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Performance Veri
fi
cation
Self Test
This procedure uses internal routines to verify that the DUT functions and passes
its internal self tests. No test equipment or hookups are required.
1.
Disconnect all cables from the DUT outputs.
2.
Power on the DUT. The front-panel display will light up brie
fl
y while the
DUT performs its power-on self test. All the display annunciators will light
up at once.
3.
Review the display with all the annunciators. Visually check if there are any
strokes lost on any annunciator.
4.
If the EEPROM is damaged or the latest operation data in the EEPROM is
missing, the display appears as follows:
5.
If the calibration data in the EEPROM is missing, the display appears as
follows:
6.
If the latest operating state of the power supply in the EEPROM is missing,
the display appears as follows:
7.
If there is no response when you power on the DUT, verify that there is AC
power to the power supply, verify the power-line voltage settings, and verify
that the correct power-line fuse is installed. If you need more help, contact
Keithley.
8.
Power off the DUT.
26
Series 2200 Multichannel Programmable DC Power Supplies Technical Reference