Keysight E3631A, Service Manual

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Quick Start 2
Keysight E3631A Service Guide 41
5 Adjust the knob for the desired voltage limit.
1
Check that the knob is still selected for voltage control and the Lmt
annunciator blinks. Adjust the knob for the desired voltage limit.
6 Adjust the knob for the desired output current.
1
Set the knob for current control. The second digit of the ammeter will be
blinking. Adjust the knob to the desired current output.
7 Return to the meter mode.
Press the key or let the display time-out after several seconds to return the
meter mode. Notice that the Lmt annunciator turns off and the display returns
to the meter mode. In the meter mode, the display shows the actual output
voltage and current of the selected supply.
8 Verify that the power supply is in the constant current mode.
If you operate the +6V supply in the constant current (CC) mode, verify that CC
and +6V annunciators are lit. If you operate the power supply for +25V supply
or –25V supply, the +25V or –25V annunciator will turn on. If the CV
annunciator is lit, choose a higher voltage limit.
1
You can use the resolution selection keys to move the blinking digit to the right or left when setting
the voltage and current.
NOTE
During actual CC operation, if a load change causes the voltage limit to be
exceeded, the power supply will automatically crossover to constant voltage
mode at the preset voltage limit and the output current will drop
proportionately.