1 Calibration Procedures
18 Keysight U1270 Series Service Guide
Calibration Overview
This manual contains procedures to verify the U1270 Series handheld digital
multimeters performance and to perform adjustments (calibration). The
performance test procedures allow you to verify that the instrument is operating
within its published specifications. The adjustment procedures ensure that the
instrument remains within its specifications until the next calibration.
Closed-case calibration
The instrument features closed-case electronic calibration. In other words, 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 calibration services
When your instrument is due for calibration, contact your local Keysight Service
Center to enquire about recalibration services.
Ensure that you have read the “Test Considerations” on page 25 before
calibrating the instrument.
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