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Keithley 236 Service Manual

Keithley 236
138 pages
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Page #68 background image
GOSUB
KeyCheck
PRINT
IAI,
“OUTPUT
10;
Z1X“
Enable
193A
zero
PRINT
‘Connect
236/237
output
to
test
fixture.“
GOSUB
KeyCheck
PRINT
IAI,
“OUTPUT
16;NIX“
Put
236/237
in
operate.
PRINT
IAI
“OUTPUT
16
;
COX“
Enter
ca
1
mode.
PRINT
“Performing
lOOmA
range
calibration
procedure.“
PRINT
“Presz
ESC
to
abort
procedure
and
restart
program.“
FOR
1
=
34
TO
41
Loop
for
all
lOOmA
cal
points.
IN$
=
INKEY$:
IF
IN$
CHR$(27)
THEN
PRINT
#1,
“CLEAR“:
GOTO
SeiCal
PRINT
1/1
“OtJTPUT
16
;
C“
;
1
;
“X“
Send
cal
command
to
236/237.
GOSUB
Delay
Settl
ing
delay.
PRINT
lfl,
“ENTER
10“
Get
reading
from
193A.
INPUT
112,
Vmsr
Imsr
=
Vmsr
1
RIO
•*
1NA
1OMA
CURRENT
RANGE
CALIBRATION
ROUTINES
263
amps,auto
range,guard
on.
I=1+1
PRINT
1,
1
“OUTPUT
NEXT
1
PR
1
NT
#
1
“OUTPUT
PR
1
NT
11
1
“OUTPUT
PRINT
IFI
“OUTPUT
RETURN
Compute
cal
current.
Increment
C
command
value,
1
6
;
C“
;
1
;
;
1
msr
;
“X“
Send
ca
1
val
ue
to
236
1237.
Loop
back
for
next
cal
point,
16;CS9X“
Exit
cal
procedure.
I6;NOX“
Put
236/237
in
standby,
IO;ZOR5X“
Disable
I93A
zero,
1000V
range,
CalLow:
CLS
PRINT
“lnA
lOmA
Current
Range
Calibration.“
PRINT
“Hake
sure
263
and
236
1237
are
properly
connected
(
see
Service
Manual
)‚“
PRINT
GOSUB
KeyCheck
PRINT
IAI,
“OUTPUT
O6;F1ROW1X“
1
NPUT
263
CHARACTER
1
ZAT
ION
PARANETERS
CharCheck:
INPUT
“Enter
263
characterization
parameters
(y/n)“;
IN$
IN$
=
LEFT$(
IN$
1)
IF
IN$
=
“N“
OR
IN$
=
“n“
THEN
GOTO
NoChar
IF
IN$
<>
“y“
AND
IN$
<>
“Y“
THEN
BEEP:
OOTO
CharCheck
PRINT
InChar:
PRINT
“Enter
ehe
following
263
characterization
parameters.“
PRINT
“See
Service
Manual
for
263
characterization
procedure.“
PR
1
NT
FOR
1
=
1
TO
5
Loop
for
all
parameters
PRINT
“Enter
parameter
for
263
;
char$(
1
);
;
Prompt
for
parameter,
INPUT
char(
1
)
Input
parameter.
NEXT
1
Loop
back
for
next
parameter.
NoChar:
FOR
1
=
1
TO
5
IF
char(1)
0
THEN
BEEP
PRINT
“Improper
characterization
parameters
are
presently entered,“
GOTO
InChar

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Keithley 236 Specifications

General IconGeneral
Voltage Source Range±100V
Current Source Range±100 mA
Voltage Measure Range±100V
Current Measure Range±100 mA
Voltage Range±100V
Current Range±100 mA
TypeSource Measure Unit (SMU)
Compliance LimitProgrammable
InterfaceIEEE-488
Resolution5.5 digits
Operating ModesVoltage source, Current source, Voltage measure, Current measure

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