Miller Electric Welder-Generator User Manual

Quick
Specs

Weld meters — digital ammeter
and presettable voltmeter allow
monitoring of welding output for
each welder.

Multi-arc welding is here! One
dependable engine and two high­performance arcs allow operators
to work independent of each other.
It’s a one-of-a-kind, go-anywhere
engine drive.

Miller Du-Op

®

Engine-Driven

Welder/Generator

Issued May 2008 • Index No. ED/10.9

Thermal overload protection

prevents machine damage if the
duty cycle is exceeded or airflow
is blocked.

Two 14-pin remote controls can
be used for precise adjustment
of amperage or voltage along
with contactor.

Increase profits with this multi-arc
machine by completing even your
most demanding jobs in half the
time compared to conventional
engine-driven welders. With two
arcs in one engine drive, fewer
machines are required for a job.

Double the amperage output

with a switch that parallels both
outputs to a single side. This
provides a safe and easy way to
run large electrodes, stud weld,
or carbon-arc gouge.

5,500 watts of AC generator
power independent of welding

output. Two 120 V, 20 A GFCI
duplex receptacles. Two 230 V,
20 A duplex receptacles.

Hot Start

™

provides positive stick
electrode starts to make it easy
to start all types of electrodes.

The Power of Blue®.

Welder/generator is warranted by Miller for 3 years, parts and labor.

Engine is warranted by Deutz for 2 years.

Miller Electric Mfg. Co.

An Illinois Tool Works Company
1635 West Spencer Street
Appleton, WI 54914 USA

Web Site

www.MillerWelds.com

International Headquarters

Phone: [phone]
USA FAX: [phone]
Canadian FAX: [phone]
International FAX: [phone]

Heavy Industrial Applications

Pipe Welding
Structural

Processes

Stick (SMAW)
MIG (GMAW)
Flux Cored (FCAW)
DC TIG (GTAW)
Air Carbon Arc (CAC-A)

Single Weld Mode:

3/8 in (9.5 mm) Carbons

Dual Weld Mode:

1/4 in (6.4 mm) Carbons

Output Range

Single Weld Mode: (Right side) CC/DC 30 – 600 A
Dual Weld Mode: (Both sides) CC/DC 15 – 300 A

CV/DC 10 – 32 A

Weld Output Rated at 104°F (40°C)

Single Weld Mode: 550 A at 30 VDC, 40% Duty Cycle
Dual Weld Mode: 275 A at 31 VDC, 40% Duty Cycle

Generator Output Rated at 104°F (40°C)

5,500 Watts Peak — 4,000 Watts Continuous

Weight Net: 2115 lb (959 kg) Ship: 2150 lb (975 kg)

Arc control (DIG) allows the arc
characteristics to be changed for
specific applications and electrodes.
Smooth running 7018 or stiffer,
more penetrating 6010 electrodes.

Welding
Mode

Single

Dual

Weld Output Rated
at 104˚ F (40˚ C)

550 A at 30 VDC,
40% Duty Cycle

275 A at 31 VDC,
40% Duty Cycle

Weld
Output
Range

30 – 600 A

15 – 300 A

10 – 32 V

Weld
Stations
Available

1
(Right side)

1 or 2
(Both sides)

Weld
Output

CC/DC

CC/DC

CV/DC

Max. Open­Circuit
Voltage

85

85

49

*Additional 176 lb (80 kg) when fuel tank is full.

Engine Brand

Deutz, F3L-914

Features

Tier IV: EPA-certified, direct-injected, air­cooled engine. Right-side service access with
service intervals of 500 hours for oil and

filters.

Type

Three-cylinder,
industrial, air­cooled, diesel

Weld
Speed

1800 RPM
Idle: N/A

HP

49.3

Fuel
Capacity

25 gal
(95 L)

Oil
Capacity

9 qt
(8.5 L)

Automatic Engine
Shutdown

High oil
temperature

Low oil pressure

Coolant
Capacity

Air

Engine (Subject to change without notice.)

2

Control Panel

Performance Data

Weight

Without Fuel*

Net: 2005 lb
(909 kg)

Ship: 2032 lb
(922 kg)

Dimensions

H: 47-5/8 in
(1210 mm)

W: 31-1/4 in
(794 mm)

D: 60-1/2 in
(1537 mm)

Generator Output Rated
at 104˚ F (40˚ C)

Peak: 5500 watts
Continuous: 4000 watts,

34/17 A, 120/240 VAC,
while welding

Sound Levels at
Rated Output,
7 m (23 ft)

83 dB (108 Lwa)

Specifications

(Subject to change without notice.)

1. 120 VAC, 20 A GFCI Duplex Receptacle and Circuit Breakers

2. 240 VAC, 20 A Duplex Receptacle and Circuit Breakers

3. Battery Charging Warning Light

4. Engine Hour Meter

5. Engine Start Button

6. Manual Stop Control

7. Ether Starting Aid Switch (Optional)

8. Separate/Parallel Switch

1. Process Selector Switch

2. Arc Force (DIG) Control

3. Hot Start Switch

4. Ammeter

5. Voltmeter

6. Amperage/Voltage Control

7. High Temperature

Shutdown Light

8. Remote Amperage/Voltage

Control Switch

9. Output (Contactor) Switch

10. Negative Weld Output Terminal

11. CC Weld Output Terminal

12. CV Weld Output Terminal

FUEL CONSUMPTIONAUXILIARY POWER

DUTY CYCLE

Front Panel Side Panels

1

1

2

2

3
4

5

6
7

8

3
4
5
6
7

8
9

10

11
12

1000

800

600
500
400

300
250

200

WELD AMPERES

150

100

10 15 20 3025 40 50 60 80 100

SINGLE

100% DUTY CYCLE

DUAL

300

150

250

125

200

100

150

75

AC VOLTS

100

50

50

25

0

0

0 5 10 15 20 25 30

0102030405060

AC AMPERES IN 240V MODE

AC AMPERES IN 120V MODE

1.70

7.57

1.46

6.62

1.25

5.67

1.04

4.73

0.83

3.78

0.62

2.84

0.40

1.98

0.21

0.95

LITERS/HR.

2.00

1.75

1.50

1.25

1.00

0.75

0.50

0.25

0

0 50 100 150 200 250 300 350 400 450 500 550 600

DC WELD AMPERES AT 40% DUTY CYCLE

U.S. GAL./HR.

IMP. GAL./HR.

CC

CV