Troubleshooting 350A TIG Welder Issues

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SUMMARY

The discussion centers on troubleshooting issues related to the Miller Dynasty 350A TIG welder, specifically concerning high-frequency (HF) interference. Users report that the HF start feature can inadvertently activate nearby electronic devices, such as sprinkler systems and home alarms. Solutions suggested include turning off the HF feature, which may hinder aluminum welding, or relocating the welder away from sensitive electronics. Grounding techniques were also mentioned as a potential method to mitigate interference.

PREREQUISITES
  • Understanding of high-frequency (HF) welding technology
  • Familiarity with Miller Dynasty 350A TIG welder
  • Basic knowledge of electrical grounding techniques
  • Awareness of electromagnetic interference (EMI) issues
NEXT STEPS
  • Research grounding techniques for welding equipment
  • Explore solutions for mitigating electromagnetic interference (EMI)
  • Learn about the impact of high-frequency start on welding performance
  • Investigate alternative welding machines with lower EMI emissions
USEFUL FOR

Welders, electrical engineers, and hobbyists using TIG welding equipment who are experiencing interference issues with electronic devices in proximity to their welding setup.

JerryG
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I have a large 350A TIG welder in my garage that I like to use. The problem is that sometimes, when I am welding with it, it will do strange things like my cause my sprinkler system to turn on or the alarm on my house will just go off even though it wasn't set in the first place. Any ideas?
 
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your high-frequency start or arc stabilizer is what is doing it, I have the same problem with mine (miller dynasty dx) it turns the light on the garage door opener on and off at random times. There isn't much you can do about it other than turning the HF off (good luck with aluminum) or moving the machine further away from your sprinkler timer and your home alarm. Sorry, I think this is one of those "nature of the beast things" I have also heard stories of the HF in welders killing cell phones too, so watch out for that too
 
That's funny. That's the same model as mine (miller dynasty 350 DX). Any ideas on dealing with HF interference, anybody? Maybe special grounding?
 

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