14
EVERLAST
Section 2
Know Your machine
3
2.1 Panel Face. The following is a unit panel
face from an EX series unit. Depending upon
your unit, the panel face may vary with regard
to quantity and location of controls and fea-
tures. Use the appropriate referenced num-
ber to refer to equivalent features on your
unit. Names or designation of control features
may slightly vary. Some numbers are omitted
on each panel because the function does not
apply to that unit.
1. Power lamp. This light illuminates while
the unit is powered on.
2. Over Current/Overheat lamp. This lamp
illuminates when the duty cycle has been ex-
ceeded or the machine has overheated due to
improper ventilation. Discontinue use until
lamp goes out. Allow the fan to continue to
run. Once lamp goes out, you may resume
using the unit. If frequent or continuous over-
heating is encountered, contact Everlast.
3. Digital Display. The display posts the ap-
proximate welding amps.
4. Base Current Control. This is the primary am-
perage control. Base amperage is set with this
knob. If the pulse function is desired, first select
your base (low amperage) with this control to
attain you minimum amperage requirements for
the pulse cycle. The amperage change will be
reflected on the digital display. Since the
Power Ultra has no pulse unit, its sole function
is to set the Tig and cut currents (main amper-
age).
5. Pulse Current. This sets the peak (high)
amperage of the pulse cycle. Select the Peak
amperage with this control to achieve the maxi-
mum amperage requirements for the pulse cy-
cle. The amperage change will be reflected on
the digital display. Turn the pulse off by turning
the pulse current control to lowest setting and
use only the base amps to select main amper-
age without the pulse function.
6. Pulse Frequency. The pulse frequency con-
trols the number of pulse cycles per second
(Hz). By defining the pulse frequency, this di-
rectly sets the duration of each pulse cycle.
This allows for fine control of heat input into the
base metal.
7. Pulse Width. This allows the relative amount
of time that the pulse spends in the base (low)
current stage during a cycle length determined
by the pulse frequency control to be adjusted.
For example: A control knob setting of 90%
or .9 will signal the pulse function of the ma-
chine to spend 90% as long in the base (low)
current stage as spends in the peak (high) cur-
rent stage of the pulse cycle. Note: The Pulse
Width does not control the overall length of the
pulse. The pulse frequency setting sets the cy-
cle length, thereby determining the overall
length of each leg of the cycle. Within each cy-
cle length, there is a certain amount (ratio) of
time that the pulse spends in the base (low) am-
perage stage of the cycle and in the peak (high)
amperage stage of the cycle. As the cycle fre-
quency (Hz) increases, overall cycle length is
shortened, thereby compressing the exact
amount of time that the cycle spends in each
stage. However, the pulse ratio continues to
function within the compressed cycle propor-
tionately.
8. Arc Force. This controls the dig of the arc.
The dig is a term used to describe the intensity
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Images 2.1.1 a, b
Summary of Contents for POWER DIGITAL SERIES
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