Quick Start 2
Keysight E3633A and E3634A Service Guide 37
To Use the Power Supply in Constant Current Mode
To set up the power supply for constant current (CC) operation, proceed as
follows.
1 Connect a load to the output terminals.
With power-off, connect a load to the (+) and (-) output terminals.
2Turn on the power supply
The power supply will go into the power-on / reset state; the output is disabled
(the OFF annunciator turns on); the 8V/20A
[1]
or 25V/7A
[2]
range is selected
(the 8V
[1]
or 25V
[2]
annunciator turns on); and the knob is selected for voltage
control.
Press
[1]
or
[2]
key before proceeding to the next step. The 20V
[1]
or
50V
[2]
annunciator turns on.
3 Set the display to the limit mode.
Notice that the Limit annunciator blinks, indicating that the display is in the
limit mode. When the display is in the limit mode, you can see the voltage and
current limit values of the selected supply.
[1] For Keysight E3633A Model
[2] For Keysight E3634A Model
In constant current mode, the current values between the meter mode and limit
mode are the same, but the voltage values are not. Moreover, if the display is in
the meter mode, you cannot see the change of voltage limit value when
adjusting the knob. We recommend that you should set the display to “limit”
mode to see the change of voltage limit value in the constant current mode
whenever adjusting the knob.
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