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3. TRIGGER CONNECTOR
There is one circular connector for the gun trigger on
the front of the LN-25 PRO. Note – if the gun trigger
is already depressed when the feeder is powered up,
the feeder will not activate. Release and then press
the gun trigger to begin welding.
The 83% wire feed speed reduces the wire feed
speed to 83% of the original set value when activated.
For example, if the original wfs = 200 in/min, the feed-
er will regulate to 0.83 x 200 = 166 in/min.
The 83% trigger requires a gun with a dual procedure
switch.
This feature is often useful when welding pipe, and a
"cooler" procedure is required on the bottom portion.
Function
5-pin trigger
C
B
connector for
E
push-guns
D
A
only.
4. WORK SENSE LEAD
Always turn power off at the welding power source
before moving the work sense lead.
The work sense lead attaches to the item being weld-
ed.
5. SET-uP PuShbuTTON
before entering the set-up menu:
Calibration of Wire Feed Speed:
• Set the display to the desired wire feed speed
(example: 400 inches per minute)
• Measure the actual wire feed speed (example:
405 inches per minute)
• Place the WFS knob in the 12 o'clock position.
To enter the set-up menu, use paper clip to press the
small button located on the case front.
P U S H B U T T O N
OPERATION
Pin
Wiring
A
5 volt supply
B
Not used
C
Trigger
D
83% WFS switch
E
5 volt supply
PUSHBUTTON
RED-D-ARC LN-25™ PRO EXTREME
WIRE FEED SPEED uNITS
To change the wire feed speed units:
Rotate the WFS knob to the left to use "inches/minute"
for the wire feed speed units.
Rotate the WFS knob to the right to use
"meters/minute" for the wire feed speed units.
Then rotate the WFS knob to the 12 o'clock position.
U S
E U r o
US
Press the set-up button again to enter WFS calibration.
WFS CALIbRATION
Measurements for adjusting the WFS calibration must
be made before entering the set-up menu. If no
changes are being made to the calibration, then press
the set-up button to enter WFS Knob Range.
While in the set-up menu, adjust the calibration factor in
the following example:
Actual WFS
= Caibration Factor
Set WFS
Press the set-up button when calibration factor is set.
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EUro
405
= 1.01
Example:
400
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