Table of Contents
Related Manuals for Keithley 6522
Summarization of Contents
General Information
Introduction
General overview of the Model 6521/22 scanner cards and the manual's structure.
Features
Key features of the Model 6521 and 6522 scanner cards.
Model 6521 features
Specific features of the Model 6521 scanner card for amp functions.
Model 6522 features
Specific features of the Model 6522 scanner card for multiple functions.
Warranty information
Information regarding warranty service for the scanner cards.
Manual addenda
Details about manual updates and replacements through addenda.
Safety symbols and terms
Explanation of safety symbols and terms used in the manual.
Specifications
Lists the specifications for the Model 6521/22 scanner cards.
Unpacking and inspection
Procedures for unpacking and inspecting the scanner card upon receipt.
Inspection for damage
Guidance on checking the scanner card for physical damage after unpacking.
Handling precautions
Precautions to take when handling the scanner card to prevent contamination.
Shipment contents
Lists items included with the Model 6521/22 order.
Instruction manual
Information on ordering additional instruction manuals.
Repacking for shipment
Instructions for packing the scanner card for return or shipment.
Model 6521 accessories
Lists recommended accessories specific to the Model 6521.
Model 6522 accessories
Lists recommended accessories specific to the Model 6522.
Card Connections and Installation
Introduction
Overview of connecting and installing the scanner cards.
Handling precautions
Precautions for handling the scanner card to prevent contamination.
Connections
Information on connecting external circuitry to the scanner cards.
Model 6521 scanner card configuration
Simplified schematic and connection details for the Model 6521.
Model 6522 scanner card configuration
Simplified schematic and connection details for the Model 6522.
Input connections
Guidance on making input connections using appropriate cables.
Output connections
Information on connecting the triax output cable.
Typical connecting schemes
Illustrates connection schemes for various measurements.
Guarded operation
Details on using guarded voltage measurements with the Model 6522.
Card installation and removal
Procedures for installing and removing the scanner card.
Scanner card installation
Step-by-step guide for installing the scanner card into the electrometer.
Output connections to electrometer
Connecting the scanner card's output cable to the electrometer.
Scanner card removal
Step-by-step guide for removing the scanner card from the electrometer.
Operation
Introduction
Overview of front panel and IEEE-488 bus operation.
Signal limitations
Maximum signal levels that can be applied to the scanner cards.
Model 6521 signal limitations
Specific signal limitations for the Model 6521 to prevent damage.
Model 6522 signal limitations
Specific signal limitations for the Model 6522 to prevent damage.
Relay operation
How relays operate and their behavior when power is off.
Scanner card detection
How the scanner card is detected by the electrometer.
Power-up detection
Process of scanner card detection during power-on.
Scanner option bus query
Using bus commands to query scanner card presence.
Front panel operation
Controls and procedures for operating the scanner via the front panel.
Scanning controls
Description of keys and controls for scanning operations.
Scan control and configuration menus
Navigating scan control and card configuration menus.
Closing and opening channels
Procedures for closing and opening scanner channels.
Card configuration
Configuring scan list, scan mode, and voltage limits.
Scanning procedure
Step-by-step guide for performing scans.
IEEE-488 bus operation
Operating the scanner card via the IEEE-488 bus.
IEEE-488 bus scanner commands
Summary of bus commands for scanner control.
Closing and opening channels
Bus commands for opening and closing channels.
Card configuration
Configuring the card via bus commands.
Bus scanning
Performing scans using bus commands.
Measurement considerations
Factors affecting low-level measurement accuracy.
Generated currents
Sources of unwanted currents and how to minimize them.
Path isolation
Importance of path isolation resistance for measurement accuracy.
Noise
Sources of noise and methods to mitigate their effects.
Keeping connectors clean
Importance of clean connectors for measurement integrity.
Guarded operation
Using guarded operation for high source resistance measurements.
Voltage/current scan mode
Selecting scan modes for voltage or current switching.
Typical applications
Common applications for the scanner cards.
Capacitor leakage measurements
Using the scanner for capacitor leakage testing.
High-resistance measurements
Performing automated high-resistance tests.
Low-current measurements
Utilizing the cards for low-current measurements.
Service Information
Introduction
Overview of service procedures for the scanner card.
Handling and cleaning precautions
Precautions for handling and cleaning the scanner card.
Handling precautions
Essential handling practices to prevent damage and contamination.
Soldering considerations
Guidelines for soldering on the circuit board.
Performance verification
Procedures to verify scanner card performance.
Environmental conditions
Recommended environmental conditions for testing.
Recommended verification equipment
List of equipment needed for performance verification.
Scanner card connections
How to connect the scanner card for testing.
Offset current tests
Procedures to measure residual current for each channel.
Signal path contact resistance tests
Verifying the contact resistance of signal paths.
Ground relay contact resistance tests
Testing the contact resistance of ground relays.
Isolation tests
Checking leakage resistance and input isolation.
Special handling of static-sensitive devices
Precautions for handling static-sensitive components.
Principles of operation
Basic operating principles of the scanner card.
Block diagram
Simplified block diagram of the scanner card.
Relay control
How scanner card relays are controlled.
Switching circuits
Explanation of the signal switching circuits.
Power-on/power-off safeguard
Safeguard circuit for relay control during power transitions.
Troubleshooting
Tips and procedures for troubleshooting the scanner card.
Troubleshooting equipment
Recommended equipment for troubleshooting.
Troubleshooting access
Steps to access the scanner card for troubleshooting.
Troubleshooting procedure
Step-by-step troubleshooting guide.
Replaceable Parts
Introduction
Information on replacement parts, schematics, and layout drawings.
Parts lists
Lists of replaceable parts for the scanner cards.
Ordering information
Information required when ordering replacement parts.
Factory service
Procedures for returning the card for factory repair.
Component layouts and schematic diagrams
Location of component layout and schematic diagrams.
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