Keysight U1251B Guia Del Usuario página 148

6 Performance Tests and Calibration
Calibration Overview
This manual contains procedures to verify the instrument's performance and
adjustment (calibration).
The performance test procedures allow you to verify that the handheld digital
multimeter is operating within its published specifications. The adjustment
procedures ensure that the multimeter remains within its specifications until the
next calibration.
Make sure you have read the
NOTE
calibrating the instrument.
Closed-case electronic calibration
This 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 is retained even when
the power is switched off.
Keysight Technologies calibration services
When your instrument is due for calibration, contact your local Keysight Service
Center to enquire about recalibration services.
146
"Test Considerations"
Keysight U1251B and U1252B User's and Service Guide
on page 152 before