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MODEL 228A
Voltage/Current Source
QUICK REFERENCE GUIDE
INTRODUCTION
CONTENTS
CONDENSEDSPECIFIC~~TIONS ........................... 3
FRONT PANEL FENTURES ................................ 7
............................ 22
i .............................. 25
TVRES ................................ 30
10 ............................... 37
PROGRAMS ............................................ 42
BMPCarXT.. ........................................ 43
AppleII.. ..................... ........................ 45
HP85 ................................................. 47
HP9825A ............... ........ .......... ....... 48
HP9816.....................~.~................~ ...... 49
DECLSI I, ... ............................... ........ 50
PET,CBM2001.................................~ ....... 52
2
CONDENSED SPECIFICATIONS
AS A CONSTANT VOLTAGE SOURCE
3
AS A CONSTANT CURRENT SOURCE
COMPLIANCE
RANGE cJuTP"T ,I YR.. I8vwCI ,saurcs 01 sink,
ACCURACY" ACCURACY
MAW ,I YEAR, MAXI- II YEAR,
MUM 18W8T MUM 18v8T
0.m *o.ltmJA *,O.l%+0.,mA *,ol.o" *,o.l%+.K!ml",
+,O.lO" +iO.l%+ wmv,
GENERAL
SAFETY PRECAUTIONS
POWER UP SEQUENCE
7
STANDBY/OPERATE
VOLTS/MEMORY STEP
AMPS/DWELL TIME
DISPLAY MODIFY GROUP
DISPLAY MODIFY
0 SELECT 0 ENTER
SELECT
DECADE
ENTER
13
DATA
DATA
& e, A
A " ti
MOD e?
MEMORY CONTROL GROUP
MEMORY
CONTROL
1
STOP
0 0 STAR1
STOP/START
SINGLE STEP/SINGLE
CYCLE/CONTINUOUS
COMPLIANCE
STATUS GROUP
0 MODULATE I
0 MODULATE "
0 SINK ONLY
LOCAL
REMOTE/TALK/LISTEN
19
MODULATE l/MODULATE V
SINK ONLY
20
PROGRAM CONTROL GROUP
PROGRAM CONTROL
0 PROGRAM
0 CANCEL
PROGRAM
FRONT PANEL OPERATION
SOURCE MODE
SINK MODE
OPERATION
24
FRONT PANEL PROGRAMS
PROGRAM 1 COPY
PROGRAM 2 SINK ONLY
PROGRAM 3 IEEE
PROGRAM 4 MOD V
27
PROGRAM 5 MOD I
PROGRAM 6 TEST
28
PROGRAM 9 RESET
DESCRIPTION
OPERATION
29
QUICK DISCONNECT
SENSE
DESCRIPTION
OPERATION
32
I MONITOR
33
TRIGGER (IN and OUT)
TRlGGER
@ @J
DESCRIPTION
34
,
IEEE-488 PROGRAMMING
SF
MI
RP
TR
38
r 1
PROGRAMS
42
IBM PC or XT
(Keithley 8573 GPIB Interface)
43
PROGRAM COMMENTS
APPLE II
(APPLE Interface)
COMMENTS
Example: ,"= 1,.
lx?ma zs = CTRL-L.
HP 85
47
HP 9825A
PROGRAM COMMENTS
HP 9816
DEC LSI 11
PROGRAM COMMENTS
PET/CBM 2001
PROGRAM COMMENTS