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PA3000 Four-channel, Multi-phase AC/DC Power Analyzer
Efficiency Testing Single Phase Applications
DEMONSTRATION GUIDE
17. Generally a 30 minute warm-up period is required by the standard, before
any efficiency measurements are made on an AC-DC Power Supply.
18. Check for power stability measurements for five minutes on the input of the Power Supply
and then log an efficiency measurement at 100% load.
19. Repeat this step at 75%, 50%, 25% and 0% load by entering those values on the
front panel of the 2380 Electronic load.
20. Let the Power supply stabilize for five minutes between each load step change.
FURTHER SETTINGS IF REQUIRED
Data Logging. The logging feature allows you to log data over time for prolonged efficiency
testing involving load and source sweeps. Use the DATA OUT key to log data to any compatible
flash drive connected to the front panel USB connector. The actual logging interval can be
changed by pressing
and going to
Interfaces
USB Host Data Out. The log file will be
saved as a .csv file.
Waveforms and Harmonics. To monitor AC input waveforms and harmonics, use the
or
key respectively. Switch between channels by using the arrow keys on the left panel.
Various options for viewing waveforms and harmonics can be selected from within the Graphs
and Waveforms menu.
Figure 1-4.
Harmonic bar
chart on the
PA3000.
2380 Electronic Load Programming. The ‘List’ mode on 2380 Electronic Load can be
used to automate efficiency testing.
• The load can be set up to automatically step through a set of different load values.
The load can be programmed to execute the list with a fixed time at each step.
• Alternatively, the load can be triggered via a hardware, external trigger or a command
from a controller.
• For more information on how to setup list mode on 2380 Electronic Load, refer to the product
user manual (Document no: 2380-120-60-901-01 Rev. A)
