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User’s manual 42
Secondly, make proper mask to block the light source. To do that, the
target area must be located precisely to cover the target zone.
3
rd
step is to choose an appropriate sensitivity for the function. This is an
important item, and the suggestion is to make test to the sensitivity
setting with various moving objects (particularly the size) in different
moving speeds, to avoid or reduce unnecessary faulty function.
4
th
step is to decide how long the alarm signal should be retained on
screen after an event is detected. Options are 10, 30 and 60 seconds.
The last item is to decide whether warning signal will be displayed on screen
at event. This is set up with the OSD option
17. IR Î On or Off
To remove the IR cut filter and turn on the viewing capability in dark where is
IR illumination is provided
IR cut filer is commonly used in most color cameras in order to gain the
maximum quality of color image. However, the use of IR-cut filter also
prohibits CCD from receiving IR illumination – the light source that assists
camera to see in dark. Therefore, IR filter must be removed in dark to retrieve
camera’s visual ability in dark.
The function is in options of on and off.
18. Initial Î On or Off
When this function is set off, the control system will lock the zoom, focus and
iris in their current positions. Before the function is switched on again, control
panel will not make change to those. It is useful, for example, when making
continuous monitor with auto-pan
To change the setup, enter “initial” and select the wanted option. The lens
will perform a short journal of zooming when changing setting from OFF to
ON (not for process from ON to OFF).
19. Default Î OK or Cancel
This is to turn all settings to factory preset condition.
To retrieve defaults, first enter the “Default”, and choose “OK”. After the
function is activated, screen will turn into blue for few second and back to
live picture with factory settings.
Refer to the table in Appendix 2 for factory default value.
20. Freeze Î On or Off
Freeze function is used for grabbing and displaying a picture in still
condition.