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BOSS Inverter Mig 250 Operating Manual
2.02 Installation of MIG/MAG
l
Connect the work lead to negative (-) socket (positive (+) for special wire).
l
Connect the gun lead to the positive (+) socket (negative (-) for special wire).
l
Position a gas cylinder on the rear tray and lock securely to the power supply cylinder bracket with the
chain provided. If this arrangement is not used then ensure that the gas cylinder is secured to a
building pillar, wall bracket or otherwise securely fixed in an upright position.
l
Fit the gas regulator/ flowmeter to the gas cylinder (choose different gas according to wire: CO
2
,
mixed gas, argon and so on).
l
One dual groove feed rollers are supplied as standard with the power supply. These can
accommodate 0.8mm and 1.0mm diameter hard wires. Select the roller required with the chosen wire
size marking facing outwards.
l
Fit the electrode wire spool to the wire reel hub.
l
Lift up the wire feeder pressure lever and lift the electrode wire to the entrance of the gun.
l
Lower the pressure lever and with the gun lead reasonably straight, feed the wire through the gun, till
to extend from the hole in the middle of contact tip.
l
Regulate the current, voltage to the value required according to the thickness of work piece (short
circuit transition, dip transition, and spray transition can be produced according to different regulated
current , voltage).
l
Install appropriately, there is no faulty after inspecting, you can start welding.
2.03 Specifications
MODEL
Inverter Mig 250
Input voltage and frequency and phases
220/240V 50/60Hz 1ph
KVA @ max output
10KVA
Max current
250A
Output current range
30~250A
Open circuit voltage
62/68V
Duty cycle at 40
℃
60%
Weight
40Kg
Dimensions
580
×
350
×
410
Table 3
