HP 3400A Service Manual

Maintenance
:
Model
3400A
5-13.
Crest
Factor
Check
a.
Connect
test
setup
as
illustrated
in
Figure
5-4.
b.
Set
Model
3400A
Range
switch
to
1
volt
position.
c.
Adjust
Pulse
Generator
for
pulse
output
with
the
‘eaiowiiig
characteristics:
Pulse
Rate
-
990
pps
as
indicated
on
electronic
counter.
Pulse
Width
-
10
psec
as
indicated
on
electronic
counter
in
time
internal
mode.
Pulse
Amplitude
-
7.07
volts
as
indicated
on
Model
410C.
NOTE
The
410C
responds
to
the
positive
peak
above
the
average
of
the
input
waveform.
Since
the
Model
410C
is
calibrated
to
read
the
rms
value
of
a
sine
wave
a
correction
factor
is
required
to
measure
pulse
amplitude.
The
correction
factor
under
these
conditions
is:
Eb.
E = T
ate
V2
|
Teal
T2
see waveform
'
eo
E=T
+T,
i+
e—_—
E = T,
410 n/2 (1 +—
T,
Ep=Epp (1-0)
= 7.07V
Estoc
.
ELECTRONIC
PULSE
GENERATOR
yo
backs
Sree
pelts
RMS
VOLTMETER
Apsioc
ELECTRONIC
COUNTER
hp5381A
scos
esoeoe
asasoo
coseee
oc
69
SSeS.
wc
FO:
4
sc
OO
o
Qo
Apnoies
ADAPTER
ON
Api2zs0-0072
Figure 5-4. Crest Factor Test Setup

HP 3400A Specifications

General

Brand	HP
Model	3400A
Category	Measuring Instruments
Language	English