Performance Tests and Calibration 7
Agilent U1251A/U1252A User’s and Service Guide 123
warranted beyond the 1- year calibration interval. Agilent
does not recommend extending calibration intervals beyond
2 years for any application.
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 U1251A/U1252A 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 Verifica-
tion Tests and this does not guarantee the instrument will
remain within these limits unless the adjustments are per-
formed.
Refer to the “To Read the Calibration Count” on page 153
and verify that all adjustments have been performed.
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