PS2520 Series Performance Verification
16
Handheld and Benchtop Instruments Basic Service
12. Press SHIFT
→ OUT 2; verify that the “2” indicator lights up on the display.
13. Repeat steps 2 through 11 above to measure the OUTPUT 2 current setting
and readout accuracy.
Output 3. Use the following steps to check the OUTPUT 3 accuracy.
1. Press SHIFT
→ OUT 3; verify that the “3” indicator lights up on the display.
2. Set up the power supply as follows:
VOLTS SET 6 V
CURRENT SET 3 A
OVP SET 7 V
3. Press STEP SET. Set the CURRENT SET to 0.002 A.
4. Ensure that the power supply output is disabled. Configure the DMM to
measure 10 amperes DC across the front panel OUTPUT 3 terminals.
5. Press OUTPUT ON/OFF. Verify that the “OUT” indicator lights up on the
display.
6. Verify that the DMM reads between 2.984 and 3.016 A.
7. Press CURRENT
or CURRENT to adjust the power supply output
current until the DMM reads 3.000 A.
8. Verify that the power supply CURRENT (A) readout indicates between
2.984 and 3.016 A.
9. Press CURRENT SET. Set the power supply output current to 0.1 A
10. Verify that the DMM reads between 0.089 and 0.111 A.
11. Press OUTPUT ON/OFF. Verify that the “OUT” indicator turns off.
Parallel Operation. Use the following steps to the check 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 10 V
CURRENT SET 1.5 A
OVP SET 11 V
3. Press STEP SET. Set the CURRENT SET to 0.002 A.
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