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Installation
Basic Tests
38 Operating Manual for XPR Series Power Supply
Front Panel
Function
Checks
1. Turn the front panel power switch to ON.
2. Set voltage and current controls fully clockwise. Push the OUT ON/OFF switch
to its IN position and check that the voltmeter reading falls to zero and the OFF
(OUTPUT OFF) LED turns on. Push the OUT ON/OFF switch once again to
reset it to its OUT position. The OFF LED turns off and the voltmeter reading
returns to its previous value.
3. Press the OUT ON/OFF switch to its IN position.
4. Press the OVP CHECK switch and check that the voltmeter displays
approximately the model-rated output voltage plus 10%.
5. Turn the OVP SET potentiometer counter-clockwise and check that the
voltmeter reading decreases. Continued turning (up to 20 turns) will see the
reading decrease to approximately 5% of the model-rated voltage output. Turn
the OVP SET potentiometer clockwise until the voltmeter once again displays
approximately the model-rated output voltage plus 10%.
6. Press the OUT ON/OFF switch to its OUT position.
7. Press the SET POINT switch and check that the voltmeter and ammeter display
approximately the power supply output ratings.
8. Turn the front panel power switch to OFF.