Vicon SurveyorVFT SVFT-C266A, Руководство по установке и эксплуатации

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DIP Switch Settings
5-50 mm Lens Models
There is a 4-positon DIP switch located on the inside camera board (closest to the lens). It allows for the
of iris, DC or automatic electronic shutter (Switch 1; DC is the ON position/AES is the OFF position);
less (Switch 2; ON/OFF); backlight compensation (Switch 3; ON/OFF) and synchroniza
setting
flicker
tion, line lock or
ternal crystal (Switch 4; L.L. is the OFF position/INT is the ON position). The switch numbers and the ON
of: Switch 1 - ALC (OFF) or ELC
to F
adju
ld be made from a “full bright” setting down to an acceptable video level. This assures that
the ture turned ON or OFF. If day/night is turned ON, at a low light level the camera changes to
onochrome mode and the resolution and sensitivity increase. See Table 3 for camera and lens
On autoiris lenses, iris adjustment may be required if picture appears dark or grainy or has poor color.
There is a potentiometer to adjust the DC level for n the 5-50 mm lens, the small blue pot is located
on the inside camera board (board close mm lens, potentiometer VR1 is on the
amera front board. Refer to Figures 5 ler’s screwdriver to make adjustments.
urning the potentiometer opens and closes the gulate light extremes. Turning the potentiometer
clockwise opens the iris wider, allowing P switch selectable.
in
position are marked. Refer to Figure 5 for DIP switch location and Figure 6 for settings.
2.6-6 mm Lens Models
There is a DIP switch on the front camera board that allows the selection
(ON); Switch 2 – Internal (Crystal) Synchronization (ON) or Line Lock (OFF); Switch 3 – AGC (ON or OFF);
Switch 4 – BLC (ON or OFF). ALC setting is for external autoiris and ELC setting is for internal autoiris. Refer
igures 7 and 8 for the location and setting of the switches. To obtain the sharpest picture possible, the iris
stment shou
the internal AGC of the camera is not operational. The day/night camera includes a switch to select having
day/night fea
m
specifications.
Camera Synchronization
If there is more than one unit in a system, the cameras have to be synchronized to ensure there is no roll of
video. If the camera will be used in a line lock video application, the camera interface board is already set in
line lock mode by default. Camera synchronization is DIP switch selectable, line locked or internal. The use of
line-locking synchronization using a V-phase potentiometer (pot) is typically included in video equipment
requiring external video synchronization. As an example, equipment like a video switcher unit uses the
camera’s line lock to reduce “video jump” on its monitor during camera switching. The V-phase pot allows
video to power line phase adjustment up to 180
°
. If more than 180
°
of adjustment is required, swap the lines
attached to the 24 VAC terminal block connector. Be sure that the selector DIP switch is set to position “LL”.
Note that the performance of the camera’s line lock depends on the quality of the power source. If the camera
experiences roll or jitter due to the quality of the power source, then it is best to set the camera to internal
“crystal” mode. This is done by setting the selector switch to “INT.”
On the 5-50 mm lens models, the adjustment for the line lock V-phase (gray potentiometer) is on the outside
camera board – further from the lens. Refer to Figure 5. On the 2.6-6 mm lens models, the adjustment for the
line lock V-phase (VR1) is on the bottom board of the camera.
Autoiris Adjustments
the
autoiris. O
r to the lens); on the 2.6-6
and 7. Use a small jewe c
T
iris to re
more light. Autoiris control is DI
10
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Installation XX152-01-00 Rev 404 SurveyorVFT Fixed Camera Dome