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Turn-On Checkout
Checkout Procedure
Successful tests in this chapter provide a high degree of confidence that the unit is operating properly.
For verification tests, see appendix B. Complete performance tests are given in the Service Guide.
NOTE:
To perform the checkout procedure, you will need a wire for shorting the output
terminals together.
The following procedure assumes that the unit turns on in the factory-default state. If you need more
information about the factory default state, refer to the *RST command in chapter 8. Note that the values
shown in the Display column may not exactly match the values that appear on the front panel of your
unit.
If you have not already done so, connect the power cord to the unit and plug it in.
Procedure
1.
Turn the unit on. The dc
source undergoes a self-
test when you first turn it
on.
NOTE:
Press the Meter key to exit a menu at any time and return to meter mode. If the Err
annunciator on the display is on, press the
error number. See table 4-1 at the end of this chapter.
2.
Check that the dc source
fan is on
3.
Press Voltage,
Enter Number,
<15>, Enter
4.
Press Output On/Off
5.
Press Shift, OV
Display
Explanation
**********
During selftest, all display segments are briefly lit,
ADDRESS 5
followed by the HP-IB Address.
0.004V
.0006A
The display then goes into meter mode with the Dis
annunciator on, and all others off. In Meter mode the
*****V digits indicate the output voltage and the
*****A digits indicate the output current. The flashing
digit on the display indicates the digit that will be
affected if changes are made to the displayed values
using the rotary control or the
You will only see the changes if the output is ON.
You should be able to hear the fan and feel the air
coming from the back of the unit.
VOLT 0.000
Programs the output to 15 volts. After the value is
VOLT 15
entered, the display returns to Meter mode. Because the
output has not been enabled, the meter still indicates
approximately 0 volts.
15.003V 0.0006A
Turns the output on. The Dis annunciator should be off
and CV should be on.
VOLT:PROT 22.00
Display shows the overvoltage protection trip voltage
for your unit.
key followed by the
Shift
4
and
keys.
key to see the
Error
29
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