Hi, I'm Jian Cong, and I'm a hardware engineer at Keysight Technologies
Today, I present to you the E-36-312A 3-channel Programmable DC Power Supply
with its built-in Data Logger capability.
That also means - while typically most test applications involve powering up a DUT
with a power supply and taking measurements from it with an external data logger
you’ll need just one instrument to do both of those functions with this model.
First, let’s plug in a USB stick – you need one with at least 7 Megabytes of free space.
Then press the “Data Logger” soft key to get into the Data Logger page.
On this page, you can choose what you’d like to measure from any of the 3 channels
and display the trace in graphical format.
Next, press the “Properties” key.
Here, you can configure the Power Supply’s vertical and horizontal settings
such as volts per division, voltage offset, time per division and time offset.
Let’s go ahead and press “Log Settings”.
Here, you can set both the duration and interval for data logging.
With this power supply, you can run data logging with interval from anywhere
between 200 milliseconds to 60 seconds.
I’m going to set the data logging duration to 20 seconds at 200 millisecond intervals.
Next, let’s configure the “Trigger Source”.
We can configure Trigger Sources as "Run/Stopped' key which is equal to this key.
"DIO Trigger In" which is going through the digital IO key
or Remote key when you can send command throught SCPI
I will choose the “Run/Stopped” option to manually trigger the power supply to start data logging.
We can also set the “Log Min/Max” values.
When this is enabled, the minimum and maximum values will also be recorded.
Note though that this will triple the file size as you can see from the required memory.
Bear in mind that you can’t exceed 7 Megabytes.
Size is dependent on the configurations selected such as
the number of traces, duration and sample period.
Finally, under “File Selection”, you can choose to change the filename from the default name.
I would recommend checking the append date/time option to avoid overwriting your data logging file.
Now that we’ve got the data logger set up, let’s run the data logger.
As you can see, it’s starting to capture data
and we have about 10 seconds remaining.
Okay, our data logging is complete.
Let’s press “Auto Scale” so traces would auto-scale and display nicely in the graphs.
If you click on “Waveform Settings”, you can change the vertical and horizontal settings
easily by selecting the “+” or “-” keys.
If you want to, you can also capture the waveforms shown on the screen
and have it saved to the USB drive.
Just press the “Meter View” button on the power supply here for more than 3 seconds.
And, the image files will be save into your USB drive.
Alright. Let’s export all the captured data to CSV format
Go to “Properties”, “File Selection” and “Export File”, and press "Export".
Once data has been exported, pull out the USB stick, and plug it into your PC.
As you can see, there are 3 files in the USB drive.
There’s the BITMAP screen capture, the D-LOG binary file format, and the CSV file
which we have exported earlier.
Let’s open the CSV file with Excel.
You can see that data is logged in rows at every 200 millisecond interval.
Each column represents the different parameters captured in the data logging exercise.
Further detailed analysis can be carried out from here.
That was a quick overview of the “Data Logger” capability in the E36300 Series Power Supplies.
It’s useful in applications that require both a Power Supply and a Measurement Device
and it’s really easy to use.
I hope you enjoyed the video, and thanks for watching.