HP 8508A - Warm-Up Time

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Adjustments
Adjustments
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Section
5
2 . .
5-1 INTRODUCTION
This
section
describes
the
adjustment
procedures
required
to
enable
the
Hewlett-Packard
8508A
Vector
Voltmeter
to
meet
the
specifications
listed
in
Table
1-2
of
the
Probe
Input
Module
manual.
Adjustments
should
only
be
made
after
determining
that
the
instrument
is
out
of
calibration
or
if
a
repair
has
been
carried
out.
5-2 WARM-UP TIME
The
HP
8508A
must
be
switched
on
for
a
minimum
of
30
minutes
before
carrying
out
any
adjustments.
This
allows
the instrument operating temperature to stabilize.
5-3 SAFETY CONSIDERATIONS
WARNING
PROCEDURES
DESCRIBED
IN
THIS
SECTION
ARE
PER-
FORMED
WITH
THE
PROTECTIVE
COVERS
REMOVED
AND
POWER
SUPPLIED
TO
THE
INSTRUMENT.
SERVIC-
ING
SHOULD
ONLY
BE
PERFORMED
BY
TRAINED
PER-
SONNEL
WHO
ARE
AWARE
OF
THE
HAZARDS
INVOLVED.
Anti-Static Precautions
The
printed
circuit
boards
contained
in
this
instrument
have
components
and
devices
which
are
susceptible
to
damage
by
electrostatic
discharge
(ESD).
To
minimize
the
risks
of
damaging
or
decreasing
the
reliability
of
the
instrument,
the
following
procedures
and
cautions
should
be
observed
when
servicing
the
instrument.
Static-free Workstation
All
servicing
should
be
carried
out
at
a
static-free
workstation
wherever
practical.
De-soldering
When
de-soldering
components,
ensure
that
the
soldering
iron
is
grounded.
Always
use
a
metalized
solder
remover.
E1089 . 5-1