Miller Electric Subarc DC 1000, Руководство пользователя

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OM-229 253 Page 15
4-4. Volt-Ampere Curves
Volt-ampere curves show mini-
mum and maximum voltage and
amperage output capabilities of
unit. Curves of other settings fall be-
tween curves shown.
va_curve1 − 4/95 − ST-199 986-A / ST-190 973
A. CC Mode
B. CV Mode
AMPERES
VOL
TS
AMPERES
VOL
TS
4-5. Duty Cycle And Overheating
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
If unit overheats, thermostat(s)
opens, output stops, and cooling
fan runs. Wait fifteen minutes for
unit to cool. Reduce amperage or
duty cycle before welding.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
100% Duty Cycle
Overheating
0
15
A/V
OR
Reduce Duty Cycle
Minutes
duty1 4/95 / SA-191 157-B
Continuous Welding