Agilent Technologies 4349B - Page 219

C
Overload/No-Contact
Operations
Table
C-1
shows
the
summary
of
operations
when
the
4349B
detects
O
VLD
(Overload),
or
N.C.
(No-Contact). (Measurement
parameter:
R)
Table
C-1.
O
VLD/N.C.
Operations
(Meas
.
parameter:
R)
Display
Handler
Output
GPIB
Output
1
Solutions
Data
Mode
Comprtr
Mode
<
stat1-4 >
2
:
1
O
VLD
O
VLD
LOW /LO1-4 <
data1-4
>
:
9.9E37
Select
an
appropriate
measurement
range
.
(Overload) <
comp1-4
>
3
:
4
<
stat1-4
>
2
:
2
Cancel
the
bad
contact
between DUT
and
N.C. N.C. N.C. /NO
CONT
A
CT1-4
<
data1-4
>
:
9.9E37
contact-pin.
(No-Contact) <
comp1-4
>
3
:
8
O
VLD
/LO1-4 <
stat1-4
>
2
:
3
Select
an
appropriate
measurement
range
.
& O
VLD
LOW & <
data1-4
>
:
9.9E37
Cancel
the
bad
contact
between
DUT
and
N.C. /NO
CONT
A
CT1-4
<
comp1-4
>
3
:
12
contact-pin.
1
Refer
to
:FETCh?
in
Chapter
5
2
Measurement
status
(0:Normal,
1:Overload,
2:No-Contact)
3
Comparison
result
(1:In,
2:High,
4:Low
,
8:No-Contact)
Note
When
O
VLD
and
N.C.
are
detected
at
the
same
time
,
<
stat
>
and <
comp >
of
the
GPIB
output
are
the
sum
of
the
numbers
which
show
each
phenomenon.
Therefore
the
value
of
<
stat >
is 1(O
VLD)+2(N.C.)=3, the
value of
<
comp
>
is
4(Low)+8(N.C.)=12.
When
the
measurement
parameter
is
I,
High
or
Low
status
in
the
operation
of
handler/GPIB
output
and
display
is
reversed
as
shown
in
T
able
C-2
.
Overload/No-Contact Operations C-1