Miller Electric HF-251D-1 manual High Frequency Intensity Control, Power Switch And Pilot Light

4-4. High Frequency Intensity Control

1 High Frequency Intensity

	Control
1	Use control to change amount of
	HF energy used to start and/or
	maintain the arc. Set as low as
	practical to prevent interfering with
	electronic equipment.

4-5. Power Switch And Pilot Light

1 Power Switch

Use switch to turn unit On and Off.

1	2 Pilot Light
	2

4-6. Postflow Timer

Postflow Timer

A fixed 15 second Postflow Timer

t 2controls the period of time shielding gas flows after the arc is extin- guished.

4-7. Shielding Gas

2

1

		1	Shielding Gas Cylinder
		2	Valve
		3	Hand Control
		4	Foot Control
		Open valve on cylinder just before
3	4	welding.
		Control turns weld output and gas
		flow on and off.
OR		Close valve on cylinder when fin-
		ished welding.

sb5.2* 5/94 − S-0621-C / S-0769 / Ref. 159 059

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