Miller Electric Shopmate Series manual Arc Control, Example Preset for MIG welding with steel wire

Shopmate™ 300 Specifications (Subject to change without notice.)

	Amperage	Voltage	Max. Open-	Amps Input at Rated Output, 60 Hz							Net
Rated Output	Range	Range	Circuit Voltage	208 V	230 V	460 V	575 V	KVA	KW	Dimensions	Weight
250 A at 30 VDC,	5 – 400 A	10 – 35 V	80 VDC	66	57	29	23	13	11.2	H: 24-1/2 in (622 mm)	177 lb
60% Duty Cycle										including lift eye	(80.3 kg)
										W: 19 in (483 mm)
										D: 25-1/2 in (648 mm)

Note: For input conductor and fuse size information consult the Owner’s Manual.

Certified to both the Canadian and U.S. Standards for welding equipment.

Performance Data	Control Panel
DUTY CYCLE CHART

	500							1
	450
	400							2
	350
AMPS	300
	250
	200
WELDING	150
	100							3
	50	20	30	40	50	60	70	80 90 100
	10

% DUTY CYCLE

4

ON

OFF	L	S
		S MI
	ST	MIG G
	IG
	M
	L
	A
POWER	ARC CONTROL

			5
VOLTAGE	AMPERAGE
			6
	VOLTAGE	REMOTE 10	7
			CBI
		REMOTE 14
	PANEL
			8
	REMOTE 14		9
	VOLTAGE CONTROL	REMOTE

1.Ammeter

2.Voltmeter

3.Power Switch

4.Arc Control

5.Voltage Adjustment Control

6.Remote 10 Receptacle

7.Supplementary Protector CBI

8.Remote 14 Receptacle

9.Voltage Control Switch

Arc Control

STL

MIG

L

A

SS

MIG

MI G

Example: Preset for MIG welding with steel wire

Control adjusts inductance for MIG welding. Set Arc Control to desired wire type. Inductance determines the “wetness” of the weld puddle. As setting is increased (rotating Arc Control clockwise), wetness (puddle fluidity) increases. For best results, preset Arc Control to the wire type. Then either increase or decrease setting within wire type scale to make fine adjustment to the welding arc.

Arc Control	Arc Control
(Counter Clockwise)	(Clockwise)
Low Inductance	High Inductance
Weld Bead	Weld Bead

2