Keithley 6487, Reference Manual

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1-2 Getting Started Model 6487 Reference Manual
Introduction
The Model 6487 is a high resolution bus-programmable (RS-232 and IEEE-488)
picoammeter. The Model 6487 has the following current measurement ranges: 8 ranges,
from 20mA down to the 2nA range. The Model 6487 also has a built-in ±500V DC voltage
source and an ohms function that includes an alternating voltage mode for enhanced high
resistance measurement accuracy.
Overview of this manual
This manual describes how to connect, program, and maintain the Model 6487
Picoammeter. The sections of the manual are organized as follows:
– Section 1 : Getting Started
– Section 2 : Measurement Concepts and Connections
– Section 3 : Measurements and Sourcing Voltage
– Section 4 : Range, Units, Digits, Rate, and Filters
– Section 5 : Relative, mX+b, m/X+b, and log
– Section 6 : Buffer and Sweeps
– Section 7 : Triggering
– Section 8 : Limit Tests and Digital I/O
– Section 9 : Remote Operation
– Section 10 : Status Structure
– Section 11 : Common Commands
– Section 12 : SCPI Signal Oriented Measurement Commands
– Section 13 : DISPlay, FORMat, and SYSTem
– Section 14 : SCPI Reference Tables
– Section 15 : Performance Verification
– Section 16 : Calibration
– Section 17 : Routine Maintenance
Appendices to this manual contain specifications and also provide additional information
on specific topics. The appendices are organized as follows:
– Appendix A : Specifications
– Appendix B : Status and Error Messages
– Appendix C : DDC Emulation Commands
– Appendix D : IEEE-488 Bus Overview
– Appendix E : IEEE-488 and SCPI Conformance Information
– Appendix F : Remote Calibration
– Appendix G : Applications Guide