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Alternative methods for calibrating

Question asked by Lyncheese on Jan 2, 2016
Latest reply on Jan 11, 2016 by Lyncheese

Hello, ADE Supports !

 

Firstly, Merry Christmas and Happy New Year !

And Thank you for the supports from the past years.....

It's greatly appreciated !!!

 

This will be my first discussion in this year.

 

So, I have designed board both for ADE7953 and ADE7816.

In the past, when I'm in the middle of making it,

honestly, I only follow several steps which I think is needed to make the chip is working.

 

In case of the ADE7953, this is what I did :

- Making the breakout board/minimum system

- Set the settings needed for UART communication

- Test to read specific register == SUCCEED

- Calibrate or more accurately, I directly search for the V Constant and I Constant

     without any additional steps like using The Line Cycle Accumulation, Phase/Offset/Gain calibration,

     since at that time, I only concern to the Demo dealine which is super-close !

     In the end, with the steps above I manage to show the Vrms and Irms current value, and It will change as I change the load.

     With that I survive the Demo stage.

 

As the demands want more features, such as more channel. Therefore I moved to use the ADE7816.

This time I want to do some more accurate reading.

The problem is there are no accurate meter or reference meter I could use for calibrating.

So, I wonder is there any alternative ways to calibrate the ADE7816 without accurate source/reference meter ?

At least I got "better but not so accurate" reading.

 

I'll use accurate source eventually, but I think It will takes time, while I have to catch the deadline

for my second stage of the Demo.

 

Any suggestion will be appreciated.

Thank you

 

Warm regards.

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