Keithley 237

~
SELECT
r>
SECTION2
Operation
I
SRCIMSR
I.
I
0001/SRC
I
I
0001/MSR
I.
I
0001/DLY
I
0001/6T
I
0001/MSR
I
I
0002/MSR
I
I
0003/MSR
I
I
SRCJMSR
I.
I
0002/SRC
I
I
0002/MSR
I.
I
0002/DLY
I
0002/6T
o:
I
SRC/MSR
I.
I
0003/SRC
I
I
0003/MSR
I.
I
0003/DLY
I
0003/bT
•
•
• •
•
•
•
•
• •
• •
•
• •
Rotary
Knob
I
SRC/MSR
I.
11000/SRC
I
11
000/MSR
1·
11000/DLY
I
1000/bT
11000/MSR
I
SAC=
Source
MSR
= Measure
DLY
= Delay
• Will display "COMPLI"
if in compliance
b
T = Elapsed Time
Figure 2-55.
Sweep
Buffer Data
Source
Measured
Data
Data
Measured
Value Reading
Point Source
Value
Point
Reading
1-
o1.0oo
v • 01.000
rnA
1
10001
•
01.000
V
SRC
I
I
0001
.01.000
rnA
MSR
I
1·
o2.ooo
v • 02.000
rnA
1
I
0002
• 02.000
v
SRC
I
I
0002 .Q2.000
mA
MSR
I
I·
03.000
v
COM.P~I
rnA
I
I
0003
•
03.000
v
SRC
I
I
0003
COM.PU
mA
MSR
1
Figure 2-56. Example Sweep Data
"window"
is
moved
around
in
the matrix
with
the
DATA
ENTRY rotary knob
and
the SELECT
buttons. The
rotary
knob
moves
the
"window"
vertically, while
the
SELECT
buttons
move
the
"window"
horizontally
in
the
array.
With RECALL enabled,
any
buffer location
(measure-
ment
point) can
be
displayed
by
keying
in
the
desired
lo-
cation
number
and
pressing ENTER. Entering a
value
that
exceeds the
number
of
stored
readings
will
default
the
display
the last
stored
measure
point.
NOTE
Figure 2-56
provides
example
data
for a three-
point
linear staircase sweep.
Refer
to
this
dra\'\'ing
for
the
following descriptions
of
the
data
stored
in
the
sweep
buffer.
Oa!a
Data
Data Measured
Poim
1ime
Delay
Point
Elapsed
1imes
Poir:t
Reading
I
0001
- 01.000
sec
o~
Y
I
I
0001
001.002
sec
:;
T
I
I
0001
·01.000
mA
MSR
I
looo2
•
01.000
sec
o~vl
I
0002
002.004
sec
:;T
I
I
0002 •02.000
mA
MSR
I
10003
•01.000
sec
o~vl
I
ooo3
003.005
sec
:;T
I
I
0003 •02.500
mA
MSR
:
Source/Measure
Group
The
source
values
and
subsequent
measured
readings
are
listed
for
every
data
point
of
the
sweep.
Notice
that
when
3V
was
sourced
(third
data
point),
the
Source
Measure
Unit
went
into compliance
and
displayed
the
compliance message
(COMPU).
Point/Source
Group
The
data
point
numbers
and
the
corresponding
source
(SRC)
values
are
displayed.
PointJM:easure
Group
The
data
point
numbers
and
the
corresponding
meas-
ured
(MSR)
readings
are
displayed.
Notice
that
since the
Source
Measure
Unit
went
into compliance
at
the
third
data
point,
the compliance message is
again
displayed.
2-93