The oscilloscope can only be used for one phase, you will not be able to use Pass/Fail for several phases at the same time. It can only be set to one channel.
It is worth using a differential measuring probe to monitor the voltage, you will need a current measuring probe to measure the current.
The battery does not last long, a few hours max.
I found three options when I did this myself.
1. You buy a power meter with a bluetooth connection, which you can connect to an Android device and use it to log in at some level.
2. buy two Bluetooth multimeters and/or lock pickers, one for current, the other for voltage, which you also connect to a phone, if you're lucky, you can set the logging interval in its software.
3. buy a cheaper energy quality meter.
3.1 I found one that can be connected directly, but it has an RS485 connection, I didn't check what it can do.
I couldn't find much information about it.
3.1 There is the ME435 Meter, which is an independent item, for approx.: 400-500 USD. ETCR4320, ETCR4300 that I still found.
3.2 borrow one for that little time. If you need to use it a lot, it is cheaper to buy one, if you only need it now, then borrow one.
The scope has a high sampling rate, you can slow it down, but then you need one with a lot of memory, otherwise you won't be able to set it properly. And it's even more expensive because of the extra accessories.
The consumption meters are cheaper, but the sampling is slower, which I use 1 sample per second.
The multimeter is a little faster, 3 samples/second, and you can use it for other things later.
If everything is true, the ME435 works with 8000 samples/second.
For me, the end result was the Atorch AT4PB consumption meter, connected to the Unihertz Tank phone, very long operating time. Only the bluetooth version. In any case, not the TUYA and similar WiFi nonsense...
And two Owon CM2100B.
For these, there is still work to be done to evaluate the result.
The Schneider PM5110 mentioned by Adam4521 is 64 samples per second if I see correctly.