HP 4145A Operating And Service Manual page 49

Semiconductor parameter analyzer
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SECTION III
Table 3-3. Operational
Error-Codes
(Sheet 2 of 2)
Model 4145A
Display
Error
204
Meaning
The test fixture
lid is open during an auto-sequence
program
in which
the output
voltage
may exceed
+42V.
Press CONT
to perform
the
next step of the auto- sequence program.
Data Errors
Depending
on the number
of channels used in the measurement,
up to
six 2-digit
numbers
are
displayed,
in the
format
shown
below,
whenever
the measurement
cannot be performed
correctly.
Error
DXX
XX XX XX XX XX
Here,
XX is a 2-digit
number
which represents
channel status.
The
left-to-right
order in which the 2-digit
error codes appear corresponds
to the order
in which the channels
are assigned on the MEAS/DISP
MODE SETUP page.
Also, the number
of 2-digit
error
codes that
appear
is
identical
to
the
number
of
channels
used
in
the
measurement.
The left
digit
of XX is hexadecimal
and must
be
converted
into a 4-digit
binary number,
as described
below.
The right
digit is decimal and requires no conversion.
Also, zero means no error.
xx --
-'
1 :
Stack register
overflow
2:
Calculation
error
3:
Insufficient
data for d measurement
7:
Undefined
user-function
8:
INTERVAL
in a time
domain
measurement
is too short.
Complete
measurement
data cannot
be stored
before
the
..,
next measurement
begins.
Convert hexadecimal
number into binary.
LIIII
L
L
L
A/D
converter
saturated.
Oscillation
Other channel has reached compliance
limit.
This channel has reached compliance
limit.
Channel correspondence
is shown below :
GRAPHICS
PLOT :
Error
LIST DISPLAY :
DXX
X axis
xx
Yl axis
xx
Y2 axis
Error
DXX
XX
XX
XX
XX
XX
1st
2nd
3rd
4th
5th
6th
MATRIX
DISPLAY,
SCHMOO
PLOT :
Error DXX
3-16

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