Calibration Adjustment Procedures
This chapter includes calibration adjustment procedures for Keysight EL30000 Series Electronic Load. Instructions
are applicable for performing the procedures from either the front panel or a controller over the LAN, USB, or GPIB.
Perform the verification tests before calibrating your instrument. If the instrument passes the verification
tests, the unit is operating within its calibration limits and does not need to be re-calibrated.
Closed–case electronic calibration
The instrument uses closed-case electronic calibration; no internal mechanical adjustments are required. The
instrument calculates correction factors based on reference signals that you apply and stores the correction factors
in non-volatile memory. This data is not changed by cycling power, *RST, or SYSTem:PRESet.
Calibration interval
The recommended calibration interval for Keysight EL30000 series electronic load is one year.
Calibration adjustment process
The following general procedure is recommended to complete a full calibration adjustment.
1.
Adhere to the test considerations. See
Performance Verification > Test considerations
for details.
2.
Perform the performance verification tests to characterize the instrument. See
for
details.
3.
Unsecure the instrument for calibration. See
for details.
4.
Perform the calibration procedures. See
for details.
5.
Secure the instrument against the calibration. See
for details.
6.
Take note of the security code and calibration count in the instrument's maintenance records.
7.
Perform the performance verification tests to verify the calibration.
Calibration security
The instrument has a calibration passcode to prevent accidental or unauthorized calibration. When you receive your
power supply, it is secured by a default passcode. The default passcode is 0. The security code cannot be changed
by a power cycle or *RST.
You can enter a passcode of up to 9 digits.
You can change the passcode from both front panel and remote interface.
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Keysight EL30000 Series Service Guide
