Eneo DC Series Installation Instructions Manual page 9

III Adjustment of the AI lenses,
Signal level
The camera signal level can be adjusted
from 0.5 to 1.2 Vpp using potentiometer
„Level" . An oscilloscope and a well-lit
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test pattern (min. 3.000 lux) are used for
this purpose. If these test aids are not
available, an approximate adjustment has
to be tried according to the subjective
picture impression: turn control
left if the picture is too bright and to the
right if the contrast is too low.
IV Adjustment of the DC control lens
Cameras using the same connector for DC
and video controlled iris provide a DC/
VIDEO switch.The switch should be set to
„DC" if a convertible camera is being used.
AUTOIRIS
DC
to the
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VIDEO
Average and peak value control
If the picture still is not satisfactory, despite
correct level adjustment, large differences
in scene brightness levels could be the
reason. This can be corrected with the
Pk/Av potentiometer . When leaving the
factory the lenses are set at an average
control level. Continuous adjustment up to
100% peak control value is possible by
turning the control to the left to provide
better recognition of picture areas which
are too bright.
White level (peak value)
Average picture
level (APL)
0.5 - 1.2 Vpp
Black level
Synchronizing level
Camera specifications should be observed
for lens balancing.
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