HP 203A - Variable Function; Square Wave Check; Phase Lag Check

Model 203 А
®203A
VARIABLE PHASE
FUNCTION GENERATOR
REFERENCE
PHASE
OUTPUT
VARIABLE y
PHASE OUTPUT
Section V
Paragraphs 5-8 to 5-9
Figure 5-5
ELECTRONIC COUNTER
%523С
203A-M- 14A
Figure 5-5. Phase Lag Check
9-8. SQUARE WAVE CHECK,
а.
Connect
Model
203A
as
shown
in
figure
5-4.
b. Set instrument controls as follows:
Model 203A
FREQUENCY
................
10
MULTIPLIER
за
зуы
44
100
"UAMPLITUDE
(2)..........
both
CW
Oscilloscope
Е
en
a
e
oa
ED
a
e
A
DC
SENSITIVITY
...........
‚5
У/СМ
SWEEP
TIME
.........
1
MSEC/CM
TRIGGER
SOURCE
..........,
INT
TRIGGER
SLOPE
«5-233
uo
OEC
(+)
c.
Adjust
Model
203A
FREQUENCY
dial
so
that
one
cycle
of
square
wave
fills
exactly
10
em
of
hori-
zontal
deflection.
d.
Zero
crossing
of
square
wave
should
occur
between
4,8
and
5.2
cm
from
start
of
sweep.
Peak-
to-peak
voltage
should
be
at
least
15
volts,
e. Set Oscilloscope SENSITIVITY to. 5v/cm. Ad-
just
VERTICAL
POSITION
to
bring
first,
the
top
of
the
square
wave
into
view,
then
the
bottom
of
the
Square wave.
f. Overshoot should not be more than 5% of the
amplitude
(1.
5
cm).
8. Set Oscilloscope SWEEP TIME to. 1uSEC/CM;
SENSITIVITY
to
.5
V/CM.
01760-2
В.
Square
wave
rise
time
should
be
less
than
0.2
usec
from
10%
to
90%
points.
j.
Set
Oscilloscope
TRIGGER
SLOPE
to
(-}.
К.
Square
wave
fall
time
should
be
less
thanO.
2
|
usec
from
10%
to
90%
points.
|
m.
Repeat
steps
b
thru
k
at
various
frequencies.
бі.
АП
ranges,
п.
Repeat
steps
a
thru
m
for
VARIABLE
PHASE
П.
OUTPUT.
9-9.
PHASE
LAG
CHECK.
a.
Connect
Model
203A
as
shown
in
figure
5-1,
b. Set instrument controls as follows:
Model 203A
MULTIPLIER
444—145»
акк
10
FREQUENCY .,..... approximately 27
~
АМРЫТООЕ...........
both
CW
Electronic Counter
FUNCTION SELECTOR. ....., PERIOD
STD.
FREQ,
COUNTED
........
1
МС
c.
Adjust
Model
203A
FREQUENCY
dial
for
Electronic Counter reading of 3600,
d.
Connect
Model
203A
as
shown
in
figure
5-5,
.
e,
Set
Electronic
Counter
controls
as
follows:
FUNCTION
,.......
TIME
INTERVAL
ТЕІССЕЕІКРОТ.............
SEP
TRIGGER
SLOPE,
..........
both
(+)