Controls Their Functions | Lincoln Electric NA-5NF, NA-5SF instruction

B-3

OPERATING INSTRUCTIONS

B-3

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CONTROLS AND

THEIR FUNCTIONS

The operator controls for the NA-5 are illustrated in Figure B.1. Refer to the figure and the following explanations of the controls.

EXPOSED CONTROLS (WITH

LOCKABLE COVER DOWN)

1.CIRCUIT BREAKER. Protects the circuit from severe wire feed motor overloads and short circuits. Press to reset.

2.CONTROL POWER. Turns input control power “On” and “Off.” Also used as an emergency “Off” in case of malfunction.

3.ELECTRODE “HOT” LIGHT. Comes on when the “Start button” is pressed and the electrode circuit becomes electrically hot.

FIGURE B.1 – NA-5 CONTROLS.

11	17	10
16		15
		15
12		13
		13
		7
3
1		6
		6
9	14	4
9		8
2	5	8
2	5
		NA-5

4.INCH UP AND INCH DOWN. Press to inch electrode up or down.

5.MODE SELECTOR SWITCH AND LIGHTS. Used to preset the voltage and wire feed speed for the various modes of operation (Strike, Start, Weld, and Crater).

6.SET-ACTUAL BUTTON . When pressed, will display the actual wire speed and voltage in the wire speed and volts meters. When the button is not pressed, the set wire speed and voltage is displayed.

7.START. Begins welding cycle.

8.STOP. Initiates the stopping cycle at the end of the weld.

9.TRAVEL. Turn to “Off” for no travel, “Hand Travel” for travel without welding, and “Automatic Welding” for welding operations.

10.VOLTS METER. Displays the set or actual voltage for each mode (Strike, Start, Weld, Crater).

11.WIRE SPEED METER. Displays the set or actual wire speed for each mode (Strike, Start, Weld, Crater).

CONTROLS UNDER THE LOCKABLE SECURITY COVER

12.ARC STRIKING CONTROLS. Sets the wire speed until the welding current begins to flow and controls the power source voltage during arc striking.

13.BURNBACK AND ELECTRODE BACKUP TIME. Controls the length of burnback delay time after the stop circuit is energized.

14.WELD CONTROLS. Controls the voltage and wire speed during the welding mode.

15.CRATER CONTROLS (OPTIONAL). Sets the ending current and voltage for an adjustable period of time.

16.START CONTROLS (OPTIONAL). Sets the starting current and voltage for an adjustable period of time.

17.WELD TIME (OPTIONAL). Controls the time of the weld mode.

NA-5S, NA-5N, NA-5SF, NA-5NF specifications

The Lincoln Electric NA-5NF, NA-5SF, NA-5N, and NA-5S are advanced welding helmets that are pivotal in enhancing the safety and efficiency of welders in various applications. These models are designed to provide exceptional protection and visibility, making them indispensable tools in the welding industry.

One of the main features of the NA-5 series is the auto-darkening filter technology. This feature allows the helmet to automatically adjust its shade based on the intensity of the arc. As the welder strikes an arc, the lens darkens instantaneously, shielding the eyes from harmful rays generated during the welding process. This functionality not only ensures safety but also enhances productivity, as welders do not need to manually flip the helmet up and down.

The helmets are equipped with a wide viewing area that allows for better visibility and precision while working. With a large lens, welders can easily monitor their work and surrounding environment, minimizing the risk of accidents. Additionally, the lightweight design of the NA-5NF, NA-5SF, NA-5N, and NA-5S provides comfort during extended periods of use, reducing neck strain and fatigue.

The NA-5 series is also well-regarded for its durability. Constructed from impact-resistant materials, these helmets can withstand the rigors of demanding work environments. This durability extends the lifespan of the helmet, making it a cost-effective investment for both professional and hobbyist welders.

Another notable characteristic is the adjustable sensitivity and delay settings found in certain models. These settings allow the user to customize the helmet based on their specific welding conditions. For instance, a welder can increase sensitivity for low-amperage tasks or adjust the delay to allow for a smoother transition from dark to light after completing a weld.

Furthermore, the helmets come with a reliable battery life, ensuring that they can be used for long periods without interruption. Some models also feature solar assist functionality, which helps recharge the auto-darkening filter, enhancing their overall efficiency.

In summary, the Lincoln Electric NA-5NF, NA-5SF, NA-5N, and NA-5S welding helmets represent a significant advancement in personal protective equipment for welders. Their combination of auto-darkening technology, wide viewing area, lightweight design, durability, and customizable settings makes them an excellent choice for anyone engaged in welding tasks. With these helmets, users can achieve greater safety and efficiency in their work, enabling them to focus on their craft with peace of mind.

Lincoln Electric NA-5N, NA-5S Controls Their Functions, Exposed Controls with Lockable Cover Down

Models: NA-5S NA-5N NA-5SF NA-5NF