Note On Harmless Discharges - WAGNER PEM-C4-Ergo Original Operating Manual

PEM-C4-Ergo.
VERSION 02/2009 ORDER NUMBER DOC2305054
OPERATING MANUAL
2.5

NOTE ON HARMLESS DISCHARGES

Nozzle
Electrode
Luminous discharge
Workpiece
P_01091
With the high-voltage switched on, a luminous or corona discharge occurs at the electrode
tip; this can only be seen in the dark. This physical effect can be seen when the electrode
is near the grounded workpiece. This luminous discharge does not involve any ignition
energy and has no effect on the usage of the plant. When the electrode approaches the
workpiece, the control unit automatically reduces the high-voltage to a safe value. If you
touch plastic parts of the spray gun with the fi nger, harmless discharges may occur due to
the high-voltage fi eld around the spray gun (so-called brush discharges). However, these
do not contain any ignition energy.
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