Miller Electric OM-229 038D manual Volt-Ampere Curves, Installing Gas Supply, Model

3-3. Volt-Ampere Curves

The volt-ampere curves show the normal minimum and maximum voltage and amperage output capabilities of the welding power source. Curves of other settings fall between the curves shown.

Model 221 Model 253

MAX

MIN

3-4. Installing Gas Supply

1

Argon Gas

Chain gas cylinder to running gear, wall, or other stationary support so cylinder cannot fall and break off valve.

1 Regulator/Flow Gauge

Install so face is vertical.

2Gas Hose Connection

3Flow Adjust

Typical flow rate is 0.9 liters per minute. Check wire manufactur- er’s recommended flow rate. This flow gauge can be adjusted be- tween 2.36 and 11.8 liters per min- ute.

OR

2 3

CO2 Gas

Ref. ST-148 265-B / Ref. ST-149 827-B / Ref. ST-158 697-A

OM-229 038 Page 9