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Model 339
A
Section
IV
SECTION
IV
PERFORMANCE
TEST
4-1.
INTRODUCTION.
4-2.
This
section
contains
performance
test
procedures
which can
be used
to verify that
the
Model 339A
meets
the specifications
listed
in
Table
1-1.
All
tests
can
be
performed
without
access
to
the
interior
of
the
instrument.
A
simpler
operational
verification
procedure, included
in
Section
III,
may
be used
to
check
the
operational capability of
the
339A.
The
operational
pro cedures
do
not,
however, check
specified
accuracy
of
instrument.
4-3.
EQUIPMENT
REQUIRED.
4-4.
The
test
equipment
required
for the
performance
tests
is
listed
at
the
beginning
of
each procedure
and
in
the
Recommended
Test
Equipment
Table
in
Section
I.
If
the
recommended
equipment
is
not
available,
any equipment
that
meets
the
critical
specifications
given
in
the table
may
be
substituted.
4-5.
TEST RECORD.
4-6.
A
Performance
Test
Record
is
included
at
the
end
of
this
section
for
your
convenience
in
recording
performance
data.
This record
may
be
removed from
the
manual and
used
as a
permanent
record of
the
incoming
inspection
or
of
a
routine
performance
test.
The
Performance
Test
Record
may
be
reproduced without
written
permission of Hewlett-Packard.
4-7.
CALIBRATION
CYCLE.
4-8.
The Model 339A
requires periodic verification of
performance.
The
performance should
be
tested as part
of
the
incoming
inspection
and
at
90
day
or 6
month
intervals,
depending
upon
the
environmental
conditions
and your
specific
accuracy requirements.
4-9.
VOLTMETER PERFORMANCE
TESTS.
4-10.
The
following procedures
check
the
accuracy
of the
voltmeter
section of the
339A. These procedures should
be
performed and
the
voltmeter accuracy
verified
before
performing
the Distortion
Analyzer Performance
Tests.
4-11. Full-Scale
Accuracy
and
Frequency
Response
Test.
Equipment
Required:
AC
Calibrator
(-hp-
Model
745A)
High
Voltage Amplifier
(-hp-
Model
746A)
Figure
4-1.
Full-Scale
Accuracy and Frequency
Response
Test.
4-1
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