HP 8901B Operation And Calibration Manual page 96

Help 2-9
Solving Measurement
Problems
The HP 8901B has been designed to feed back information about its
operating status. When the HP 89018 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.
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.
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.
The errors that can be caused only by an input problem and the errors that
can be caused onZy by an operating problem are listed in the chart below.
If your instrument is displaying one of these errors, proceed directly to
Table
2-3.
RF Frequency and Frequency Error, Error Codes, and take the
recovery action recommended.
Input
Problem
Operating
Problem
I
I
Error
1
10
I
09, 12, 20
thru 24,
or 26
If you did not find your error listed in the chart or if your instrument is
displaying dashes or a questionable measurement, continue with the
following procedure.
1.
Press the green
AUTOMATIC OPERATION
key. This cancels all
function settings that can cause the I-IP 8901B to display an error code.
2. Compare the operating status of your HP 8901B
after
pressing the
AUTOMATIC OPERATION
key with the following condition descriptions.
After you have identified the description that best describes your
instrument's condition, take the action recommended for that condition.