mig welding gas question

my one gauge for my mig welder got screwed up and was wondering if someone could tell me if this is right. and if not tell me what the right settings should be.
the gauge has two legends. the red which is LPM and black which is CFH. when the gas is on the CFH is at 29 and when welding it's at 24. the LPM is at 14 when on and 11 when welding. the welder is a miller 115 volt. argon gas mixture. welding all thickness of steel.

thx for the help. i know its a little off topic

len

 

The gage is a flow regulator.
CFH= Cubic feet per hour
LPM= Litres per minute
You set the flow rate while the gas is flowing.
The reading while not flowing is meaningless.
The settings that you have seem to be to high.
My Argon setup operates at around 5 LPM, which gives adequate coverage.
Your setup may be different and you should check to see what they recommend for yours.

 

hmmmm interesting..thank you

 

20 -25 CFH is what they tell you is normal.

 

Pressure setting depends on how much air movement you have in your work space. If you have very little air moverment you can get away with a setting as low as 5-10. Sometimes I have to weld outside and I turn up the pressure to 25-30. The higher pressure will consume slightly more gas, but will give a much cleaner weld with a slight breeze. If its down right windy out, you have to find a way to block the wind from the weld. The gas is to protect the weld until the bead cools, if the weld gas is blown away before the puddle cools you get weld porisity and a ****py weld that needs to be ground out and redone.
Gene

 

If you flow 25cfh then it's going to consume gas 5 times more rapidly than if you flow 5cfh. I've never had to use more than 10 in the garage, but we'd crank them up to 80 at work...of course we didn't have to pay for it.