Electric consuption for triphase dryer conveyor(with electric meter)

[tlhsglm]

Hi dear friends,

My friend's father have a dryer like below youtube video(video is not mine) . I will open it and put insulating materials. But i want to see how much it will effect electric consumption.

Machine first heating up for half hours and then we are putting textiles to dry. i want to see electric consumption for like 6 hours. Because -as you know- motor is keeps running but heaters not open or at same power for everytime, i have to see consumption for a while.

I have done lot of arduino projects and some monophaze projects but none triphaze so i want to do it right and safe.

Kindly can you please help on below?

I want to see how much electricty this machine consumpts in 1 day. I have uni-t ut89x multimeter but im not sure how much amps machine consumps. and since i want to see it's one day consumption i had and idea that i pictured below;

Can electric meter mislead me? What do you think about my solution?

https://www.photobox.co.uk/my/photo/full?photo_id=504499003076

[tlhsglm]

please

[Ground_Loop]

I would recommend you use a proper power logger.  Fluke 1748 for example.  They are widely available for rent.

[Siwastaja]

Or just a normal electricity meter (energy meter). Available everywhere. Intended for billing, accurate within a few %. Cost for a 3-phase model is something around $100, though. Maybe you could find a used unit, even an old mechanical.

If you want actual logging, these have at least a blinking LED you can optically couple to, and many have open collector optoisolated pulse output for easy interfacing with any logging system. One pulse per Wh or similar.

[tlhsglm]

thanks, my paint file at first message includes three phase billing energy meter i will use it

[Siwastaja]

The link does not work and "photobox.co.uk" has broken server configuration not returning 404/403/whatever the error is, but instead silently redirecting to front page.