Power quality measurement data growth calculation of PM8000

[Anonymous user]

Hi

I want to know how long PM8000, the expected successor of ION7550/7650 can store following  measurement

1. 1st - 63th harmonic V,I
2. sag & swell
3. waveform ( triggered by event, not periodically)

If it can holds for more than 1 month, I can use PM8000 w/o connecting to PC for remote logging services.

[DanL]

I believe officially the PM8000 is replacing the ION7350 and PM800 series, even though its feature set seems a lot closer to the ION7550.

The logging capability (at least for first release) of the PM8000 is very comparable to the 7550 (also 10MB of logging).

A rough theorectical calculation gives me this:

63 harmonics from 3xV and 3xI channels uses 24 DRE modules

1 month of 10-minute data on 24 DRE modules uses approximately 9MB (out of 10MB on first release of PM8000).

The remaining 1MB would have to be split with waveforms and other logged data.

[JamesAZZO]

I thought the memory of the PM8000 would be in the 1GB range? Is that Wave 2?

[Anonymous user]

James - Yes.  Wave 2 will remove the existing limits and support the extension of the memory using an industrially rated micro-SD memory card.  While logging and frameworks are limited to 10MB on the PM8000 today, COMTRADE files, web pages, and other files are stored outside of this space allowing you to have additional logging capability.   More on the memory enhancements will be coming soon.