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4 - Turn-On Checkout
40
Procedure
Display
Explanation
7.
Plug the output connector
back into the unit.
Restores the output sense connections. The
Prot
annunciator is still on.
8.
Press
Shift, Prot Clear
NO FAULT
Clears the protection condition.
Prot
is off;
CV
is on.
9.
Press
Voltage
VOLT 0.000
Display shows the output voltage setting of the unit.
10. Press
Enter Number,
<15>, Enter
VOLT <15>
15.003V 0.0001A
Programs the main output to 15 volts. After the value
is entered, the display returns to Meter mode.
Because the output is enabled, the meter will indicate
the actual output voltage.
11. Press
Output On/Off
0.000V 0.0000A
Turn the output off.
12. Connect a jumper wire
across the + and - output
terminals.
Shorts the output of the unit.
13. Press
Output On/Off
.
0.004V 3.0712A
The
CC
annunciator is on, indicating that the unit is
in constant current mode. The unit is sourcing output
current at the maximum rating, which is the default
output current limit setting.
14. Press
Current,
Enter Number,
<1>, Enter
.
CURR <1>
Programs the output current to 1 ampere.
15. Press
Shift, OCP
0.001V 0.0003A
You enabled the overcurrent protection circuit. The
circuit then tripped because the unit was operating in
constant current mode. The
CC
annunciator turns off,
and the
OCP
and
Prot
annunciators turn on.
16. Press
Shift, OCP
0.001V 0.0003A
You have disabled the overcurrent protection circuit.
The
OCP
annunciator turns off.
17. Press
Shift, Prot Clear
0.004V 0.998A
Restores the output. The
Prot
annunciator turns off.
The
CC
annunciator turns on.
18. Turn the unit off and remove
the shorting wire from the
output terminals.
The next time the unit turns on it will be restored to
the *RST or factory default state.
Only perform steps 19 to 29 if you are verifying an Agilent 66319B or 66319D unit.
Procedure
Display
Explanation
19. Turn the unit on. Wait for
selftest to complete and
press
Shift, Channel
.
2
0.025V 0.0002A
Shift Channel
toggles between channel 1 and channel
2. The left-most digit of the display identifies the
output channel that is presently being controlled. It will
indicate a "1" for channel 1, or "2" for channel 2.
20. Press
Voltage,
Enter Number,
<12>, Enter
.
2
VOLT <12>
Programs the output 2 voltage to 12 volts.
21. Press
Output On/Off
2
12.005V 0.0002A Turns the main output and output 2 on. The
Dis
annunciator is off, but the
CV
annunciator is on.
22. Press
Output On/Off
2
0.000V 0.0000A
Turn all outputs off.