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LOTOS TECHNOLOGY

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Plasma Cutter TIG Stick Welder CT520D

Lotos Technology CT520D

Quick Setup

Power plug wiring:

For either 110 or 220VAC, the GREEN wire is the ground wire. The WHITE and BLACK wires are hot

wires.

For Plasma Cung:

1. Wear a Lotos auto darkening plasma cung helmet

(Figure 1.1, not included in the box. To purchase, please

go to our website.) to protect your eyes from harmful

plasma cung arc radiaon and safety gloves to protect

your hands during welding.

2. Connect the machine gas inlet (on the back of the machine, Figure 1.2) with an air compressor

(Figure 1.3) and set the air pressure to 65-70 PSI. (The Air Regulator is oponal if your air

compressor has the capability to control output air pressure.)

Instructions

Figure 1.1

Figure 1.2 Figure 1.3

65 - 70 PSI

Power

Cord

Gas

Inlet

3. Connect your plasma cung torch and ground cable to the front panel of the machine. Make

sure the ground cable is connected on the right hand side where the “+” sign is located.

(Figure 1.4)

- Set TIG Weld /Sck Weld /Plasma Cut switch to Plasma Cut mode.

- Set “2.5S/5S” to “2.5S” Mode.

- Set “Machine/PEDAL” to “Machine” Mode.

- Adjust Current Dial between 10 and 50 amps.

4. Aach the ground clamp to the metal you want to cut. Grind the metal to make sure the clamp

is securely aached to the work piece. Press the trigger of the torch and make sure the air is

owing. Finally, move the torch head to the work piece and start cung.

5. Change your consumables (p, electrode, ring, and cup) if they are worn out. The consumables’

type is LCON. If you want to cut the perfect circle or perfect straight line, order a Lotos

LCK roller guider compass kits from our website www.uwelding.com.

1. Wear our auto darkening helmet and gloves to protect your eyes and hands from any harmful

welding arc. (Please see step 1 in Plasma Cung.)

2. Connect the machine gas inlet (on the back of the machine, Figure 1.5) to the argon regulator

and adjust the knob to set gas pressure between 15 and 20 min/L (an argon regulator is

necessary, Figure 1.6.)

For TIG Welding:

Figure 1.4

STICK

Welding

Clamp Plasma

Torch

Output

5-pin

Switch

Plug

Ground

Cable

a) If you switch from plasma cung to TIG welding quite oen,

consider buying a LOTOS 3 way valve kit to connect

both the argon tank (Figure 1.7) and the air

compressor simultaneously.

- Connect your TIG torch and ground cable to the front panel of the machine.

- Make sure the ground cable is connected on the right hand side where the “+” sign is located.

- Set TIG Weld/Sck Weld/Plasma Cut switch to TIG Weld mode (refer to Figure 1.4, page 2).

- Set “2.5S/5S” to “2.5S” mode.

- Set “Machine/PEDAL” to “Machine” mode.

- Adjust current dial from 10 to 200 amps (Figure 1.8).

Figure 1.5 Figure 1.6

Figure 1.7

Figure 1.8

Output

from

Air

Compressor

Argon

Regulator

Argon

Gas

Machine

Gas

Inlet

Air

Compressor

15-20

min/L

5-pin

Switch

Plug

TIG

Torch

Output

b) If you want to dynamically control the welding heat, please use a foot pedal (not included in the

box. To purchase, please go to our website). Then connect the “on/o” connector to your foot

pedal and leave the wire of the TIG torch unplugged.

- Set TIG Weld/Sck Weld/Plasma Cut switch to TIG Weld mode (refer to Figure 1.4, page 2).

- Set “2.5S/5S” to “2.5S” mode.

- Set “Machine/PEDAL” to “Pedal” mode.

- Adjust current dial between 10 and 200 Amp (Figure 1.9).

3. TIG torch head parts (Figure 1.10) and assembly (Figure 1.11)

(The tungsten is not included in the picture; please buy proper DC Lotos tungsten electrodes.)

Grind and sharpen the tungsten before rst use.

Figure 1.9

Figure 1.10 Figure 1.11

Foot

Pedal

with

Amp Adjusts

Ground

Cable

5-pin

Foot Pedal

Plug

TIG Torch

Output

Unplugged

For Sck/Arc/MMA Welding:

1. Wear our auto darkening welding helmet and gloves to protect your eyes and hands from any

harmful welding arc. (Please see step 1 in Plasma Cung.)

