User Manual

Section 2: General operation Series 2200 Programmable DC Power Supplies Reference Manual
2-4 2200S-901-01 Rev. A/November 2011
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.