PS2520 Series Performance Verification
14
Handheld and Benchtop Instruments Basic Service
4. Ensure that the power supply output is disabled. Configure the DMM to
measure 100 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 71.900 and 72.100 VDC.
8. Press VOLTS
or VOLTS to adjust the power supply output voltage
until the DMM reads 72.000 VDC.
9. Verify that the power supply VOLTS readout indicates between 35.950 and
36.050 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 36 V
OVP SET 37 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 40 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 35.950 and 36.050 VDC.
8. Press VOLTS
or VOLTS to adjust the power supply output voltage
until the DMM reads 36.00 VDC.
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