ELTEX R120 Series, Руководство по эксплуатации

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BA-en-3030-1912_R120 / R121A
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4. Operation
4.1 Operating voltage
The charging bar is operated with high voltage between 5...15 kV, with
adequate insulation with up to 60 kV. Make sure that the correct distance
between the charging bar and the substrate surface is maintained. With an
operating voltage of 15 kV, the minimum distance should be 10 mm.
The working range is shown in fig. 9.
4.2 Operating modes
The charging bars are usually operated with constant voltage, i.e. the high
voltage generated by the generator is non-adjustable. This operating
mode is recommended for all applications in which the substrate to be
charged has a high intrinsic resistance and where no creepage currents
caused by contamination is expected.
The current must not be allowed to exceed 1 mA per meter of active
charging bar length.
If the charging bar is used in applications where strong contamination
must be expected, the operating mode Current Constant ought to be
selected on the generator. This will prevent energy being drawn off in an
uncontrolled manner through creepage currents and damage to charging
bars and installation material.
The minimum operating current for any stable-current working point must
be >0.5 mA.
Fig. 9:
Working range of
the charging bar
as factor of voltage
and distance
Example:
the active charging bar length
is 515 mm,
maximum rated current:
1 mA/metre x 0.515 metre =
0.515 mA.
Z00
4
78
y
kV
15
10
5
0
5 10 15 20 mm