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4.0 Battery charging
The NFM3 uses a rechargeable 7.2 Volt Lithium-Ion battery which lasts for
approx. 8 to 10 hrs. When the battery level reaches 000%, the unit should
be recharged using the supplied battery charger.
3.0 Dual Nozzle Model
The NFM3 Dual Nozzle Model features an additional argon-only nozzle.
The NFM3 Dual Nozzle Model has a ‘gas lock’ feature. To stop the gas
being accidentally changed, the ‘Up’ / ‘Down’ buttons are disabled.
To enable the buttons, press the ‘Up’ button for 3 seconds. A red arrow
will appear on the display and enables the gas to be changed.
After a few seconds of no further button presses, the arrow will disappear,
and the ‘Up’ / ‘Down’ buttons are locked again.
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