PS2520 Series Performance Verification
38
Handheld and Benchtop Instruments Basic Service
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
terminals.
12. Verify that the DMM reads between 0.0749 and 0.1250 VDC.
13. Press OUTPUT ON/OFF. Verify that the “OUT” indicator turns off.
14. Press SHIFT
→ PARA/INDEP to reconfigure the outputs for independent
operation. Verify that the “PARA” indicator turns off.
Complete the following procedures to verify current setting and readout
accuracy.
Outputs 1 and 2. Use the following steps to check the OUTPUT 1 and
OUTPUT 2 accuracy.
1. Press SHIFT
→ OUT 1; verify that the “1” indicator lights up on the display.
2. Set up the power supply as follows:
VOLTS SET 10 V
CURRENT SET 2.5 A
OVP SET 11 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 1 (2) terminals.
5. Press OUTPUT ON/OFF. Verify that the “OUT” indicator lights up on the
display.
6. Verify that the DMM reads between 2.485 and 2.515 A.
7. Press CURRENT
or CURRENT to adjust the power supply output
current until the DMM reads 2.500 A.
8. Verify that the power supply CURRENT (A) readout indicates between
2.485 and 2.515 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.
Current Set Accuracy
To Next Page
Loading...
