Miller Electric 1250, 1000 manual Installation, Specifications, Duty Cycle And Overheating

Page 16

SECTION 4 − INSTALLATION

4-1.

Specifications

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Amperes Input at Rated

Amperes Input at Rated

 

 

Model

Rated Welding

Amperage/Voltage

Max

Load Output,

Load Output,

 

 

60 Hz, Three-Phase

50 Hz, Three-Phase

 

 

Output

Range DC

OCV−DC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

230 V

460 V

575 V

380 V

400 V

440 V

KVA

KW

 

 

 

 

 

 

 

 

 

 

 

 

 

1000 A @ 44

100 − 1250 A In CC

 

180

90

72

 

 

 

73

53

1000

Mode

 

 

 

 

Volts DC, 100%

 

66 VDC

5.8*

2.9*

2.4*

 

 

 

3.2*

0.5*

Amp

10 − 60 V In CV

 

 

 

Duty Cycle

 

 

 

 

 

 

 

 

 

 

 

Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

900 A @ 44

100 − 1250 A In CC

 

 

 

 

101

96

87

66.3

48.4

1250

Mode

 

 

 

 

Volts DC, 100%

 

66 VDC

 

 

 

5.2*

5.0*

4.5*

3.4*

0.56*

Amp

10 − 60 V In CV

 

 

 

Duty Cycle

 

 

 

 

 

 

 

 

 

 

 

Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*While idling

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4-2. Duty Cycle And Overheating

 

 

 

 

 

 

 

 

 

 

2000

 

 

 

 

 

 

 

Duty Cycle is percentage of 10 min-

 

 

 

 

 

 

 

 

utes that unit can weld at rated load

 

1800

 

 

 

 

 

 

 

 

1600

 

 

 

 

 

 

 

without overheating.

 

 

 

1400

 

 

 

 

 

DIMENSION 1000

If unit overheats, thermostat(s)

 

1200

 

 

 

 

 

opens, output stops, and cooling

 

 

 

 

 

 

 

 

 

1000

 

 

 

DIMENSION 1250

 

 

fan runs. Wait fifteen minutes for

WELD

 

 

 

 

 

 

 

unit to cool. Reduce amperage or

 

 

 

 

 

 

 

 

800

 

 

 

 

 

 

 

duty cycle before welding.

 

 

 

 

 

 

 

 

 

 

 

700

 

 

 

 

 

 

 

Y Exceeding duty

cycle

can

AMPERES

 

 

 

 

 

 

 

damage

unit

and

void

 

 

 

 

 

 

 

 

warranty.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

600

 

 

 

 

 

 

 

 

 

 

 

 

500

 

 

 

 

 

 

 

 

 

 

 

 

10

20

30

40

50

60

70

80 90 100

 

 

 

 

 

 

% DUTY CYCLE

 

 

 

 

 

 

 

 

 

 

100% Duty Cycle

 

 

 

 

 

 

 

 

 

 

 

Continuous Welding

 

 

 

 

 

 

 

 

Overheating

 

 

0

 

 

 

 

 

A/V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OR

 

 

 

 

 

 

 

Minutes

 

 

Reduce Duty Cycle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

duty1 4/95 / SA-191 157-A

OM-2223 Page 12

 

 

 

 

 

 

 

 

 

 

 

 

