Lotos LTP DC2000D User Manual

LOTOS TECHNOLOGY

Plasma Cutter TIG Stick Welder LTPDC2000D

www.uwelding.com

Lotos Technology LTPDC2000D
Quick Setup

Instructions

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.

Figure 1.1

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.)

65 - 70 PSI

Gas

Inlet

Power

Cord

Figure 1.2 Figure 1.3

1

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 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.

5-pin

Switch

Plug

Plasma

Torch

Output

Figure 1.4

Pilot

Arc

Ground

Cable

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.

For TIG Welding:

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.)

2

Output

from

Air

Compressor

Argon

Gas

Machine

Air

Compressor

15-20

min/L

Gas

Inlet

Argon

Regulator

Figure 1.5 Figure 1.6

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.

Figure 1.7

- 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

- S e t T I G Weld/Sck We l d / P l a s m a C u t t o T I G We ld mo de (r e f e r t o F i g u re 1. 4, pa ge 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).

TIG

Torch

Output

5-pin

Switch

Plug

Figure 1.8

3

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 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 amps (Figure 1.9).

Foot

Pedal

with

Amp Adjusts

Tig Torch

Output

Gound

Cable

(Leave the torch switch unplugged.)

Figure 1.9

Figure 1.9

5-pin

Foot Pedal

Plug

3. TIG torch head parts (Figure 1.9) and assembly (Figure 1.10)
(The tungsten is not included in the picture; please buy proper DC Lotos tungsten electrodes.)
Grind and sharpen the tungsten before rst use.

Figure 1.10

Figure 1.11

4

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 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 1.11).

Ground

Stick

Welding

Clamp

Cable

Figure 1.12

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!

LOTOS Plasma Cutters
User Manual

Version: 2.0, June 2014

copyright @ Lotos Technology

www.uwelding.com is operated by Lotos Technology

Table of Contents

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 ...................................................................

Fire or Explosion ..........................................................................

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

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

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

Cylinder Handling .........................................................................

Equipment 9

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

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

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

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

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

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

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

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

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

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

9
9
9
12
12
13
15
16
16
17

6
6

7
7
7
7
7
7
8
8
8
8
8

Instrucon Notes 19

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

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

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

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

19
19
20
20

For more information and more of our products,

please visit our website at

http://www.uwelding.com/