Quick Start Guide - Welding; Tig Welding; Mma Welding - Rohr HP-160L Operación Manual

HP-160L / HP-200PP / HP-250PP

Quick Start Guide - Welding

Be sure to use the correct safety equipment.
Keep loose clothing/hair free from the work area.
You must wear a welding mask to avoid permanent damage to your eyes.
Do not allow bystanders to look at the welding area without the use of a welding
mask.
During welding do not tamper with any plugs or cables, doing so may be lifethreatening
and may severely damage the machine.

TIG Welding

Tungsten Inert Gas welding uses a gas supply to create an oxygen free shroud around the weld
area. A filler rod, inserted into a tungsten tip, is used to create the weld join.
1. Attach the earth clamp to a conductive connected part of the weld surface.
2. Plug in the unit to the mains power supply (must be single phase) and then switch on the unit.
3. Set the switch to TIG and set the required amperes, based on the thickness of the metal to be welded,
using the dial on the front panel. For HP-200PP and HP-250PP models, choose the correct pulse
function with the switch.
4. Turn on the gas supply.
5. Press the trigger on the torch for several seconds until all air is drained from the system.
6. Hold tungsten electrode 2-4 mm from the work piece, press the trigger and strike an arc, the sound of
arc-striking will diminish and you can now weld.
7. When welding is complete, argon will continue to flow for several seconds. The torch should be kept
safe until the arc is extinguished.

MMA Welding

Manual Metal Arc welding uses an electrode stick to create a contact between the material to be
welded. This is held in place with the stick clamp.
1. Attach the earth clamp to a conductive connected part of the weld surface.
2. Plug in the unit to the mains power supply (must be single phase) and then switch on the unit.
3. Set the switch to MMA and set the required amperes using the dial on the front panel.
4. You are now ready to start welding.
© ROHR
English
5