WeatherHill
New Member
- Messages
- 3
- Location
- Norway
Hi all, hope you're well!
In january of this year, I bought a multiprocess-machine (Sherman Digitig 200 AC/DC Multipro) for hobby-welding of different projects. The machine was bought through a colleague of mine from Poland, so although the machine is under warranty, there's no quick and easy way to resolve what might be a simple issue to resolve on my own.
The machine is fully operational and I can weld with it in both AC and DC, with some precautions when handling and placing the torch in its holder between welds.
I have two issues...the first issue arised in a matter of days after I received the machine. The second issue a few weeks after. The machine has been stationary in a dustfree, vibration-free, non-humid evironment from the getgo.
1) Mild inconvenience / annoyance
High-frequency start has an intermittent issue that forces me to somehow touch the workpiece and lift off before pressing the trigger. In the cases where it's not working, one would hear the HF-circuit engage and notice the gas-valve opens, but no arc. After a few sec, when the initial process has stopped, I can lightly toucht the workpiece with the electrode, lift off and start the arc as expected.
I initially thought this might be an issue with the gap in the high-frequency circuit beeing too far appart or too close, but have verified that the gap is correct. Appreciate any advice here anyway.
Dust, humidity and such is not a topic, as the welder is isolated from all other processes I might do before or after welding.
2) Very annoying and in-fact might also cause dangerous incidents
Self-triggering ARC-initiation. The machine can sometimes try to start an arc on it's own, just like if I pressed the torch-trigger. I first thought this might be an issue with the trigger itself, but this still happens if I disconnect the trigger-connector to the welder.
Again, this happens intermittently and might trigger when I am placing my torchhand in preparation for a weld (weld starts prematurely) and when the torch is in it's torch-stand between welds and when preparing fitment.
So the precaution I meantion before would in this case involve shutting off the machine completely whenever I have to leave the room or when having to spend a bit of time handling the workpiece, aligning pieces etc, as the welder might try to initiate an arc multiple times during these minutes.
I am no professional welder or welding-technician, nor am I an expert in electronic-diagnostics, so except me checking the gap on the high-frequency start circuit, I have not done any further diagnostics.
Appreciate any and all constructive feedback relating to these two issues or any feedback that helps me narrow potential causes down.
Kind regards
WeatherHill
In january of this year, I bought a multiprocess-machine (Sherman Digitig 200 AC/DC Multipro) for hobby-welding of different projects. The machine was bought through a colleague of mine from Poland, so although the machine is under warranty, there's no quick and easy way to resolve what might be a simple issue to resolve on my own.
The machine is fully operational and I can weld with it in both AC and DC, with some precautions when handling and placing the torch in its holder between welds.
I have two issues...the first issue arised in a matter of days after I received the machine. The second issue a few weeks after. The machine has been stationary in a dustfree, vibration-free, non-humid evironment from the getgo.
1) Mild inconvenience / annoyance
High-frequency start has an intermittent issue that forces me to somehow touch the workpiece and lift off before pressing the trigger. In the cases where it's not working, one would hear the HF-circuit engage and notice the gas-valve opens, but no arc. After a few sec, when the initial process has stopped, I can lightly toucht the workpiece with the electrode, lift off and start the arc as expected.
I initially thought this might be an issue with the gap in the high-frequency circuit beeing too far appart or too close, but have verified that the gap is correct. Appreciate any advice here anyway.
Dust, humidity and such is not a topic, as the welder is isolated from all other processes I might do before or after welding.
2) Very annoying and in-fact might also cause dangerous incidents
Self-triggering ARC-initiation. The machine can sometimes try to start an arc on it's own, just like if I pressed the torch-trigger. I first thought this might be an issue with the trigger itself, but this still happens if I disconnect the trigger-connector to the welder.
Again, this happens intermittently and might trigger when I am placing my torchhand in preparation for a weld (weld starts prematurely) and when the torch is in it's torch-stand between welds and when preparing fitment.
So the precaution I meantion before would in this case involve shutting off the machine completely whenever I have to leave the room or when having to spend a bit of time handling the workpiece, aligning pieces etc, as the welder might try to initiate an arc multiple times during these minutes.
I am no professional welder or welding-technician, nor am I an expert in electronic-diagnostics, so except me checking the gap on the high-frequency start circuit, I have not done any further diagnostics.
Appreciate any and all constructive feedback relating to these two issues or any feedback that helps me narrow potential causes down.
Kind regards
WeatherHill