Electrostatic voltage, Target distance, Ransburg – Ransburg MMA-570 Direct_Ind Charge Atomizer A13366 User Manual
Page 46

ELECTROSTATIC VOLTAGE
The MMA-570 Indirect Applicator receives a low
voltage control input from the MicroPak to control
the operating electrostatic voltage. (Refer to the
current MicroPak manual for detailed Operating
Instructions.) Refer to the current MicroPak service
manual for detailed operating instructions, safety
cautions, and settings.
TARGET DISTANCE
The distance between the MMA-570 atomizer
and the target will affect the finish quality and
efficiency. Closer distances give a smaller pat-
tern, wetter finish, and greater efficiency. Greater
distance will provide a large pattern size and drier
finish. The MicroPak control circuit will enable
the applicator bell to be operated to within a few
inches of the target without adjusting the voltage
setting. The recommended target distance is 6
to 12-inches (152.4-304.8mm). In general, allow
1-inch (25.4mm) target distance for every 10kV.
NOTE
If paint defects occur, such as fat-
ty edges or picture framing, reducing
the voltage should be a last resort. To
correct the problem, lead and lag trigger
adjustments should be optimized first.
The electrostatic voltage applied to
the MMA-570 will affect pattern size,
transfer efficiency, wrap and penetration
into cavity areas. A setting of 30-70 kV
is appropriate for most direct charge ap-
plications and 30-70 kV for most indirect
charge applications.
MMA-570 Direct/Indirect Charge - Operation
Ransburg
LN-9279-13
43