Owner manual

ULTRA-CUT 100 XT
4-4 OPERATION Manual 0-5272
11. Shut off the system.
a. SettheON/OFFpowerswitchonthefrontpaneloftheunittoOFF.
WARNING
AC power is still present inside the unit.
• Fansandpumpaswellasallindicatorsturnoff.
• Thedisplaymayshowafaultcodeforamoment,thisisanormalpartofshuttingoffpoweranddoesnot
indicate a fault.
b. Open(turnoff)themainpowerdisconnect.Allpowerisnowremovedfromtheunit.
• RearpanelACindicatorturnsOFF.
Operational Suggestions
1. WaitfourminutesbeforesettingtheON/OFFswitchtoOFFafteroperation.Thisallowsthecoolingfanstorun
to dissipate operating heat from the power supply.
2. For maximum parts life, do not operate the pilot arc any longer than necessary.
3. Use care in handling torch leads and protect them from damage.
4. Whenusingwaterastheshieldnotethefollowing:
• Usecleandrinkingqualitytapwatertohelppreventparticulatebuild-upwithinthesystemwatershield
plumbing.
• Particulatecontaminationandbuild-upcancausereducedconsumablepartslifeandprematuretorchfailure.
• Acartridgetypeparticulatewaterltermayhelpachieveoptimumcuttingperformance.
4.03 Gas Selection
A. Plasma Gases
1. Air Plasma
• Mostoftenusedonferrousorcarbonbasematerialsforgoodqualityatfastercuttingspeeds.
• Airplasmaisnormallyusedwithairshield.
• Onlyclean,dryairisrecommendedforuseasplasmagas.Anyoilormoistureintheairsupplywill
substantially reduce torch parts life.
• Providessatisfactoryresultsonnonferrousmaterials.
2. Argon/Hydrogen(H35)Plasma
• Recommendedforuseon3/4in(19mm)andthickerstainlesssteel.Recommendedfor1/2inch(12mm)
andthickernonferrousmaterials.Ar/H2isnotnormallyusedforthinnernonferrousmaterialsbecause
lessexpensivegasescanachievesimilarcutquality.
• Poorcutqualityonferrousmaterials.
• Providesfastercuttingspeedsandhighcutqualityonthickermaterialstooffsetthehighercost.
• A65%argon/35%hydrogenmixtureshouldbeused.
3. Oxygen (O2) Plasma
• Oxygenisrecommendedforcuttingferrousmaterials.
• Providesfastercuttingspeeds.
• Providesverysmoothnishesandminimizesnitridebuilduponcutsurface(nitridebuildupcancause
difcultiesinproducinghighqualityweldsifnotremoved).