PS2520 Series Performance Verification
Handheld and Benchtop Instruments Basic Service
37
4. Ensure that the power supply output is disabled. Configure the DMM to
measure 50 VDC across the front panel OUTPUT 2 (+) and OUTPUT 1 (–)
terminals.
5. Press SHIFT
→ SERIES/INDEP to configure OUTPUT 1 and OUTPUT 2
for series operation. Verify that the “SERIES” indicator lights up on the
display.
6. Press OUTPUT ON/OFF. Verify that the “OUT” indicator lights up on the
display.
7. Verify that the DMM reads between 39.930 and 40.070 VDC.
8. Press VOLTS
or VOLTS to adjust the power supply output voltage
until the DMM reads 40.000 VDC.
9. Verify that the power supply VOLTS readout indicates between 19.965 and
20.035 V.
10. Press VOLTS SET. Set the power supply output voltage to 0.1 V.
11. Set the DMM to measure 1 VDC across the power supply OUTPUT 2 (+)
and OUTPUT 1 (–) terminals.
12. Verify that the DMM reads between 0.1498 and 0.2500 VDC.
13. Press OUTPUT ON/OFF. Verify that the “OUT” indicator turns off.
Parallel Operation. Use the following steps to check the parallel mode accuracy.
1. Press SHIFT
→ OUT 2; verify that the “2” indicator lights up on the display.
2. Set up the power supply as follows:
VOLTS SET 20 V
OVP SET 22 V
3. Press STEP SET. Set the VOLTS SET to 0.05 V.
4. Ensure that the power supply output is disabled. Configure the DMM to
measure 25 VDC across the power supply front panel OUTPUT 2 terminals.
5. Press SHIFT
→ PARA/INDEP to configure OUTPUT 1 and OUTPUT 2 for
parallel operation. Verify that the “PARA” indicator lights up on the display.
6. Press OUTPUT ON/OFF. Verify that the “OUT” indicator lights up on the
display.
7. Verify that the DMM reads between 19.965 and 20.035 VDC.
8. Press VOLTS
or VOLTS to adjust the power supply output voltage
until the DMM reads 20.00 VDC.
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