5. Keep changing the lens until you find a view with the correct
viewing angle/detail required.
6. In some instances you may have to use a wider angle then the
actual lens you will use, for example to show a 5mm view it will
be necessary to assume the picture will be narrower than a 4mm
view but wider than a 6mm view. (A table of angles available with
Xvision cameras is shown on the front of the monitor)
Note: The camera fitted in the Test Monitor has a 1/3" sensor, so the
angles of view shown are correct for 1/3" cameras, to simulate the
view a 1/4" sensor camera would provide, a 1/4" view box has been
printed on the LCD unit, so the monitor is marked with box to show
the view.
Positioning and basic focusing of cameras during an
installation
Once you have sited your camera, connect it to the Test monitor, this
will allow you to, test the camera, position it and focus it (please note
small LCD screens are not designed for providing optimum focus of
Analogue CCTV cameras, please recheck the focus of your cameras
using a larger or CRT monitor)
1. Connect your camera to the
V IN
terminal, on top of the unit,
using the BNC connection lead.
2. Move the switch on the front of the unit to the
V IN
position.
3. You will then be able to view the image from your camera on the
screen and make any adjustments that may be required.
Using the Test Monitor as a loopthrough device
The Test Monitor can be used as a loopthrough device, allowing
images from a camera to be displayed on both the test monitor and
an external device.
1. Connect the camera to the
V IN
terminal
(Operation continued overleaf)
16mm lens
12mm lens
8mm lens
6mm lens
4mm lens
4
5
Applications
• Allows you to demonstrate the different views available with different
lenses during site surveys
• Allows cameras and control equipment to be tested by using the Video
input and built in monitor
• Allows one person to position a camera during commisioning
• Allows control equipment to be tested using the built in video output
• The built in camera has a 0.5 lux CCD sensor,
this shows the image a 0.5 lux camera would
provide, making it easy to decide if lower lux
cameras or additional lighting is required
• Test functionality of existing cameras retrospectively
Choosing the best location & lens angle for cameras
Use the Site Survey feature for planning/demonstrating the location
and viewing angle of cameras during a site survey.
1. Find a likely site for your camera.
2. Move the switch on the front of the unit to the
V OUT
position
(LED indicator turns Red).
3. The screen will display the view that you would get from that
position.
4. Rotate the lens selection wheel to see the effect that a different
lens size will make for your chosen position. There are 5 different
lenses to choose from: 4,6,8,12 or 16mm.
Operation