If you have such a welder, without possibility to connect a Foot Pedal,
i've found out how you can modify your welder to connect a Foot Pedal, to control via this the "welding current" and "Start/Stop" welding.
here is the thumbnail, of the Image, ~7MB
click on the thumbnail, to open the image, and then click on the image, to get the full size
for using "ON/OFF" via the Foot Pedal, use the Connector for the hand Switch on the Front Panel, because this is electrical interference suppressed.
For the Foot Pedal Potentiometer & ON/OFF Switch, use a shielded Cable, and an extra wire for Ground connection (Pedal to Welder housing)
when i find out other Informations, like function, features, control voltages, and signals, i will post it here.
not hesitate to ask or tell your own experiences
but this thread should only be for this type of WSE and very similar types. (because of the simplicity)
photos from my Modification are following when my foot pedal are finished
for everyone who knows what the hot end of the soldering iron is, this modification should be easy ;-)
do not modify anything if you don't know about electricity and/or what potentiometers are for, or you have two left hands
Unplug the device before opening.
I assume no liability for any damage