3 Calibration Procedures
50 Keysight E3631A Service Guide
Closed-Case Electronic Calibration
The power supply features closed-case
electronic calibration since no internal mechanical adjustments are required for
normal calibration. The power supply calculates correction factors based upon the
input reference value you enter. The new correction factors are stored in
non-volatile memory until the next calibration adjustment is performed.
(Non-volatile memory does not change when power has been off or after a remote
interface reset.)
Keysight Technologies Calibration Services
When your power supply is due for calibration, contact your local Keysight
Technologies Service Center for a low-cost calibration. The Keysight E3631A
power supply is supported on calibration processes which allow Keysight
Technologies to provide this service at competitive prices.
Calibration Interval
The power supply should be calibrated on a regular interval determined by the
accuracy requirements of your application. A 1-year interval is adequate for most
applications. Keysight Technologies does not recommend extending calibration
intervals beyond 1 year for any application. Keysight Technologies recommends
that complete re-adjustment should always be performed at the calibration
interval. This will increase your confidence that the Keysight E3631A will remain
within specification for the next calibration interval. This criteria for re-adjustment
provides the best long-term stability.
Automating Calibration Procedures
You can automate the complete verification procedures outlined in this chapter if
you have access to programmable test equipment. You can program the
instrument configurations specified for each test over the remote interface. You
can then enter readback verification data into a test program and compare the
results to the appropriate test limit values.
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