CAUTION
!
Figure 11: Jumper Location - Overload Activation
BASIC OPERATION
Triggering
High voltage is actuated by pulling the trigger to start the
flow of atomizing and fan control air through the applicator.
When the applicator is triggered, an air flow switch is ac-
tivated, the kV setpoint is displayed on the kV display, the
actual current draw on the µA display and the high voltage
light illuminates. Under the µA display is a bar graph meter
that illuminates according to the actual current draw.
Figure 12: µA Bar Graph Display
The green and yellow regions of the bar graph meter indi-
cate output current is in the optimum range for maximum
transfer efficiency. The red region of the bar graph indicates
high output current causing decreased transfer efficiency.
The display at the rear of the applicator also doubles as a
microamp bar graph meter when high voltage is on (see
Figure 13). Its function is similar to that of the control unit
bar graph display.
KV TEST JUMPER
To assist in testing and troubleshooting, a jumper (J8) has
been added to the main PC board. By covering (shorting)
both terminals of this jumper, the high voltage to the spray
applicator can be activated. Thus, for testing and trou-
bleshooting, high voltage output can be obtained without
the need to trigger air through the spray applicator. After
testing, the jumper must be repositioned so that it covers
only one terminal (open) or the high voltage will stay on
all the time. (See Figure 8 for location of test jumper J8.)
If jumper J8 is left covering (shorting) both termi-
nals, high voltage will be on whenever AC power is
turned on.
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OPERATION
EN