1Getting Started
Preparing the Power Supply
10 E364xA User’s and Service Guide
Checking the output
The following procedures 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
Chapter 8, “Service and
Maintenance”.
Voltage output check
The following steps verify the 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),
and its output1 and low voltage range are selected. The
OVP1, OVP2, OUT1, and low voltage range indication
annunciators turn on (for example, the 8 V annunciator
turns on for the E3646A model), and the knob is selected
for the 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
the knob control for both the low and high voltage ranges.
Turn the knob clockwise or counter- clockwise to check
that the voltmeter responds to the 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]
If an error is detected during the output checkout procedures, the ERROR
annunciator will turn on. Refer to Chapter 4, “Error Messages” for
more information.
[1] You can use the resolution selection keys to move the flashing digit to the right
or left when setting the voltage.
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