
This feature
is useful when measuring
for
excessive
onershoot
or
ringing.
By
defining the measurements,
pasVfail
criteria
of
any
choice
can be
tested. Test from
the front
panel
or sct the HP
54510A
in
the limit
test
and allow
the oscilloscope
to
report
without
supervision.
Note
If
the user-d$ned
upper and
lower hresholdc
ale
placed
too
close
together, it is
possible
the HP
5451(H will
not
be ahk
to
determine the midpoint. The
message hotfound'will
be
displayed
in the mcasurcrnent
focton
arca
Measurcments
define
more
parameterg
the
horizontal
test
conditions,
for
three specific front
panel
kelpad
measurements:
DEFTNE MEAS
o
Delay
stondord
urements
o +
width
o
-
width
When
any
of the three
measurements
are selected,
the measurement
is
made
on the selected
edge count,
slope, and transition point.
The
HP
54510A starts
counting edges from the
left
edge
ofthe
screen,
not
at
the reference
point.
The
selected
edge
must
be displayed.
If
the
edge is
not displayed, the message not
found
is displayed
in
the measurement
results
area below the screen.
deloy =│::1
from
t
edge #
f
rom
ffl
edge #
2 ot mid
54501/WF67
HP 54510A
Front‐Panel Reference
Define Measure Menu
ll‐
5
Commentaires sur ces manuels