Lincoln Electric IM944 POWERTORCH PLASMA 20 - Manual (Page 11)

CONTROLS AND SETTINGS
1. ON/OFF Switch – I n the ON position the machine
is ready for normal operation. All system control
circuits are activated. OFF position deactivates
control circuits.
2. Output Current Knob-Adjusts the cutting current
supplied by the machine according to the thick-
ness of material/speed.
3. Green LED – Turns ON when input voltage is
applied within normal range – blinks slowly when
input voltage goes above 130Vac, or below
95Vac.
4. Red LED – Turns ON when torch is triggered
Blinks quickly during 3 second safety pre-flow
prior to pilot arc ignition Blinks slowly if cutting arc
is not initiated after 3 second pilot arc ignition.
5. Yellow LED – Turns ON when the thermal protec-
tion is activated. Blinks slowly when the under
pressure protection is working (the pressure is
under 55 PSI, 3.8 Bar)
6. Air Regulator – Adjusts the input air pressure –
pull upward to unlock, press down to lock – nomi-
nal air pressure setting is 65 PSI, 4.5 Bar.
Note: Regulator should never be set above 87 PSI (6
Bar).
7. Compressed Air Connection
8. Input Cord
9. Work cable with clamp
10. Torch
2
4 5
3
9
10
1
6
7
8
B-2 OPERATION B-2
USER RESPONSIBILITY
Variation such as plate chemistry, plate surface condi-
tion (oil, scale), plate thickness, preheat, quench,
gas type, gas flow rate and equipment may produce
results different than those expected. Some adjust-
ments to procedures may be necessary to compen-
sate for unique individual conditions. Test all proce-
dures duplicating actual field conditions.
DESIGN FEATURES AND
ADVANTAGES
• Light weight
• Continuous output control
• Indicator LEDs
• Cooling fan
• Rapid arc restrike for cutting across gaps
• 3 second arc delay for safety
• Adjustable air pressure regulator with locking feature
• Part-in-place verification for safety and proper operation
• Thermostatic protection with thermal indication
• Air inlet filter with water purge button to protect air
path and torch
• Lighted ON/OFF switch
• High input voltage protection
CUTTING CAPABILITY
The POWERTORCH™ PLASMA 20 is rated for 20A
@ 40% duty cycle. The unit is designed to cut up to
3/8” inch mild steel, but has the capability to cut other
metals such as stainless and aluminum (travel speed
will vary).
TORCH CONSUMABLES
The torch consumables consist of an Electrode, Gas
Distributor Ring, Nozzle, and Shield Cup. The con-
sumable parts must be placed in the correct order and
secured properly for the unit to operate.
LIMITATIONS
For indoor use only.
Do not exceed output current and duty cycle rating of
machine. Do not use the POWERTORCH™ PLASMA
20 for pipe thawing.
POWERTORCH™ PLASMA 20