High Frequency Control (Prior To Serial No Lc344556); Sequence Controls (Optional) - Miller Syncrowave 250 DX Technical Manual

4-16. High Frequency Control (Prior To Serial No LC344556)

Y Do not use high frequency while Shielded Metal Arc Weld-
ing (SMAW).
1 High Frequency Control
For GTAW, use control to set HF intensity. Set as low as possible.
Application:
If HF is present at the tungsten, the control is set high enough.

4-17. Sequence Controls (Optional)

1
2
1
2
TM-359 Page 48
1
(CE Nameplate)
NOTE: Arc rectification can occur when welding above 200 amps
and/or while welding with helium gas. If this condition occurs, in-
creasing the HF Intensity control towards maximum, may help to re-
stabilize the arc.
.
As high frequency intensity is increased, the possibility of inter-
fering with local electronic devices, especially communication
equipment, also increases. Set control as low as possible to
avoid such interference.
5
3
4
5
3
4
Ref. 801 972
1 Initial Time Control
See Section 4-18.
2 Initial Amperage Control
See Section 4-18.
3 Final Slope Control
See Section 4-19.
4 Final Amperage Control
See Section 4-19.
5 Spot Time Control
See Section 4-20.
Ref. 196 616 / Ref. 196 764
Syncrowave 250 DX