12
sticking and helps keep the arc going as arc voltage
falls. This action also boots penetration and can be
used to change the way the arc feels and acts.
5)
Burn Back Control.
Burn back control is used to
control the length of the wire stick
-
out after the
trigger is released. It helps to prevent the welding
wire from sticking in the coalescing weld puddle
after the arc is terminated and saves the user from
having to trim the wire before restarting the arc.
6)
Synergic MIG Mode.
Synergic mode may be en-
gaged to simplify welder setup and adjustment.
This mode will allow the customer to input basic
parameters and the machine will automatically set
the wire feed speed (amps) and voltage based off
of the user input. The unit
’
s programming is easily
overridden and the welder will remember the new
ratio of voltage to wire feed setting during the ac-
tive welding session until the process is changed, or
until the Synergic mode is deselected. The machine
has three synergic modes, one for standard MIG
operation, one for standard Spool gun operation
and one for standard push
-
pull gun operation.
7)
Pre and Post Flow Control.
The adjustable Pre and
Post flow control features are designed to improve
weld quality at the beginning and end of the weld
where porosity from oxidation can be a problem.
This is accomplished by providing adjustable time
controls for both pre flow and post flow of shielding
gas. This control is active for both MIG and TIG.
8)
Slow Run
-
in of Wire.
This feature improves arc
striking quality in MIG modes by helping prevent
arc stuttering (machine gunning) and push
-
off dur-
ing arc initiation by slowing the wire speed until the
arc is established.
Note: This feature does prevent
the user from taking accurate measurements of
wire feed speed manually as the wire will feed
slower until the arc is struck and maintained.
This
is not an adjustable feature and cannot be deac-
tivated.
9)
Spool Gun Modes.
This welder is well equipped to
handle the aluminum welding needs of most cus-
tomers by being spool gun ready. The unit can han-
dle several different Everlast spool gun models, but
the user may want to consider the Everlast SM200N
-
MTS gun which is a 200+ Amp gun with a 24 series
barrel. A spool gun is an economical choice for
light to heavy applications requiring a fast deposi-
tion rate of aluminum on materials
3/16”
or great-
er in thickness. A spool gun is limited to
4”
rolls
(usually holding 1 lb of aluminum and 2 lbs of other
filler metals) so numerous spools may be needed
on larger projects.
Basic Design and Construction.
This multi
-
process
welder features an intuitive control panel and couples
it with digitally controlled IGBT inverter design that
produces a stable arc while conserving energy. Everlast
utilizes quality components from US, European, and
Asian based companies to ensure reliability and parts
commonality. Major control components are of a plug
-
and
-
play design which allows rapid diagnosis and repair
of the welder. Welding parameters can be infinitely and
continuously adjusted throughout the range, offering
instant welding response for maximum control.
Installation.
The basic construction of the PowerMTS
211Si is a fully featured and durable welder. It is con-
sidered ideal for circumstances where maximum porta-
bility is required. Critical components are protected by
coatings to make the welder environmentally resistant
and has a water ingress rating of IP21S, (the standard in
the welding industry to protect from vertically dripping
water). However, some common
-
sense care should be
exercised to make sure that the welder offers the safest
and best performance. Please note the following items
regarding safe and proper operations to ensure best
service and results while welding:
1)
Do not use the welder in damp or wet areas. Per-
spiration and other forms of water in contact with
the body can increase the risk of electrocution.
2)
Do not use the welder in extremely corrosive envi-
ronments. To maintain optimum power transfer,
check main connections, clamps and cables fre-
quently to ensure that components are not corrod-
ed. Excessive dirt, corrosion and oxidation can re-
sult in an unstable arc and excessive heat build
-
up.
If the work clamp becomes corroded or damaged,
be sure to replace it with a heavy
-
duty work clamp
rated for at least 250 amps. If your work clamp
appears to become extremely hot while welding,
and all connections are clean and secure, replace
the work clamp.
3)
Store the welder covered with a moisture and fire
resistant material.
4)
If used on a mobile cart, strap or fix the welder to
the cart so that accidental overturn is not likely.
Duty Cycle/Overcurrent/Under Voltage/Overvoltage
Warnings.
Thanks to a dual cooling fan design, the
PowerMTS 211Si has a duty cycle rating of 40% at 200
Amps while welding in MIG and TIG mode and a rating
of 40% @ 175 Amps while welding in stick mode (while
operating on 240V). The duty cycle rating is the
Section 1
Introduction and Specifications
