6 Calibration Procedures  
Calibration Overview
172 U3606A User’s and Service Guide
Calibration Overview
This section contains procedures for verifying the instrument performance, 
as well as procedures for making adjustments where necessary.
Closed-case electronic calibration
The instrument features closed- case electronic calibration. No internal 
mechanical adjustments are required. The instrument calculates correction 
factors based upon the input reference value you set. The new correction 
factors are stored in the nonvolatile memory until the next calibration 
adjustment is performed. The nonvolatile EEPROM calibration memory 
does not change when power has been turned off, after a Factory Reset 
(*RST command), or after an Instrument Preset (SYSTem:PRESet 
command).
Agilent Technologies calibration services
Agilent Technologies offers calibration services at competitive prices. When 
your instrument is due for calibration, contact your local Agilent Service 
Center for recalibration. See “Types of Services Available” on page 233 for 
information on contacting Agilent.
Ensure that you have read the “Test Considerations” on page 140 before 
calibrating the instrument.