Service manual
Model 5.'{(MA
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ieneral Informatinn
SECTION
IX D
5304A TIMER/COUNTER
SUBSECTION
I
GENERAL INFORMATION
9D-1-1. INTRODUCTION
9D-1-2. Description
9D-1-3.
The
Hewlett-Packard Model 5304A Timer
Counter, when plugged onto
an HP
Model 5300A
Measuring System,
is
capable
of:
Measuring
fre-
quencies
up to 10 MHz,
Time Interval measurements
from
500
nsec
to
10,000 seconds, Period Average
over
a
range
of 10 Hz to 1 MHz, and
Totalizing.
The
electrical
and
mechanical specifications
are
listed
in
Table 9D-1-1.
9D-1-4. Purpose
and Use of
Section
IX D
9D-1-5. Section
IX I)
contains
the
documentation
necessary
to
operate, maintain,
and
repair
the HP
Model 5304A Timer Counter plug-on. Also included
are
parts lists, component locators,
and
schematics.
This information
is
intended
to be
inserted into
the
5300A Measuring System manual
as
part
of
Section
IX of
that manual.
9D-1-6. INSTRUMENT IDENTIFICATION
91)1 -7.
Hewlett-Packard uses
a
two-section, nine-
digit serial number (0000A00000) mounted
on the
rear panel
to
identify
the
instrument.
The
first four
digits
are the
serial prefix
and the
last five digits
refer
to the
specific instrument.
If the
serial prefix
on
your instrument differs from that listed
on the
title page
of
this section, there
are
differences
between
the
manual
and
your instrument. Iiower
serial prefixes
are
documented
in
Section
IX I),
Subsection
VII and
higher serial prefixes
are
covered
by a
manual change sheet included with
the
manual.
9D-1-8. Manual Changes
and
Options
9D-1-9.
The
title page lists
the
serial prefix number
to
which this information directly applies.
If the
serial prefix
is
different from
the one
listed,
a
change sheet
is
included describing
the
required
changes.
If
this change sheet
is
missing,
the
infor-
mation
can be
supplied
by any
Hewlett-Packard
Sales
and
Service office listed
in
Section
VI of the
5300A Measuring System Manual. Options
are
listed
in
Section
IX I),
Subsection
VII.
9D I I