Volt-Ampere Curves; Installing Gas Supply - Miller Migmatic 171 Owner's Manual

2-3. Volt-Ampere Curves

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30
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2-4. Installing Gas Supply

OM-208 781 Page 6
Model 171
100 150
1
OR
2 3
200
Argon
CO
2
Ref. ST-148 265-B / Ref. ST-149 827-B / Ref. ST-158 697-A
1 Normal Volt-Amperage Curves
The volt-ampere curves show the nor-
mal minimum and maximum voltage
and amperage output capabilities of
the welding power source. Curves of
other settings fall between the curves
shown.
2 Overload Volt-Ampere Curves
When unit is beyond capacity, circuitry
senses the overload and shuts down
unit output. Release trigger and lower
weld voltage setting before trying to
weld. This shut down circuitry protects
internal circuits and parts from over-
load damage.
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.
2 Gas Hose Connection
3 Flow Adjust
Typical flow rate si 20 cfh (cubic
feet per hour). Check
manufacturer's recommended
flow rate. This flow gauge can be
adjusted between 5 and 25 cfh.
wire