Measuring power output

[Drains]

If setting one is 25A and setting 20 is 250A and the steps are even then each increment would be approximately 11.25A .

It's volts mate...

Don't forget that wire diameter and feed speed both have a bearing on output current too.

Correct.


Woz, you fail the test!

C minus.

 

[Robotstar5]

It's nice to see the term "current" being used instead of "amperage" which as an electrician has never seemed correct!

 

[shenion]

Yes, on smaller MIGs, the OCV will not be real accurate. My Clarke 130EN on the highest setting is 26V. That is 130A. The miller calculator shows about 18V. The Miller is probably the welding voltage you would see on a meter while welding.

Since the 130 has an OCV of 26 but achieves only 130A, that explains the low duty cycle. It is losing 8V under load in the transformer and reactor.

On my Clarke I just had memorized the settings (only 4). Power 1 - speed 2.5, power 2 - speed 3 etc. I knew what settings for different steel thickness. With all those settings, you would probably want to keep notes like 2mm is power x and speed y with 0.xmm wire.

On my Miller, it has a meter and I have looked at it while welding a test piece. Due to filtering, the OCV is much higher with no load (I added a large capacitor bank.)

The weld calculator here will probably be useful to get the settings

 

[Wozzaaah]

I know it's volts Si, I was thinking theoretically that if all the other parameters were the same then the current would rise by 11.25 per volt step......but........as the fat bloke on the bank ad says........"it doesn't work like that".


Can I have a new score please?

 

[Drains]

I know it's volts Si, I was thinking theoretically that if all the other parameters were the same then the current would rise by 11.25 per volt step......but........as the fat bloke on the bank ad says........"it doesn't work like that".


Can I have a new score please?

c+ then. You just pass, with mitigating circumstances.

 

[Wozzaaah]

Gonna post something else for you to mark me on a bit later, not expecting anything as high as C+ for it though!