CBC ZC-PT226 Manual De Usuario

 
   

                             

User’s Manual 

 

 

38

The IR blocking filter enables the PTZ camera to capture a clear image at night time 
or in very dark lighting conditions. During the day, the IR blocking filter is fitted to 
block the infrared light and ensure a clear image; at night, the IR blocking filter is 
removed to catch the available infrared rays to view images in black and white. On 
the 

23× 

model, the user can view colour images when the IR function is activated. 

 

 
Refer to the description to operate the removable IR blocking filter. 
 

•  AUTO 

The internal circuit will automatically decide when to remove the IR blocking 
filter based on the lighting conditions calculated by the internal algorithm. 

 

•  ON 

Select this option to remove the IR blocking filter. 

 

 

•  AUTO 

The internal circuit will automatically decide when to remove the IR blocking 
filter based on the image brightness level. 
 

The PTZ camera will remove the filter immediately when the threshold value 
is reached. The threshold options are <LOW>, <MID> and <HI>. A <LOW> 
threshold indicates a higher sensitivity and can improve the reliability of the 
lens.

 

 

When the IR function is enabled, the video output can be programmed as 
colour or B/W. 

 

•  ON 

Select this option to remove the IR blocking filter. 

 
 

IR FUNCTION 

THRESHOLD 

  LOW 

IR COLOUR 

 

 

 COLOUR