Ganz ZC-Y20PH Manual de instrucciones - Página 19
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Imprimir página● Flickering-reduction switch
1/120
(1/50)
● Synchronization switch
INT
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11. ILLUMINATION VS. PLACE
The following table shows the approximate illumination so as to facilitate selection of the camera and lens.
(lx)
100,000
10,000
1,000
100
10
Normally, set the switch to this
position.
Set the switch to this position
when a single camera is used
and it does not need to be
synchronized with other camera.
Fair, daytime, sunlight (100,000 lx)
●
Outdoors, fair, in the shade (10,000 lx)
●
Cloudy, one hour after sunrise (2,000 lx)
●
Fair, one hour before sunset (1,000 lx)
●
Near the window of an office illuminated by fluorescent lamps
●
(1,000 lx)
Conference room (500-700 lx)
●
Sales area of department stores (500-700 lx)
●
Room (15 m
●
(300 lx)
Sick room (150-200 lx)
●
Hotel lobby (70-150 lx)
●
Emergency staircase (30-70 lx)
●
Point 30 cm distant from a cigarette lighter (15 lx)
●
Point 20 cm distant from candle light (10-15 lx)
●
1/120
Note
Placing the flickering-reduction switch in the "1/120"
position makes the sensitivity lower than in the
"(1/50)" position. Use the "(1/50)" position when the
flickering does not interfere with the view or when
the camera is used in dark locations.
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2
) illuminated by two 30 W fluorescent lamps
Flickering of the picture may
interfere with the view under
fluorescent lamps in the area
with power frequency of 50 Hz.
(1/50)
In such cases, set the switch to
"1/120" position, and the image
free from flickering can be
obtained.
Set the switch to this position
when locking multiple cameras
to the power frequency.
Note
The line locking system cannot
LL
be used in areas where the
power frequency is 60 Hz.
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