Description And Purpose; Instrument And Manual Identification; Equipment Supplied; Accessory Equipment Available - HP 3400A Operating And Service Manual

Model 3400A
Section
I
SCOPE OF
MANUAL
This manual contains the information necessary
for
oper-
ating
and
servicing the
standard Model 3400A
RMS
Voltmeter
and
the
Model 3400A/Option 01
RMS
Voltmeter
(DB
scale
uppermost).
SECTION
I
GENERAL INFORMATION
1-1.
INTRODUCTION.
1-2. This
section contains general information about
the
Model
3400
A RMS
Voltmeter
(Figure
1-1). In-
cluded are: description
of
instrument, purpose,
in-
strument
identification,
equipment
supplied and
accessory equipment
available.
Also
included
is
a
table of
instrument
specifications.
number
on your instrument does
not
agree with those
on
the
title
page
of this
manual, change sheets supplied
with the
manual
will
define the differences between your
instrument and
the
Model 3400A
described
in
this
man-
ual.
Some
serial
numbers may
have a letter
separating
the
two
sections
of
the
number. This
letter
indicates
the country
in
which
the
instrument
was
manufactured.
1-12.
EQUIPMENT
SUPPLIED.
1-3.
DESCRIPTION AND
PURPOSE.
1-4.
The Model 3400A
RMS
Voltmeter measures
the
actual
root-means-square (RMS)
value of
ac voltages
between 100 microvolts and 300
volts.
Frequency
range
is
from
10
Hz
to
10
MHz.
Full scale
measurements
of
nonsinusoidal
waveforms
with crest
factors
(ratio
of
peak
voltage to
rms
voltage)
of
10
can be made.
1-5.
Ac
voltages are
measured
with a specified
full-
scale
accuracy
of
±1%
from
50
Hz
to
1
MHz, ±2%
from
1
MHz
to 2
MHz,
±
3% from
2
MHz
to
3
MHz,
and
±5%
from
10
Hz
to 50
Hz
and
3
MHz
to 10
MHz.
A
single front panel control selects one
of
12 voltage
or decibel ranges.
1-6.
The Model 3400A
crest factor rating
is
10:1
which enables
full
scale
readings
for pulses
which
have a
1%
duty cycle. At l/10th
of full scale,
pulse
trains with
0.
01%
duty cycle (100:1 crest factor)
can
be accurately
measured.
1-7.
The Model 3400A
provides a
dc output
which
is
proportional
to
the front panel
meter
reading.
By
using
this
voltage
to
drive auxiliary equipment, the
Model 3400A
functions as an
rms
ac-to-dc converter.
1-8.
SPECIFICATIONS.
1-9.
Table 1-1 contains the specifications for the
Model
3400A.
1-10
INSTRUMENT
AND MANUAL
IDENTIFICATION.
1-11. Hewlett-Packard uses a
two-section
serial
num-
ber.
If
the
first
section (serial prefix)
of
the serial
1-13.
The equipment
supplied with each
Model 3400A
is listed
and described
in
Table
1-2.
Table
1-2.
Equipment
Supplied
IDENTIFICATION
NUMBER
QUANTITY
DESCRIPTION
10110A
1
Adapter
(BNC
to
dual
banana
jack)
8120-1348
1
Power Cord
03400-90008
1
Operating and
Service
Manual
1-14.
ACCESSORY EQUIPMENT
AVAILABLE.
1-15.
The
accessory equipment
available
is listed
in
Table
1-3.
For
further information contact
your
local
-hp- Sales and Service
Office. (See
Appendix
B
for office locations.
)
Table
1-3.
Accessory Equipment
Available
IDENTIFICATION
NUMBER
DESCRIPTION
10503A Cable (Male
BNC
to
male
BNC,
48 inches)
11001A
Cable (Male
BNC
to
dual
banana
plug,
45 inches)
11002A Test Lead
(dual
banana
plug
to alligator clips, 60 inches)
11003A
Test
Lead
(dual
banana
plug
to
probe and
alligator
clip,
60
in.
)
456A Current Probe
01768-4
1-1