3-8
Help
input
Problem
Solving Measurement
Problems
The HP 8901B has been designed to feed back information about its
operating status. When the
HP
8901B detects that the input signal or
operating conditions are preventing it from making an accurate, reliable
measurement, it alerts you by placing an error or dash code in its display.
Operating
Problem
The circumstances that can cause the HP 8901B to display an error code are
classified into one of
two
categories:
0
Input Problem,
caused by input signal conditions, or
0
Operating Problem,
caused by the selection of incompatible
operating functions.
Error
Certain errors are caused
only
by
an input problem,
other errors are caused
only
by
an operating problem,
and some errors can be caused by either.
05,
08,
10,
or
16
09,
11, 12, 20
thru
24,
or
26
The errors that can be caused
only
by
an input problem
and the errors that
can be caused
only
by
an operating problem
are listed in the chart below.
If
your instrument
is
displaying one of these errors, proceed directly to
Table
3-1.
Modulation and
Audio
Error
Codes
and take the recovery
action recommended.
If you
did
not find your error listed
in
the chart, or
if
your instrument
is
displaying dashes or a questionable measurement, perform the
following procedure.
1.
Press the
green
AUTOMATIC OPERATION
key.
This
cancels all
function settings that can cause the HP 8901B to display an error code.
2.
Compare the operating status of your
HP
8901B
after
pressing the
AUTOMATIC OPERATION
key
with
the following list
of
conditions.
After you have identified the description that best describes your
instrument's condition, take the action recommended for that condition.
Same
Error
If the error or reading remains the same after the
AUTOMATIC OPERATION
key has been pressed, the error is being caused by an input problem.
Look up the error code
in
Table 3-1 and take the action recommended for
"Input Problem".
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