User`s manual

B1：Environment Threshold Value
User can adjust the environment light threshold value as to different application
locations. In External synchronization Auto type, default value is 1~2lux（there may be
slight difference because of the direction of IR LED. IR LED is on in light condition.
Threshold value can be set from 1 to 10. 1 means that the light is weak and 10 means that
the light is strong.
C1：Sensitivity Setup
When the IR LED is on, environment light threshold to close IR LED delays, 1 stands
for high sensitivity, and related delay range is narrow, IR LED on and off may switch
frequently in a certain light condition; 10 stands for low sensitivity, and related delay range
is wide, there is a huge light difference when IR LED on and off. Default value is 5.
D1：Open Time
Press iris on to enter open time setup, and move joystick leftward or rightward to
select the time value you want to change and upward or downward to change the value.
E1： Close time
Press “Iris on” to set close time and move joystick from left and right to select clock bit,
move joystick from up and down to change value.
Note: It is effective to set start time and close time of IR LED in the timing mode of IR LED
control.
F1：Zoom match
Press “Iris on” to set zoom match. When select open, illumination and power of IR LED
are matched with irradiation distance of camera. With different zoom, IR LED at its best
control and adjust power automatically. When select close, start IR LED will depends on
illumination set by user and it can’t adjust automatically. It is suggest selecting open zoom
match.
G1： Illumination of light group 1
Light group 1 is outside lane long distance IR LED, press “Iris on” to set illumination
value.
H1： Illumination of light group 2
Light group 2 is centre circle medium distance IR LED, press “Iris on” to set