PS2520 Series Performance Verification
Handheld and Benchtop Instruments Basic Service
31
2. Press SHIFT
→ PARA/INDEP to configure OUTPUT 1 and OUTPUT 2 for
parallel operation. Verify that the “PARA” indicator lights up on the display.
3. Set the DMM to measure 5 amperes DC.
4. Set up the power supply as follows:
VOLTS SET 36 V
CURRENT SET 3.0 A
OVP SET 38.5 V
5. Press OUTPUT ON/OFF. Verify that the “OUT” indicator lights up on the
display.
6. Adjust the output of the Variac from 108 to 132 VAC (120 V range) or 198
to 242 VAC (220 V range). Verify that the DMM current variation is ≤0.006
A over the adjustment range.
7. Press OUTPUT ON/OFF. Verify that the “OUT” indicator turns off.
8. Press SHIFT
→ PARA/INDEP to reconfigure the outputs for independent
operation. Verify that the “PARA ”indicator turns off.
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. Ensure that the power supply output is disabled. Connect the DMM and
2.2 W 50 W resistor to the front panel OUTPUT 3 terminals. See Figure 6
for details.
3. Set up the power supply as follows:
VOLTS SET 6 V
CURRENT SET 3.0 A
OVP SET 7 V
4. Repeat steps 6 through 8 of the Outputs 1 and 2 procedure above.
This concludes the PS2520 and PS2520G performance verification procedures.
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