Section 2: General operation
Series 2200 Programmable DC Power Supplies Reference Manual
2-4
2200S-901-01 Rev. C / March 2016
Voltage output check
To verify basic voltage functions without a load, follow these steps.
1. Remove all leads from the output connectors.
2. Turn on the power supply.
3. Press
Shift
and
Menu
(
1
).
>Default Set
shows on the display.
4. Press
Enter
to bring up the default settings options.
No
and
Yes
appear on the display.
5. Press the right arrow key to select
Yes
. Press
Enter
to enable the default settings.
6. Press the front-panel
On/Off key
to enable the output. The
OFF
message on the display turns off
and the
CV
message on the display turns on. The upper line of the display shows the actual
output voltage and current. The lower line shows the settings.
7. Check that the front-panel voltmeter properly responds to pressing keys on the numeric keypad.
Press
V-set
, use the numeric keypad to set the voltage value to
0
and press
Enter
. Check if the
displayed voltage value is approximately 0 V and check if the displayed current value is
approximately 0 A. You can confirm the 0 V setting with a voltmeter.
8. Press
V-set
and use the numeric keys and
Enter
to set the voltage value to the maximum
allowable for your power supply, as indicated on the instrument’s front panel.
9. Check if the displayed voltage value is approximately the same value as the voltage setting.
Current output check
To verify the basic current functions with a short across the power supply output, follow these steps:
1. Remove all leads from the output connectors.
2. Turn on the power supply.
3. Press
Shift
and
Menu
(
1
).
>Default Set
shows on the display.
4. Press
Enter
to bring up the default settings options.
No
and
Yes
appear on the display.
5. Press the right arrow key to select
Yes
. Press
Enter
to enable the default settings.
6. Ensure that the output is disabled and the display
OFF
message is turned on. If needed, press the
On/Off
key to ensure that the output is disabled and the
OFF
message is turned on.
7. Use an insulated test lead to connect a short across the (+) and (-) output terminals.
Use a wire size sufficient to handle the maximum current. You should use at least a 22 gauge
wire.
To satisfy safety requirements, always use load wires heavy enough not to overheat when
carrying the maximum short-circuit output current of the power supply. If there is more than
one load, then every pair of load wires must be capable of safely carrying the full-rated
current of the power supply.
8. Press the
On/Off
key to enable the output. The
CC
message should be lit.
9. Press
I-set
and use the numeric keypad and
Enter
key to set the current value to
0
A. Check if
the displayed current value is approximately
0
A.
10. Press
I-set
and use the numeric keys and
Enter
to set the current value to the maximum
allowable for your current supply. Check if the displayed current value is approximately the same
value as the maximum allowable.
11. Turn off the power supply and remove the short wire from the (+) and (-) output terminals.