Miller Electric CST 250 - Manuel (Page 18)

OM-212 817 Page 14
3-7. TIG Lift-Arct DCEN (Direct Current Electrode Negative) Connections
Ref. 802 888 / Ref. 803 080
1 Positive (+) Weld Output
Terminal
Connect work lead to positive weld
output terminal.
2
Negative (−) Weld Output
Terminal
Connect TIG torch to negative weld
output terminal.
3
Gas Cylinder
4 Cylinder Valve
Open valve slightly so gas flow
blows dirt from valve. Close valve.
5
Regulator/Flowmeter
6 Flow Adjust
Typical flow rate is 15 cubic feet per
hour (7.1 liters per minute).
Connect torch gas hose to
regulator/flowmeter.
7
Gas Valve
Valve controls gas preflow and
postflow. Open valve on torch just
before welding.
2
Tools Needed:
1
3
4
11/16 in, 1-1/8 in, (21 mm)
5
7
6