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Dialarc HF

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  • #16
    Not everyone needs to study code line for line but its worth a little reading AFTER a guy gets a little experience. I am a slow learner, taken me a long time to know what I dont know. I really dont care anymore in a certain way, my own interest is more forensic about the learning process and in the real world want my equipment to meet code standard.
    I see very little in fundamental circuit design when these questions are answered, becomes,,, what I did was put a 6 on everything and its right and code cause someone told me so.
    While the code is not a design book good design follows the code and the welding people find a way to me it vs changing it to meet machines. A little history is interesting and the DVI has really brought out some details regarding connection to service and equipment protection, specifically faults.
    When I start to do a little study, nothing serious but finally really following owners manual with code and the allowances etc got interesting and on a couple occasions called Miller during that time. Was during the evoultion/birth to the inverter so to speak and I happen to get newer engineer on the phone, I had a couple compliance questions and I am sure they were hired for genius with the new teck did not have specific background in this connection.
    I ask elsewhere and (not a Miller thing) but like other PHD types you can get degree without opening electric code book,,,, dozens of other books but this one not required to open in many cases.
    I can see how the welding machine co needed the new guys, they got othgers that do for sure but was neat to talk to someone 2x as bright didnt fully understand this connection and I am actually surprised how many trades guys do not really grasp some of the basic principle the whole thing operates it on.
    I dont know squat and barely count to 10 so myu ability is limited but after a while and with some pecking I kinda get it. There is a difference in understanding all the particular math to it than having a picture of how it works. We have done a good job with 3 and 4 wires but kind of missed otyher fundamental along the way and it now blurs the rest of the picture. Same for fundamental paint booth design, there is always the guy gonna tell us about the pressure booth he built, etc and doesnt have a concept difference of clean room and paint booth. Can a guy design,,,, even working design it without having a basic concept?


    • #17
      Well I did not want to take the cover off the plasma cutter too soon, hopefully you can see the picture we have the ground clamp wire at 10mm which is rated around 50 amps and we have our 15 to 20 amp- 14 gauged wire that directly hooks to the grounding wire to the circuit board.

      See how that's a rip off now, same 14 gauged wire is on the cutting side Click image for larger version

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      I have a cleaning brush pointing to the coil looks like there using a hall effect like a coil off a car distributor that goes through a set of points and the wound 14 gauged wire wraps around some magnets or steel and they have a small primary wire wrap a couple of times coming from the points.
      inducing the primary current, both 14 gauged wires are hooked to 50 amp cables.

      I wonder why it does not cut 1/8th material Mean while it's saying it will cut up too 1/2 plate at 110V it's a tinfoil cutter or a cheap *** cookie sheet cutter, I could do that with pair of tin snips.

      Like buying a welder that has 200 amp cables and it only welds on cookie sheet tin pull off the cover and see 14 gauged wires running to the 200 amp cables HuH!
      You can take your sorry China *** back where it came from!
      Vevor says we don't what your taking about you just sound unhappy with product - yet there is 10 positive reviews for this particular model, I wrote a bad review and they won't post it either.

      They don't want to do a refund either. I thought someone must have just put the wrong plug wire on it, as most times these machine don't have a plug on them as you can wire for 110 or 220 and china is cheap naturally.

      I'll try replacing the 14 gauge wires with 10mm and see if that makes a difference, for science and North American ingenuity vs the cost of playing the shipping game $$$$.

      I'll keep a running post going after I play with with it.


      • #18
        Try it on 240V.


        • #19
          Originally posted by weldslikebutter View Post
          ...we have the ground clamp wire at 10mm which is rated around 50 amps and we have our 15 to 20 amp- 14 gauged wire that directly hooks to the grounding wire to the circuit board....
          I'm an electrician and I don't know what you mean by this. What exactly are you measuring at "10mm"? What is the duty cycle of the job being done by the 14-ga wire? How many amps is it expected to carry during that duty cycle?
          china is cheap naturally.

          I'll try replacing the 14 gauge wires with 10mm...
          Actually, China produces crap in some factories and very good products in other factories. After the costs of tariffs, which do you think is going to be purchased by American importers?
          Last edited by MAC702; 05-16-2022, 03:20 PM.