)
or
(-).
In
special
trigger
mode
the
trigger
points
are
(+
—)
or
(—
+).
The
time
measurement
is
started
at
the
first
crossing
and
stopped
after
the
second
crossing.
When
the
measuring
of
the
time
is
stopped
the
measured
value
will
be
displayed.
The
available
ranges
in
the
time
functions
are:
10"*s,
10^s,
10^s,
10^s,
10^s.
The
ranges
are
selected
automatically.
When
a
time
measurement
is
started
the
PM
2521
automatically
selects
the
10^s
range.
—
To
start
a
new
measurement
proceed
as
follows.
Reset
the
PM
2521
by
depressing
pushbutton
STOP/RESET.
Remark:
The
display
will
jump
to
zero
and
the
PM
2521
will
start
a
new
measurement
after
a
crossing
of
the
trigger
level.
—
To
stop
a
measurement
proceed
as
follows.
Depress
pushbutton
STOP/RESET
while
the
PM
2521
is
measuring.
Remark:
The
time
measured
will
be
displayed.
To
start
a
measurement,
depress
pushbutton
STOP/RESET
again.

Other manuals for Philips pm2521

Preview: Service Manual
Service Manual187 pages

Related product manuals