Keithley 263

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MAINTENANCE

BOmOM SHIELD

ANALOG BOARD

AND COLLAR (6)

‘-DISPLAY BOARD

RIBBON CABLE

,DISPLAY BOARD

COVER

w< w ’ MOTHER BOARD

ASSEMBLY

Figure 8-6. Model 263 Exploded View

8-14

Main Page

Table of Contents9
SECTION 1 - General Information19
Introduction19
Features19
Warranty Information19
Manual Addenda19
Safety Terms and Symbols19
Specifications19
Unpacking and Inspection19
- Additional Documentation20
Repacking for Shipment20
- Optional Accessories20
  - Getting Started23
Front Panel Familiarization23
- 2-L23
Rear Panel Familiarization25
- Calibrator/Source Operation26
- Test Connections27
- Basic Sourcing Procedure27
  - Operation31
Introduction31
Linevoltage31
Linepowerconnections32
Powerswitch32
Powerupselftest32
- Power up Configuration32
Warmupperiod32
Outputcharacteristics32
Voltagesource32
- Power up Default Conditions32
Resistancesource34
Currentandchargesource34
Function and Range Selection36
Functionselection36
Rangeselection36
Dataentry37
Adjustmethod37
Keypadmethod38
Operateandzero39
Operate39
Zero39
Guard40
Guardedohms41
- Sourcing Guarded Ohms to Keithley Electrometers44
Guardedampsandcoulombs45
Guardedvolts49
- Preamp out49
- Fronti'aneli'rograms50
Sourcingtechniques51
- Connections51
- Sourcingohms52
- Sourcingvolts53
- Additional Ohms Specifications53
- Sourcingampsandcoulombs54
- Sourcing Considerations56
IEEE-486 Programming61
- Introduction61
- Busconnections61
  - Cable Connecttons62
  - IEEE-488 Programming63
- Controllerprogramming64
  - Controller Handler Software64
  - Interface BASIC Programming Statements64
- Front Panel Aspects of Ieee-488 Operation65
- Generalbuscommands66
- Device-Dependent Commands70
- Timing Considerations92
Introduction94
- Calibration Applications94
- Sourcing Applications94
- Calibration Storage Enable94
- Required Equipment94
- Environmental Conditions95
- Front Panel Calibration95
- IEEE-488 Bus Calibration96
Model617Calibration97
- Calibrationjumper97
- Requiredequipment98
- Environmental Conditions98
- Calibrationsequence98
- Manual Calibration Adjustments99
- Front Panel Digital Calibration100
- Model 617 Volts Calibration102
- IEEE-488 Bus Digital Calibration104
Calibrating Other Picoammetersielectrometers107
- Model 480 Picoammeter Calibration107
- Model 619 Electrometer Calibration107
- Model 614 Electrometer Calibration108
- Model 642 Electrometer Calibration109
- Model 610C Electrometer Calibration109
- Model 602 Electrometer Calibration111
- Model 616 Electrometer Calibration111
Sourcing Applications112
- Current Suppression112
- Galvanometric Measurements113
- Low Resistance "Lindeck' Measurements114
- Resistivity Measurements114
- Diode Characterization114
- Performance Verification116
Introduction116
Performanceverification Record117
Verificationprocedures117
- Voltsaccuracyverification117
- Accuracycheck118
- Ampszerooffsetchecks119
- Performance Verification119
- AMPS Zero Offset Checks120
- Accuracy Checks121
- AMPS (20Pa-2Ua)122
- Accuracy Check122
Ohmssource132
- Current Sources132
  - Passive (AMPS V/R) Current Source133
  - Active(Amps)Currentsource133
- Charge Sources135
Temperaturecompensation135
Digitalcircuitry135
- Microcomputer135
- Memoryelements136
- Deviceselection136
  - IEEE-488Bus136
Displaycircuitry136
Mainpowersupply137
Introduction138
- Line Voltage Selection138
Fuse Replacement138
Calibration139
- Calibration Overview139
- Recommended Calibration Equipment139
- Environmental Conditions139
- Cool-Down Period140
- Calibration Record140
- Front Panel Calibration140
- Special Handling of Static Sensitive Devices150
- Disassembly Instructions150
Troubleshooting152
- Recommended Test Equipment152
- Power up Self Test152
- Display Test and Software Revision153
- Power Supply Checks153
- Voltagesourcechecks157
Handling and Cleaning Precautions159
- Replaceable Parts166
Introduction166
Electrical Parts Lists166
- Mechanical Parts166
Orderinginformation166
Factoryservice166

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