Performance Tests and Calibration 5
U1241A/U1242A User’s and Service Guide 37
Adjustment is Recommended
Specifications are only guaranteed within the period stated from the last 
adjustment. Whatever calibration interval you select, Agilent recommends 
that complete re- adjustment should always be performed at the calibration 
interval. This will assure that the U1241A/U1242A will remain within 
specification for the next calibration interval. This criteria for 
re- adjustment provides the best long–term stability. 
Performance data is measured during Performance Verification Tests and 
does not guarantee the meter will operate within the test limits unless the 
adjustment is performed.
Refer to Calibration Count to verify that all adjustments have been 
performed.