Keithley 263 User manual
Model263
Calibrator/Source
Quick ReferenceGuide
INTRODUCTION
This quick reference guide contalne descriptions of parlous
features and Information concerning the operation of the
Model 283. Also included are programming examples using
VBrlous COntr011wa.
Q1997, Keithley Instruments. Inc.
Instruments Division
Cleveland. Ohio, U.S.A.
Document Number: 283-903-01 Rev. A
TABLE OF CONTENTS
SAFETY PRECAUTlONS 3
FRONT PANEL OPERAflON 4 : j
CONNECTORS IRear Panell.. 9
PROGRAMMING OUTPUT VALUES 10 i i
SOURCING METHODS 11 ; ~
GUARD 13 ‘~I
FRONT PANEL PROGRAMS. 16 i
IEEE-488 PROGRAMMING.. 17
PROGRAMS 23
IBM PC or AT ICEC PC < > 488 Interface1 24
IBM PC or AT ,National GPIS PC Interface,. 26
APPLE II 28
HP85................................ 30
HPSERlES300and.9816 ,,,,,,,,,,,,,.,,, 32 ; j I
HP9925A............................. 34 :
DECLSIll ,...,,.,,,,,,,,,,,o,,,,.,,, 36 i ,! _
SAFETY PRECAUTIONS
1. Before operation, ground the instrument through a prop-
erly earth grounded power receptacle.
2. Before sevlcing, disconnect the instrument from the
power line and all other equipment, and consult the Model
263 InstructIon Manual.
3. Do not touch any terminals while the Instrument Is oon-
nectsd to any other test equipment.
3
I
FRONT PANEL OPERATION
POWER-Controls AC line power to the instrument. i ;
I
~I
1~~>
,
SHIFT-Several controls have secondary functions that are
selected by first pressing SHIFT and then pressing the ap- 1 :
propdate button.
: I
FUNCTION GROUP
FUNCTION
OHM9
o=
VOLTS EX
OmH
AMPS
f=-l
OYAV/Rm
OB-'
OHMS-Pressing the OHMS button configures the Model
263 as a resistance source. The value of the reslstanoe will
be displayed.
VOLTS-Pressing the VOLTS button conflgures the Model
263 88 a voltage 80”~~ The voltage VBIUBwill be displsyed.
Pressing SHIFT VOLTS configures the Model 263 to output
an external wurce applied to the EXT INPUT and COMMON
terminals on the rear panel. The EXT indicator turns on and
the message “USE, V” 18displayed.
AMPS-Pressing the AMPS button configures the Model :
263 as an active current source. The programmed current
value will be dlsplayed.
Pressing SHIFT AMPS turns on the V/R light indicating that
the Model 263 is configured as a passive current aouroe. I
COUL-Pressing the COUL button conflgures the Model
263 8s an active charge 8ouroe. The currently selected :
range and programmed charge value will be displayed.
Pressing SHIFT COUL turns on the VIR light indicating that ’ ’
the Model 263 is configured as a passive charge source.
CONTROLGROUP
6
RANGE-These two buttons are used to swleot the range
of the selected function. RANGE A upranges the Instru-
ment and RANGE V downranges.
CURSOR-These two buttons are used to position the our-
sot when using the Adjust Method to modify an output
valuw. CURSOR C moves the cursor from left to right and
conversely, CURSOR 4 moves the cursor from right to left.
Not functional In OHMS.
Pressing SHIFT ON/OFF the first time displays the flashing
cursor continually. Pressing It again disables the cursor. Not
functional in OHMS.
ADJUST-These two buttons aro used to modify the display
reading using the Adjust Method. ADJUST A increments
the reading at the seleotnd dlglt and ADJUST T decrements
the reading. Not funotional in OHMS.
KEYPAD/ENTER-Pressing this button enables the keypad
allowing an output value to be keyed in using the number
10through 91buttons and the + button IKeypad Method).
Pressing this button *gain enters the resdlng and disables
the keypad. Not functional in OHMS.
SHIFT CANCEL-Pressing this button after keying in B
reading (Keypad Method) canoels that reading and disables
the keypad.
+/- Toggles the displayed reading (except OHMS1 bet-
wsen posltlve (t) and negative l-l polarity. Not functional
in OHMS.
ZERO-Toggles the display between zero and the previously
displayed reading.
SHIFT GUARD-Toggles the output configuration between
guarded and unguarded.
7
MENU-Used to Sslsot front panel program& Program
parameters are modified by the ADJUST buttons. Pressing
MENU after modifying a program parsmeter enters the new
parameter and returns the instrument to normal operation.
OPERATE-Toggles the instrument between the standby and
operate conditions.
8
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