Munkul
Jack of some trades, Master of none
- Messages
- 7,371
- Location
- Cumbria
I have my TIG setup like this
Lorch handy tig, UD watercooled a-LTW3000 torch with a link across the flowswitch pins, and a dumb S/H cooler switched on seperately. Simple.
Now the Esseti cooler unit has a flowswitch and a socket on the front, and i acquired a plug for the socket... but the flowswitch is broke, So I've just not bothered with it, I'm pretty good at remembering to turn it on.
But then it leads to situations like last night, where my brother was welding around 100 amps for a good few minutes without the cooler switched on. Great Not sure if it's damaged the torch yet, but won't have done much good.
So, I just need a working flow switch, to replace the existing, wire into the socket and plugs, and make a really neat setup for the Lorch's no-flow interlock.
Flow switches seem to be generally quite expensive, though!
These seem cheap:
https://www.enrgtech.co.uk/buy/product/ET14060514/197081
https://www.amazon.co.uk/Gems-Sensors-209876-FS-380-Polypropylene/dp/B005T691LY
Looking at the 0.25 or 0.15 GPM versions which should trigger at 1.1/0.6 lpm, the cooler should be delivering 2lpm+, so in theory it should work?
3/8"NPT should connect in pretty easily, and it has the NO connection (some of these switches are NC which is no good for the Lorch interlock)
Or is there something else in the sub-£75 bracket I should consider?
Another option might be if the torch is cooked, going with an i-LTW3000 torch with Powermaster control (Like I should have done in the first place) but obviously quite a lot more expense! and will interlock with high temp, not lack of flow.
Lorch handy tig, UD watercooled a-LTW3000 torch with a link across the flowswitch pins, and a dumb S/H cooler switched on seperately. Simple.
Now the Esseti cooler unit has a flowswitch and a socket on the front, and i acquired a plug for the socket... but the flowswitch is broke, So I've just not bothered with it, I'm pretty good at remembering to turn it on.
But then it leads to situations like last night, where my brother was welding around 100 amps for a good few minutes without the cooler switched on. Great Not sure if it's damaged the torch yet, but won't have done much good.
So, I just need a working flow switch, to replace the existing, wire into the socket and plugs, and make a really neat setup for the Lorch's no-flow interlock.
Flow switches seem to be generally quite expensive, though!
These seem cheap:
https://www.enrgtech.co.uk/buy/product/ET14060514/197081
https://www.amazon.co.uk/Gems-Sensors-209876-FS-380-Polypropylene/dp/B005T691LY
Looking at the 0.25 or 0.15 GPM versions which should trigger at 1.1/0.6 lpm, the cooler should be delivering 2lpm+, so in theory it should work?
3/8"NPT should connect in pretty easily, and it has the NO connection (some of these switches are NC which is no good for the Lorch interlock)
Or is there something else in the sub-£75 bracket I should consider?
Another option might be if the torch is cooked, going with an i-LTW3000 torch with Powermaster control (Like I should have done in the first place) but obviously quite a lot more expense! and will interlock with high temp, not lack of flow.