English 7 English
Introduction
General description
The system consists of a modern direct current generator
for the welding of metals, developed via application of the
inverter. This special technology allows for the
construction of compact light weight generators with high
performance. l’ts adjust ability, effeciency and energy
consumption make it an excellent work tool suitable for
coated electrode and GTAW (TIG) welding.
In addition to these characteristics this model has the
VRD function. VRD stands for: “Voltage Reduction
Device”. The VRD is a risk reduction device for the
welding unit that considerably reduces the risk of an
electric shock from the secondary welding circuit. The
VRD cuts off the power supply for welding and supplies.
The welding machines INVERTEC®161S enables
welding:
SMAW (MMA)
GTAW (arc ignition using lift TIG)
Recommended equipment, which can be bought by user,
was mentioned in the "Accessories" chapter.
Installation and Operator Instructions
Read this entire section before installation or operation of
the machine.
Location and Environment
This machine will operate in harsh environments.
However, it is important that simple preventative
measures are followed to assure long life and reliable
operation.
Do not place or operate this machine on a surface with
an incline greater than 15° from horizontal.
Do not use this machine for pipe thawing.
This machine must be located where there is free
circulation of clean air without restrictions for air
movement to and from the air vents. Do not cover the
machine with paper, cloth or rags when switched on.
Dirt and dust that can be drawn into the machine
should be kept to a minimum.
This machine has a protection rating of IP23. Keep it
dry when possible and do not place it on wet ground
or in puddles.
Locate the machine away from radio controlled
machinery. Normal operation may adversely affect
the operation of nearby radio controlled machinery,
which may result in injury or equipment damage.
Read the section on electromagnetic compatibility in
this manual.
Do not operate in areas with an ambient temperature
greater than 40°C.
Duty cycle and Overheating
The duty cycle of a welding machine is the percentage of
time in a 10 minute cycle at which the welder can operate
the machine at rated welding current.
Example: 60% duty cycle
Welding for 6 minutes. Break for 4 minutes.
Excessive extension of the duty cycle will cause the
thermal protection circuit to activate.
Minutes or decrease
duty cycle
Input Supply Connection
WARNING
Only a qualified electrician can connect the welding
machine to the supply network. Installation the outlet plug
to power lead and connecting the welding machine had to
be made in accordance with the appropriate National
Electrical Code and local regulations.
WARNING
Before inserting the mains plug, in order to avoid the fail of
power source, check if the mains corresponds to the
wished main supply.
Check the input voltage, phases, and frequency supplied
to this machine before turning it on. Verify the connection
of grounding wires from the machine to the input power
source. Be sure that INVERTE®C 161S is grounded.
Input voltage is 230V 50Hz. For more information about
input supply please refer to the technical specification
section of this manual and to the rating plate of the
machine.
Make sure that the amount of mains power available from
the input supply is adequate for normal operation of the
machine. The type of protection and cable sizes are
indicated in the technical specification section of this
manual.
The machine can be connected to a motor generator of
power meeting the dataplate specifications and having the
following characteristics:
Output voltage between 185 and 275 Vac.
Frequency between 50 and 60 Hz.
