Keithley 237 - Page 85

+
SECTION2
Operation
Operating
Fundamentals
(De
Operation)
Operation
Overview
Preliminary information explains the various display
messages that may be encountered (Table
2-3)
and
pro-
vides the details for entering data into the Source
Meas-
ure
Unit
from the front panel (paragraph 2.9).
The fundamental steps for basic de operation are as fol-
lows:
1.
Configure MENU items (paragraph
2.10).
MENU is
used to set de delay, default delay, sensing, ac line
frequency
and
the
IEEE-488
interface address.
2.
Select source
and
function. Paragraph
2.11
covers se-
lection of the source (Source I Measure
V
or
Source
V
Measure
I)
and
function (de operation
or
sweep op-
eration).
3.
Set
compliance
and
measurement range as described
in paragraph
2.12.
4.
Enable AUTORANGE
if
it
is to be used.
AUTO-
RANGE is used for measurements
and
is covered
in
paragraph
2.13.
5.
Place the
Source
Measure
Unit
in
OPERATE
and,
if
needed, provide a trigger stimulus to apply the
source to the output (paragraph
2.14).
Other features that can be
used
include control of integra-
tion time (paragraph
2.15),
filter (paragraph
2.16)
and
suppress (paragraph
2.17).
+
2.8
DISPLAY MESSAGES
The various display messages associated with instru-
ment operation are listed
in
Table
2-3.
Pressing a front panel button
will
remove the existing er-
ror
or
warning message
and
any pending messages.
If
no
buttons are pressed, the message is displayed for 0.8sec.
2.9
DATA ENTRY
Q
7
8
•
IIENU
DOD
De
• •
•
EXP
DOD
D
1
• •
CANCEL
DOD
D
0
+J.
ENTER
DOD
D
DATA
ENTRY
Data Entry controls are used to enter source
and
compli-
ance values. Also, they are used to select
menu
items
(such as filter, integration time, create, setup, menu, etc.)
and
enter their respective parameters.
2-33