Lincoln Electric RED-D-ARC LN-25 PRO EXTREME Operator's Manual page 19

B-4
WIRE FEED SPEED UNITS
Rotate the WFS knob to
the left to use "inch-
es/minute" for the wire
feed speed units.
Rotate the WFS knob to
the right to use
"meters/minute" for the
wire feed speed units.
Press the set-up button again.
WFS CALIBRATION WITH DIGITAL
METERS
To calibrate the wire feed speed, before entering the
set-up menu:
Set the display to the desired wire feed speed (exam-
ple: 400 inches per minute)
Measure the actual wire feed speed (example: 405
inches per minute)
While in the set-up menu, adjust the calibration factor
as follows:
Actual WFS
=Calibration Factor Example
Set WFS
Press the set-up button to exit the set-up menu.
OPERATION
US
A
O O
O O WFS
E U o r
A
O O
O O WFS
405
=1.01
400
RED-D-ARC LN-25™ PRO EXTREME
3. WIRE FEED SPEED KNOB
The large, calibrated wire feed speed knob makes
for easy and accurate adjustment of the wire feed
speed. The knob rotates 3/4 turn. Turn the knob
clockwise to increase the wire feed speed, and
counter clockwise to reduce the wire feed speed.
The digital displays show the wire feed speed on
the display.
Wire Feed Speed, CV Operation
When Across the Arc models are operated with CV
power sources, the wire feed speed will remain a con-
stant value, independent of arc voltage changes, as
along as the arc voltage does not drop below the val-
ues per the following table:
CV Operation
Maximum WFS
280
340
440
520
600
B-4
Minimum Arc Volts
15 V
17 V
21 V
24 V
27 V