SECTION 4 – OPERATION

4-1. Controls

8

7

6

5

4

3

2

1

Setting Gas/Air Pressure

 

10

 

4

Set To 70 psi

 

(482 kPa)

9

Requires 80-150 psi (552-1034 kPa) Supply

1

Pilot Light

Ready light comes on when Power switch is

Place switch down for pulsed pilot arc

2

Power Switch

placed in On position, indicating that all safe-

output. Use this position whenever possible

ty shutdown systems are okay.

to reduce wear on torch and consumables.

3

Output Control

If Ready light does not come on, check

Place switch up for a continuous pilot arc.

Use control to set cutting output.

Trouble Lights.

Use this position when cutting starts are

For non-shielded cutting, use a 1/8 in (3 mm)

6 Trouble Lights (See Section 5-3)

critical or while cutting expanded metals.

standoff distance between torch tip and

 

 

7 Trigger Hold Switch

Setting Gas/Air Pressure

workpiece.

 

 

 

4

Set/Run Switch

To cut without holding torch trigger, place

9

Air Filter/Regulator

Place switch up to safely adjust gas/air pres-

switch up, and begin cutting by pressing and

10

Pressure Adjustment Knob

releasing torch trigger. To stop cutting, press

sure. Only gas/air circuit is activated.

 

 

and release trigger.

Place Set/Run switch up and turn on gas/air

 

 

Place switch down to cut or gouge.

 

When set in down position, trigger must be

supply. Lift knob and turn to adjust pressure.

5

Ready Light

held closed while cutting.

Push knob down to lock in setting.

Use light to tell if unit is ready for operation.

8 Pilot Arc Control Switch

Place Set/Run switch down to begin cutting.

Ref. ST-159 465-A / ST-800 701 / S-0818

OM-217 Page 20

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Miller Electric Spectrum 1250R, Spectrum 1000 manual Operation, Controls, Setting Gas/Air Pressure
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Spectrum 1000, Spectrum 1250R specifications

Miller Electric has long been a leader in advanced welding technology, and the Spectrum 1250R and Spectrum 1000 are prime examples of their revolutionary products designed for professionals. Both models are plasma cutting systems that offer remarkable performance, durability, and user-friendly features tailored for precision cutting in various applications.

The Spectrum 1250R is known for its robust capabilities, boasting a maximum cutting thickness of up to 1 inch on mild steel. Its powerful 125 amp output ensures rapid cutting while maintaining a clean edge, which is essential for industries requiring precision and efficiency. The integrated Auto-Refire technology minimizes downtime by enabling the torch to continue cutting even through brief interruptions. Users appreciate the system’s portability, thanks to its lightweight design and convenient shoulder strap.

The Spectrum 1000, while slightly less powerful, is no less impressive. It supports a maximum cutting thickness of ¾ of an inch on mild steel, making itideal for medium-scale projects and applications. Its advanced technologies include an Easy Start feature that guarantees quick arc initiation without the need for high-frequency start options. This is particularly beneficial in reducing the risk of damaging sensitive electronics nearby.

Both models incorporate Miller’s Auto-Set technology, which streamlines operations by automatically adjusting the settings to match the material thickness and type. This innovative feature eliminates the guesswork for users, allowing for consistent results and enhancing overall productivity. The systems also utilize a unique drag-cutting capability, enabling users to maintain the torch directly on the workpiece for improved cut quality and control.

Moreover, the durability of the Spectrum series is highlighted by their seal design that protects critical internal components from dust and contaminants, significantly extending the lifespan of the units. Adjustments and maintenance are simplified, thanks to the easy-access design of the consumables.

In terms of safety, both models prioritize user protection, featuring thermal and overload protection to prevent overheating and prolonging the life of the equipment. Whether being utilized in a workshop or an outdoor environment, the Spectrum 1250R and Spectrum 1000 provide reliable, high-quality performance desired by welding professionals. Their combination of cutting-edge technology, ease of use, and robust design makes them invaluable tools in the toolbox of any welder or metalworker.
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