2
Measurement Concepts
• Measurement overview — Explains the basic measurement capabilities of Model
6485.
• Performance considerations — Covers a couple of considerations that affect
overall performance; warm-up and autozero.
• Connection fundamentals — Covers fundamental information about connecting
test circuits to the picoammeter.
• Zero check and zero correct — Provides operation information on these two
important aspects of the basic measurement process.
• Measurement considerations — Summarizes the various factors that affect low
level measurements.