-- 42 --
bt10d12e
5.3
MMA welding with AC or DC
1. Check that the electrode and return cable are properly connected.
2. Check that the correct electrode is being used for the current type.
3. Set the polarity switch SA4 to the ”correct” setting to suit the type of electrode
that is being used.
4. Set the power switch Q01 to setting ”1” and make sure the flow of cooling air is
not obstructed.
5. Select local or remote current control using switch SA1.
6. Set the chosen welding current using potentiometer (RP01).
7. The power source is now ready for welding.
6
MAINTENANCE
DTB 250 requires very little maintenance. Normally all that is required is to blow the
power source clean with dry compressed air at reduced pressure once a year. If the
power source is used in dusty or dirty premises it should be cleaned more often.
7
ORDERING OF SPARE PARTS
When ordering spare parts please state the machine model, designation, serial
number and the name and number of the spare part as shown in the list of spare
parts.
This will simplify dispatch and ensure correct delivery.
GB