Keithley 263

List of Illustrations
SECTION 2 - Getting Started
2-l
Model263FrontFanel......................................................................
2-2
2-2
Model263I~earPanel.....................................................,,...............
2-4
2-3
Data Entry Controls -Adjust Method.
2-6
24 Data Entry Controls-Keypad Method.
2-7
SECTION 3 - Operation
3-l
LineVoltageSwitch
........................................................................
3-1
3-2
voltagesource .............................................................................
3-3
3-3
ExternalSource
............................................................................ 3-4
3-4
Active Current Source (Unguarded).
.........................................................
3-5
3-5
Passive(V/R)CurrentSource ................................................................
3-6
3-6
Data Entry Controls -Adjust Method,
........................................................
3-7
3-7
Data Entry Controls - Keypad Method.
....................................................... 3-9
3-8
UnguardedCircuit .........................................................................
3-l 0
3-9
GuardedCircuit ...........................................................................
3-11
3-10
OhmsOutputConhgurabons
.................................................................
3-12
3-11
Sourcing Guarded Ohms to Electrometer that has a Selectable Guarded Input.
.....................
3-12
3-12 Sourcing Guarded Ohms to Electrometer Using an Input Adapter,
...............................
3-13
3-13
Amps/Coulombs Output Configurations
.....................................................
3-16
3-14
Sourcing Amps to a Feedback Picoammeter
...................................................
3-17
3-15
Sourcing Guarded Amps to a Shunt Picoammeter Using an Input Adapter
........................
3.17
3-16
GuardingforHighImpedanceLoad ..........................................................
3-18
3-17
UsingI’REAMI’OUTGuard
................................................................
3-l 8
3-18
VoltsOutputConfiguration .................................................................
3-19
3-19
Using I’reamp Out to Monitor Load Voltage.
.................................................. 3-20
3-20
output Connector Configuration
.............................................................. 3-21
3-21
Unguarded Sourcing to Electrometer
.........................................................
3-22
3-22
Connecting External Voltage Source to Model 263.
.............................................
3.24
3-23
SourcingtoaLoad .........................................................................
3-25
3.24 Burden Voltage Considerations
..............................................................
3-27
3-25
UnguardedTriaxCable .....................................................................
3-28
3-26
GuardedTriaxCable .......................................................................
3-29
SECTION 4 - IEEE-488 Programming
4-l
SystemSpes ......................................................................
4-l
4-2
IEEE-488Connector ................................................................
,..... ‘I-2
4-3
IEEE-488Connections ..............................................................
4-3
4-4
Model 263 Rear Panel IEEE-488 Connector
............................................ 4-3
45
ContactAssignments
...............................................................
4-3
4-6
GeneralDataFormat ...............................................................
4-15
4-7
SRQ Mask and Serial Poll Byte Format.
...............................................
4-20
4-8
UO Machine Status Word (Default Conditions Shown)
..................................
4-24
4-9
UlErrorStatusWord
...............................................................
4-24
410
IJ2DataStatusWord ...............................................................
4-25
ix