2. You don’t need to connect the machine to any gas or air supply. It’s a plug and play.

Panel connecon instrucons:

- Set TIG Weld/Sck Weld/Plasma Cut switch to Sck Weld mode (refer to Figure 1.4, page 2).

- Set “2.5S/5S” to “2.5S” mode.

- Set “Machine/PEDAL” to “Machine” mode.

- Adjust current dial between 10 and 200 amps (Figure 1.12).

Last but not least, please be sure to turn o the machine when you switch from one funcon to

another. This is important, because otherwise the machine could be damaged.

All accessories and consumables can be purchased at www.uwelding.com or Lotos’s authorized

resellers.

Thank you for your business!

Figure 1.12

Ground

Cable

Stick

Welding

Clamp

LOTOS Plasma Cutters

User Manual

Version: 2.0, May 2014

www.uwelding.com is operated by Lotos Technology

For more information and more of our products,

please visit our website at

http://www.uwelding.com/

Introducon 6

Overview ................................................................................

Audience................................................................................

Safety Precauons 7

Overview .................................................................................

Cauon Recommendaons .................................................................

Avoiding Fatal Electric Shock ................................................................

Avoiding Harmful Smoke, Gases, and Vapors ..................................................

Avoiding Harmful Arc Emissions/Rays ........................................................

Avoiding Harmful Noises ...................................................................

FireorExplosion..........................................................................

Burn Protecon ...........................................................................

Protecng Eyes from Flying Metal or Dirt .....................................................

Pacemakers..............................................................................

CylinderHandling.........................................................................

Equipment 9

General Overview .........................................................................

Main Characteriscs .......................................................................

Specicaons .............................................................................

Adjustor Diagram .........................................................................

Air Regulator Conguraon ................................................................

Connecng Cables to Machine..............................................................

Installaons ..............................................................................

Instrucon Notes 19

Working Environment .....................................................................

Safety ...................................................................................

Maintenance .............................................................................

Troubleshoong ..........................................................................

Table of Contents

Gas Regulator Installation ..................................................................

Argon Installaon .........................................................................

Operaon ...............................................................................

Introduction

Overview

Dear Valued Customer:

Thank you for purchasing a Lotos Technology plasma cuer! Feel free to check out our other products at

www.uwelding.com.

This User Manual documents policies and procedures for proper operaon of the equipment.

IMPORTANT: Be sure to review the contents of this manual before aempng to operate the equipment.

This manual should be located where it can be easily referenced by all users of the machine.

Audience

This manual assumes that all individuals reading the manual and using the welder/cuer are able,

qualied, and/or cered to operate this type of machinery.

Safety Precautions - Read Before Using

Overview

Cauon Recommendaons

Arc rays from the welding process pro-

duce intense visible and invisible rays

that can burn eyes and skin. Sparks y

o from the weld.

CAUTION: Welding and arc cung

can cause bodily injury.

• Connect the machine to a UL-approved outlet

only. Do not hard wire the machine directly to

the power source.

• Wear safety goggles at all mes. This will dark-

en the arc that is generated by the machine and

protect your eyes from harmful rays.

• All machine operators should be technically

cered for welding/cung.

Avoiding Harmful Smoke, Gases, and Vapors that can injure or kill.

Avoiding Harmful Arc Emissions/Rays that can burn eyes and skin.

Avoiding Fatal Electric Shock

Protect yourself and others from injury — read and follow these precautions.

Welding produces fumes and gases.

Breathing these fumes and gases can

be hazardous to your health.

• Do NOT switch o the machine while machine is

in operaon for internal circuitry can be

damaged.

• Wear appropriate clothing and a welding or

cung mask to protect your eyes and skin.

• Use appropriate screen or curtain to prevent

emissions from reaching individuals near the

work area.

• Ensure that your working area contains no

ammable items; and that none are nearby.

Cauon: Welding and cung spray can ignite.

Avoiding Harmful Noises that can damage hearing.

Noise from some processes can

damage hearing.

• Wear protecve earplugs while operang

machine.

• Isolate yourself from both the

earth and the work piece.

• Make sure that your working area is

nonammable and explosive-free.

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