Section 2:Quick reference Model 2231A Triple-channel DC Power Supply Reference Manual
2-6 077100401/September 2014
Self-test procedure
After the instrument is powered on, the screen displays the following information during
the self-test process.
Initializing…
After 1 s, the screen displays the following information for about 2 s if the EEPROM test
fails.
EEPROM Test Failure
If the last saved settings for the power supply are lost, the vacuum fluorescent display
displays the following information for 2 seconds:
User Data Lost
During the channel scan, the screen displays the following information:
Scan Channels
If the channel data initialization fails, the screen displays the following information for 2
seconds:
Channel Initialization Failed
If the user calibration data in the EEPROM are lost, the screen displays the following
information for 2 seconds:
Calibration Data Lost
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