Agilent Technologies E3634A, E3633A manual Constant Current Operation

Power

Display

Limit

1

Chapter 3 Front-Panel Operation

Constant Current Operation

Constant Current Operation

To set up the power supply for constant current (CC) operation, proceed as follows.

•Front-panel operation:

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* or 25V/7A** range is selected (the 8V* or 25V** annunciator turns on); and the knob is selected for voltage control. To operate the power supply in the 20V/10A* or 50V/4A** range, press 20V,10A * or 50V,4A ** key before proceeding to the next step. The 20V* or 50V** annunciator turns on.

3Set 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.

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.

4Adjust the knob for the desired voltage limit.

Check that the Limit annunciator still blinks and the second digit of voltmeter blinks to indicate the knob is selected for voltage control. The blinking digit can be changed using the resolution keys and the blinking digit can be adjusted by turning the knob. Adjust the knob for the desired voltage limit.

1You can use the resolution selection keys to move the blinking digit to the right or left when setting the voltage.

*For Agilent E3633A Model **For Agilent E3634A Model

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