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Keithley Manuals
Measuring Instruments
485
Instruction manual
Keithley 485 Instruction Manual
Autoranging picoammeter
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Also See for 485
:
Quick reference manual
(32 pages)
,
Quick reference manual
(36 pages)
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Contents
Table of Contents
Troubleshooting
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Table of Contents
Table of Contents
SECTION L-GENERAL INFORMATION
Introduction
Specifications
Warranty Information
Manual Addenda
Safety Symbols and Terms
Optional Accessories
Section Z-Bench Operation
Introduction
Preparationforuse
Line Power
2-L
Battery Pack Power
Batterycharging
Model 485 Familiarization
Display
Frontpanelcontrols
Inputconnector
Analogoutputconnectors
Error Messages
Environmentalcondition
Basicbenchmeasurements
Power-Up
Zero Check
Current Measurements
Relativemode
Logmode
Inverting Analog Output
Measurementconsiderations
Sourceresistance
Sourcecapacitance
Leakageresistance
Zerotimestability
Groundingconsiderations
Applications
FET Gate Leakage and Channel Current
Insulation Leakage Currents and High Resistance
Resistivity Tests
Introduction
Environmental Conditions
Initial Conditrons
Verification Procedure
Section 4-Theory of Operation
Introduction
Overall Functional Description
Current-To-Voltage Converter
Multiplexer
Inputbufferamplifier
2Vreferencesource
Aidconverter
Digital Circuitry
Microcomputer
Address Decoding
Pia
Displayboard
Digital Calibration
Powersupply
Model 1758 Battery Option
Section 5-Maintenance
Introduction
Top Cover Removal/Installation
Front Panel Calibration
Recommended Calibration Equipment
Environmental Conditions
Calibration Procedure
Calibrationstorage
Calibration over IEEE-488 Bus
Troubleshooting
Recommended Test Equipment
Self Diagnostic Program
Signalconditioning
Linefusereplacement
Section B-Replacement Parts
Introduction
Replaceableparts
If Ordering Information
Factorysen/Ice
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See also:
Quick Reference Manual
Model 485
Autoranging Picoammeter
Instruction Manual
Contains Operating and Servicing Information
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