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Review for TIG Button hand amptrol for HTP Invertig 221

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Re: Review for TIG Button hand amptrol for HTP Invertig 221

Postby Poland308 » Tue Apr 18, 2017 10:31 pm

I bough the miller one for the little 150stl. It's a lot better than scratch start but it wasn't worth the $180 they charged. It wasn't my money but it just wasn't great.
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Re: Review for TIG Button hand amptrol for HTP Invertig 221

Postby Rupes » Wed Apr 19, 2017 5:05 am

I looked into making something like this a while back. But the only way I could figure it is to use a pressure sensor, make it a little hardier with a puck or button and heatshrink and hook it up to an arduino back near the machine then have the arduino read the sensor and control a variable resistor hooked up to the welder via the foot pedal input. I figured it would cost at least $100 but probably closer to $150 with no guarantee it would even work just for a dodgy prototype. Coupled with the fact I don't know a thing about Arduino's I shelved the idea.

So if its up and running and working I'd say that is a steal at the price given what I think is involved in putting it together and materials and such.
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Re: Review for TIG Button hand amptrol for HTP Invertig 221

Postby motox » Thu Apr 20, 2017 6:11 am

yesterday i spoke with Dave Vogel of tigcontrol.com and the
controller for HTP should be available on their website by the
weeks end if anyone else in interested. $199.00
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Re: Review for TIG Button hand amptrol for HTP Invertig 221

Postby MarkL » Thu Apr 20, 2017 4:52 pm

I contacted the company too, they're working on one for the Lincoln Square wave 200.
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Re: Review for TIG Button hand amptrol for HTP Invertig 221

Postby Oscar » Wed Apr 26, 2017 9:24 am

It occurred to me to see how close the TIG Button got to the machine requested amperage. The values were a little lower than I had hoped, but then it also occurred to me, well just how close does the stock foot pedal deliver the requested amperage as well. Then I felt better. The TIG Button is within 1% difference from the stock foot pedal, and within 3% from the amperage requested at the machine panel.

Differences are minimal, but then again, even the stock foot pedal is off, or it might even be one of those production tolerances thing where it is the machine itself that is off. I wonder how other machines and their foot pedals stack up.

Image

Any Invertig 221 takers out there?
Last edited by Oscar on Sun Apr 30, 2017 1:56 pm, edited 1 time in total.
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Re: Review for TIG Button hand amptrol for HTP Invertig 221

Postby Poland308 » Wed Apr 26, 2017 5:42 pm

I emailed and got a response as well. I've been looking for a new thumb control for my TA 186. It's on the list of getting tested now said they should be out in a month or so.
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Re: Review for TIG Button hand amptrol for HTP Invertig 221

Postby MarkL » Wed Apr 26, 2017 7:32 pm

Oscar wrote:It occurred to me to see how close the TIG Button got to the machine requested amperage.

How are the values for requested and actual amperage obtained?
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Re: Review for TIG Button hand amptrol for HTP Invertig 221

Postby Otto Nobedder » Wed Apr 26, 2017 7:41 pm

MarkL wrote:
Oscar wrote:It occurred to me to see how close the TIG Button got to the machine requested amperage.

How are the values for requested and actual amperage obtained?


"Requested" is what the digital display on the machine says.
"Actual" is measured with a high-quality clamp-over amp meter, probably made by Fluke.

Also, all our ASME code work is done on a machine that's calibrated annually, so "requested" and "actual" always match within 1% of full scale, so long as the machine/remote combination remains the same.

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Re: Review for TIG Button hand amptrol for HTP Invertig 221

Postby Oscar » Thu Apr 27, 2017 5:13 pm

The machine itself tells you actual amperage from the digital display as you are welding. When you vary the amperage (using the amperage controller of your choice, whether it be a foot pedal or hand amptrol), it is shown in real time. While not welding, the value on the display is the "max" that the machine should put out when the amperage controller is physically set to it's maximum.
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Re: Review for TIG Button hand amptrol for HTP Invertig 221

Postby Just Nick » Wed May 03, 2017 12:16 pm

I ordered one of these TIG Buttons a few days ago I hope it gets here soon.
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