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System-Related Operations
Reset to the factory defaults
To reset to factory defaults, press and hold the [All On/Off] button when powering
on the unit until the display shows dOnE.
– The OVP and OCP are disabled, and their trip levels are set to maximum (i.e.,
– All memory storage locations are cleared.
– The voltage limit value is set to 0, while the current limit value is set to the
– The calibration data are not affected by the factory default reset.
Power-on self-test
A power-on self-test occurs automatically when the power supply unit is turned
on. This test ensures the unit is operational. The power-on self-test checks for
flash data memory and checks the voltage and current outputs when the unit is
turned off.
If the test fails, the display will show Err along with the error code. For more
NOTE
information, refer to the
Display the firmware and board versions
To display the firmware and board versions, press and hold the [Over Voltage]
and [Display Limit] buttons simultaneously when powering on the unit.
– The display shows the front panel firmware version on line 1 for one second.
– After that, the display shows:
Keysight U8030A Series User's Guide
10% above the CV and CC rated values).
maximum rated value.
– the firmware and board versions of analog board 1 on line 1, and
– the firmware and board versions of analog board 2 on line 2 for one second.
"List of Error Codes"
Operation and Features
on page 34.
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