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Chapter 3 Front-Panel Operation
Constant Current Operation
39
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 42 and page 46 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.
Voltage
Current
1
Display
Limit
Display
Limit
Output
On/Off
*For Agilent E3633A Model **For Agilent E3634A Model