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Keithley 263 User Manual
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PERFORMANCE
VERIFICATION
Table
6-6.
AMPS
(20pA-2pA)
Accuracy
Checks
1
263
Range
20pA
20pA
200pA
20OpA
2nA
2nA
20nA
20nA
200nA
200nA
2~4
2PA
P
263
‘rogcammed
Output
19.0000pA
-19.0000pA
lSO.OO@A
-190.000pA
1.90000nA
1.90000nA
19.0000nA
-19.0000nA
190.000nA
-190.000nA
I
.90000pA
-1.90000pA
196
tang
OOm’
oom
OOm’
,OOm’
,OOm’
,OOm’
3v
3v
3v
3v
3v
3v
545OA
Resistor
Vominal)
lOOM0
1OOMQ
lOOMa
1OOMR
1OOMCl
IOOMR
1OOMQ
lOOMC2
1OMn
I
OMCl
1MQ
1MQ
Allowable
Calculated
196
Calculated
Output
Current
Current
Reading
196
Avg*
i
5450A
Reading
=
Current
(WC
to
28’C)
+-
+
18.9383pA
to
19.0617pA
+-
+
=
189.620pA
to
190.38OpA
+-
f
1.89882nAto
1.90118nA
t-
+
18.9882nAto
19.0118nA
+-
+
189.934nA
to
190.066nA
f-
+
=
1.89953pA
to
1.90047pA
Table
6-7.
AMPS
V/R
Functional
Checks
ieading*
I
--.
--------
I
\--
-3°C)
200pA
190.000pA
200pA
186.95
to
193.05
200pA
190.000pA
200pA
189.71
to
190.29
*Reading
limb
determine
by
the
accuracy
specifications
of
the
Model
617.
617
Reading
6-8
122
124
Table of Contents
Table of Contents
9
SECTION 1 - General Information
19
Introduction
19
Features
19
Warranty Information
19
Manual Addenda
19
Safety Terms and Symbols
19
Specifications
19
Unpacking and Inspection
19
Additional Documentation
20
Repacking for Shipment
20
Optional Accessories
20
Getting Started
23
Front Panel Familiarization
23
2-L
23
Rear Panel Familiarization
25
Calibrator/Source Operation
26
Test Connections
27
Basic Sourcing Procedure
27
Operation
31
Introduction
31
Linevoltage
31
Linepowerconnections
32
Powerswitch
32
Powerupselftest
32
Power up Configuration
32
Warmupperiod
32
Outputcharacteristics
32
Voltagesource
32
Power up Default Conditions
32
Resistancesource
34
Currentandchargesource
34
Function and Range Selection
36
Functionselection
36
Rangeselection
36
Dataentry
37
Adjustmethod
37
Keypadmethod
38
Operateandzero
39
Operate
39
Zero
39
Guard
40
Guardedohms
41
Sourcing Guarded Ohms to Keithley Electrometers
44
Guardedampsandcoulombs
45
Guardedvolts
49
Preamp out
49
Fronti'aneli'rograms
50
Programieee
50
Programdisp
50
Programtc
51
Sourcingtechniques
51
Connections
51
Sourcingohms
52
Sourcingvolts
53
Additional Ohms Specifications
53
Sourcingampsandcoulombs
54
Sourcing Considerations
56
Temperaturecompensation
56
Burdenvoltage
56
Temperature Compensated Functions/Ranges
56
Guarding
57
IEEE-486 Programming
61
Introduction
61
Busconnections
61
Cable Connecttons
62
IEEE-488 Programming
63
Controllerprogramming
64
Controller Handler Software
64
Interface BASIC Programming Statements
64
Front Panel Aspects of Ieee-488 Operation
65
Buserrors
65
Numbererrors
65
BASIC Statements Necessary to Send Bus Commands
65
Calibrationstoragemessages
66
Generalbuscommands
66
Ren(Remoteenable)
66
Ifc(Interfaceclear)
67
Llo(Locallockout)
67
Gtl(Gotolocal)Andlocal
67
Dcl(Deviceclear)
67
Sdc(Selectivedeviceclear)
68
SPE, SPD (Serial Polling)
68
Device-Dependent Commands
70
Device-Dependent Command Summary
72
A(Calibration)
73
C(Temperaturecompensation)
74
F(Function)
75
G (Prefix)
76
J (Self-Test)
77
K (Eoi)
78
L (Calibration; Low Temperature Point)
79
M (SRQ Mask and Serial I'oii Byte Format)
80
O(Operate)
82
R(Range)
83
U (Status)
84
Outputvalue)
87
W (Guard)
88
Execute)
89
Y (Terminator)
90
Z(Zero)
91
Timing Considerations
92
Introduction
94
Calibration Applications
94
Sourcing Applications
94
Calibration Storage Enable
94
Required Equipment
94
Environmental Conditions
95
Front Panel Calibration
95
IEEE-488 Bus Calibration
96
Model617Calibration
97
Calibrationjumper
97
Requiredequipment
98
Environmental Conditions
98
Calibrationsequence
98
Manual Calibration Adjustments
99
Front Panel Digital Calibration
100
Model 617 Volts Calibration
102
IEEE-488 Bus Digital Calibration
104
Calibrating Other Picoammetersielectrometers
107
Model 480 Picoammeter Calibration
107
Model 619 Electrometer Calibration
107
Model 614 Electrometer Calibration
108
Model 642 Electrometer Calibration
109
Model 610C Electrometer Calibration
109
Model 602 Electrometer Calibration
111
Model 616 Electrometer Calibration
111
Sourcing Applications
112
Current Suppression
112
Galvanometric Measurements
113
Low Resistance "Lindeck' Measurements
114
Resistivity Measurements
114
Diode Characterization
114
Performance Verification
116
Introduction
116
Performanceverification Record
117
Verificationprocedures
117
Voltsaccuracyverification
117
Accuracycheck
118
Ampszerooffsetchecks
119
Performance Verification
119
AMPS Zero Offset Checks
120
Accuracy Checks
121
AMPS (20Pa-2Ua)
122
Accuracy Check
122
Ohmssource
132
Current Sources
132
Passive (AMPS V/R) Current Source
133
Active(Amps)Currentsource
133
Charge Sources
135
Temperaturecompensation
135
Digitalcircuitry
135
Microcomputer
135
Memoryelements
136
Deviceselection
136
IEEE-488Bus
136
Displaycircuitry
136
Mainpowersupply
137
Introduction
138
Line Voltage Selection
138
Fuse Replacement
138
Calibration
139
Calibration Overview
139
Recommended Calibration Equipment
139
Environmental Conditions
139
Cool-Down Period
140
Calibration Record
140
Front Panel Calibration
140
Special Handling of Static Sensitive Devices
150
Disassembly Instructions
150
Troubleshooting
152
Recommended Test Equipment
152
Power up Self Test
152
Display Test and Software Revision
153
Power Supply Checks
153
Voltagesourcechecks
157
Handling and Cleaning Precautions
159
Replaceable Parts
166
Introduction
166
Electrical Parts Lists
166
Mechanical Parts
166
Orderinginformation
166
Factoryservice
166
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Keithley 263 Specifications
General
Brand
Keithley
Model
263
Category
Test Equipment
Language
English
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