Agilent Technologies E3646A, User Manual, Page: 20 / 211

Chapter 1 Quick Start
Output Checkout
20
Output Checkout
The following procedures check to ensure that the power supply develops its rated
outputs and properly responds to operation from the front panel. For complete
performance and verification tests, refer to the
Service Information .
Note: If an error has been detected during the output checkout procedures, the
ERROR
annunciator will turn on. See "Error Messages" starting on page 125 in chapter 5 for
more information.
Voltage Output Checkout
The following steps verify basic voltage functions with no load.
1 Turn on the power supply.
The power supply will go into the power-on / reset state; the outputs are disabled (the
OFF
annunciator turns on); its output1 and low voltage range are selected. The
annunciator
OVP1
,
OVP2
,
CV
,
OUT1
, and low voltage range indication annunciator
turn on (for example,
8V
annunciator turns on for the E3646A model); and the knob
is selected for voltage control.
2 Enable the outputs.
The
OFF
annunciator turns off and the
CV
annunciator turns on. Notice that the display
is in the meter mode. ‘‘Meter mode’’ means that the display shows the actual output
voltage and current.
3 Check that the front-panel voltmeter properly responds to knob control for both
low and high voltage range.
Turn the knob clockwise or counter clockwise to check that the voltmeter responds
to knob control and the ammeter indicates nearly zero. The
flashing digit can be
adjusted by turning the knob.
4 Ensure that the voltage can be adjusted from zero to the full rated value by
adjusting the knob.
1
You can use the resolution selection keys to move the flashing digit to the right or
left when setting the voltage.
Power
On/Off
Output
1