Agilent Technologies E3631-90002, Руководство пользователя, Страница: 32 / 166

Chapter 2 Initial Operation
Output Checkout
31
2
Current Output Checkout
The following steps check basic current functions with a short across the
appropriate supply’s output.
1 Turn on the power supply.
The power supply will go into the
power-on / reset
state; all outputs are
disabled (the
OFF
annunciator turns on); the display is selected for the
+6V
supply (the
+6V
annunciator turns on); and the knob is selected for
voltage
control.
2 Connect a short across (+) and (-) output terminals of the +6V
supply with an insulated test lead.
3 Enable the outputs.
The OFF annunciator turns off and the +6V annunciator turns on. The CV or
CC annunciator is lit depending on the resistance of the test lead. The
blinking
digit can be adjusted by turning the knob. Notice that the display is
in the meter mode.
“
Meter mode
”
means that the display shows the actual
output voltage and current.
4 Adjust the voltage limit value to 1.0 volt.
Set the display to the limit mode (the Lmt annunciator will be blinking ).
Adjust the voltage limit to 1.0 volt to assure CC operation. The CC
annunciator will light.
5 Check that the front-panel ammeter properly responds to knob control
for the +6V supply.
Set the knob to the current control, and turn the knob clockwise or counter
clockwise when the display is in the meter mode (the Lmt annunciator is
off). Check that the ammeter responds to knob control and the voltmeter
indicates nearly zero (actually, the voltmeter will show the voltage
drop caused by the test lead).
Output On/Off
Power
Display Limit
Vol/Cur