Everlast POWER i-MIG 253DP Operator's Manual page 21

Section 2
factory programming to be reloaded. Do not
access this function casually! Be aware that
accessing this function without the proper
knowledge and understanding of the adjust-
ment will have potential negative affects on
weld quality and performance.
8. Volt/Function Selector. This control simply is
used to adjust the parameter value that has
been illuminated directly under the digital dis-
play. The default adjustment value will always
Volts. The LED will always be illuminated unless
adjustments are being made to one of the other
parameters. When the select parameter button
(item #10) is used, the value associated with the
selected parameter will illuminate in the graph
(item #11)and will be displayed temporarily in
the display for up to 3 seconds. As long as the
knob is being adjusted, the selected parameter
value will remain in the display until adjustment
is completed. 3 seconds after the unit senses no
adjustment is being made to the selected pa-
rameter, the display will revert back to reading
voltage and the "V" light will be illuminated. If
this happens and you are not finished adjusting
the parameter, you will need to reselect and
highlight the LED associated with the desired
parameter located in the graph and begin ad-
justing within 3 seconds. Additional values oth-
er than Voltage (V) are as follows: Hertz(Hz).
Hertz represents the number of times per second
the pulse cycles. Also referred to as Frequency,
the Hertz function will only be adjustable in Syn-
ergic Double Pulse mode. Seconds (.S). Seconds
adjusts the amount of Time in thousands or
tenths of a second a part of the weld cycle re-
mains active. A period in front or middle of the
number is the decimal point. Burn-Back Time,
Pre-Flow and Post Flow Times are represented in
Seconds and will always be accessible in all MIG
modes. Percent. Parameters that aren't ex-
pressed in time, frequency, or seconds are repre-
sented as a percentage of total adjustable value.
In the case of the Power i-MIG 253DPi, Pulse
Time-On is the only parameter related to this
value and is only accessible in Synergic Double
Pulse mode. Inductance. Though not represent-
ed by an individual LED under the Volt display,
the inductance is a dynamic form of control over
the welding arc. This means that the arc quality,
or feel can be changed to suit the needs of the
operator and welding position. When Inductance
is being adjusted, no LED under the Volt display
Setup Guide and component Identification
will be highlighted. It is only represented by a
"relative" range of inductance control and not a
quantified amount. This function is discussed more
later in the manual. Important Note: In Synergic
Non-Pulse and Synergic Pulse modes, Volts will not
actually be displayed as a standard Voltage value,
even though the "V" is highlighted. An adjustable
range of –5 to +5 will be displayed as the repre-
sented value. This is still a form of control over
voltage, but when in a synergic setting, it is used
to actually "offset" the factory programmed volt-
age value. Some companies represent this as an
"arc length" adjustment, or more commonly,
"trim". While this is really an issue with semantics,
the synergic mode actually keeps you from being
able to adjust the full voltage range in order to
prevent you from getting the welder too far off of
workable parameters. The values of –5 to +5 are
adjustable in tenths. The values do not represent
whole volt changes, but rather a value that is only
relative to the factory programmed voltage. It is
also worth mentioning that the factory setting is
often slightly high when using commonly available
mixes of gas in the US. This does not mean the
setting is not accurate. It does mean that the unit
can accommodate different gas mixes, especially
customized blends for special applications. This is
intentional. Different gases will result in different
offsets. Keep in mind that Volts in MIG welding are
used to control arc length. So. If you turn down
the voltage offset, you will decrease arc length. As
a "best" practice, consider always starting lower in
the adjustment range. Then, raise the Volt offset
value in half number (.5) increments. Once close
to a desirable value, fine tune in one tenth incre-
ments at a time (.1) until best results are achieved.
9. Amp Selector. The amp selector serves only one
basic function. That function is to adjust amps. If
you are looking for a wire speed adjustment on
this welder, this is it. Amps and wire speed are
not separate functions. In the simplest and most
practical terms, these are actually the same func-
tion, but a different way of quantifying and dis-
playing it. Wire feed speed adjusts amp output of
the welder. However, due to the nature of syner-
gic welding and the accuracy of adjustment that
Amps provides over wire speed, this welder uses
Amps. Most welding standards and protocols call
for values in Amps. If you need a wire speed con-
version, we have provided a basic formula for you
and is found later in this manual in the broader
discussion of MIG welding.
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