Measure Define Sub-Menu; Thresholds/Measurements Key - HP 54501A Operation Reference

Measure Define
Sub-menu
standard/user defined
Key
DEFINE MEAS
u s e r d e f i ne d
545011WF 2 \
thresholds/
measurements Key
DEf INE MEAS
I
meos
m ea s
def
im;
t
standa r d
measu r e ments
Define Measure Menu
1 1-4
The Measure Defme sub-menu allows you to select measurement
standards assigned by you, the user. This gives you the option of making
measurements based on signal width
parameters.
standard
If is selected, no other choices are available and the HP 5450lA
make measurements based on the IEEE standards for your particular
will
measurement.
user defined
If, however,
available to define your measurements.
This key allows you to set the vertical test conditions, voltage
percentage ratios, independent of the horizontal test conditio
slope, and count. Both sets oftest conditions must be set to define your
measurement.
The thresholds submenu allows you to set the vertical test conditions at:
o
•
percentage rati from
•
voltage levels from
The upper and lower thresholds must be set to levels that
on the displayed wavefonn. If either threshold is not on the
w avefonn the measurement results will be the message 'not
found.'
or
delay settings or threshold
is selected, two sets of test conditions are
-25% to 125%
-250 kV to + 250 kV
Note
or
n 't,
S , dge,
w ill
fall