1 Getting Started
32 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 output is disabled
(the OFF annunciator turns on), and its output1 and low voltage range is
selected. The OVP1, OVP2, OUT1 and low voltage range indication
annunciator turn on (for example, the 8 V 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 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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