Left Display Selection; Wfs Knob Range; Amperage Calibration; Display Hold - Lincoln Electric LN-25 Service Manual

B-7

LEFT DISPLAY SELECTION

The left display can show either amperage or actual
WFS during welding. Note that actual WFS is not the
same as preset WFS. For example, the preset WFS
may be set to 400 ipm, but the arc voltage is only 15V.
The actual WFS will be approximately 280 ipm
because there is not enough arc voltage to run at 400
ipm.
To change the left display reading:
Rotate the WFS knob to the left to display amperage
(current).
Rotate the WFS knob to the right to display actual
WFS.
Then rotate the knob to the 12 o'clock position.
Press the set-up button.
d I SP c u r r
A V
O O
O O WFS

WFS KNOB RANGE

For wire feeders equipped with standard torque gear-
ing, the WFS range can be changed to provide better
knob sensitivity at low wire feed speeds. This is often
useful when welding with Innershield™ wires.
To change the WFS knob range:
Rotate the WFS knob to the left for the low wire feed
speed range of 40 – 405 ipm
Rotate the WFS knob to the right for the high wire feed
speed range of 40 – 715 ipm.
S P d I o
A V
O O
O O WFS
Then rotate the knob to the 12 o'clock position.
Press the set-up button.
OPERATION
I SP F E E d
d
A V
O O
O O WFS
P d H I
S
A V
O O
O O WFS
LN-25™ PIPE

AMPERAGE CALIBRATION

Measurements for adjusting the Amperage calibration
must be made before entering the set-up menu.
When first entering Amperage Calibration, the calibra-
tion factor displayed is the value in memory. If the knob
is rotated, the calibration factor changes based upon
the position of the knob.
If no changes are being made to the calibration, then
press the set-up button to enter Display Hold.
While in the set-up menu, adjust the calibration factor
as follows:
Power Source Amperage
= Calibration Factor Example:
Feeder Amperage
Press the set-up button again to enter the Amperage
Calibration.
Rotate the knob to the 12 o'clock position, then press
the set-up button to enter Display Hold.

DISPLAY HOLD

After welding, the LN-25™ PIPE will hold the last val-
ues from welding on the display. The values will con-
tinue to be displayed until the hold period is finished,
the trigger is pulled again, or the cold feed/gas purge
switch is activated.
To change the Display Hold time:
Rotate the WFS knob to the left for 5 seconds Hold.
Rotate the WFS knob to the right for 300 seconds
Hold.
Press the set-up button to exit the set-up menu.
B-7
200
= 1.05
210