Image 16
Contents Processes OM-2223Description From Miller to You Table of Contents Directives StandardsSymbol Usage Marks a special safety messageArc Welding Hazards Electric Shock can killARC Rays can burn eyes and skin Welding can cause fire or explosionFlying Metal can injure eyes Buildup of GAS can injure or killCalifornia Proposition 65 Warnings EMF Information Principal Safety StandardsAbout Pacemakers Identifie un message de sécurité particulier − Consignes DE Sécurité − À Lire Avant UtilisationLE Soudage peut causer un incen- die ou une explosion LES Particules Projetées peu- vent blesser les yeuxLES Pièces Chaudes peuvent cau- ser des brûlures graves LE Bruit peut affecter l’ouïeRisque D’INCENDIE OU D’EXPLO LA Chute DE L’APPAREIL peut blesser’EMPLOI Excessif peut Faire LES Pièces Mobiles peuvent cau- ser des blessuresInformation sur les champs électromagnétiques Principales normes de sécuritéConsignes relatives aux stimulateurs cardiaques General Precautionary Label − DefinitionsNameplate Safety Symbols Input Connection LabelElectric Shock And Airflow Label ? aSymbol Definitions Manufacturer’s Rating Label For CE ProductsI1max I1effSpecifications − InstallationDuty Cycle And Overheating CC Mode CV Mode Volt-Ampere CurvesSelecting a Location Movement Location And AirflowDimensions Dimensions And WeightsWeight Be careful when placing or moving unit over uneven surfaces Turn Off power before connecting to receptacleTipping VAC Receptacle And Circuit BreakersWeld Output Terminals And Selecting Cable Sizes Remote 14 Receptacle And Terminal Strip 1T InformationElectrical Service Guide Connecting Remote ControlAmpere Rated Welding Output Placing Jumper Links 50 Hz Input VoltageWelding Power Source Input Power Connections Connecting Input PowerDisconnect Device Input Power Con- nections Work like a Pro − Operation Dimension 1000 Nameplate Dimension 1250 NameplateControls Amperage/Voltage Adjustment Control − Maintenance & Troubleshooting Routine MaintenanceDisconnect power before maintaining Fuse F1Troubleshooting Trouble Remedy− Electrical Diagrams Circuit Diagram for 60 HZ ModelCircuit Diagram for 50 HZ Model Hz Models Only Main Assembly PLG14Panel, Front w/Components -1Item PC1 207 Rectifier, SCR Main -1Item Panel, Rear w/Components -1Item Page Service SupportOwner’s Record Miller Electric Mfg. Co

1250, 1000 specifications

Miller Electric is a renowned name in the welding and fabrication industry, providing high-quality machines and equipment that cater to a range of applications. Among its impressive line of products are the Miller Electric 1000 and 1250 arc welding machines, designed to offer exceptional performance in both industrial and commercial environments.

One of the main features of the Miller Electric 1000 model is its robust construction, making it ideal for heavy-duty welding tasks. It boasts a powerful output that provides a significant range of welding power, accommodating various electrode sizes and types. This flexibility allows for effective use in a variety of welding processes, including Stick, TIG, and MIG, ensuring that users can tackle a wide array of jobs without needing multiple machines.

The Miller Electric 1250 takes things a step further, delivering even more power and efficiency. With advanced inverter technology, the 1250 offers increased duty cycles and improved energy efficiency, which can lead to cost savings over time. The inverter design also allows for a lighter weight compared to traditional transformer-based machines, enhancing portability and ease of use on job sites.

Both models are equipped with intuitive digital controls and advanced monitoring systems, allowing users to make precise adjustments easily. Features like the Auto-Set functionality simplify the setup process, enabling welders to select materials and thicknesses, and the machine automatically adjusts parameters for optimal results. This is especially beneficial for those who may not have extensive experience, providing a level of confidence in achieving high-quality welds.

Another important characteristic of both the 1000 and 1250 is their adaptability to different environments. They are designed to withstand challenging conditions, including extreme temperatures and dust, making them suitable for outdoor applications and remote job sites. Additionally, Miller Electric prioritizes user safety and comfort, incorporating features like integrated thermal overload protection and ergonomic designs that reduce operator fatigue during prolonged use.

In summary, the Miller Electric 1000 and 1250 arc welding machines represent the pinnacle of modern welding technology. With their powerful output, advanced features, and durable construction, they are well-suited for a range of industrial applications. Whether for routine maintenance or heavy fabrication tasks, these machines deliver reliability and precision, essential for any professional welder.