Chapter 3 Front-Panel Operation
Constant Current Operation
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3
5 Adjust the knob for the desired output current.
Check that the Limit annunciator still blinks. Set the knob for current control. The
second digit of the ammeter will be blinking. Change the blinking digit using the
resolution selection keys and adjust the knob to the desired output current.
6 Return to the meter mode.
Press key or let the display time-out after several seconds to return the meter
mode. Notice that the Limit annunciator turns off and the display shows “OUTPUT
OFF” message.
7 Enable the output.
The OFF annunciator turns off and the 8V* (or 25V**) or 20V* (or 50V**), OVP, OCP
and
CC annunciators are lit. Notice that the display is in the meter mode. In the meter
mode, the display shows the actual output voltage and current.
Refer to “Programming Overvoltage Protection” and “Programming Overcurrent
Protection” sections, starting on
page 30 and page 34 for more information on OVP
and OCP annunciators.
8 Verify that the power supply is in the constant current mode.
If you operate the power supply in the constant current (CC) mode, verify that the CC
annunciator is lit. If the
CV annunciator is lit, choose a higher voltage limit.
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.
• Remote interface operation:
VOLTage {<voltage>|MIN|MAX} Set the voltage
CURRent {<current>|MIN|MAX} Set the current
OUTPut ON Enable the output
1
You can use the resolution selection keys to move the blinking digit to the right or
left when setting the current.
*For HP E3633A Model **For HP E3634A Model
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